chore: changelog for completion engine

Co-authored-by: Valentin Maerten <maerten.valentin@gmail.com>

.github/workflows/lint.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           go-version: ${{matrix.go-version}}
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@82606bf257cbaff209d206a39f5134f0cfbfd2ee # v9.2.1
@@ -37,7 +37,7 @@ jobs:
         with:
           python-version: 3.14
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: install check-jsonschema
         run: python -m pip install 'check-jsonschema==0.27.3'

.github/workflows/pr-build.yml

@@ -1,69 +0,0 @@
-name: PR Build
-
-on:
-  pull_request_target:
-    types: [labeled, synchronize]
-
-permissions:
-  contents: read
-  pull-requests: write
-
-jobs:
-  build:
-    if: contains(github.event.pull_request.labels.*.name, 'needs-build')
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          fetch-depth: 0
-      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
-        with:
-          go-version: "1.26.x"
-          cache: true
-      - uses: goreleaser/goreleaser-action@5daf1e915a5f0af01ddbcd89a43b8061ff4f1a89 # v7
-        with:
-          version: "~> v2"
-          args: release --snapshot --clean --config .goreleaser-pr.yml
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: task_linux_amd64
-          path: dist/task_linux_amd64.tar.gz
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: task_linux_arm64
-          path: dist/task_linux_arm64.tar.gz
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: task_darwin_amd64
-          path: dist/task_darwin_amd64.tar.gz
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: task_darwin_arm64
-          path: dist/task_darwin_arm64.tar.gz
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: task_windows_amd64
-          path: dist/task_windows_amd64.zip
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: checksums
-          path: dist/task_checksums.txt
-      - uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
-        id: find-comment
-        with:
-          token: ${{secrets.GITHUB_TOKEN}}
-          issue-number: ${{ github.event.pull_request.number }}
-          body-includes: "📦 Build artifacts ready!"
-      - uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
-        with:
-          token: ${{secrets.GITHUB_TOKEN}}
-          comment-id: ${{ steps.find-comment.outputs.comment-id }}
-          issue-number: ${{ github.event.pull_request.number }}
-          body: |
-            ## 📦 Build artifacts ready!
-
-            Download binaries from [this workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}).
-
-            Available platforms: Linux, macOS, Windows (amd64, arm64)
-          edit-mode: replace

.github/workflows/release-nightly.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
 

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
 
@@ -35,7 +35,7 @@ jobs:
         uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2
 
       - name: Install pnpm
-        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6
+        uses: pnpm/action-setup@0ebf47130e4866e96fce0953f49152a61190b271 # v6
         with:
           package_json_file: "website/package.json"
           run_install: "true"

.github/workflows/test.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ${{matrix.platform}}
     steps:
       - name: Check out code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Set up Go ${{matrix.go-version}}
         uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0

.goreleaser-pr.yml

@@ -1,31 +0,0 @@
-# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
-version: 2
-
-builds:
-  - binary: task
-    main: ./cmd/task
-    goos: [windows, darwin, linux]
-    goarch: [amd64, arm64]
-    env:
-      - CGO_ENABLED=0
-    mod_timestamp: '{{ .CommitTimestamp }}'
-    flags:
-      - -trimpath
-    ldflags:
-      - "-s -w"
-
-archives:
-  - name_template: '{{.Binary}}_{{.Os}}_{{.Arch}}'
-    files:
-      - README.md
-      - LICENSE
-      - completion/**/*
-    format_overrides:
-      - goos: windows
-        formats: [zip]
-
-snapshot:
-  version_template: 'pr-{{ .ShortCommit }}'
-
-checksum:
-  name_template: 'task_checksums.txt'

.vscode/settings-sample.json

@@ -5,6 +5,12 @@
         "Taskfile.yaml",
         "taskfile.yml",
         "taskfile.yaml"
+    ],
+    "./website/src/public/schema-taskrc.json": [
+        ".taskrc.yml",
+        ".taskrc.yaml",
+        "taskrc.yml",
+        "taskrc.yaml"
     ]
   },
   "gopls": {

CHANGELOG.md

@@ -10,6 +10,29 @@
   by @Legimity).
 - PowerShell completions now work with aliases of the `task` command, not just
   the `task` binary itself (#2852 by @kojiishi).
+- Fixed task and namespace aliases not being completed by the Zsh completion.
+  A `show-aliases` zstyle can turn this off (#2865, #2864 by @vmaerten).
+- Fixed task names containing certain characters (e.g. `\`, `_`, `^`) leaking
+  into checksum/timestamp filenames, breaking `sources:`/`generates:`
+  up-to-date detection (#2886 by @s3onghyun).
+- Fixed `for: matrix:` loops using `ref:` rows producing wrong values when the
+  same task was run concurrently (e.g. by parallel `deps`) with different vars
+  (#2890, #2894 by @amitmishra11).
+- Added a `secret: true` flag for variables that masks their value in logs,
+  `task --summary`, and command output (#2514 by @vmaerten).
+- Added the `use_gitignore` setting (global or per-task) to skip files matched
+  by your `.gitignore` when fingerprinting `sources`/`generates` and when
+  watching (#2773 by @vmaerten).
+- Added support for configuring output flags (`--output`, `--output-group-begin`,
+  `--output-group-end`, `--output-group-error-only`) via the `TASK_OUTPUT*`
+  environment variables (#2873 by @liiight).
+- Added a `--temp-dir` flag (with `TASK_TEMP_DIR` env var and `temp-dir` taskrc
+  config) to customise the directory where Task stores temporary files such as
+  checksums. Relative paths are resolved against the root Taskfile (#2891 by
+  @kjasn).
+- Unified Bash, Fish, Zsh and PowerShell completions behind a single `task
+  __complete` engine, so every shell offers the same suggestions: task names,
+  aliases, flags, flag values and per-task CLI variables (#2897 by @vmaerten).
 
 ## v3.51.1 - 2026-05-16
 

cmd/task/complete_cmd.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/spf13/pflag"
+
+	"github.com/go-task/task/v3"
+	"github.com/go-task/task/v3/internal/complete"
+)
+
+func runComplete(args []string) error {
+	dir, entrypoint, global := extractTaskfileFlags(args)
+
+	e := task.NewExecutor(
+		task.WithDir(dir),
+		task.WithEntrypoint(entrypoint),
+		task.WithStdout(io.Discard),
+		task.WithStderr(io.Discard),
+		task.WithVersionCheck(false),
+	)
+	if global {
+		if home, err := os.UserHomeDir(); err == nil {
+			e.Options(task.WithDir(home))
+		}
+	}
+
+	// Best-effort: a missing or broken Taskfile must not break completion.
+	_ = e.Setup()
+
+	suggs, dirv := complete.Complete(e, pflag.CommandLine, args)
+	complete.Write(os.Stdout, suggs, dirv)
+	return nil
+}
+
+func extractTaskfileFlags(args []string) (dir, entrypoint string, global bool) {
+	fs := pflag.NewFlagSet("complete", pflag.ContinueOnError)
+	fs.SetOutput(io.Discard)
+	fs.ParseErrorsAllowlist.UnknownFlags = true
+	fs.Usage = func() {}
+	fs.StringVarP(&dir, "dir", "d", "", "")
+	fs.StringVarP(&entrypoint, "taskfile", "t", "", "")
+	fs.BoolVarP(&global, "global", "g", false, "")
+	_ = fs.Parse(args)
+	return
+}

cmd/task/task.go

@@ -13,6 +13,7 @@ import (
 	"github.com/go-task/task/v3/args"
 	"github.com/go-task/task/v3/errors"
 	"github.com/go-task/task/v3/experiments"
+	"github.com/go-task/task/v3/internal/complete"
 	"github.com/go-task/task/v3/internal/filepathext"
 	"github.com/go-task/task/v3/internal/flags"
 	"github.com/go-task/task/v3/internal/logger"
@@ -58,6 +59,12 @@ func emitCIErrorAnnotation(err error) {
 }
 
 func run() error {
+	// Dispatched before flag validation: the args after __complete are the
+	// user's command line, not Task's own flags.
+	if complete.IsActive() {
+		return runComplete(os.Args[2:])
+	}
+
 	log := &logger.Logger{
 		Stdout:  os.Stdout,
 		Stderr:  os.Stderr,

compiler.go

@@ -51,7 +51,7 @@ func (c *Compiler) getVariables(t *ast.Task, call *Call, evaluateShVars bool) (*
 		return nil, err
 	}
 	for k, v := range specialVars {
-		result.Set(k, ast.Var{Value: v})
+		result.Set(k, ast.Var{Value: v, Secret: false})
 	}
 
 	getRangeFunc := func(dir string) func(k string, v ast.Var) error {
@@ -63,12 +63,12 @@ func (c *Compiler) getVariables(t *ast.Task, call *Call, evaluateShVars bool) (*
 			// This stops empty interface errors when using the templater to replace values later
 			// Preserve the Sh field so it can be displayed in summary
 			if !evaluateShVars && newVar.Value == nil {
-				result.Set(k, ast.Var{Value: "", Sh: newVar.Sh})
+				result.Set(k, ast.Var{Value: "", Sh: newVar.Sh, Secret: v.Secret})
 				return nil
 			}
 			// If the variable should not be evaluated and it is set, we can set it and return
 			if !evaluateShVars {
-				result.Set(k, ast.Var{Value: newVar.Value, Sh: newVar.Sh})
+				result.Set(k, ast.Var{Value: newVar.Value, Sh: newVar.Sh, Secret: v.Secret})
 				return nil
 			}
 			// Now we can check for errors since we've handled all the cases when we don't want to evaluate
@@ -77,7 +77,7 @@ func (c *Compiler) getVariables(t *ast.Task, call *Call, evaluateShVars bool) (*
 			}
 			// If the variable is already set, we can set it and return
 			if newVar.Value != nil || newVar.Sh == nil {
-				result.Set(k, ast.Var{Value: newVar.Value})
+				result.Set(k, ast.Var{Value: newVar.Value, Secret: v.Secret})
 				return nil
 			}
 			// If the variable is dynamic, we need to resolve it first
@@ -85,7 +85,7 @@ func (c *Compiler) getVariables(t *ast.Task, call *Call, evaluateShVars bool) (*
 			if err != nil {
 				return err
 			}
-			result.Set(k, ast.Var{Value: static})
+			result.Set(k, ast.Var{Value: static, Secret: v.Secret})
 			return nil
 		}
 	}
@@ -184,7 +184,12 @@ func (c *Compiler) HandleDynamicVar(v ast.Var, dir string, e []string) (string,
 	result = strings.TrimSuffix(result, "\n")
 
 	c.dynamicCache[*v.Sh] = result
-	c.Logger.VerboseErrf(logger.Magenta, "task: dynamic variable: %q result: %q\n", *v.Sh, result)
+	// Never print the resolved value of a secret variable, even in verbose mode
+	logResult := result
+	if v.Secret {
+		logResult = "*****"
+	}
+	c.Logger.VerboseErrf(logger.Magenta, "task: dynamic variable: %q result: %q\n", *v.Sh, logResult)
 
 	return result, nil
 }

completion/bash/task.bash

@@ -1,60 +1,69 @@
 # vim: set tabstop=2 shiftwidth=2 expandtab:
+#
+# Thin wrapper around `task __complete`. All suggestion logic lives in the
+# Go engine — do not add completion logic here.
 
-_GO_TASK_COMPLETION_LIST_OPTION='--list-all'
 TASK_CMD="${TASK_EXE:-task}"
 
-function _task()
-{
+_task() {
   local cur prev words cword
   _init_completion -n : || return
 
-  # Check for `--` within command-line and quit or strip suffix.
-  local i
-  for i in "${!words[@]}"; do
-    if [ "${words[$i]}" == "--" ]; then
-      # Do not complete words following `--` passed to CLI_ARGS.
-      [ $cword -gt $i ] && return
-      # Remove the words following `--` to not put --list in CLI_ARGS.
-      words=( "${words[@]:0:$i}" )
-      break
-    fi
+  local -a args=()
+  if (( cword > 0 )); then
+    args=( "${words[@]:1:cword}" )
+  fi
+  if (( ${#args[@]} == 0 )); then
+    args=( "" )
+  fi
+
+  local output
+  output=$("$TASK_CMD" __complete "${args[@]}" 2>/dev/null)
+  if [[ -z "$output" ]]; then
+    _filedir
+    return
+  fi
+
+  local -a lines=()
+  local line
+  while IFS= read -r line; do
+    lines+=( "$line" )
+  done <<< "$output"
+
+  local last_idx=$(( ${#lines[@]} - 1 ))
+  local directive="${lines[$last_idx]#:}"
+  unset 'lines[$last_idx]'
+
+  if (( directive & 8 )); then
+    local exts=""
+    for line in "${lines[@]}"; do
+      exts+="${exts:+|}$line"
+    done
+    _filedir "@($exts)"
+    return
+  fi
+
+  if (( directive & 16 )); then
+    _filedir -d
+    return
+  fi
+
+  local -a values=()
+  for line in "${lines[@]}"; do
+    values+=( "${line%%$'\t'*}" )
   done
 
-  # Handle special arguments of options.
-  case "$prev" in
-    -d|--dir|--remote-cache-dir)
-      _filedir -d
-      return $?
-    ;;
-    --cacert|--cert|--cert-key)
-      _filedir
-      return $?
-    ;;
-    -t|--taskfile)
-      _filedir yaml || return $?
-      _filedir yml
-      return $?
-    ;;
-    -o|--output)
-      COMPREPLY=( $( compgen -W "interleaved group prefixed" -- $cur ) )
-      return 0
-    ;;
-  esac
+  COMPREPLY=( $( compgen -W "${values[*]}" -- "$cur" ) )
 
-  # Handle normal options.
-  case "$cur" in
-    -*)
-      COMPREPLY=( $( compgen -W "$(_parse_help $1)" -- $cur ) )
-      return 0
-    ;;
-  esac
+  if (( directive & 2 )); then
+    compopt -o nospace 2>/dev/null
+  fi
 
-  # Prepare task name completions.
-  local tasks=( $( "${words[@]}" --silent $_GO_TASK_COMPLETION_LIST_OPTION 2> /dev/null ) )
-  COMPREPLY=( $( compgen -W "${tasks[*]}" -- "$cur" ) )
-
-  # Post-process because task names might contain colons.
   __ltrim_colon_completions "$cur"
+
+  if (( ${#COMPREPLY[@]} == 0 )) && ! (( directive & 4 )); then
+    _filedir
+  fi
 }
 
 complete -F _task "$TASK_CMD"

completion/fish/task.fish

@@ -1,120 +1,46 @@
+# Thin wrapper around `task __complete`. All suggestion logic lives in the
+# Go engine — do not add completion logic here.
+
 set -l GO_TASK_PROGNAME (if set -q GO_TASK_PROGNAME; echo $GO_TASK_PROGNAME; else if set -q TASK_EXE; echo $TASK_EXE; else; echo task; end)
 
-# Cache variables for experiments (global)
-set -g __task_experiments_cache ""
-set -g __task_experiments_cache_time 0
+function __task_complete --inherit-variable GO_TASK_PROGNAME
+    set -l tokens (commandline -opc)
+    set -l current (commandline -ct)
+    set -l args
+    if test (count $tokens) -gt 1
+        set args $tokens[2..-1]
+    end
+    set args $args $current
 
-# Helper function to get experiments with 1-second cache
-function __task_get_experiments --inherit-variable GO_TASK_PROGNAME
-    set -l now (date +%s)
-    set -l ttl 1  # Cache for 1 second only
-
-    # Return cached value if still valid
-    if test (math "$now - $__task_experiments_cache_time") -lt $ttl
-        printf '%s\n' $__task_experiments_cache
+    set -l output ($GO_TASK_PROGNAME __complete $args 2>/dev/null)
+    set -l count (count $output)
+    if test $count -eq 0
         return
     end
 
-    # Refresh cache
-    set -g __task_experiments_cache ($GO_TASK_PROGNAME --experiments 2>/dev/null)
-    set -g __task_experiments_cache_time $now
-    printf '%s\n' $__task_experiments_cache
-end
-
-# Helper function to check if an experiment is enabled
-function __task_is_experiment_enabled
-    set -l experiment $argv[1]
-    __task_get_experiments | string match -qr "^\* $experiment:.*on"
-end
-
-function __task_get_tasks --description "Prints all available tasks with their description" --inherit-variable GO_TASK_PROGNAME
-  # Check if the global task is requested
-  set -l global_task false
-  commandline --current-process | read --tokenize --list --local cmd_args
-  for arg in $cmd_args
-    if test "_$arg" = "_--"
-      break # ignore arguments to be passed to the task
+    set -l last $output[$count]
+    if not string match -q ':*' -- $last
+        # Protocol violation: emit raw lines as a fallback.
+        for line in $output
+            echo $line
+        end
+        return
     end
-    if test "_$arg" = "_--global" -o "_$arg" = "_-g"
-      set global_task true
-      break
+
+    set -l directive (string replace -r '^:' '' -- $last)
+    # FilterFileExt / FilterDirs are handled by fish's native file completion
+    # via the separate `complete` registrations below.
+    if test (math "$directive & 8") -ne 0; or test (math "$directive & 16") -ne 0
+        return
     end
-  end
 
-  # Read the list of tasks (and potential errors)
-  if $global_task
-    $GO_TASK_PROGNAME --global --list-all
-  else
-    $GO_TASK_PROGNAME --list-all
-  end 2>&1 | read -lz rawOutput
-
-  # Return on non-zero exit code (for cases when there is no Taskfile found or etc.)
-  if test $status -ne 0
-    return
-  end
-
-  # Grab names and descriptions (if any) of the tasks
-  set -l output (echo $rawOutput | sed -e '1d; s/\* \(.*\):[[:space:]]\{2,\}\(.*\)[[:space:]]\{2,\}(\(aliases.*\))/\1\t\2\t\3/' -e 's/\* \(.*\):[[:space:]]\{2,\}\(.*\)/\1\t\2/'| string split0)
-  if test $output
-    echo $output
-  end
+    if test $count -gt 1
+        for line in $output[1..(math $count - 1)]
+            echo $line
+        end
+    end
 end
 
-complete -c $GO_TASK_PROGNAME \
-  -d 'Runs the specified task(s). Falls back to the "default" task if no task name was specified, or lists all tasks if an unknown task name was specified.' \
-  -xa "(__task_get_tasks)" \
-  -n "not __fish_seen_subcommand_from --"
-
-# Standard flags
-complete -c $GO_TASK_PROGNAME -s a -l list-all                  -d 'list all tasks'
-complete -c $GO_TASK_PROGNAME -s c -l color                     -d 'colored output (default true)'
-complete -c $GO_TASK_PROGNAME -s C -l concurrency               -d 'limit number of concurrent tasks'
-complete -c $GO_TASK_PROGNAME      -l completion                -d 'generate shell completion script' -xa "bash zsh fish powershell"
-complete -c $GO_TASK_PROGNAME -s d -l dir                       -d 'set directory of execution'
-complete -c $GO_TASK_PROGNAME      -l disable-fuzzy             -d 'disable fuzzy matching for task names'
-complete -c $GO_TASK_PROGNAME -s n -l dry                       -d 'compile and print tasks without executing'
-complete -c $GO_TASK_PROGNAME -s x -l exit-code                 -d 'pass-through exit code of task command'
-complete -c $GO_TASK_PROGNAME      -l experiments               -d 'list available experiments'
-complete -c $GO_TASK_PROGNAME -s F -l failfast                  -d 'when running tasks in parallel, stop all tasks if one fails'
-complete -c $GO_TASK_PROGNAME -s f -l force                     -d 'force execution even when up-to-date'
-complete -c $GO_TASK_PROGNAME -s g -l global                    -d 'run global Taskfile from home directory'
-complete -c $GO_TASK_PROGNAME -s h -l help                      -d 'show help'
-complete -c $GO_TASK_PROGNAME -s i -l init                      -d 'create new Taskfile'
-complete -c $GO_TASK_PROGNAME      -l insecure                  -d 'allow insecure Taskfile downloads'
-complete -c $GO_TASK_PROGNAME -s I -l interval                  -d 'interval to watch for changes'
-complete -c $GO_TASK_PROGNAME -s j -l json                      -d 'format task list as JSON'
-complete -c $GO_TASK_PROGNAME -s l -l list                      -d 'list tasks with descriptions'
-complete -c $GO_TASK_PROGNAME      -l nested                    -d 'nest namespaces when listing as JSON'
-complete -c $GO_TASK_PROGNAME      -l no-status                 -d 'ignore status when listing as JSON'
-complete -c $GO_TASK_PROGNAME      -l interactive               -d 'prompt for missing required variables'
-complete -c $GO_TASK_PROGNAME -s o -l output                    -d 'set output style' -xa "interleaved group prefixed"
-complete -c $GO_TASK_PROGNAME      -l output-group-begin        -d 'message template before grouped output'
-complete -c $GO_TASK_PROGNAME      -l output-group-end          -d 'message template after grouped output'
-complete -c $GO_TASK_PROGNAME      -l output-group-error-only   -d 'hide output from successful tasks'
-complete -c $GO_TASK_PROGNAME -s p -l parallel                  -d 'execute tasks in parallel'
-complete -c $GO_TASK_PROGNAME -s s -l silent                    -d 'disable echoing'
-complete -c $GO_TASK_PROGNAME      -l sort                      -d 'set task sorting order' -xa "default alphanumeric none"
-complete -c $GO_TASK_PROGNAME      -l status                    -d 'exit non-zero if tasks not up-to-date'
-complete -c $GO_TASK_PROGNAME      -l summary                   -d 'show task summary'
-complete -c $GO_TASK_PROGNAME -s t -l taskfile                  -d 'choose Taskfile to run'
-complete -c $GO_TASK_PROGNAME -s v -l verbose                   -d 'verbose output'
-complete -c $GO_TASK_PROGNAME      -l version                   -d 'show version'
-complete -c $GO_TASK_PROGNAME -s w -l watch                     -d 'watch mode, re-run on changes'
-complete -c $GO_TASK_PROGNAME -s y -l yes                       -d 'assume yes to all prompts'
-
-# Experimental flags (dynamically checked at completion time via -n condition)
-# GentleForce experiment
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled GENTLE_FORCE" -l force-all -d 'force execution of task and all dependencies'
-
-# RemoteTaskfiles experiment - Options
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l offline          -d 'use only local or cached Taskfiles'
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l timeout          -d 'timeout for remote Taskfile downloads'
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l expiry           -d 'cache expiry duration'
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l remote-cache-dir -d 'directory to cache remote Taskfiles' -xa "(__fish_complete_directories)"
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l cacert           -d 'custom CA certificate for TLS' -r
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l cert             -d 'client certificate for mTLS' -r
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l cert-key         -d 'client certificate private key' -r
-
-# RemoteTaskfiles experiment - Operations
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l download    -d 'download remote Taskfile'
-complete -c $GO_TASK_PROGNAME -n "__task_is_experiment_enabled REMOTE_TASKFILES" -l clear-cache -d 'clear remote Taskfile cache'
+complete -c $GO_TASK_PROGNAME --no-files -a "(__task_complete)"
+complete -c $GO_TASK_PROGNAME -s t -l taskfile -r -k -a "(__fish_complete_suffix .yml .yaml)"
+complete -c $GO_TASK_PROGNAME -s d -l dir -xa "(__fish_complete_directories)"

completion/ps/task.ps1

@@ -1,94 +1,61 @@
 using namespace System.Management.Automation
 
+# Thin wrapper around `task __complete`. All suggestion logic lives in the
+# Go engine — do not add completion logic here.
+
 $cmdNames = @('task') + (Get-Alias -Definition task,task.exe,*\task,*\task.exe -ErrorAction SilentlyContinue).Name | Select-Object -Unique
 
-Register-ArgumentCompleter -CommandName $cmdNames -ScriptBlock {
-	param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameters)
+Register-ArgumentCompleter -Native -CommandName $cmdNames -ScriptBlock {
+	param($wordToComplete, $commandAst, $cursorPosition)
 
-	if ($commandName.StartsWith('-')) {
-		$completions = @(
-			# Standard flags (alphabetical order)
-			[CompletionResult]::new('-a', '-a', [CompletionResultType]::ParameterName, 'list all tasks'),
-			[CompletionResult]::new('--list-all', '--list-all', [CompletionResultType]::ParameterName, 'list all tasks'),
-			[CompletionResult]::new('-c', '-c', [CompletionResultType]::ParameterName, 'colored output'),
-			[CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'colored output'),
-			[CompletionResult]::new('-C', '-C', [CompletionResultType]::ParameterName, 'limit concurrent tasks'),
-			[CompletionResult]::new('--concurrency', '--concurrency', [CompletionResultType]::ParameterName, 'limit concurrent tasks'),
-			[CompletionResult]::new('--completion', '--completion', [CompletionResultType]::ParameterName, 'generate shell completion'),
-			[CompletionResult]::new('-d', '-d', [CompletionResultType]::ParameterName, 'set directory'),
-			[CompletionResult]::new('--dir', '--dir', [CompletionResultType]::ParameterName, 'set directory'),
-			[CompletionResult]::new('--disable-fuzzy', '--disable-fuzzy', [CompletionResultType]::ParameterName, 'disable fuzzy matching'),
-			[CompletionResult]::new('-n', '-n', [CompletionResultType]::ParameterName, 'dry run'),
-			[CompletionResult]::new('--dry', '--dry', [CompletionResultType]::ParameterName, 'dry run'),
-			[CompletionResult]::new('-x', '-x', [CompletionResultType]::ParameterName, 'pass-through exit code'),
-			[CompletionResult]::new('--exit-code', '--exit-code', [CompletionResultType]::ParameterName, 'pass-through exit code'),
-			[CompletionResult]::new('--experiments', '--experiments', [CompletionResultType]::ParameterName, 'list experiments'),
-			[CompletionResult]::new('-F', '-F', [CompletionResultType]::ParameterName, 'fail fast on pallalel tasks'),
-			[CompletionResult]::new('--failfast', '--failfast', [CompletionResultType]::ParameterName, 'force execution'),
-			[CompletionResult]::new('-f', '-f', [CompletionResultType]::ParameterName, 'force execution'),
-			[CompletionResult]::new('--force', '--force', [CompletionResultType]::ParameterName, 'force execution'),
-			[CompletionResult]::new('-g', '-g', [CompletionResultType]::ParameterName, 'run global Taskfile'),
-			[CompletionResult]::new('--global', '--global', [CompletionResultType]::ParameterName, 'run global Taskfile'),
-			[CompletionResult]::new('-h', '-h', [CompletionResultType]::ParameterName, 'show help'),
-			[CompletionResult]::new('--help', '--help', [CompletionResultType]::ParameterName, 'show help'),
-			[CompletionResult]::new('-i', '-i', [CompletionResultType]::ParameterName, 'create new Taskfile'),
-			[CompletionResult]::new('--init', '--init', [CompletionResultType]::ParameterName, 'create new Taskfile'),
-			[CompletionResult]::new('--insecure', '--insecure', [CompletionResultType]::ParameterName, 'allow insecure downloads'),
-			[CompletionResult]::new('-I', '-I', [CompletionResultType]::ParameterName, 'watch interval'),
-			[CompletionResult]::new('--interval', '--interval', [CompletionResultType]::ParameterName, 'watch interval'),
-			[CompletionResult]::new('-j', '-j', [CompletionResultType]::ParameterName, 'format as JSON'),
-			[CompletionResult]::new('--json', '--json', [CompletionResultType]::ParameterName, 'format as JSON'),
-			[CompletionResult]::new('-l', '-l', [CompletionResultType]::ParameterName, 'list tasks'),
-			[CompletionResult]::new('--list', '--list', [CompletionResultType]::ParameterName, 'list tasks'),
-			[CompletionResult]::new('--nested', '--nested', [CompletionResultType]::ParameterName, 'nest namespaces in JSON'),
-			[CompletionResult]::new('--no-status', '--no-status', [CompletionResultType]::ParameterName, 'ignore status in JSON'),
-			[CompletionResult]::new('--interactive', '--interactive', [CompletionResultType]::ParameterName, 'prompt for missing required variables'),
-			[CompletionResult]::new('-o', '-o', [CompletionResultType]::ParameterName, 'set output style'),
-			[CompletionResult]::new('--output', '--output', [CompletionResultType]::ParameterName, 'set output style'),
-			[CompletionResult]::new('--output-group-begin', '--output-group-begin', [CompletionResultType]::ParameterName, 'template before group'),
-			[CompletionResult]::new('--output-group-end', '--output-group-end', [CompletionResultType]::ParameterName, 'template after group'),
-			[CompletionResult]::new('--output-group-error-only', '--output-group-error-only', [CompletionResultType]::ParameterName, 'hide successful output'),
-			[CompletionResult]::new('-p', '-p', [CompletionResultType]::ParameterName, 'execute in parallel'),
-			[CompletionResult]::new('--parallel', '--parallel', [CompletionResultType]::ParameterName, 'execute in parallel'),
-			[CompletionResult]::new('-s', '-s', [CompletionResultType]::ParameterName, 'silent mode'),
-			[CompletionResult]::new('--silent', '--silent', [CompletionResultType]::ParameterName, 'silent mode'),
-			[CompletionResult]::new('--sort', '--sort', [CompletionResultType]::ParameterName, 'task sorting order'),
-			[CompletionResult]::new('--status', '--status', [CompletionResultType]::ParameterName, 'check task status'),
-			[CompletionResult]::new('--summary', '--summary', [CompletionResultType]::ParameterName, 'show task summary'),
-			[CompletionResult]::new('-t', '-t', [CompletionResultType]::ParameterName, 'choose Taskfile'),
-			[CompletionResult]::new('--taskfile', '--taskfile', [CompletionResultType]::ParameterName, 'choose Taskfile'),
-			[CompletionResult]::new('-v', '-v', [CompletionResultType]::ParameterName, 'verbose output'),
-			[CompletionResult]::new('--verbose', '--verbose', [CompletionResultType]::ParameterName, 'verbose output'),
-			[CompletionResult]::new('--version', '--version', [CompletionResultType]::ParameterName, 'show version'),
-			[CompletionResult]::new('-w', '-w', [CompletionResultType]::ParameterName, 'watch mode'),
-			[CompletionResult]::new('--watch', '--watch', [CompletionResultType]::ParameterName, 'watch mode'),
-			[CompletionResult]::new('-y', '-y', [CompletionResultType]::ParameterName, 'assume yes'),
-			[CompletionResult]::new('--yes', '--yes', [CompletionResultType]::ParameterName, 'assume yes')
-		)
+	$TaskExe = if ($env:TASK_EXE) { $env:TASK_EXE } else { 'task' }
 
-		# Experimental flags (dynamically added based on enabled experiments)
-		$experiments = & task --experiments 2>$null | Out-String
-
-		if ($experiments -match '\* GENTLE_FORCE:.*on') {
-			$completions += [CompletionResult]::new('--force-all', '--force-all', [CompletionResultType]::ParameterName, 'force all dependencies')
+	# Words after the program name, truncated to the cursor.
+	$argsToPass = @()
+	$elements = $commandAst.CommandElements
+	if ($elements.Count -gt 1) {
+		for ($i = 1; $i -lt $elements.Count; $i++) {
+			$el = $elements[$i]
+			if ($el.Extent.StartOffset -ge $cursorPosition) { break }
+			$argsToPass += $el.ToString()
 		}
-
-		if ($experiments -match '\* REMOTE_TASKFILES:.*on') {
-			# Options
-			$completions += [CompletionResult]::new('--offline', '--offline', [CompletionResultType]::ParameterName, 'use cached Taskfiles')
-			$completions += [CompletionResult]::new('--timeout', '--timeout', [CompletionResultType]::ParameterName, 'download timeout')
-			$completions += [CompletionResult]::new('--expiry', '--expiry', [CompletionResultType]::ParameterName, 'cache expiry')
-			$completions += [CompletionResult]::new('--remote-cache-dir', '--remote-cache-dir', [CompletionResultType]::ParameterName, 'cache directory')
-			$completions += [CompletionResult]::new('--cacert', '--cacert', [CompletionResultType]::ParameterName, 'custom CA certificate')
-			$completions += [CompletionResult]::new('--cert', '--cert', [CompletionResultType]::ParameterName, 'client certificate')
-			$completions += [CompletionResult]::new('--cert-key', '--cert-key', [CompletionResultType]::ParameterName, 'client private key')
-			# Operations
-			$completions += [CompletionResult]::new('--download', '--download', [CompletionResultType]::ParameterName, 'download remote Taskfile')
-			$completions += [CompletionResult]::new('--clear-cache', '--clear-cache', [CompletionResultType]::ParameterName, 'clear cache')
-		}
-
-		return $completions.Where{ $_.CompletionText.StartsWith($commandName) }
+	}
+	# The trailing word (possibly empty) must reach the engine so it knows
+	# the cursor sits on a fresh word.
+	if ($argsToPass.Count -gt 0 -and $argsToPass[-1] -eq $wordToComplete) {
+		$argsToPass[-1] = $wordToComplete
+	} else {
+		$argsToPass += $wordToComplete
 	}
 
-	return 	$(task --list-all --silent) | Where-Object { $_.StartsWith($commandName) } | ForEach-Object { return $_ + " " }
+	$output = & $TaskExe __complete @argsToPass 2>$null
+	if (-not $output) { return }
+
+	$lines = @($output)
+	if ($lines.Count -eq 0) { return }
+	$last = $lines[-1]
+	if (-not $last.StartsWith(':')) { return }
+
+	$directive = [int]($last.Substring(1))
+	$data = if ($lines.Count -gt 1) { $lines[0..($lines.Count - 2)] } else { @() }
+
+	# FilterFileExt
+	if ($directive -band 8) {
+		$patterns = $data | ForEach-Object { "*.$_" }
+		return Get-ChildItem -Path . -Include $patterns -File -ErrorAction SilentlyContinue |
+			ForEach-Object { [CompletionResult]::new($_.Name, $_.Name, [CompletionResultType]::ProviderItem, $_.Name) }
+	}
+
+	# FilterDirs
+	if ($directive -band 16) {
+		return Get-ChildItem -Path . -Directory -ErrorAction SilentlyContinue |
+			ForEach-Object { [CompletionResult]::new($_.Name, $_.Name, [CompletionResultType]::ProviderContainer, $_.Name) }
+	}
+
+	return $data | ForEach-Object {
+		$parts = $_ -split "`t", 2
+		$value = $parts[0]
+		$desc = if ($parts.Count -gt 1 -and $parts[1]) { $parts[1] } else { $value }
+		[CompletionResult]::new($value, $value, [CompletionResultType]::ParameterValue, $desc)
+	}
 }

completion/zsh/_task

@@ -1,154 +1,65 @@
 #compdef task
-typeset -A opt_args
+#
+# Thin wrapper around `task __complete`. All suggestion logic lives in the
+# Go engine — do not add completion logic here.
+
 TASK_CMD="${TASK_EXE:-task}"
-compdef _task "$TASK_CMD"
-
-_GO_TASK_COMPLETION_LIST_OPTION="${GO_TASK_COMPLETION_LIST_OPTION:---list-all}"
-
-# Check if an experiment is enabled
-function __task_is_experiment_enabled() {
-    local experiment=$1
-    task --experiments 2>/dev/null | grep -q "^\* ${experiment}:.*on"
-}
-
-# Listing commands from Taskfile.yml
-function __task_list() {
-    local -a scripts cmd
-    local -i enabled=0
-    local taskfile item task desc
-
-    cmd=($TASK_CMD)
-    taskfile=${(Qv)opt_args[(i)-t|--taskfile]}
-    taskfile=${taskfile//\~/$HOME}
-
-    for arg in "${words[@]:0:$CURRENT}"; do
-        if [[ "$arg" = "--" ]]; then
-            # Use default completion for words after `--` as they are CLI_ARGS.
-            _default
-            return 0
-        fi
-    done
-
-    if [[ -n "$taskfile" && -f "$taskfile" ]]; then
-        cmd+=(--taskfile "$taskfile")
-    fi
-
-    # Check if global flag is set
-    if (( ${+opt_args[-g]} || ${+opt_args[--global]} )); then
-        cmd+=(--global)
-    fi
-
-    if output=$("${cmd[@]}" $_GO_TASK_COMPLETION_LIST_OPTION 2>/dev/null); then
-        enabled=1
-    fi
-
-    (( enabled )) || return 0
-
-    scripts=()
-
-    # Read zstyle verbose option (default = true via -T)
-    local show_desc
-    zstyle -T ":completion:${curcontext}:" verbose && show_desc=true || show_desc=false
-
-    for item in "${(@)${(f)output}[2,-1]#\* }"; do
-        task="${item%%:[[:space:]]*}"
-
-        if [[ "$show_desc" == "true" ]]; then
-            local desc="${item##[^[:space:]]##[[:space:]]##}"
-            scripts+=( "${task//:/\\:}:$desc" )
-        else
-            scripts+=( "$task" )
-        fi
-    done
-
-    if [[ "$show_desc" == "true" ]]; then
-        _describe 'Task to run' scripts
-    else
-        compadd -Q -a scripts
-    fi
-}
 
 _task() {
-    local -a standard_args operation_args
+    local -a args lines completions opts
+    local output directive line
 
-    standard_args=(
-        '(-C --concurrency)'{-C,--concurrency}'[limit number of concurrent tasks]: '
-        '(-p --parallel)'{-p,--parallel}'[run command-line tasks in parallel]'
-        '(-F --failfast)'{-F,--failfast}'[when running tasks in parallel, stop all tasks if one fails]'
-        '(-f --force)'{-f,--force}'[run even if task is up-to-date]'
-        '(-c --color)'{-c,--color}'[colored output]'
-        '(--completion)--completion[generate shell completion script]:shell:(bash zsh fish powershell)'
-        '(-d --dir)'{-d,--dir}'[dir to run in]:execution dir:_dirs'
-        '(--disable-fuzzy)--disable-fuzzy[disable fuzzy matching for task names]'
-        '(-n --dry)'{-n,--dry}'[compiles and prints tasks without executing]'
-        '(--dry)--dry[dry-run mode, compile and print tasks only]'
-        '(-x --exit-code)'{-x,--exit-code}'[pass-through exit code of task command]'
-        '(--experiments)--experiments[list available experiments]'
-        '(-g --global)'{-g,--global}'[run global Taskfile from home directory]'
-        '(--insecure)--insecure[allow insecure Taskfile downloads]'
-        '(-I --interval)'{-I,--interval}'[interval to watch for changes]:duration: '
-        '(-j --json)'{-j,--json}'[format task list as JSON]'
-        '(--nested)--nested[nest namespaces when listing as JSON]'
-        '(--no-status)--no-status[ignore status when listing as JSON]'
-        '(--interactive)--interactive[prompt for missing required variables]'
-        '(-o --output)'{-o,--output}'[set output style]:style:(interleaved group prefixed)'
-        '(--output-group-begin)--output-group-begin[message template before grouped output]:template text: '
-        '(--output-group-end)--output-group-end[message template after grouped output]:template text: '
-        '(--output-group-error-only)--output-group-error-only[hide output from successful tasks]'
-        '(-s --silent)'{-s,--silent}'[disable echoing]'
-        '(--sort)--sort[set task sorting order]:order:(default alphanumeric none)'
-        '(--status)--status[exit non-zero if supplied tasks not up-to-date]'
-        '(--summary)--summary[show summary\: field from tasks instead of running them]'
-        '(-t --taskfile)'{-t,--taskfile}'[specify a different taskfile]:taskfile:_files'
-        '(-v --verbose)'{-v,--verbose}'[verbose mode]'
-        '(-w --watch)'{-w,--watch}'[watch-mode for given tasks, re-run when inputs change]'
-        '(-y --yes)'{-y,--yes}'[assume yes to all prompts]'
-    )
+    # (@) preserves a trailing empty string, which the engine relies on to
+    # know the cursor is on a fresh word.
+    args=("${(@)words[2,CURRENT]}")
+    (( ${#args} == 0 )) && args=("")
 
-    # Experimental flags (dynamically added based on enabled experiments)
-    # Options (modify behavior)
-    if __task_is_experiment_enabled "GENTLE_FORCE"; then
-        standard_args+=('(--force-all)--force-all[force execution of task and all dependencies]')
+    output=$("$TASK_CMD" __complete "${args[@]}" 2>/dev/null)
+    if [[ -z "$output" ]]; then
+        _files
+        return
     fi
 
-    if __task_is_experiment_enabled "REMOTE_TASKFILES"; then
-        standard_args+=(
-            '(--offline --download)--offline[use only local or cached Taskfiles]'
-            '(--timeout)--timeout[timeout for remote Taskfile downloads]:duration: '
-            '(--expiry)--expiry[cache expiry duration]:duration: '
-            '(--remote-cache-dir)--remote-cache-dir[directory to cache remote Taskfiles]:cache dir:_dirs'
-            '(--cacert)--cacert[custom CA certificate for TLS]:file:_files'
-            '(--cert)--cert[client certificate for mTLS]:file:_files'
-            '(--cert-key)--cert-key[client certificate private key]:file:_files'
-        )
+    lines=("${(f)output}")
+    directive="${lines[-1]#:}"
+    lines=("${(@)lines[1,-2]}")
+
+    if (( directive & 8 )); then
+        local -a globs
+        for line in "${lines[@]}"; do
+            globs+=("*.${line}")
+        done
+        _files -g "(${(j:|:)globs})"
+        return
     fi
 
-    operation_args=(
-        # Task names completion (can be specified multiple times)
-        '(operation)*: :__task_list'
-        # Operational args completion (mutually exclusive)
-        + '(operation)'
-            '(*)'{-l,--list}'[list describable tasks]'
-            '(*)'{-a,--list-all}'[list all tasks]'
-            '(*)'{-i,--init}'[create new Taskfile.yml]'
-            '(- *)'{-h,--help}'[show help]'
-            '(- *)--version[show version and exit]'
-    )
-
-    # Experimental operations (dynamically added based on enabled experiments)
-    if __task_is_experiment_enabled "REMOTE_TASKFILES"; then
-        standard_args+=(
-            '(--offline --clear-cache)--download[download remote Taskfile]'
-        )
-        operation_args+=(
-            '(* --download)--clear-cache[clear remote Taskfile cache]'
-        )
+    if (( directive & 16 )); then
+        _path_files -/
+        return
     fi
 
-    _arguments -S $standard_args $operation_args
+    # `:` inside the value must be escaped: _describe splits on the first
+    # unescaped colon (e.g. "docs:serve" would otherwise become value "docs").
+    local value desc
+    for line in "${lines[@]}"; do
+        if [[ "$line" == *$'\t'* ]]; then
+            value="${line%%$'\t'*}"
+            desc="${line#*$'\t'}"
+            completions+=("${value//:/\\:}:$desc")
+        else
+            completions+=("${line//:/\\:}")
+        fi
+    done
+
+    (( directive & 2 ))  && opts+=(-S '')
+    (( directive & 32 )) && opts+=(-V)
+
+    if (( ${#completions} > 0 )); then
+        _describe -t tasks 'task' completions "${opts[@]}"
+    fi
+
+    (( directive & 4 )) && return
+    _files
 }
 
-# don't run the completion function when being source-ed or eval-ed
-if [ "$funcstack[1]" = "_task" ]; then
-    _task "$@"
-fi
+compdef _task "$TASK_CMD"

executor.go

@@ -29,6 +29,7 @@ type (
 		Dir                 string
 		Entrypoint          string
 		TempDir             TempDir
+		TempDirPath         string
 		Force               bool
 		ForceAll            bool
 		Insecure            bool
@@ -165,6 +166,22 @@ func (o *tempDirOption) ApplyToExecutor(e *Executor) {
 	e.TempDir = o.tempDir
 }
 
+// WithTempDirPath sets an unresolved path used to build [Executor.TempDir]
+// during [Executor.Setup]. Relative paths are resolved from the root Taskfile
+// directory. Use [WithTempDir] when the remote and fingerprint directories have
+// already been resolved.
+func WithTempDirPath(path string) ExecutorOption {
+	return &tempDirPathOption{path: path}
+}
+
+type tempDirPathOption struct {
+	path string
+}
+
+func (o *tempDirPathOption) ApplyToExecutor(e *Executor) {
+	e.TempDirPath = o.path
+}
+
 // WithForce ensures that the [Executor] always runs a task, even when
 // fingerprinting or prompts would normally stop it.
 func WithForce(force bool) ExecutorOption {

executor_test.go

@@ -283,6 +283,68 @@ func TestVars(t *testing.T) {
 	)
 }
 
+func TestSecretVars(t *testing.T) {
+	t.Parallel()
+	NewExecutorTest(t,
+		WithName("secret vars are masked in logs"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-secret-masking"),
+	)
+	NewExecutorTest(t,
+		WithName("multiple secrets masked"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-multiple-secrets"),
+	)
+	NewExecutorTest(t,
+		WithName("mixed secret and public vars"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-mixed"),
+	)
+	NewExecutorTest(t,
+		WithName("deferred command with secrets"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-deferred-secret"),
+	)
+	NewExecutorTest(t,
+		WithName("env secret limitation"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-env-secret-limitation"),
+	)
+	NewExecutorTest(t,
+		WithName("secret vars are masked in summary"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+			task.WithSummary(true),
+		),
+		WithTask("test-secret-masking"),
+	)
+	NewExecutorTest(t,
+		WithName("dynamic secret masked in verbose"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+			task.WithVerbose(true),
+		),
+		WithTask("test-dynamic-secret-verbose"),
+	)
+	NewExecutorTest(t,
+		WithName("secret key order independent"),
+		WithExecutorOptions(
+			task.WithDir("testdata/secrets"),
+		),
+		WithTask("test-secret-key-order"),
+	)
+}
+
 func TestRequires(t *testing.T) {
 	t.Parallel()
 	NewExecutorTest(t,

go.mod

@@ -4,11 +4,11 @@ go 1.25.10
 
 require (
 	charm.land/bubbles/v2 v2.1.0
-	charm.land/bubbletea/v2 v2.0.6
-	charm.land/lipgloss/v2 v2.0.3
+	charm.land/bubbletea/v2 v2.0.7
+	charm.land/lipgloss/v2 v2.0.4
 	github.com/Ladicle/tabwriter v1.0.0
 	github.com/Masterminds/semver/v3 v3.5.0
-	github.com/alecthomas/chroma/v2 v2.26.1
+	github.com/alecthomas/chroma/v2 v2.27.0
 	github.com/chainguard-dev/git-urls v1.0.2
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
 	github.com/dominikbraun/graph v0.23.0
@@ -28,8 +28,8 @@ require (
 	github.com/stretchr/testify v1.11.1
 	github.com/zeebo/xxh3 v1.1.0
 	go.yaml.in/yaml/v3 v3.0.4
-	golang.org/x/sync v0.20.0
-	golang.org/x/term v0.43.0
+	golang.org/x/sync v0.21.0
+	golang.org/x/term v0.44.0
 	mvdan.cc/sh/moreinterp v0.0.0-20260120230322-19def062a997
 	mvdan.cc/sh/v3 v3.13.2-0.20260510185049-f5c6e2779117
 )
@@ -69,7 +69,7 @@ require (
 	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/charmbracelet/colorprofile v0.4.3 // indirect
-	github.com/charmbracelet/ultraviolet v0.0.0-20260416155717-489999b90468 // indirect
+	github.com/charmbracelet/ultraviolet v0.0.0-20260525132238-948f4557a654 // indirect
 	github.com/charmbracelet/x/ansi v0.11.7 // indirect
 	github.com/charmbracelet/x/term v0.2.2 // indirect
 	github.com/charmbracelet/x/termios v0.1.1 // indirect
@@ -77,7 +77,7 @@ require (
 	github.com/clipperhouse/displaywidth v0.11.0 // indirect
 	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
 	github.com/cncf/xds/go v0.0.0-20251210132809-ee656c7534f5 // indirect
-	github.com/dlclark/regexp2/v2 v2.1.1 // indirect
+	github.com/dlclark/regexp2/v2 v2.2.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/envoyproxy/go-control-plane/envoy v1.36.0 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.3.0 // indirect
@@ -92,7 +92,7 @@ require (
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-version v1.8.0 // indirect
 	github.com/klauspost/compress v1.18.5 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect
 	github.com/lucasb-eyer/go-colorful v1.4.0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
@@ -121,9 +121,10 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v1.43.0 // indirect
 	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	golang.org/x/crypto v0.51.0 // indirect
+	golang.org/x/exp v0.0.0-20260410095643-746e56fc9e2f // indirect
 	golang.org/x/net v0.55.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
-	golang.org/x/sys v0.45.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
 	golang.org/x/text v0.37.0 // indirect
 	golang.org/x/time v0.15.0 // indirect
 	google.golang.org/api v0.271.0 // indirect

go.sum

@@ -4,8 +4,12 @@ charm.land/bubbles/v2 v2.1.0 h1:YSnNh5cPYlYjPxRrzs5VEn3vwhtEn3jVGRBT3M7/I0g=
 charm.land/bubbles/v2 v2.1.0/go.mod h1:l97h4hym2hvWBVfmJDtrEHHCtkIKeTEb3TTJ4ZOB3wY=
 charm.land/bubbletea/v2 v2.0.6 h1:UHN/91OyuhaOFGSrBXQ/hMZD8IO1Uc4BvHlgHXL2WJo=
 charm.land/bubbletea/v2 v2.0.6/go.mod h1:MH/D8ZLlN3op37vQvijKuU29g3rqTp+aQapURFonF9g=
+charm.land/bubbletea/v2 v2.0.7 h1:7qw2tTAVar7m7klOPBYfTB0mniv/RuexsYwMRNxSeL0=
+charm.land/bubbletea/v2 v2.0.7/go.mod h1:DGW2q8gvzHnOpMpZTORs0aySVHCox5C+2Svk0fci1qs=
 charm.land/lipgloss/v2 v2.0.3 h1:yM2zJ4Cf5Y51b7RHIwioil4ApI/aypFXXVHSwlM6RzU=
 charm.land/lipgloss/v2 v2.0.3/go.mod h1:7myLU9iG/3xluAWzpY/fSxYYHCgoKTie7laxk6ATwXA=
+charm.land/lipgloss/v2 v2.0.4 h1:lcPeVtcp23SNra7lHy8iYE4UC2aIipVQ47sbGyyxR5Q=
+charm.land/lipgloss/v2 v2.0.4/go.mod h1:0653x8epbZSzdDfO/XPS1a/uYPOBeSsCssOpJOqDzik=
 cloud.google.com/go v0.123.0 h1:2NAUJwPR47q+E35uaJeYoNhuNEM9kM8SjgRgdeOJUSE=
 cloud.google.com/go v0.123.0/go.mod h1:xBoMV08QcqUGuPW65Qfm1o9Y4zKZBpGS+7bImXLTAZU=
 cloud.google.com/go/auth v0.18.2 h1:+Nbt5Ev0xEqxlNjd6c+yYUeosQ5TtEUaNcN/3FozlaM=
@@ -42,6 +46,8 @@ github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8v
 github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/chroma/v2 v2.26.1 h1:2X21EdxGZNv5GF9mG5u+uzc02GCFyGxbcBm3Grd9A78=
 github.com/alecthomas/chroma/v2 v2.26.1/go.mod h1:lxhRRa9H4hPmRLOOdYga4zkQIQjq3dtrrdwQeCfu78Y=
+github.com/alecthomas/chroma/v2 v2.27.0 h1:FodwmyOBgJULFYmDqibcp9pvfDLWdtPRh9v/r5BXYZs=
+github.com/alecthomas/chroma/v2 v2.27.0/go.mod h1:NjJ3ciIgrqBNeIkWZ4e46nseoLDslxU1LmfCoL+wcY8=
 github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
 github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
@@ -96,6 +102,8 @@ github.com/charmbracelet/colorprofile v0.4.3 h1:QPa1IWkYI+AOB+fE+mg/5/4HRMZcaXex
 github.com/charmbracelet/colorprofile v0.4.3/go.mod h1:/zT4BhpD5aGFpqQQqw7a+VtHCzu+zrQtt1zhMt9mR4Q=
 github.com/charmbracelet/ultraviolet v0.0.0-20260416155717-489999b90468 h1:Q9fO0y1Zo5KB/5Vu8JZoLGm1N3RzF9bNj3Ao3xoR+Ac=
 github.com/charmbracelet/ultraviolet v0.0.0-20260416155717-489999b90468/go.mod h1:bAAz7dh/FTYfC+oiHavL4mX1tOIBZ0ZwYjSi3qE6ivM=
+github.com/charmbracelet/ultraviolet v0.0.0-20260525132238-948f4557a654 h1:FpSYhY28ucg9ZRr+2wj67FAQ0Ey5yiK0072PmRDJNek=
+github.com/charmbracelet/ultraviolet v0.0.0-20260525132238-948f4557a654/go.mod h1:hFpumms29Smx3LStRfku8vcCTBe1Kq8aCXtHUJa3mjY=
 github.com/charmbracelet/x/ansi v0.11.7 h1:kzv1kJvjg2S3r9KHo8hDdHFQLEqn4RBCb39dAYC84jI=
 github.com/charmbracelet/x/ansi v0.11.7/go.mod h1:9qGpnAVYz+8ACONkZBUWPtL7lulP9No6p1epAihUZwQ=
 github.com/charmbracelet/x/exp/golden v0.0.0-20250806222409-83e3a29d542f h1:pk6gmGpCE7F3FcjaOEKYriCvpmIN4+6OS/RD0vm4uIA=
@@ -120,6 +128,8 @@ github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dlclark/regexp2/v2 v2.1.1 h1:LCUGyd9Wf+r+VVOl8Ny38JTpWJcAsdVnCIuhhtthmKw=
 github.com/dlclark/regexp2/v2 v2.1.1/go.mod h1:avUrQvPaLz2DrFNHJF0taWAFFX2C1GMSSoeiqFjcBmU=
+github.com/dlclark/regexp2/v2 v2.2.1 h1:mf4KkFUj0gJuarK8P+LgiS+Lit7m9N1yAwEfPbee7R0=
+github.com/dlclark/regexp2/v2 v2.2.1/go.mod h1:avUrQvPaLz2DrFNHJF0taWAFFX2C1GMSSoeiqFjcBmU=
 github.com/dominikbraun/graph v0.23.0 h1:TdZB4pPqCLFxYhdyMFb1TBdFxp8XLcJfTTBQucVPgCo=
 github.com/dominikbraun/graph v0.23.0/go.mod h1:yOjYyogZLY1LSG9E33JWZJiq5k83Qy2C6POAuiViluc=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
@@ -181,8 +191,8 @@ github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
 github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
-github.com/klauspost/cpuid/v2 v2.2.10 h1:tBs3QSyvjDyFTq3uoc/9xFpCuOsJQFNPiAhYdw2skhE=
-github.com/klauspost/cpuid/v2 v2.2.10/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
+github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
+github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/klauspost/pgzip v1.2.6 h1:8RXeL5crjEUFnR2/Sn6GJNWtSQ3Dk8pq4CL3jvdDyjU=
 github.com/klauspost/pgzip v1.2.6/go.mod h1:Ch1tH69qFZu15pkjo5kYi6mth2Zzwzt50oCQKQE9RUs=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -274,19 +284,25 @@ go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
 golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
-golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 h1:nDVHiLt8aIbd/VzvPWN6kSOPE7+F/fNFDSXLVYkE/Iw=
-golang.org/x/exp v0.0.0-20250305212735-054e65f0b394/go.mod h1:sIifuuw/Yco/y6yb6+bDNfyeQ/MdPUy/hKEMYQV17cM=
+golang.org/x/exp v0.0.0-20260410095643-746e56fc9e2f h1:W3F4c+6OLc6H2lb//N1q4WpJkhzJCK5J6kUi1NTVXfM=
+golang.org/x/exp v0.0.0-20260410095643-746e56fc9e2f/go.mod h1:J1xhfL/vlindoeF/aINzNzt2Bket5bjo9sdOYzOsU80=
 golang.org/x/net v0.55.0 h1:bcvxaJn3e1U6InsFWt1JUq1aSjnRxLzT2rtD2KfkDF8=
 golang.org/x/net v0.55.0/go.mod h1:L5U2KuzuOe1lY7Z+aWVIKK6qEeJXnXV9yzGA+WCHJww=
 golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs=
 golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q=
 golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
 golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sync v0.21.0 h1:HLII4xRRTtCRkxYp4HNFF0Js/Og6q2i++KXbg0gHCwM=
+golang.org/x/sync v0.21.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
 golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
+golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.43.0 h1:S4RLU2sB31O/NCl+zFN9Aru9A/Cq2aqKpTZJ6B+DwT4=
 golang.org/x/term v0.43.0/go.mod h1:lrhlHNdQJHO+1qVYiHfFKVuVioJIheAc3fBSMFYEIsk=
+golang.org/x/term v0.44.0 h1:0rLvDRCtNj0gZkyIXhCyOb2OAzEhLVqc4B+hrsBhrmc=
+golang.org/x/term v0.44.0/go.mod h1:7ze4MdzUzLXpSAoFP1H0bOI9aXDqveSvatT5vKcFh2Y=
 golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
 golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
 golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=

internal/complete/complete.go

@@ -0,0 +1,30 @@
+// Package complete implements the `task __complete` protocol consumed by the
+// shell completion wrappers. The protocol mirrors cobra v2 so a future
+// migration stays cheap.
+package complete
+
+import "os"
+
+const CommandName = "__complete"
+
+func IsActive() bool {
+	return len(os.Args) >= 2 && os.Args[1] == CommandName
+}
+
+// Directive mirrors cobra's ShellCompDirective bitfield.
+type Directive int
+
+const (
+	DirectiveDefault       Directive = 0
+	DirectiveError         Directive = 1 << 0
+	DirectiveNoSpace       Directive = 1 << 1
+	DirectiveNoFileComp    Directive = 1 << 2
+	DirectiveFilterFileExt Directive = 1 << 3
+	DirectiveFilterDirs    Directive = 1 << 4
+	DirectiveKeepOrder     Directive = 1 << 5
+)
+
+type Suggestion struct {
+	Value       string
+	Description string
+}

internal/complete/complete_test.go

@@ -0,0 +1,279 @@
+package complete_test
+
+import (
+	"bytes"
+	"io"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/spf13/pflag"
+	"github.com/stretchr/testify/require"
+
+	"github.com/go-task/task/v3"
+	"github.com/go-task/task/v3/internal/complete"
+)
+
+func newTestFlagSet() *pflag.FlagSet {
+	fs := pflag.NewFlagSet("test", pflag.ContinueOnError)
+	var b bool
+	var s string
+	fs.BoolVarP(&b, "list-all", "a", false, "Lists all tasks")
+	fs.BoolVarP(&b, "list", "l", false, "Lists tasks with descriptions")
+	fs.BoolVarP(&b, "verbose", "v", false, "Verbose mode")
+	fs.StringVarP(&s, "taskfile", "t", "", "Taskfile path")
+	fs.StringVarP(&s, "dir", "d", "", "Run dir")
+	fs.StringVarP(&s, "output", "o", "", "Output style")
+	fs.StringVar(&s, "sort", "", "Sort order")
+	fs.StringVar(&s, "cacert", "", "CA cert path")
+	return fs
+}
+
+const testTaskfile = `version: '3'
+
+vars:
+  ALLOWED_ENVS:
+    - dev
+    - staging
+    - prod
+
+tasks:
+  deploy:
+    desc: Deploy the application
+    aliases: [dep, ship]
+    requires:
+      vars:
+        - name: ENV
+          enum:
+            - dev
+            - staging
+            - prod
+        - REGION
+    cmds:
+      - 'echo {{.ENV}} {{.REGION}}'
+
+  build:
+    desc: Build it
+    cmds:
+      - 'echo build'
+
+  dynenum:
+    desc: Dynamic enum
+    requires:
+      vars:
+        - name: ENV
+          enum:
+            ref: .ALLOWED_ENVS
+    cmds:
+      - 'echo {{.ENV}}'
+
+  docs:serve:
+    desc: Serve docs locally
+    cmds:
+      - 'echo serving'
+`
+
+func setupExecutor(t *testing.T) *task.Executor {
+	t.Helper()
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "Taskfile.yml"), []byte(testTaskfile), 0o644))
+
+	e := task.NewExecutor(
+		task.WithDir(dir),
+		task.WithStdout(io.Discard),
+		task.WithStderr(io.Discard),
+		task.WithVersionCheck(false),
+	)
+	require.NoError(t, e.Setup())
+	return e
+}
+
+func TestComplete_TaskNames(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{""})
+
+	require.ElementsMatch(t,
+		[]string{"build", "deploy", "dep", "ship", "dynenum", "docs:serve"},
+		values(suggs),
+	)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+	require.Contains(t, descriptions(suggs), "Deploy the application")
+}
+
+func TestComplete_AliasResolvesToTaskVars(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"dep", ""})
+	require.Equal(t, []string{"ENV=dev", "ENV=staging", "ENV=prod", "REGION="}, values(suggs))
+	require.Equal(t, complete.DirectiveNoSpace|complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_StaticEnum(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"deploy", ""})
+
+	require.Equal(t, []string{"ENV=dev", "ENV=staging", "ENV=prod", "REGION="}, values(suggs))
+	require.Equal(t, complete.DirectiveNoSpace|complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_EnumRef(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, _ := complete.Complete(e, newTestFlagSet(), []string{"dynenum", ""})
+	require.Equal(t, []string{"ENV=dev", "ENV=staging", "ENV=prod"}, values(suggs))
+}
+
+func TestComplete_NoRequires(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"build", ""})
+	require.Empty(t, suggs)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_FlagValueNotConfusedWithTaskName(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--dir", "deploy", ""})
+	require.ElementsMatch(t,
+		[]string{"build", "deploy", "dep", "ship", "dynenum", "docs:serve"},
+		values(suggs),
+	)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_NamespacedTaskName(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"docs:serve", ""})
+	require.Empty(t, suggs)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_FlagValueInlineEquals(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--output="})
+	require.Equal(t, []string{"interleaved", "group", "prefixed"}, values(suggs))
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_AfterDash(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"deploy", "--", ""})
+	require.Empty(t, suggs)
+	require.Equal(t, complete.DirectiveDefault, dir)
+}
+
+func TestComplete_FlagNames(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"-"})
+	require.NotEmpty(t, suggs)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+
+	vals := values(suggs)
+	require.Contains(t, vals, "--list-all")
+	require.Contains(t, vals, "--taskfile")
+	require.Contains(t, vals, "-a")
+}
+
+func TestComplete_EnumFlagValue_Output(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--output", ""})
+	require.Equal(t, []string{"interleaved", "group", "prefixed"}, values(suggs))
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestComplete_EnumFlagValue_Sort(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, _ := complete.Complete(e, newTestFlagSet(), []string{"--sort", ""})
+	require.Equal(t, []string{"default", "alphanumeric", "none"}, values(suggs))
+}
+
+func TestComplete_PathFlag_Taskfile(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--taskfile", ""})
+	require.Equal(t, []string{"yml", "yaml"}, values(suggs))
+	require.Equal(t, complete.DirectiveFilterFileExt, dir)
+}
+
+func TestComplete_PathFlag_Dir(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--dir", ""})
+	require.Empty(t, suggs)
+	require.Equal(t, complete.DirectiveFilterDirs, dir)
+}
+
+func TestComplete_PathFlag_Cacert(t *testing.T) {
+	t.Parallel()
+
+	e := setupExecutor(t)
+	suggs, dir := complete.Complete(e, newTestFlagSet(), []string{"--cacert", ""})
+	require.Empty(t, suggs)
+	require.Equal(t, complete.DirectiveDefault, dir)
+}
+
+func TestComplete_NilExecutor(t *testing.T) {
+	t.Parallel()
+
+	suggs, dir := complete.Complete(nil, newTestFlagSet(), []string{"-"})
+	require.NotEmpty(t, suggs)
+	require.Equal(t, complete.DirectiveNoFileComp, dir)
+}
+
+func TestWrite_Format(t *testing.T) {
+	t.Parallel()
+
+	var buf bytes.Buffer
+	complete.Write(&buf, []complete.Suggestion{
+		{Value: "deploy", Description: "Deploy the app"},
+		{Value: "build"},
+	}, complete.DirectiveNoSpace|complete.DirectiveNoFileComp)
+	require.Equal(t, "deploy\tDeploy the app\nbuild\n:6\n", buf.String())
+}
+
+func TestWrite_EmptyWithDirective(t *testing.T) {
+	t.Parallel()
+
+	var buf bytes.Buffer
+	complete.Write(&buf, nil, complete.DirectiveFilterDirs)
+	require.Equal(t, ":16\n", buf.String())
+}
+
+func values(suggs []complete.Suggestion) []string {
+	out := make([]string, 0, len(suggs))
+	for _, s := range suggs {
+		out = append(out, s.Value)
+	}
+	return out
+}
+
+func descriptions(suggs []complete.Suggestion) []string {
+	out := make([]string, 0, len(suggs))
+	for _, s := range suggs {
+		out = append(out, s.Description)
+	}
+	return out
+}

internal/complete/context.go

@@ -0,0 +1,65 @@
+package complete
+
+import (
+	"strings"
+
+	"github.com/spf13/pflag"
+)
+
+type completionContext struct {
+	toComplete string
+	prev       string
+	taskName   string
+	afterDash  bool
+}
+
+// parseContext infers the cursor position from args. fs is needed to skip the
+// word following a value-taking flag, otherwise `task --dir deploy` would
+// mistake "deploy" (the directory) for a task name.
+func parseContext(args []string, knownTasks []string, fs *pflag.FlagSet) completionContext {
+	ctx := completionContext{}
+	if len(args) == 0 {
+		return ctx
+	}
+
+	ctx.toComplete = args[len(args)-1]
+	if len(args) >= 2 {
+		ctx.prev = args[len(args)-2]
+	}
+
+	known := make(map[string]struct{}, len(knownTasks))
+	for _, t := range knownTasks {
+		known[t] = struct{}{}
+	}
+
+	skipNext := false
+	for _, w := range args[:len(args)-1] {
+		if skipNext {
+			skipNext = false
+			continue
+		}
+		if w == "--" {
+			ctx.afterDash = true
+			continue
+		}
+		if ctx.afterDash {
+			continue
+		}
+		if strings.HasPrefix(w, "-") {
+			if !strings.Contains(w, "=") {
+				if f := matchFlagName(fs, w); f != nil && flagTakesValue(f) {
+					skipNext = true
+				}
+			}
+			continue
+		}
+		if strings.Contains(w, "=") {
+			continue
+		}
+		if _, ok := known[w]; ok {
+			ctx.taskName = w
+		}
+	}
+
+	return ctx
+}

internal/complete/engine.go

@@ -0,0 +1,171 @@
+package complete
+
+import (
+	"strings"
+
+	"github.com/spf13/pflag"
+
+	"github.com/go-task/task/v3"
+	"github.com/go-task/task/v3/internal/templater"
+	"github.com/go-task/task/v3/taskfile/ast"
+)
+
+// Complete is the single entry point used by `task __complete`. e may be nil
+// when the Taskfile failed to load; flag completion still works in that case.
+func Complete(e *task.Executor, fs *pflag.FlagSet, args []string) ([]Suggestion, Directive) {
+	knownTasks := taskNames(e)
+	ctx := parseContext(args, knownTasks, fs)
+
+	if ctx.afterDash {
+		return nil, DirectiveDefault
+	}
+
+	if ctx.prev != "" {
+		if flag := matchFlagName(fs, ctx.prev); flag != nil && flagTakesValue(flag) {
+			return completeFlagValue(flag.Name, ctx.toComplete)
+		}
+	}
+
+	if strings.HasPrefix(ctx.toComplete, "-") {
+		if eqIdx := strings.Index(ctx.toComplete, "="); eqIdx != -1 {
+			flagWord := ctx.toComplete[:eqIdx]
+			partial := ctx.toComplete[eqIdx+1:]
+			if f := matchFlagName(fs, flagWord); f != nil && flagTakesValue(f) {
+				return completeFlagValue(f.Name, partial)
+			}
+		}
+		return listFlags(fs), DirectiveNoFileComp
+	}
+
+	if ctx.taskName != "" && e != nil && e.Taskfile != nil {
+		return completeTaskVars(e, ctx.taskName, ctx.toComplete)
+	}
+
+	return completeTaskNames(e), DirectiveNoFileComp
+}
+
+func taskNames(e *task.Executor) []string {
+	if e == nil || e.Taskfile == nil {
+		return nil
+	}
+	var out []string
+	for t := range e.Taskfile.Tasks.Values(nil) {
+		if t.Internal {
+			continue
+		}
+		out = append(out, strings.TrimSuffix(t.Task, ":"))
+		for _, alias := range t.Aliases {
+			out = append(out, strings.TrimSuffix(alias, ":"))
+		}
+	}
+	return out
+}
+
+func completeTaskNames(e *task.Executor) []Suggestion {
+	if e == nil || e.Taskfile == nil {
+		return nil
+	}
+	tasks, err := e.GetTaskList(task.FilterOutInternal)
+	if err != nil {
+		return nil
+	}
+	out := make([]Suggestion, 0, len(tasks))
+	for _, t := range tasks {
+		out = append(out, Suggestion{
+			Value:       strings.TrimSuffix(t.Task, ":"),
+			Description: t.Desc,
+		})
+		for _, alias := range t.Aliases {
+			out = append(out, Suggestion{
+				Value:       strings.TrimSuffix(alias, ":"),
+				Description: t.Desc,
+			})
+		}
+	}
+	return out
+}
+
+func completeFlagValue(flagName, toComplete string) ([]Suggestion, Directive) {
+	if dir, ok := flagDirective[flagName]; ok {
+		switch dir {
+		case DirectiveFilterFileExt:
+			suggs := make([]Suggestion, 0, len(taskfileExtensions))
+			for _, ext := range taskfileExtensions {
+				suggs = append(suggs, Suggestion{Value: ext})
+			}
+			return suggs, DirectiveFilterFileExt
+		case DirectiveFilterDirs:
+			return nil, DirectiveFilterDirs
+		default:
+			return nil, DirectiveDefault
+		}
+	}
+
+	if values, ok := flagEnums[flagName]; ok {
+		out := make([]Suggestion, 0, len(values))
+		for _, v := range values {
+			out = append(out, Suggestion{Value: v})
+		}
+		_ = toComplete
+		return out, DirectiveNoFileComp
+	}
+
+	return nil, DirectiveDefault
+}
+
+func completeTaskVars(e *task.Executor, taskName, toComplete string) ([]Suggestion, Directive) {
+	compiled, err := e.FastCompiledTask(&task.Call{Task: taskName})
+	if err != nil || compiled == nil || compiled.Requires == nil {
+		return nil, DirectiveNoFileComp
+	}
+
+	cache := &templater.Cache{Vars: compiled.Vars}
+	out := make([]Suggestion, 0, 8)
+	for _, v := range compiled.Requires.Vars {
+		if v == nil || v.Name == "" {
+			continue
+		}
+		values := enumValues(v.Enum, cache)
+		if len(values) == 0 {
+			out = append(out, Suggestion{Value: v.Name + "="})
+			continue
+		}
+		for _, val := range values {
+			out = append(out, Suggestion{Value: v.Name + "=" + val})
+		}
+	}
+	_ = toComplete
+	if len(out) == 0 {
+		return nil, DirectiveNoFileComp
+	}
+	return out, DirectiveNoSpace | DirectiveNoFileComp
+}
+
+func enumValues(enum *ast.Enum, cache *templater.Cache) []string {
+	if enum == nil {
+		return nil
+	}
+	if len(enum.Value) > 0 {
+		return enum.Value
+	}
+	if enum.Ref == "" {
+		return nil
+	}
+	resolved := templater.ResolveRef(enum.Ref, cache)
+	if cache.Err() != nil {
+		return nil
+	}
+	arr, ok := resolved.([]any)
+	if !ok {
+		return nil
+	}
+	out := make([]string, 0, len(arr))
+	for _, item := range arr {
+		s, ok := item.(string)
+		if !ok {
+			return nil
+		}
+		out = append(out, s)
+	}
+	return out
+}

internal/complete/flags.go

@@ -0,0 +1,71 @@
+package complete
+
+import (
+	"sort"
+	"strings"
+
+	"github.com/spf13/pflag"
+)
+
+// flagEnums lists allowed values for enum-style flags. Keep in sync with the
+// help strings in internal/flags/flags.go.
+var flagEnums = map[string][]string{
+	"output":     {"interleaved", "group", "prefixed"},
+	"sort":       {"default", "alphanumeric", "none"},
+	"completion": {"bash", "zsh", "fish", "powershell"},
+}
+
+var flagDirective = map[string]Directive{
+	"taskfile":         DirectiveFilterFileExt,
+	"dir":              DirectiveFilterDirs,
+	"remote-cache-dir": DirectiveFilterDirs,
+	"cacert":           DirectiveDefault,
+	"cert":             DirectiveDefault,
+	"cert-key":         DirectiveDefault,
+}
+
+var taskfileExtensions = []string{"yml", "yaml"}
+
+// flagTakesValue is false for boolean switches (NoOptDefVal == "true").
+func flagTakesValue(f *pflag.Flag) bool {
+	return f.NoOptDefVal == ""
+}
+
+// listFlags walks fs at call time so experiment-gated flags appear or
+// disappear based on the active experiments.
+func listFlags(fs *pflag.FlagSet) []Suggestion {
+	if fs == nil {
+		return nil
+	}
+	out := make([]Suggestion, 0, 64)
+	fs.VisitAll(func(f *pflag.Flag) {
+		if f.Hidden || f.Deprecated != "" {
+			return
+		}
+		out = append(out, Suggestion{
+			Value:       "--" + f.Name,
+			Description: f.Usage,
+		})
+		if f.Shorthand != "" {
+			out = append(out, Suggestion{
+				Value:       "-" + f.Shorthand,
+				Description: f.Usage,
+			})
+		}
+	})
+	sort.Slice(out, func(i, j int) bool { return out[i].Value < out[j].Value })
+	return out
+}
+
+func matchFlagName(fs *pflag.FlagSet, word string) *pflag.Flag {
+	if fs == nil {
+		return nil
+	}
+	switch {
+	case strings.HasPrefix(word, "--"):
+		return fs.Lookup(strings.TrimPrefix(word, "--"))
+	case strings.HasPrefix(word, "-") && len(word) == 2:
+		return fs.ShorthandLookup(word[1:])
+	}
+	return nil
+}

internal/complete/output.go

@@ -0,0 +1,28 @@
+package complete
+
+import (
+	"fmt"
+	"io"
+	"strings"
+)
+
+// Write emits the cobra-v2 completion protocol: one `value\tdescription` (or
+// bare `value`) per suggestion, followed by a trailing `:<directive>` line
+// that shell wrappers split off even when there are zero suggestions.
+func Write(w io.Writer, suggs []Suggestion, dir Directive) {
+	for _, s := range suggs {
+		value := sanitize(s.Value)
+		desc := sanitize(s.Description)
+		if desc == "" {
+			fmt.Fprintln(w, value)
+			continue
+		}
+		fmt.Fprintf(w, "%s\t%s\n", value, desc)
+	}
+	fmt.Fprintf(w, ":%d\n", dir)
+}
+
+func sanitize(s string) string {
+	r := strings.NewReplacer("\n", " ", "\r", " ", "\t", " ")
+	return r.Replace(s)
+}

internal/editors/output.go

@@ -13,13 +13,18 @@ type (
 	}
 	// Task describes a single task
 	Task struct {
-		Name     string    `json:"name"`
-		Task     string    `json:"task"`
-		Desc     string    `json:"desc"`
-		Summary  string    `json:"summary"`
-		Aliases  []string  `json:"aliases"`
-		UpToDate *bool     `json:"up_to_date,omitempty"`
-		Location *Location `json:"location"`
+		Name     string        `json:"name"`
+		Task     string        `json:"task"`
+		Desc     string        `json:"desc"`
+		Summary  string        `json:"summary"`
+		Aliases  []string      `json:"aliases"`
+		UpToDate *bool         `json:"up_to_date,omitempty"`
+		Location *Location     `json:"location"`
+		Requires []RequiredVar `json:"requires,omitempty"`
+	}
+	RequiredVar struct {
+		Name string   `json:"name"`
+		Enum []string `json:"enum,omitempty"`
 	}
 	// Location describes a task's location in a taskfile
 	Location struct {
@@ -45,9 +50,28 @@ func NewTask(task *ast.Task) Task {
 			Column:   task.Location.Column,
 			Taskfile: task.Location.Taskfile,
 		},
+		Requires: newRequiredVars(task.Requires),
 	}
 }
 
+func newRequiredVars(requires *ast.Requires) []RequiredVar {
+	if requires == nil || len(requires.Vars) == 0 {
+		return nil
+	}
+	out := make([]RequiredVar, 0, len(requires.Vars))
+	for _, v := range requires.Vars {
+		if v == nil {
+			continue
+		}
+		rv := RequiredVar{Name: v.Name}
+		if v.Enum != nil && len(v.Enum.Value) > 0 {
+			rv.Enum = append([]string{}, v.Enum.Value...)
+		}
+		out = append(out, rv)
+	}
+	return out
+}
+
 func (parent *Namespace) AddNamespace(namespacePath []string, task Task) {
 	if len(namespacePath) == 0 {
 		return

internal/fingerprint/gitignore.go

@@ -0,0 +1,211 @@
+package fingerprint
+
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-task/task/v3/internal/gitignore"
+)
+
+type linesCacheEntry struct {
+	mtime time.Time
+	lines []string
+}
+
+var (
+	gitignoreLinesCache sync.Map // dir -> linesCacheEntry, invalidated by mtime
+	repoRootCache       sync.Map // dir -> repo root (or "" when not in a repo)
+)
+
+// findRepoRoot returns the first ancestor of dir containing a .git entry, or
+// ("", false) when dir is not inside a git repository.
+func findRepoRoot(dir string) (string, bool) {
+	if v, ok := repoRootCache.Load(dir); ok {
+		root := v.(string)
+		return root, root != ""
+	}
+
+	current := dir
+	for {
+		if _, err := os.Stat(filepath.Join(current, ".git")); err == nil {
+			repoRootCache.Store(dir, current)
+			return current, true
+		}
+		parent := filepath.Dir(current)
+		if parent == current {
+			break
+		}
+		current = parent
+	}
+
+	repoRootCache.Store(dir, "")
+	return "", false
+}
+
+// filterGitignored marks entries matching gitignore rules as excluded (false).
+// All .gitignore files from the repo root down to each candidate file's
+// directory feed a single matcher so that precedence and cross-file negations
+// (`!pattern`) resolve correctly.
+func filterGitignored(files map[string]bool, dir string) map[string]bool {
+	if len(files) == 0 {
+		return files
+	}
+
+	absDir, err := filepath.Abs(dir)
+	if err != nil {
+		return files
+	}
+	repoRoot, ok := findRepoRoot(absDir)
+	if !ok {
+		return files
+	}
+
+	// Every directory from the repo root down to each candidate file's dir, so
+	// nested .gitignore files reached by deep globs are included too.
+	dirSet := make(map[string]struct{})
+	for path, included := range files {
+		if !included {
+			continue
+		}
+		absPath, err := filepath.Abs(path)
+		if err != nil {
+			continue
+		}
+		d := filepath.Dir(absPath)
+		if !withinRepo(repoRoot, d) {
+			continue
+		}
+		for {
+			dirSet[d] = struct{}{}
+			if d == repoRoot {
+				break
+			}
+			parent := filepath.Dir(d)
+			if parent == d {
+				break
+			}
+			d = parent
+		}
+	}
+
+	// Shallow dirs first (lower priority): the matcher scans patterns last to
+	// first, so deeper rules win and can negate shallower ones.
+	dirs := make([]string, 0, len(dirSet))
+	for d := range dirSet {
+		dirs = append(dirs, d)
+	}
+	sort.Slice(dirs, func(i, j int) bool {
+		di := strings.Count(dirs[i], string(filepath.Separator))
+		dj := strings.Count(dirs[j], string(filepath.Separator))
+		if di != dj {
+			return di < dj
+		}
+		return dirs[i] < dirs[j]
+	})
+
+	var patterns []gitignore.Pattern
+	for _, d := range dirs {
+		lines := readGitignoreLines(d)
+		if len(lines) == 0 {
+			continue
+		}
+		// domain scopes each pattern to its .gitignore subtree (go-git semantics).
+		var domain []string
+		if rel, err := filepath.Rel(repoRoot, d); err == nil && rel != "." {
+			domain = strings.Split(filepath.ToSlash(rel), "/")
+		}
+		for _, line := range lines {
+			patterns = append(patterns, gitignore.ParsePattern(line, domain))
+		}
+	}
+	if len(patterns) == 0 {
+		return files
+	}
+
+	matcher := gitignore.NewMatcher(patterns)
+	for path, included := range files {
+		if !included {
+			continue
+		}
+		absPath, err := filepath.Abs(path)
+		if err != nil {
+			continue
+		}
+		relPath, err := filepath.Rel(repoRoot, absPath)
+		if err != nil || relPath == ".." || strings.HasPrefix(relPath, ".."+string(filepath.Separator)) {
+			continue
+		}
+		if ignored(matcher, strings.Split(filepath.ToSlash(relPath), "/")) {
+			files[path] = false
+		}
+	}
+
+	return files
+}
+
+// ignored honors Git's rule that a file under an ignored directory cannot be
+// re-included by a deeper negation: if any ancestor directory is ignored, so is
+// the file. Otherwise the file's own verdict applies (isDir=false).
+func ignored(matcher gitignore.Matcher, segments []string) bool {
+	for i := 1; i < len(segments); i++ {
+		if matcher.Match(segments[:i], true) {
+			return true
+		}
+	}
+	return matcher.Match(segments, false)
+}
+
+func withinRepo(repoRoot, p string) bool {
+	rel, err := filepath.Rel(repoRoot, p)
+	if err != nil {
+		return false
+	}
+	return rel == "." || (rel != ".." && !strings.HasPrefix(rel, ".."+string(filepath.Separator)))
+}
+
+// readGitignoreLines returns the .gitignore lines in dir (nil if none), cached
+// per directory and invalidated by mtime so watch mode picks up edits.
+func readGitignoreLines(dir string) []string {
+	path := filepath.Join(dir, ".gitignore")
+	info, err := os.Stat(path)
+	if err != nil {
+		return nil
+	}
+	mtime := info.ModTime()
+
+	if v, ok := gitignoreLinesCache.Load(dir); ok {
+		entry := v.(linesCacheEntry)
+		if entry.mtime.Equal(mtime) {
+			return entry.lines
+		}
+	}
+
+	lines := parseGitignoreLines(path)
+	gitignoreLinesCache.Store(dir, linesCacheEntry{mtime: mtime, lines: lines})
+	return lines
+}
+
+func parseGitignoreLines(path string) []string {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil
+	}
+	defer f.Close()
+
+	var lines []string
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := strings.TrimRight(scanner.Text(), "\r")
+		if line != "" && !strings.HasPrefix(line, "#") {
+			lines = append(lines, line)
+		}
+	}
+	// On a scan error (e.g. an over-long line) keep what was parsed rather than
+	// dropping the whole file.
+	return lines
+}

internal/fingerprint/gitignore_test.go

@@ -0,0 +1,254 @@
+package fingerprint
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/go-task/task/v3/taskfile/ast"
+)
+
+func initGitRepo(t *testing.T, dir string) {
+	t.Helper()
+	require.NoError(t, os.MkdirAll(filepath.Join(dir, ".git"), 0o755))
+}
+
+func TestGlobsWithGitignore(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "included.txt"), []byte("included"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "ignored.log"), []byte("ignored"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "also-included.txt"), []byte("also included"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte("*.log\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	filesWithout, err := Globs(dir, globs, false)
+	require.NoError(t, err)
+
+	filesWith, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+
+	hasLog := false
+	for _, f := range filesWithout {
+		if filepath.Base(f) == "ignored.log" {
+			hasLog = true
+			break
+		}
+	}
+	assert.True(t, hasLog, "ignored.log should be present without gitignore filter")
+
+	hasLog = false
+	for _, f := range filesWith {
+		if filepath.Base(f) == "ignored.log" {
+			hasLog = true
+			break
+		}
+	}
+	assert.False(t, hasLog, "ignored.log should be excluded with gitignore filter")
+
+	txtCount := 0
+	for _, f := range filesWith {
+		if filepath.Ext(f) == ".txt" {
+			txtCount++
+		}
+	}
+	assert.Equal(t, 2, txtCount, "both .txt files should remain")
+}
+
+func TestGlobsWithGitignoreParentDirIgnored(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	buildDir := filepath.Join(dir, "build")
+	require.NoError(t, os.MkdirAll(buildDir, 0o755))
+	require.NoError(t, os.WriteFile(filepath.Join(buildDir, "keep.txt"), []byte("keep"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(buildDir, "other.txt"), []byte("other"), 0o644))
+
+	// Git cannot re-include a file under an ignored directory.
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte("build/\n"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(buildDir, ".gitignore"), []byte("!keep.txt\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./**/*"},
+	}
+
+	files, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+
+	for _, f := range files {
+		base := filepath.Base(f)
+		assert.NotEqual(t, "keep.txt", base, "keep.txt must stay excluded under ignored build/")
+		assert.NotEqual(t, "other.txt", base, "other.txt must stay excluded under ignored build/")
+	}
+}
+
+func TestGlobsWithGitignoreNested(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	subDir := filepath.Join(dir, "sub")
+	require.NoError(t, os.MkdirAll(subDir, 0o755))
+
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "keep.txt"), []byte("keep"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "build.out"), []byte("build"), 0o644))
+
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte("*.log\n"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, ".gitignore"), []byte("*.out\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	files, err := Globs(subDir, globs, true)
+	require.NoError(t, err)
+
+	for _, f := range files {
+		assert.NotEqual(t, "build.out", filepath.Base(f), "build.out should be excluded by nested .gitignore")
+	}
+}
+
+func TestGlobsWithGitignoreCrossFileNegation(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	subDir := filepath.Join(dir, "sub")
+	require.NoError(t, os.MkdirAll(subDir, 0o755))
+
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "debug.log"), []byte("debug"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "other.log"), []byte("other"), 0o644))
+
+	// Root ignores all *.log; a nested .gitignore re-includes debug.log.
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte("*.log\n"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, ".gitignore"), []byte("!debug.log\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	files, err := Globs(subDir, globs, true)
+	require.NoError(t, err)
+
+	hasDebug, hasOther := false, false
+	for _, f := range files {
+		switch filepath.Base(f) {
+		case "debug.log":
+			hasDebug = true
+		case "other.log":
+			hasOther = true
+		}
+	}
+	assert.True(t, hasDebug, "debug.log should be re-included by the nested negation")
+	assert.False(t, hasOther, "other.log should remain excluded by the root *.log rule")
+}
+
+func TestGlobsWithGitignoreDeepGlob(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	subDir := filepath.Join(dir, "sub")
+	require.NoError(t, os.MkdirAll(subDir, 0o755))
+
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "keep.txt"), []byte("keep"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, "gen.out"), []byte("gen"), 0o644))
+
+	require.NoError(t, os.WriteFile(filepath.Join(subDir, ".gitignore"), []byte("*.out\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./**/*"},
+	}
+
+	files, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+
+	for _, f := range files {
+		assert.NotEqual(t, "gen.out", filepath.Base(f), "gen.out should be excluded by the nested .gitignore reached via deep glob")
+	}
+}
+
+func TestGlobsWithGitignoreDoubleDotFile(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	// A ".."-prefixed name must not be skipped by the out-of-tree guard.
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "..keep.log"), []byte("x"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "keep.txt"), []byte("y"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte("*.log\n"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	files, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+
+	for _, f := range files {
+		assert.NotEqual(t, "..keep.log", filepath.Base(f), "..keep.log should be excluded by *.log")
+	}
+}
+
+func TestGlobsWithGitignoreLongLine(t *testing.T) {
+	t.Parallel()
+
+	dir := t.TempDir()
+	initGitRepo(t, dir)
+
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "ignored.log"), []byte("x"), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "keep.txt"), []byte("y"), 0o644))
+
+	// A line over bufio.Scanner's 64KB limit triggers a scan error; patterns
+	// parsed before it must survive.
+	longLine := strings.Repeat("a", 70*1024)
+	content := "*.log\n" + longLine + "\n"
+	require.NoError(t, os.WriteFile(filepath.Join(dir, ".gitignore"), []byte(content), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	files, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+
+	for _, f := range files {
+		assert.NotEqual(t, "ignored.log", filepath.Base(f), "*.log parsed before the long line should still apply")
+	}
+}
+
+func TestGlobsWithGitignoreNoRepo(t *testing.T) {
+	t.Parallel()
+
+	// Cannot use t.TempDir() here because it creates a dir inside the
+	// go-task repo which has a .git parent, defeating the "no repo" test.
+	dir, err := os.MkdirTemp("", "task-gitignore-norepo-*") //nolint:usetesting
+	require.NoError(t, err)
+	t.Cleanup(func() { os.RemoveAll(dir) })
+
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "file.txt"), []byte("content"), 0o644))
+
+	globs := []*ast.Glob{
+		{Glob: "./*"},
+	}
+
+	files, err := Globs(dir, globs, true)
+	require.NoError(t, err)
+	assert.Len(t, files, 1)
+}

internal/fingerprint/glob.go

@@ -10,7 +10,7 @@ import (
 	"github.com/go-task/task/v3/taskfile/ast"
 )
 
-func Globs(dir string, globs []*ast.Glob) ([]string, error) {
+func Globs(dir string, globs []*ast.Glob, useGitignore bool) ([]string, error) {
 	resultMap := make(map[string]bool)
 	for _, g := range globs {
 		matches, err := glob(dir, g.Glob)
@@ -21,6 +21,11 @@ func Globs(dir string, globs []*ast.Glob) ([]string, error) {
 			resultMap[match] = !g.Negate
 		}
 	}
+
+	if useGitignore {
+		resultMap = filterGitignored(resultMap, dir)
+	}
+
 	return collectKeys(resultMap), nil
 }
 

internal/fingerprint/sources_checksum.go

@@ -89,7 +89,7 @@ func (*ChecksumChecker) Kind() string {
 }
 
 func (c *ChecksumChecker) checksum(t *ast.Task) (string, error) {
-	sources, err := Globs(t.Dir, t.Sources)
+	sources, err := Globs(t.Dir, t.Sources, t.ShouldUseGitignore())
 	if err != nil {
 		return "", err
 	}
@@ -119,7 +119,7 @@ func (checker *ChecksumChecker) checksumFilePath(t *ast.Task) string {
 	return filepath.Join(checker.tempDir, "checksum", normalizeFilename(t.Name()))
 }
 
-var checksumFilenameRegexp = regexp.MustCompile("[^A-z0-9]")
+var checksumFilenameRegexp = regexp.MustCompile("[^[:alnum:]]")
 
 // replaces invalid characters on filenames with "-"
 func normalizeFilename(f string) string {

internal/fingerprint/sources_checksum_test.go

@@ -16,6 +16,10 @@ func TestNormalizeFilename(t *testing.T) {
 		{"foo/bar/baz", "foo-bar-baz"},
 		{"foo@bar/baz", "foo-bar-baz"},
 		{"foo1bar2baz3", "foo1bar2baz3"},
+		{"foo\\bar", "foo-bar"},
+		{"foo_bar", "foo-bar"},
+		{"foo[bar]baz", "foo-bar-baz"},
+		{"foo^bar`baz", "foo-bar-baz"},
 	}
 	for _, test := range tests {
 		assert.Equal(t, test.Out, normalizeFilename(test.In))

internal/fingerprint/sources_timestamp.go

@@ -28,7 +28,7 @@ func (checker *TimestampChecker) IsUpToDate(t *ast.Task) (bool, error) {
 		return false, nil
 	}
 
-	sources, err := Globs(t.Dir, t.Sources)
+	sources, err := Globs(t.Dir, t.Sources, t.ShouldUseGitignore())
 	if err != nil {
 		return false, nil
 	}
@@ -54,7 +54,7 @@ func (checker *TimestampChecker) IsUpToDate(t *ast.Task) (bool, error) {
 		}
 	}
 
-	generates, err := Globs(t.Dir, t.Generates)
+	generates, err := Globs(t.Dir, t.Generates, t.ShouldUseGitignore())
 	if err != nil {
 		return false, nil
 	}
@@ -112,7 +112,7 @@ func (checker *TimestampChecker) Kind() string {
 
 // Value implements the Checker Interface
 func (checker *TimestampChecker) Value(t *ast.Task) (any, error) {
-	sources, err := Globs(t.Dir, t.Sources)
+	sources, err := Globs(t.Dir, t.Sources, t.ShouldUseGitignore())
 	if err != nil {
 		return time.Now(), err
 	}

internal/flags/flags.go

@@ -14,6 +14,7 @@ import (
 	"github.com/go-task/task/v3"
 	"github.com/go-task/task/v3/errors"
 	"github.com/go-task/task/v3/experiments"
+	"github.com/go-task/task/v3/internal/complete"
 	"github.com/go-task/task/v3/internal/env"
 	"github.com/go-task/task/v3/internal/sort"
 	"github.com/go-task/task/v3/taskfile/ast"
@@ -87,6 +88,7 @@ var (
 	Cert                string
 	CertKey             string
 	Interactive         bool
+	TempDir             string
 )
 
 func init() {
@@ -143,10 +145,11 @@ func init() {
 	pflag.BoolVarP(&ExitCode, "exit-code", "x", false, "Pass-through the exit code of the task command.")
 	pflag.StringVarP(&Dir, "dir", "d", "", "Sets the directory in which Task will execute and look for a Taskfile.")
 	pflag.StringVarP(&Entrypoint, "taskfile", "t", "", `Choose which Taskfile to run. Defaults to "Taskfile.yml".`)
-	pflag.StringVarP(&Output.Name, "output", "o", "", "Sets output style: [interleaved|group|prefixed].")
-	pflag.StringVar(&Output.Group.Begin, "output-group-begin", "", "Message template to print before a task's grouped output.")
-	pflag.StringVar(&Output.Group.End, "output-group-end", "", "Message template to print after a task's grouped output.")
-	pflag.BoolVar(&Output.Group.ErrorOnly, "output-group-error-only", false, "Swallow output from successful tasks.")
+	pflag.StringVar(&TempDir, "temp-dir", getConfig(config, "TEMP_DIR", func() *string { return config.TempDir }, ""), "Sets the directory used to store Task temporary files, such as checksums. Relative paths are relative to the root Taskfile.")
+	pflag.StringVarP(&Output.Name, "output", "o", getConfig(config, "OUTPUT", func() *string { return nil }, ""), "Sets output style: [interleaved|group|prefixed].")
+	pflag.StringVar(&Output.Group.Begin, "output-group-begin", getConfig(config, "OUTPUT_GROUP_BEGIN", func() *string { return nil }, ""), "Message template to print before a task's grouped output.")
+	pflag.StringVar(&Output.Group.End, "output-group-end", getConfig(config, "OUTPUT_GROUP_END", func() *string { return nil }, ""), "Message template to print after a task's grouped output.")
+	pflag.BoolVar(&Output.Group.ErrorOnly, "output-group-error-only", getConfig(config, "OUTPUT_GROUP_ERROR_ONLY", func() *bool { return nil }, false), "Swallow output from successful tasks.")
 	pflag.BoolVarP(&Color, "color", "c", getConfig(config, "COLOR", func() *bool { return config.Color }, true), "Colored output. Enabled by default. Set flag to false or use NO_COLOR=1 to disable.")
 	pflag.IntVarP(&Concurrency, "concurrency", "C", getConfig(config, "CONCURRENCY", func() *int { return config.Concurrency }, 0), "Limit number of tasks to run concurrently.")
 	pflag.DurationVarP(&Interval, "interval", "I", 0, "Interval to watch for changes.")
@@ -175,6 +178,13 @@ func init() {
 		pflag.StringVar(&Cert, "cert", getConfig(config, "REMOTE_CERT", func() *string { return config.Remote.Cert }, ""), "Path to a client certificate for HTTPS connections.")
 		pflag.StringVar(&CertKey, "cert-key", getConfig(config, "REMOTE_CERT_KEY", func() *string { return config.Remote.CertKey }, ""), "Path to a client certificate key for HTTPS connections.")
 	}
+	// In completion mode the user's `--flag` words must reach the engine
+	// untouched. The BoolVar/StringVar calls above already populated
+	// pflag.CommandLine, which is all the engine needs.
+	if complete.IsActive() {
+		return
+	}
+
 	pflag.Parse()
 
 	// Auto-detect color based on environment when not explicitly configured
@@ -308,6 +318,7 @@ func (o *flagsOption) ApplyToExecutor(e *task.Executor) {
 		task.WithTaskSorter(sorter),
 		task.WithVersionCheck(true),
 		task.WithFailfast(Failfast),
+		task.WithTempDirPath(TempDir),
 	)
 }
 

internal/gitignore/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2018 Sourced Technologies, S.L.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

internal/gitignore/matcher.go

@@ -0,0 +1,34 @@
+// Vendored from go-git: github.com/go-git/go-git/v5 v5.19.1,
+// plumbing/format/gitignore/matcher.go. Licensed under the Apache License 2.0;
+// see the LICENSE file in this directory.
+
+package gitignore
+
+// Matcher defines a global multi-pattern matcher for gitignore patterns
+type Matcher interface {
+	// Match matches patterns in the order of priorities. As soon as an inclusion or
+	// exclusion is found, not further matching is performed.
+	Match(path []string, isDir bool) bool
+}
+
+// NewMatcher constructs a new global matcher. Patterns must be given in the order of
+// increasing priority. That is most generic settings files first, then the content of
+// the repo .gitignore, then content of .gitignore down the path or the repo and then
+// the content command line arguments.
+func NewMatcher(ps []Pattern) Matcher {
+	return &matcher{ps}
+}
+
+type matcher struct {
+	patterns []Pattern
+}
+
+func (m *matcher) Match(path []string, isDir bool) bool {
+	n := len(m.patterns)
+	for i := n - 1; i >= 0; i-- {
+		if match := m.patterns[i].Match(path, isDir); match > NoMatch {
+			return match == Exclude
+		}
+	}
+	return false
+}

internal/gitignore/matcher_test.go

@@ -0,0 +1,23 @@
+// Test cases ported from go-git: github.com/go-git/go-git/v5 v5.19.1,
+// plumbing/format/gitignore/matcher_test.go. Licensed under the Apache
+// License 2.0; see LICENSE.
+
+package gitignore
+
+import "testing"
+
+func TestMatcher_Match(t *testing.T) {
+	t.Parallel()
+
+	m := NewMatcher([]Pattern{
+		ParsePattern("**/middle/v[uo]l?ano", nil),
+		ParsePattern("!volcano", nil),
+	})
+
+	if got := m.Match([]string{"head", "middle", "vulkano"}, false); got != true {
+		t.Errorf("Match(vulkano) = %t, want true", got)
+	}
+	if got := m.Match([]string{"head", "middle", "volcano"}, false); got != false {
+		t.Errorf("Match(volcano) = %t, want false (negated)", got)
+	}
+}

internal/gitignore/pattern.go

@@ -0,0 +1,165 @@
+// Package gitignore implements gitignore pattern matching.
+//
+// This package is vendored from go-git:
+//
+//	github.com/go-git/go-git/v5 v5.19.1, plumbing/format/gitignore
+//
+// Only the pattern parsing and matching logic (pattern.go and matcher.go) is
+// copied; the file-walking helpers (dir.go) are omitted as they pull in
+// go-billy and other go-git internals. The original code is licensed under the
+// Apache License 2.0; see the LICENSE file in this directory.
+package gitignore
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+// MatchResult defines outcomes of a match, no match, exclusion or inclusion.
+type MatchResult int
+
+const (
+	// NoMatch defines the no match outcome of a match check
+	NoMatch MatchResult = iota
+	// Exclude defines an exclusion of a file as a result of a match check
+	Exclude
+	// Include defines an explicit inclusion of a file as a result of a match check
+	Include
+)
+
+const (
+	inclusionPrefix = "!"
+	zeroToManyDirs  = "**"
+	patternDirSep   = "/"
+)
+
+// Pattern defines a single gitignore pattern.
+type Pattern interface {
+	// Match matches the given path to the pattern.
+	Match(path []string, isDir bool) MatchResult
+}
+
+type pattern struct {
+	domain    []string
+	pattern   []string
+	inclusion bool
+	dirOnly   bool
+	isGlob    bool
+}
+
+// ParsePattern parses a gitignore pattern string into the Pattern structure.
+func ParsePattern(p string, domain []string) Pattern {
+	// storing domain, copy it to ensure it isn't changed externally
+	domain = append([]string(nil), domain...)
+	res := pattern{domain: domain}
+
+	if strings.HasPrefix(p, inclusionPrefix) {
+		res.inclusion = true
+		p = p[1:]
+	}
+
+	if !strings.HasSuffix(p, "\\ ") {
+		p = strings.TrimRight(p, " ")
+	}
+
+	if strings.HasSuffix(p, patternDirSep) {
+		res.dirOnly = true
+		p = p[:len(p)-1]
+	}
+
+	if strings.Contains(p, patternDirSep) {
+		res.isGlob = true
+	}
+
+	res.pattern = strings.Split(p, patternDirSep)
+	return &res
+}
+
+func (p *pattern) Match(path []string, isDir bool) MatchResult {
+	if len(path) <= len(p.domain) {
+		return NoMatch
+	}
+	for i, e := range p.domain {
+		if path[i] != e {
+			return NoMatch
+		}
+	}
+
+	path = path[len(p.domain):]
+	if p.isGlob && !p.globMatch(path, isDir) {
+		return NoMatch
+	} else if !p.isGlob && !p.simpleNameMatch(path, isDir) {
+		return NoMatch
+	}
+
+	if p.inclusion {
+		return Include
+	} else {
+		return Exclude
+	}
+}
+
+func (p *pattern) simpleNameMatch(path []string, isDir bool) bool {
+	for i, name := range path {
+		if match, err := filepath.Match(p.pattern[0], name); err != nil {
+			return false
+		} else if !match {
+			continue
+		}
+		if p.dirOnly && !isDir && i == len(path)-1 {
+			return false
+		}
+		return true
+	}
+	return false
+}
+
+func (p *pattern) globMatch(path []string, isDir bool) bool {
+	matched := false
+	canTraverse := false
+	for i, pattern := range p.pattern {
+		if pattern == "" {
+			canTraverse = false
+			continue
+		}
+		if pattern == zeroToManyDirs {
+			if i == len(p.pattern)-1 {
+				break
+			}
+			canTraverse = true
+			continue
+		}
+		if strings.Contains(pattern, zeroToManyDirs) {
+			return false
+		}
+		if len(path) == 0 {
+			return false
+		}
+		if canTraverse {
+			canTraverse = false
+			for len(path) > 0 {
+				e := path[0]
+				path = path[1:]
+				if match, err := filepath.Match(pattern, e); err != nil {
+					return false
+				} else if match {
+					matched = true
+					break
+				} else if len(path) == 0 {
+					// if nothing left then fail
+					matched = false
+				}
+			}
+		} else {
+			if match, err := filepath.Match(pattern, path[0]); err != nil || !match {
+				return false
+			}
+			matched = true
+			path = path[1:]
+		}
+	}
+	if matched && p.dirOnly && !isDir && len(path) == 0 {
+		matched = false
+	}
+	return matched
+}

internal/gitignore/pattern_test.go

@@ -0,0 +1,80 @@
+// Test cases ported from go-git: github.com/go-git/go-git/v5 v5.19.1,
+// plumbing/format/gitignore/pattern_test.go (originally written against
+// gopkg.in/check.v1; rewritten here as table-driven stdlib tests to avoid an
+// extra test dependency). Licensed under the Apache License 2.0; see LICENSE.
+
+package gitignore
+
+import "testing"
+
+func TestParsePattern_Match(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name    string
+		pattern string
+		domain  []string
+		path    []string
+		isDir   bool
+		want    MatchResult
+	}{
+		{"inclusion", "!vul?ano", nil, []string{"value", "vulkano", "tail"}, false, Include},
+		{"domainLonger_mismatch", "value", []string{"head", "middle", "tail"}, []string{"head", "middle"}, false, NoMatch},
+		{"domainSameLength_mismatch", "value", []string{"head", "middle", "tail"}, []string{"head", "middle", "tail"}, false, NoMatch},
+		{"domainMismatch_mismatch", "value", []string{"head", "middle", "tail"}, []string{"head", "middle", "_tail_", "value"}, false, NoMatch},
+		{"withDomain", "middle/", []string{"value", "volcano"}, []string{"value", "volcano", "middle", "tail"}, false, Exclude},
+		{"onlyMatchInDomain_mismatch", "volcano/", []string{"value", "volcano"}, []string{"value", "volcano", "tail"}, true, NoMatch},
+		{"atStart", "value", nil, []string{"value", "tail"}, false, Exclude},
+		{"inTheMiddle", "value", nil, []string{"head", "value", "tail"}, false, Exclude},
+		{"atEnd", "value", nil, []string{"head", "value"}, false, Exclude},
+		{"atStart_dirWanted", "value/", nil, []string{"value", "tail"}, false, Exclude},
+		{"inTheMiddle_dirWanted", "value/", nil, []string{"head", "value", "tail"}, false, Exclude},
+		{"atEnd_dirWanted", "value/", nil, []string{"head", "value"}, true, Exclude},
+		{"atEnd_dirWanted_notADir_mismatch", "value/", nil, []string{"head", "value"}, false, NoMatch},
+		{"mismatch", "value", nil, []string{"head", "val", "tail"}, false, NoMatch},
+		{"valueLonger_mismatch", "val", nil, []string{"head", "value", "tail"}, false, NoMatch},
+		{"withAsterisk", "v*o", nil, []string{"value", "vulkano", "tail"}, false, Exclude},
+		{"withQuestionMark", "vul?ano", nil, []string{"value", "vulkano", "tail"}, false, Exclude},
+		{"magicChars", "v[ou]l[kc]ano", nil, []string{"value", "volcano"}, false, Exclude},
+		{"wrongPattern_mismatch", "v[ou]l[", nil, []string{"value", "vol["}, false, NoMatch},
+		{"glob_fromRootWithSlash", "/value/vul?ano", nil, []string{"value", "vulkano", "tail"}, false, Exclude},
+		{"glob_withDomain", "middle/tail/", []string{"value", "volcano"}, []string{"value", "volcano", "middle", "tail"}, true, Exclude},
+		{"glob_onlyMatchInDomain_mismatch", "volcano/tail", []string{"value", "volcano"}, []string{"value", "volcano", "tail"}, false, NoMatch},
+		{"glob_fromRootWithoutSlash", "value/vul?ano", nil, []string{"value", "vulkano", "tail"}, false, Exclude},
+		{"glob_fromRoot_mismatch", "value/vulkano", nil, []string{"value", "volcano"}, false, NoMatch},
+		{"glob_fromRoot_tooShort_mismatch", "value/vul?ano", nil, []string{"value"}, false, NoMatch},
+		{"glob_fromRoot_notAtRoot_mismatch", "/value/volcano", nil, []string{"value", "value", "volcano"}, false, NoMatch},
+		{"glob_leadingAsterisks_atStart", "**/*lue/vol?ano", nil, []string{"value", "volcano", "tail"}, false, Exclude},
+		{"glob_leadingAsterisks_notAtStart", "**/*lue/vol?ano", nil, []string{"head", "value", "volcano", "tail"}, false, Exclude},
+		{"glob_leadingAsterisks_mismatch", "**/*lue/vol?ano", nil, []string{"head", "value", "Volcano", "tail"}, false, NoMatch},
+		{"glob_leadingAsterisks_isDir", "**/*lue/vol?ano/", nil, []string{"head", "value", "volcano", "tail"}, false, Exclude},
+		{"glob_leadingAsterisks_isDirAtEnd", "**/*lue/vol?ano/", nil, []string{"head", "value", "volcano"}, true, Exclude},
+		{"glob_leadingAsterisks_isDir_mismatch", "**/*lue/vol?ano/", nil, []string{"head", "value", "Colcano"}, true, NoMatch},
+		{"glob_leadingAsterisks_isDirNoDirAtEnd_mismatch", "**/*lue/vol?ano/", nil, []string{"head", "value", "volcano"}, false, NoMatch},
+		{"glob_tailingAsterisks", "/*lue/vol?ano/**", nil, []string{"value", "volcano", "tail", "moretail"}, false, Exclude},
+		{"glob_tailingAsterisks_exactMatch", "/*lue/vol?ano/**", nil, []string{"value", "volcano"}, false, Exclude},
+		{"glob_middleAsterisks_emptyMatch", "/*lue/**/vol?ano", nil, []string{"value", "volcano"}, false, Exclude},
+		{"glob_middleAsterisks_oneMatch", "/*lue/**/vol?ano", nil, []string{"value", "middle", "volcano"}, false, Exclude},
+		{"glob_middleAsterisks_multiMatch", "/*lue/**/vol?ano", nil, []string{"value", "middle1", "middle2", "volcano"}, false, Exclude},
+		{"glob_middleAsterisks_isDir_trailing", "/*lue/**/vol?ano/", nil, []string{"value", "middle1", "middle2", "volcano"}, true, Exclude},
+		{"glob_middleAsterisks_isDir_trailing_mismatch", "/*lue/**/vol?ano/", nil, []string{"value", "middle1", "middle2", "volcano"}, false, NoMatch},
+		{"glob_middleAsterisks_isDir", "/*lue/**/vol?ano/", nil, []string{"value", "middle1", "middle2", "volcano", "tail"}, false, Exclude},
+		{"glob_wrongDoubleAsterisk_mismatch", "/*lue/**foo/vol?ano", nil, []string{"value", "foo", "volcano", "tail"}, false, NoMatch},
+		{"glob_magicChars", "**/head/v[ou]l[kc]ano", nil, []string{"value", "head", "volcano"}, false, Exclude},
+		{"glob_wrongPattern_noTraversal_mismatch", "**/head/v[ou]l[", nil, []string{"value", "head", "vol["}, false, NoMatch},
+		{"glob_wrongPattern_onTraversal_mismatch", "/value/**/v[ou]l[", nil, []string{"value", "head", "vol["}, false, NoMatch},
+		{"glob_issue_923", "**/android/**/GeneratedPluginRegistrant.java", nil, []string{"packages", "flutter_tools", "lib", "src", "android", "gradle.dart"}, false, NoMatch},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			p := ParsePattern(tt.pattern, tt.domain)
+			if got := p.Match(tt.path, tt.isDir); got != tt.want {
+				t.Errorf("ParsePattern(%q, %v).Match(%v, %t) = %v, want %v",
+					tt.pattern, tt.domain, tt.path, tt.isDir, got, tt.want)
+			}
+		})
+	}
+}

internal/summary/summary.go

@@ -117,7 +117,12 @@ func printTaskCommands(l *logger.Logger, t *ast.Task) {
 		isCommand := c.Cmd != ""
 		l.Outf(logger.Default, " - ")
 		if isCommand {
-			l.Outf(logger.Yellow, "%s\n", c.Cmd)
+			// Use the masked command so secret values are not leaked in summaries
+			logCmd := c.LogCmd
+			if logCmd == "" {
+				logCmd = c.Cmd
+			}
+			l.Outf(logger.Yellow, "%s\n", logCmd)
 		} else {
 			l.Outf(logger.Green, "Task: %s\n", c.Task)
 		}
@@ -196,6 +201,11 @@ func printTaskEnv(l *logger.Logger, t *ast.Task) {
 // formatVarValue formats a variable value based on its type.
 // Handles static values, shell commands (sh:), references (ref:), and maps.
 func formatVarValue(v ast.Var) string {
+	// Never expose secret variables in the summary, whatever their type
+	if v.Secret {
+		return "*****"
+	}
+
 	// Shell command - check this first before Value
 	// because dynamic vars may have both Sh and an empty Value
 	if v.Sh != nil {

internal/templater/secrets.go

@@ -0,0 +1,61 @@
+package templater
+
+import (
+	"github.com/go-task/task/v3/taskfile/ast"
+)
+
+// MaskSecrets replaces template placeholders with their values, masking secrets.
+// This function uses the Go templater to resolve all variables ({{.VAR}}) while
+// masking secret ones as "*****".
+func MaskSecrets(cmdTemplate string, vars *ast.Vars) string {
+	return MaskSecretsWithExtra(cmdTemplate, vars, nil)
+}
+
+// MaskSecretsWithExtra is like MaskSecrets but also resolves extra variables (e.g., loop vars).
+func MaskSecretsWithExtra(cmdTemplate string, vars *ast.Vars, extra map[string]any) string {
+	if vars == nil {
+		vars = ast.NewVars()
+	}
+
+	// Fast path: if there are no secrets to mask, resolve the template directly
+	// without the extra DeepCopy + masking pass.
+	if !hasSecrets(vars) {
+		cache := &Cache{Vars: vars}
+		result := ReplaceWithExtra(cmdTemplate, cache, extra)
+		if cache.Err() != nil {
+			return cmdTemplate
+		}
+		return result
+	}
+
+	// Create a copy with secret values masked, leaving the originals untouched.
+	maskedVars := vars.DeepCopy()
+	for name, v := range maskedVars.All() {
+		if v.Secret {
+			maskedVars.Set(name, ast.Var{
+				Value:  "*****",
+				Secret: true,
+			})
+		}
+	}
+
+	cache := &Cache{Vars: maskedVars}
+	result := ReplaceWithExtra(cmdTemplate, cache, extra)
+
+	// If there was an error, return the original template
+	if cache.Err() != nil {
+		return cmdTemplate
+	}
+
+	return result
+}
+
+// hasSecrets reports whether any variable is marked as secret.
+func hasSecrets(vars *ast.Vars) bool {
+	for _, v := range vars.All() {
+		if v.Secret {
+			return true
+		}
+	}
+	return false
+}

internal/templater/templater.go

@@ -132,14 +132,15 @@ func ReplaceVar(v ast.Var, cache *Cache) ast.Var {
 
 func ReplaceVarWithExtra(v ast.Var, cache *Cache, extra map[string]any) ast.Var {
 	if v.Ref != "" {
-		return ast.Var{Value: ResolveRef(v.Ref, cache)}
+		return ast.Var{Value: ResolveRef(v.Ref, cache), Secret: v.Secret}
 	}
 	return ast.Var{
-		Value: ReplaceWithExtra(v.Value, cache, extra),
-		Sh:    ReplaceWithExtra(v.Sh, cache, extra),
-		Live:  v.Live,
-		Ref:   v.Ref,
-		Dir:   v.Dir,
+		Value:  ReplaceWithExtra(v.Value, cache, extra),
+		Sh:     ReplaceWithExtra(v.Sh, cache, extra),
+		Live:   v.Live,
+		Ref:    v.Ref,
+		Dir:    v.Dir,
+		Secret: v.Secret,
 	}
 }
 

mise.toml

@@ -1,12 +1,12 @@
 [tools]
 # Runtimes
-go = "1.25.10"
+go = "1.26.4"
 node = "24"
-pnpm = "11.5.0"
+pnpm = "11.8.0"
 
 # Dev tools
 golangci-lint = "2.12.2"
-mockery = "3.2.2"
+mockery = "3.7.1"
 gotestsum = "latest"
 goreleaser = "2"
 "go:golang.org/x/exp/cmd/gorelease" = "latest"

setup.go

@@ -1,6 +1,7 @@
 package task
 
 import (
+	"cmp"
 	"context"
 	"fmt"
 	"os"
@@ -13,7 +14,6 @@ import (
 	"github.com/sajari/fuzzy"
 
 	"github.com/go-task/task/v3/errors"
-	"github.com/go-task/task/v3/internal/env"
 	"github.com/go-task/task/v3/internal/execext"
 	"github.com/go-task/task/v3/internal/filepathext"
 	"github.com/go-task/task/v3/internal/logger"
@@ -133,13 +133,9 @@ func (e *Executor) setupTempDir() error {
 		return nil
 	}
 
-	tempDir := env.GetTaskEnv("TEMP_DIR")
-	if tempDir == "" {
-		e.TempDir = TempDir{
-			Remote:      filepathext.SmartJoin(e.Dir, ".task"),
-			Fingerprint: filepathext.SmartJoin(e.Dir, ".task"),
-		}
-	} else if filepath.IsAbs(tempDir) || strings.HasPrefix(tempDir, "~") {
+	// e.TempDirPath carries the resolved CLI precedence (flag > TASK_TEMP_DIR > taskrc).
+	tempDir := cmp.Or(e.TempDirPath, ".task")
+	if filepath.IsAbs(tempDir) || strings.HasPrefix(tempDir, "~") {
 		tempDir, err := execext.ExpandLiteral(tempDir)
 		if err != nil {
 			return err

task.go

@@ -349,6 +349,8 @@ func (e *Executor) runDeferred(t *ast.Task, call *Call, i int, vars *ast.Vars, d
 		extra["EXIT_CODE"] = fmt.Sprintf("%d", *deferredExitCode)
 	}
 
+	// Resolve template with secrets masked for logging
+	cmd.LogCmd = templater.MaskSecretsWithExtra(cmd.Cmd, vars, extra)
 	cmd.Cmd = templater.ReplaceWithExtra(cmd.Cmd, cache, extra)
 	cmd.Task = templater.ReplaceWithExtra(cmd.Task, cache, extra)
 	cmd.If = templater.ReplaceWithExtra(cmd.If, cache, extra)
@@ -388,12 +390,12 @@ func (e *Executor) runCommand(ctx context.Context, t *ast.Task, call *Call, i in
 		return err
 	case cmd.Cmd != "":
 		if !shouldRunOnCurrentPlatform(cmd.Platforms) {
-			e.Logger.VerboseOutf(logger.Yellow, "task: [%s] %s not for current platform - ignored\n", t.Name(), cmd.Cmd)
+			e.Logger.VerboseOutf(logger.Yellow, "task: [%s] %s not for current platform - ignored\n", t.Name(), cmd.LogCmd)
 			return nil
 		}
 
 		if e.Verbose || (!call.Silent && !cmd.Silent && !t.IsSilent() && !e.Taskfile.Silent && !e.Silent) {
-			e.Logger.Errf(logger.Green, "task: [%s] %s\n", t.Name(), cmd.Cmd)
+			e.Logger.Errf(logger.Green, "task: [%s] %s\n", t.Name(), cmd.LogCmd)
 		}
 
 		if e.Dry {

task_test.go

@@ -653,6 +653,164 @@ func TestStatusChecksumMissingGenerated(t *testing.T) { // nolint:paralleltest /
 	require.NoError(t, err, "generated.txt should be recreated after third run")
 }
 
+func writeFile(t *testing.T, dir, name, content string) {
+	t.Helper()
+	require.NoError(t, os.WriteFile(filepathext.SmartJoin(dir, name), []byte(content), 0o644))
+}
+
+// gitignoreStep writes a set of files then runs the task once, capturing its
+// output as a golden fixture named run.
+type gitignoreStep struct {
+	write map[string]string
+	run   string
+}
+
+// gitignoreSeq drives a checksum task through a sequence of runs against a
+// fixture dir. create seeds runtime files (removed on cleanup); restore resets
+// tracked files to their committed content on cleanup; artifacts are
+// task-produced files to delete on cleanup.
+type gitignoreSeq struct {
+	dir       string
+	task      string
+	create    map[string]string
+	restore   map[string]string
+	artifacts []string
+	steps     []gitignoreStep
+}
+
+func (s gitignoreSeq) run(t *testing.T) {
+	t.Helper()
+	cleanup := func() {
+		_ = os.RemoveAll(filepathext.SmartJoin(s.dir, ".task"))
+		for name := range s.create {
+			_ = os.Remove(filepathext.SmartJoin(s.dir, name))
+		}
+		for _, name := range s.artifacts {
+			_ = os.Remove(filepathext.SmartJoin(s.dir, name))
+		}
+		for name, content := range s.restore {
+			writeFile(t, s.dir, name, content)
+		}
+	}
+	cleanup()
+	t.Cleanup(cleanup)
+	for name, content := range s.create {
+		writeFile(t, s.dir, name, content)
+	}
+	for _, step := range s.steps {
+		for name, content := range step.write {
+			writeFile(t, s.dir, name, content)
+		}
+		NewExecutorTest(t,
+			WithName(step.run),
+			WithExecutorOptions(task.WithDir(s.dir)),
+			WithTask(s.task),
+		)
+	}
+}
+
+func TestGitignoreChecksum(t *testing.T) { //nolint:paralleltest // shares testdata/gitignore and mutates fixture files
+	gitignoreSeq{
+		dir:       "testdata/gitignore",
+		task:      "build",
+		create:    map[string]string{"ignored.txt": "ignored\n"},
+		restore:   map[string]string{"source.txt": "source content\n"},
+		artifacts: []string{"generated.txt"},
+		steps: []gitignoreStep{
+			{run: "first run"},
+			{run: "up to date"},
+			{run: "ignored file modified", write: map[string]string{"ignored.txt": "ignored modified\n"}},
+			{run: "source file modified", write: map[string]string{"source.txt": "source modified\n"}},
+		},
+	}.run(t)
+}
+
+// TestGitignoreNegation checks that a `!pattern` in a nested .gitignore
+// re-includes a file excluded by a parent .gitignore.
+func TestGitignoreNegation(t *testing.T) { //nolint:paralleltest // mutates fixture files
+	gitignoreSeq{
+		dir:    "testdata/gitignore_negation",
+		task:   "build",
+		create: map[string]string{"sub/debug.log": "debug\n", "sub/other.log": "other\n"},
+		steps: []gitignoreStep{
+			{run: "first run"},
+			{run: "up to date"},
+			{run: "ignored file modified", write: map[string]string{"sub/other.log": "other modified\n"}},
+			{run: "reincluded file modified", write: map[string]string{"sub/debug.log": "debug modified\n"}},
+		},
+	}.run(t)
+}
+
+// TestGitignoreNested checks that a .gitignore in a subdirectory below the task
+// dir is honored when its files are reached by a deep glob.
+func TestGitignoreNested(t *testing.T) { //nolint:paralleltest // mutates fixture files
+	gitignoreSeq{
+		dir:     "testdata/gitignore_nested",
+		task:    "build",
+		create:  map[string]string{"sub/secret.dat": "secret\n"},
+		restore: map[string]string{"sub/keep.txt": "keep\n"},
+		steps: []gitignoreStep{
+			{run: "first run"},
+			{run: "up to date"},
+			{run: "ignored file modified", write: map[string]string{"sub/secret.dat": "secret modified\n"}},
+			{run: "source file modified", write: map[string]string{"sub/keep.txt": "keep modified\n"}},
+		},
+	}.run(t)
+}
+
+// TestGitignoreIncluded checks that a top-level use_gitignore in an included
+// Taskfile is propagated onto its tasks during merge.
+func TestGitignoreIncluded(t *testing.T) { //nolint:paralleltest // mutates fixture files
+	gitignoreSeq{
+		dir:    "testdata/gitignore_included",
+		task:   "included:build",
+		create: map[string]string{"ignored.txt": "ignored\n"},
+		steps: []gitignoreStep{
+			{run: "first run"},
+			{run: "up to date"},
+			{run: "ignored file modified", write: map[string]string{"ignored.txt": "ignored modified\n"}},
+		},
+	}.run(t)
+}
+
+// TestGitignoreIncludedOverride checks that an explicit use_gitignore: false in
+// an included Taskfile is preserved even when the root Taskfile sets it to true.
+func TestGitignoreIncludedOverride(t *testing.T) { //nolint:paralleltest // mutates fixture files
+	gitignoreSeq{
+		dir:    "testdata/gitignore_included_override",
+		task:   "included:build",
+		create: map[string]string{"ignored.txt": "ignored\n"},
+		steps: []gitignoreStep{
+			{run: "first run"},
+			{run: "up to date"},
+			{run: "ignored file modified", write: map[string]string{"ignored.txt": "ignored modified\n"}},
+		},
+	}.run(t)
+}
+
+func TestGitignoreTaskListFallback(t *testing.T) { //nolint:paralleltest // shares testdata/gitignore with TestGitignoreChecksum
+	const dir = "testdata/gitignore"
+
+	var buff bytes.Buffer
+	e := task.NewExecutor(
+		task.WithDir(dir),
+		task.WithStdout(&buff),
+		task.WithStderr(&buff),
+	)
+	require.NoError(t, e.Setup())
+
+	listed, err := e.CompiledTaskForTaskList(&task.Call{Task: "build"})
+	require.NoError(t, err)
+	assert.True(t, listed.ShouldUseGitignore(),
+		"task list should reflect the global use_gitignore fallback")
+
+	// "build-no-use_gitignore" explicitly disables it.
+	listedOff, err := e.CompiledTaskForTaskList(&task.Call{Task: "build-no-use_gitignore"})
+	require.NoError(t, err)
+	assert.False(t, listedOff.ShouldUseGitignore(),
+		"explicit use_gitignore: false must be preserved in the list path")
+}
+
 func TestStatusVariables(t *testing.T) {
 	t.Parallel()
 

taskfile/ast/cmd.go

@@ -9,7 +9,8 @@ import (
 
 // Cmd is a task command
 type Cmd struct {
-	Cmd         string
+	Cmd         string // Resolved command (used for execution and fingerprinting)
+	LogCmd      string // Command with secrets masked (used for logging)
 	Task        string
 	For         *For
 	If          string
@@ -28,6 +29,7 @@ func (c *Cmd) DeepCopy() *Cmd {
 	}
 	return &Cmd{
 		Cmd:         c.Cmd,
+		LogCmd:      c.LogCmd,
 		Task:        c.Task,
 		For:         c.For.DeepCopy(),
 		If:          c.If,

taskfile/ast/matrix.go

@@ -93,6 +93,21 @@ func (matrix *Matrix) DeepCopy() *Matrix {
 	}
 }
 
+// DeepCopy returns a copy of the MatrixRow. Without this, deepcopy.OrderedMap
+// falls back to copying the *MatrixRow pointer as-is, so every "copy" of a
+// Matrix would still share the same underlying rows - see #2890, where
+// concurrent invocations of a task with a `ref:` matrix row raced on
+// resolveMatrixRefs mutating that shared row.
+func (row *MatrixRow) DeepCopy() *MatrixRow {
+	if row == nil {
+		return nil
+	}
+	return &MatrixRow{
+		Ref:   row.Ref,
+		Value: deepcopy.Slice(row.Value),
+	}
+}
+
 func (matrix *Matrix) UnmarshalYAML(node *yaml.Node) error {
 	switch node.Kind {
 	case yaml.MappingNode:

taskfile/ast/task.go

@@ -38,6 +38,7 @@ type Task struct {
 	Method        string
 	Prefix        string `hash:"ignore"`
 	IgnoreError   bool
+	UseGitignore  *bool
 	Run           string
 	Platforms     []*Platform
 	If            string
@@ -75,6 +76,12 @@ func (t *Task) IsSilent() bool {
 	return t.Silent != nil && *t.Silent
 }
 
+// ShouldUseGitignore returns true if gitignore filtering is enabled for the task.
+// Returns false if UseGitignore is nil or set to false.
+func (t *Task) ShouldUseGitignore() bool {
+	return t.UseGitignore != nil && *t.UseGitignore
+}
+
 // WildcardMatch will check if the given string matches the name of the Task and returns any wildcard values.
 func (t *Task) WildcardMatch(name string) (bool, []string) {
 	names := append([]string{t.Task}, t.Aliases...)
@@ -149,7 +156,8 @@ func (t *Task) UnmarshalYAML(node *yaml.Node) error {
 			Internal      bool
 			Method        string
 			Prefix        string
-			IgnoreError   bool `yaml:"ignore_error"`
+			IgnoreError   bool  `yaml:"ignore_error"`
+			UseGitignore  *bool `yaml:"use_gitignore,omitempty"`
 			Run           string
 			Platforms     []*Platform
 			If            string
@@ -190,6 +198,7 @@ func (t *Task) UnmarshalYAML(node *yaml.Node) error {
 		t.Method = task.Method
 		t.Prefix = task.Prefix
 		t.IgnoreError = task.IgnoreError
+		t.UseGitignore = deepcopy.Scalar(task.UseGitignore)
 		t.Run = task.Run
 		t.Platforms = task.Platforms
 		t.If = task.If
@@ -233,6 +242,7 @@ func (t *Task) DeepCopy() *Task {
 		Method:               t.Method,
 		Prefix:               t.Prefix,
 		IgnoreError:          t.IgnoreError,
+		UseGitignore:         deepcopy.Scalar(t.UseGitignore),
 		Run:                  t.Run,
 		IncludeVars:          t.IncludeVars.DeepCopy(),
 		IncludedTaskfileVars: t.IncludedTaskfileVars.DeepCopy(),

taskfile/ast/taskfile.go

@@ -20,20 +20,21 @@ var ErrIncludedTaskfilesCantHaveDotenvs = errors.New("task: Included Taskfiles c
 
 // Taskfile is the abstract syntax tree for a Taskfile
 type Taskfile struct {
-	Location string
-	Version  *semver.Version
-	Output   Output
-	Method   string
-	Includes *Includes
-	Set      []string
-	Shopt    []string
-	Vars     *Vars
-	Env      *Vars
-	Tasks    *Tasks
-	Silent   bool
-	Dotenv   []string
-	Run      string
-	Interval time.Duration
+	Location     string
+	Version      *semver.Version
+	Output       Output
+	Method       string
+	Includes     *Includes
+	Set          []string
+	Shopt        []string
+	Vars         *Vars
+	Env          *Vars
+	Tasks        *Tasks
+	Silent       bool
+	Dotenv       []string
+	Run          string
+	Interval     time.Duration
+	UseGitignore *bool
 }
 
 // Merge merges the second Taskfile into the first
@@ -67,6 +68,14 @@ func (t1 *Taskfile) Merge(t2 *Taskfile, include *Include) error {
 			}
 		}
 	}
+	if t2.UseGitignore != nil {
+		for _, t := range t2.Tasks.All(nil) {
+			if t.UseGitignore == nil {
+				v := *t2.UseGitignore
+				t.UseGitignore = &v
+			}
+		}
+	}
 	t1.Vars.Merge(t2.Vars, include)
 	t1.Env.Merge(t2.Env, include)
 	return t1.Tasks.Merge(t2.Tasks, include, t1.Vars)
@@ -76,19 +85,20 @@ func (tf *Taskfile) UnmarshalYAML(node *yaml.Node) error {
 	switch node.Kind {
 	case yaml.MappingNode:
 		var taskfile struct {
-			Version  *semver.Version
-			Output   Output
-			Method   string
-			Includes *Includes
-			Set      []string
-			Shopt    []string
-			Vars     *Vars
-			Env      *Vars
-			Tasks    *Tasks
-			Silent   bool
-			Dotenv   []string
-			Run      string
-			Interval time.Duration
+			Version      *semver.Version
+			Output       Output
+			Method       string
+			Includes     *Includes
+			Set          []string
+			Shopt        []string
+			Vars         *Vars
+			Env          *Vars
+			Tasks        *Tasks
+			Silent       bool
+			Dotenv       []string
+			Run          string
+			Interval     time.Duration
+			UseGitignore *bool `yaml:"use_gitignore"`
 		}
 		if err := node.Decode(&taskfile); err != nil {
 			return errors.NewTaskfileDecodeError(err, node)
@@ -106,6 +116,7 @@ func (tf *Taskfile) UnmarshalYAML(node *yaml.Node) error {
 		tf.Dotenv = taskfile.Dotenv
 		tf.Run = taskfile.Run
 		tf.Interval = taskfile.Interval
+		tf.UseGitignore = taskfile.UseGitignore
 		if tf.Includes == nil {
 			tf.Includes = NewIncludes()
 		}

taskfile/ast/var.go

@@ -8,37 +8,54 @@ import (
 
 // Var represents either a static or dynamic variable.
 type Var struct {
-	Value any
-	Live  any
-	Sh    *string
-	Ref   string
-	Dir   string
+	Value  any
+	Live   any
+	Sh     *string
+	Ref    string
+	Dir    string
+	Secret bool
 }
 
 func (v *Var) UnmarshalYAML(node *yaml.Node) error {
 	switch node.Kind {
 	case yaml.MappingNode:
-		key := "<none>"
-		if len(node.Content) > 0 {
-			key = node.Content[0].Value
+		var m struct {
+			Sh     *string
+			Ref    string
+			Map    any
+			Value  any
+			Secret bool
 		}
-		switch key {
-		case "sh", "ref", "map":
-			var m struct {
-				Sh  *string
-				Ref string
-				Map any
+		if err := node.Decode(&m); err != nil {
+			return errors.NewTaskfileDecodeError(err, node)
+		}
+		// Validate the keys regardless of their order: every key must be known
+		// and at least one type-defining key must be present. "secret" is a
+		// modifier, not a type, so it can appear in any position.
+		hasType := false
+		for i := 0; i+1 < len(node.Content); i += 2 {
+			switch node.Content[i].Value {
+			case "sh", "ref", "map", "value":
+				hasType = true
+			case "secret":
+				// modifier, not a type
+			default:
+				return errors.NewTaskfileDecodeError(nil, node).WithMessage(`%q is not a valid variable type. Try "sh", "ref", "map", "value" or using a scalar value`, node.Content[i].Value)
 			}
-			if err := node.Decode(&m); err != nil {
-				return errors.NewTaskfileDecodeError(err, node)
-			}
-			v.Sh = m.Sh
-			v.Ref = m.Ref
+		}
+		if !hasType {
+			return errors.NewTaskfileDecodeError(nil, node).WithMessage(`a variable must define one of "sh", "ref", "map", "value" or be a scalar value`)
+		}
+		v.Sh = m.Sh
+		v.Ref = m.Ref
+		v.Secret = m.Secret
+		// Handle both "map" and "value" keys
+		if m.Map != nil {
 			v.Value = m.Map
-			return nil
-		default:
-			return errors.NewTaskfileDecodeError(nil, node).WithMessage(`%q is not a valid variable type. Try "sh", "ref", "map" or using a scalar value`, key)
+		} else if m.Value != nil {
+			v.Value = m.Value
 		}
+		return nil
 	default:
 		var value any
 		if err := node.Decode(&value); err != nil {

taskrc/ast/taskrc.go

@@ -19,6 +19,7 @@ type TaskRC struct {
 	Interactive  *bool           `yaml:"interactive"`
 	Remote       Remote          `yaml:"remote"`
 	Failfast     bool            `yaml:"failfast"`
+	TempDir      *string         `yaml:"temp-dir"`
 	Experiments  map[string]int  `yaml:"experiments"`
 }
 
@@ -70,4 +71,5 @@ func (t *TaskRC) Merge(other *TaskRC) {
 	t.Concurrency = cmp.Or(other.Concurrency, t.Concurrency)
 	t.Interactive = cmp.Or(other.Interactive, t.Interactive)
 	t.Failfast = cmp.Or(other.Failfast, t.Failfast)
+	t.TempDir = cmp.Or(other.TempDir, t.TempDir)
 }

taskrc/taskrc_test.go

@@ -112,6 +112,40 @@ func TestGetConfig_OnlyLocal(t *testing.T) { //nolint:paralleltest // cannot run
 	}, cfg)
 }
 
+func TestGetConfig_TempDir(t *testing.T) { //nolint:paralleltest // cannot run in parallel
+	_, _, localDir := setupDirs(t)
+
+	writeFile(t, localDir, ".taskrc.yml", `
+temp-dir: .task-cache
+`)
+
+	cfg, err := GetConfig(localDir)
+	require.NoError(t, err)
+	require.NotNil(t, cfg)
+	require.NotNil(t, cfg.TempDir)
+	assert.Equal(t, ".task-cache", *cfg.TempDir)
+}
+
+func TestGetConfig_TempDirMergePrecedence(t *testing.T) { //nolint:paralleltest // cannot run in parallel
+	xdgConfigDir, homeDir, localDir := setupDirs(t)
+
+	writeFile(t, xdgConfigDir, "taskrc.yml", `
+temp-dir: xdg-cache
+`)
+	writeFile(t, homeDir, ".taskrc.yml", `
+temp-dir: home-cache
+`)
+	writeFile(t, localDir, ".taskrc.yml", `
+temp-dir: local-cache
+`)
+
+	cfg, err := GetConfig(localDir)
+	require.NoError(t, err)
+	require.NotNil(t, cfg)
+	require.NotNil(t, cfg.TempDir)
+	assert.Equal(t, "local-cache", *cfg.TempDir)
+}
+
 func TestGetConfig_All(t *testing.T) { //nolint:paralleltest // cannot run in parallel
 	xdgConfigDir, homeDir, localDir := setupDirs(t)
 

testdata/gitignore/.gitignore

@@ -0,0 +1 @@
+ignored.txt

testdata/gitignore/Taskfile.yml

@@ -0,0 +1,25 @@
+version: '3'
+
+use_gitignore: true
+
+tasks:
+  build:
+    cmds:
+      - cp ./source.txt ./generated.txt
+    sources:
+      - ./*.txt
+      - exclude: ./generated.txt
+    generates:
+      - ./generated.txt
+    method: checksum
+
+  build-no-use_gitignore:
+    use_gitignore: false
+    cmds:
+      - cp ./source.txt ./generated.txt
+    sources:
+      - ./*.txt
+      - exclude: ./generated.txt
+    generates:
+      - ./generated.txt
+    method: checksum

testdata/gitignore/source.txt

@@ -0,0 +1 @@
+source content

testdata/gitignore/testdata/TestGitignoreChecksum-first_run.golden

@@ -0,0 +1 @@
+task: [build] cp ./source.txt ./generated.txt

testdata/gitignore/testdata/TestGitignoreChecksum-ignored_file_modified.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/gitignore/testdata/TestGitignoreChecksum-source_file_modified.golden

@@ -0,0 +1 @@
+task: [build] cp ./source.txt ./generated.txt

testdata/gitignore/testdata/TestGitignoreChecksum-up_to_date.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/gitignore_included/.gitignore

@@ -0,0 +1 @@
+ignored.txt

testdata/gitignore_included/Taskfile.yml

@@ -0,0 +1,9 @@
+version: '3'
+
+includes:
+  included: ./included/Taskfile.yml
+
+tasks:
+  default:
+    cmds:
+      - echo "root"

testdata/gitignore_included/included/Taskfile.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+use_gitignore: true
+
+tasks:
+  build:
+    cmds:
+      - echo "build executed"
+    sources:
+      - ./*.txt
+    method: checksum

testdata/gitignore_included/source.txt

@@ -0,0 +1 @@
+source

testdata/gitignore_included/testdata/TestGitignoreIncluded-first_run.golden

@@ -0,0 +1,2 @@
+task: [included:build] echo "build executed"
+build executed

testdata/gitignore_included/testdata/TestGitignoreIncluded-ignored_file_modified.golden

@@ -0,0 +1 @@
+task: Task "included:build" is up to date

testdata/gitignore_included/testdata/TestGitignoreIncluded-up_to_date.golden

@@ -0,0 +1 @@
+task: Task "included:build" is up to date

testdata/gitignore_included_override/.gitignore

@@ -0,0 +1 @@
+ignored.txt

testdata/gitignore_included_override/Taskfile.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+use_gitignore: true
+
+includes:
+  included: ./included/Taskfile.yml
+
+tasks:
+  default:
+    cmds:
+      - echo "root"

testdata/gitignore_included_override/included/Taskfile.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+use_gitignore: false
+
+tasks:
+  build:
+    cmds:
+      - echo "build executed"
+    sources:
+      - ./*.txt
+    method: checksum

testdata/gitignore_included_override/source.txt

@@ -0,0 +1 @@
+source

testdata/gitignore_included_override/testdata/TestGitignoreIncludedOverride-first_run.golden

@@ -0,0 +1,2 @@
+task: [included:build] echo "build executed"
+build executed

testdata/gitignore_included_override/testdata/TestGitignoreIncludedOverride-ignored_file_modified.golden

@@ -0,0 +1,2 @@
+task: [included:build] echo "build executed"
+build executed

testdata/gitignore_included_override/testdata/TestGitignoreIncludedOverride-up_to_date.golden

@@ -0,0 +1 @@
+task: Task "included:build" is up to date

testdata/gitignore_negation/.gitignore

@@ -0,0 +1 @@
+*.log

testdata/gitignore_negation/Taskfile.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+use_gitignore: true
+
+tasks:
+  build:
+    cmds:
+      - echo "build executed"
+    sources:
+      - ./sub/*.log
+    method: checksum

testdata/gitignore_negation/sub/.gitignore

@@ -0,0 +1 @@
+!debug.log

testdata/gitignore_negation/testdata/TestGitignoreNegation-first_run.golden

@@ -0,0 +1,2 @@
+task: [build] echo "build executed"
+build executed

testdata/gitignore_negation/testdata/TestGitignoreNegation-ignored_file_modified.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/gitignore_negation/testdata/TestGitignoreNegation-reincluded_file_modified.golden

@@ -0,0 +1,2 @@
+task: [build] echo "build executed"
+build executed

testdata/gitignore_negation/testdata/TestGitignoreNegation-up_to_date.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/gitignore_nested/Taskfile.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+use_gitignore: true
+
+tasks:
+  build:
+    cmds:
+      - echo "build executed"
+    sources:
+      - ./sub/*
+    method: checksum

testdata/gitignore_nested/sub/.gitignore

@@ -0,0 +1 @@
+secret.dat

testdata/gitignore_nested/sub/keep.txt

@@ -0,0 +1 @@
+keep

testdata/gitignore_nested/testdata/TestGitignoreNested-first_run.golden

@@ -0,0 +1,2 @@
+task: [build] echo "build executed"
+build executed

testdata/gitignore_nested/testdata/TestGitignoreNested-ignored_file_modified.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/gitignore_nested/testdata/TestGitignoreNested-source_file_modified.golden

@@ -0,0 +1,2 @@
+task: [build] echo "build executed"
+build executed

testdata/gitignore_nested/testdata/TestGitignoreNested-up_to_date.golden

@@ -0,0 +1 @@
+task: Task "build" is up to date

testdata/secrets/Taskfile.yml

@@ -0,0 +1,83 @@
+version: '3'
+
+vars:
+  # Public variable
+  APP_NAME: myapp
+
+  # Secret variable with value
+  API_KEY:
+    value: "secret-api-key-123"
+    secret: true
+
+  # Secret variable from shell command
+  PASSWORD:
+    sh: "echo 'my-super-secret-password'"
+    secret: true
+
+  # Non-secret variable
+  PUBLIC_URL: https://example.com
+
+tasks:
+  test-secret-masking:
+    desc: Test that secret variables are masked in logs
+    cmds:
+      - echo "Deploying {{.APP_NAME}} to {{.PUBLIC_URL}}"
+      - echo "Using API key {{.API_KEY}}"
+      - echo "Password is {{.PASSWORD}}"
+      - echo "Public app name is {{.APP_NAME}}"
+
+  test-multiple-secrets:
+    desc: Test multiple secrets in one command
+    cmds:
+      - echo "API={{.API_KEY}} PWD={{.PASSWORD}}"
+
+  test-mixed:
+    desc: Test mix of secret and public vars
+    vars:
+      LOCAL_SECRET:
+        value: "task-level-secret"
+        secret: true
+    cmds:
+      - echo "App={{.APP_NAME}} Secret={{.LOCAL_SECRET}} URL={{.PUBLIC_URL}}"
+
+  test-deferred-secret:
+    desc: Test that deferred commands mask secrets
+    vars:
+      DEFERRED_SECRET:
+        value: "deferred-secret-value"
+        secret: true
+    cmds:
+      - echo "Starting task"
+      - defer: echo "Cleanup with secret={{.DEFERRED_SECRET}} and app={{.APP_NAME}}"
+      - echo "Main command executed"
+
+  test-dynamic-secret-verbose:
+    desc: Test that dynamic (sh) secrets are masked even in verbose logs
+    cmds:
+      - echo "Password is {{.PASSWORD}}"
+
+  test-secret-key-order:
+    desc: Test that "secret" may be declared before the value/sh key
+    vars:
+      SECRET_FIRST:
+        secret: true
+        value: "order-independent-secret"
+      SH_SECRET_FIRST:
+        secret: true
+        sh: "echo 'sh-order-independent-secret'"
+    cmds:
+      - echo "Value={{.SECRET_FIRST}} Sh={{.SH_SECRET_FIRST}}"
+
+  test-env-secret-limitation:
+    desc: Test showing that env vars with secret flag are NOT masked (limitation)
+    env:
+      SECRET_TOKEN:
+        value: "env-secret-token-123"
+        secret: true
+      PUBLIC_ENV: "public-value"
+    cmds:
+      # Templates {{.VAR}} don't work with env - they're empty
+      - echo "Token via template is {{.SECRET_TOKEN}}"
+      # Shell $VAR works but is NOT masked (env vars not in template system)
+      - echo "Token via shell is $SECRET_TOKEN"
+      - echo "Public env is {{.PUBLIC_ENV}}"

testdata/secrets/testdata/TestSecretVars-deferred_command_with_secrets.golden

@@ -0,0 +1,6 @@
+task: [test-deferred-secret] echo "Starting task"
+Starting task
+task: [test-deferred-secret] echo "Main command executed"
+Main command executed
+task: [test-deferred-secret] echo "Cleanup with secret=***** and app=myapp"
+Cleanup with secret=deferred-secret-value and app=myapp

testdata/secrets/testdata/TestSecretVars-dynamic_secret_masked_in_verbose.golden

@@ -0,0 +1,5 @@
+task: dynamic variable: "echo 'my-super-secret-password'" result: "*****"
+task: "test-dynamic-secret-verbose" started
+task: [test-dynamic-secret-verbose] echo "Password is *****"
+Password is my-super-secret-password
+task: "test-dynamic-secret-verbose" finished

testdata/secrets/testdata/TestSecretVars-env_secret_limitation.golden

@@ -0,0 +1,6 @@
+task: [test-env-secret-limitation] echo "Token via template is "
+Token via template is 
+task: [test-env-secret-limitation] echo "Token via shell is $SECRET_TOKEN"
+Token via shell is env-secret-token-123
+task: [test-env-secret-limitation] echo "Public env is "
+Public env is 

testdata/secrets/testdata/TestSecretVars-mixed_secret_and_public_vars.golden

@@ -0,0 +1,2 @@
+task: [test-mixed] echo "App=myapp Secret=***** URL=https://example.com"
+App=myapp Secret=task-level-secret URL=https://example.com

testdata/secrets/testdata/TestSecretVars-multiple_secrets_masked.golden

@@ -0,0 +1,2 @@
+task: [test-multiple-secrets] echo "API=***** PWD=*****"
+API=secret-api-key-123 PWD=my-super-secret-password

testdata/secrets/testdata/TestSecretVars-secret_key_order_independent.golden

@@ -0,0 +1,2 @@
+task: [test-secret-key-order] echo "Value=***** Sh=*****"
+Value=order-independent-secret Sh=sh-order-independent-secret

testdata/secrets/testdata/TestSecretVars-secret_vars_are_masked_in_logs.golden

@@ -0,0 +1,8 @@
+task: [test-secret-masking] echo "Deploying myapp to https://example.com"
+Deploying myapp to https://example.com
+task: [test-secret-masking] echo "Using API key *****"
+Using API key secret-api-key-123
+task: [test-secret-masking] echo "Password is *****"
+Password is my-super-secret-password
+task: [test-secret-masking] echo "Public app name is myapp"
+Public app name is myapp

testdata/secrets/testdata/TestSecretVars-secret_vars_are_masked_in_summary.golden

@@ -0,0 +1,15 @@
+task: test-secret-masking
+
+Test that secret variables are masked in logs
+
+vars:
+  APP_NAME: "myapp"
+  API_KEY: *****
+  PASSWORD: *****
+  PUBLIC_URL: "https://example.com"
+
+commands:
+ - echo "Deploying myapp to https://example.com"
+ - echo "Using API key *****"
+ - echo "Password is *****"
+ - echo "Public app name is myapp"

variables.go

@@ -19,6 +19,16 @@ import (
 	"github.com/go-task/task/v3/taskfile/ast"
 )
 
+// shouldTaskUseGitignore resolves whether gitignore filtering applies to a
+// task: the task-level value takes precedence, falling back to the Taskfile's
+// global use_gitignore when the task does not set it.
+func (e *Executor) shouldTaskUseGitignore(t *ast.Task) bool {
+	if t.UseGitignore != nil {
+		return *t.UseGitignore
+	}
+	return e.Taskfile.UseGitignore != nil && *e.Taskfile.UseGitignore
+}
+
 // CompiledTask returns a copy of a task, but replacing variables in almost all
 // properties using the Go template package.
 func (e *Executor) CompiledTask(call *Call) (*ast.Task, error) {
@@ -43,6 +53,8 @@ func (e *Executor) CompiledTaskForTaskList(call *Call) (*ast.Task, error) {
 
 	cache := &templater.Cache{Vars: vars}
 
+	gitignore := e.shouldTaskUseGitignore(origTask)
+
 	return &ast.Task{
 		Task:                 origTask.Task,
 		Label:                templater.Replace(origTask.Label, cache),
@@ -59,6 +71,7 @@ func (e *Executor) CompiledTaskForTaskList(call *Call) (*ast.Task, error) {
 		Env:                  nil,
 		Dotenv:               origTask.Dotenv,
 		Silent:               deepcopy.Scalar(origTask.Silent),
+		UseGitignore:         &gitignore,
 		Interactive:          origTask.Interactive,
 		Internal:             origTask.Internal,
 		Method:               origTask.Method,
@@ -110,6 +123,8 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 		}
 	}
 
+	gitignore := e.shouldTaskUseGitignore(origTask)
+
 	new := ast.Task{
 		Task:                 origTask.Task,
 		Label:                templater.Replace(origTask.Label, cache),
@@ -126,6 +141,7 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 		Env:                  nil,
 		Dotenv:               templater.Replace(origTask.Dotenv, cache),
 		Silent:               deepcopy.Scalar(origTask.Silent),
+		UseGitignore:         &gitignore,
 		Interactive:          origTask.Interactive,
 		Internal:             origTask.Internal,
 		Method:               templater.Replace(origTask.Method, cache),
@@ -219,7 +235,7 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 				continue
 			}
 			if cmd.For != nil {
-				list, keys, err := itemsFromFor(cmd.For, new.Dir, new.Sources, new.Generates, vars, origTask.Location, cache)
+				list, keys, err := itemsFromFor(cmd.For, new.Dir, new.Sources, new.Generates, gitignore, vars, origTask.Location, cache)
 				if err != nil {
 					return nil, err
 				}
@@ -239,6 +255,8 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 						extra["KEY"] = keys[i]
 					}
 					newCmd := cmd.DeepCopy()
+					// Resolve template with secrets masked + loop vars for logging
+					newCmd.LogCmd = templater.MaskSecretsWithExtra(cmd.Cmd, cache.Vars, extra)
 					newCmd.Cmd = templater.ReplaceWithExtra(cmd.Cmd, cache, extra)
 					newCmd.Task = templater.ReplaceWithExtra(cmd.Task, cache, extra)
 					newCmd.If = templater.ReplaceWithExtra(cmd.If, cache, extra)
@@ -254,6 +272,8 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 				continue
 			}
 			newCmd := cmd.DeepCopy()
+			// Resolve template with secrets masked for logging
+			newCmd.LogCmd = templater.MaskSecrets(cmd.Cmd, cache.Vars)
 			newCmd.Cmd = templater.Replace(cmd.Cmd, cache)
 			newCmd.Task = templater.Replace(cmd.Task, cache)
 			newCmd.If = templater.Replace(cmd.If, cache)
@@ -268,7 +288,7 @@ func (e *Executor) compiledTask(call *Call, evaluateShVars bool) (*ast.Task, err
 				continue
 			}
 			if dep.For != nil {
-				list, keys, err := itemsFromFor(dep.For, new.Dir, new.Sources, new.Generates, vars, origTask.Location, cache)
+				list, keys, err := itemsFromFor(dep.For, new.Dir, new.Sources, new.Generates, gitignore, vars, origTask.Location, cache)
 				if err != nil {
 					return nil, err
 				}
@@ -339,6 +359,7 @@ func itemsFromFor(
 	dir string,
 	sources []*ast.Glob,
 	generates []*ast.Glob,
+	gitignore bool,
 	vars *ast.Vars,
 	location *ast.Location,
 	cache *templater.Cache,
@@ -347,13 +368,14 @@ func itemsFromFor(
 	var values []any  // The list of values to loop over
 	// Get the list from a matrix
 	if f.Matrix.Len() != 0 {
-		if err := resolveMatrixRefs(f.Matrix, cache); err != nil {
+		resolvedMatrix, err := resolveMatrixRefs(f.Matrix, cache)
+		if err != nil {
 			return nil, nil, errors.TaskfileInvalidError{
 				URI: location.Taskfile,
 				Err: err,
 			}
 		}
-		return asAnySlice(product(f.Matrix)), nil, nil
+		return asAnySlice(product(resolvedMatrix)), nil, nil
 	}
 	// Get the list from the explicit for list
 	if len(f.List) > 0 {
@@ -361,7 +383,7 @@ func itemsFromFor(
 	}
 	// Get the list from the task sources
 	if f.From == "sources" {
-		glist, err := fingerprint.Globs(dir, sources)
+		glist, err := fingerprint.Globs(dir, sources, gitignore)
 		if err != nil {
 			return nil, nil, err
 		}
@@ -375,7 +397,7 @@ func itemsFromFor(
 	}
 	// Get the list from the task generates
 	if f.From == "generates" {
-		glist, err := fingerprint.Globs(dir, generates)
+		glist, err := fingerprint.Globs(dir, generates, gitignore)
 		if err != nil {
 			return nil, nil, err
 		}
@@ -425,22 +447,43 @@ func itemsFromFor(
 	return values, keys, nil
 }
 
-func resolveMatrixRefs(matrix *ast.Matrix, cache *templater.Cache) error {
+// resolveMatrixRefs resolves any `ref:` rows in matrix and returns a new
+// Matrix with those rows populated. It must not mutate the matrix passed in:
+// that matrix is part of the shared, cached Task AST, and concurrent
+// invocations of the same task (e.g. via parallel deps) call this with the
+// same *ast.Matrix and would otherwise race on the row.Value assignment
+// below, intermittently leaking a value resolved for one caller into another
+// caller's expansion. See #2890.
+func resolveMatrixRefs(matrix *ast.Matrix, cache *templater.Cache) (*ast.Matrix, error) {
 	if matrix.Len() == 0 {
-		return nil
+		return matrix, nil
 	}
+	hasRef := false
 	for _, row := range matrix.All() {
+		if row.Ref != "" {
+			hasRef = true
+			break
+		}
+	}
+	if !hasRef {
+		return matrix, nil
+	}
+	resolved := matrix.DeepCopy()
+	for _, row := range resolved.All() {
 		if row.Ref != "" {
 			v := templater.ResolveRef(row.Ref, cache)
+			if cache.Err() != nil {
+				return nil, cache.Err()
+			}
 			switch value := v.(type) {
 			case []any:
 				row.Value = value
 			default:
-				return fmt.Errorf("matrix reference %q must resolve to a list", row.Ref)
+				return nil, fmt.Errorf("matrix reference %q must resolve to a list", row.Ref)
 			}
 		}
 	}
-	return nil
+	return resolved, nil
 }
 
 func resolveEnumRefs(requires *ast.Requires, cache *templater.Cache) error {

variables_test.go

@@ -0,0 +1,45 @@
+package task
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/go-task/task/v3/internal/templater"
+	"github.com/go-task/task/v3/taskfile/ast"
+)
+
+// TestResolveMatrixRefsDoesNotMutateInput is a regression test for #2890. The
+// *ast.Matrix passed to resolveMatrixRefs is part of the shared, cached Task
+// AST: the same *ast.Matrix is reused on every invocation of a task. If
+// resolveMatrixRefs resolved `ref:` rows in place, concurrent invocations of
+// the same task (e.g. via parallel deps) would race on that mutation and leak
+// a value resolved for one caller into another caller's expansion.
+//
+// The invariant that prevents this is that resolveMatrixRefs must resolve into
+// a copy and leave its input untouched, which this test asserts deterministically.
+func TestResolveMatrixRefsDoesNotMutateInput(t *testing.T) {
+	t.Parallel()
+
+	matrix := ast.NewMatrix(
+		&ast.MatrixElement{Key: "ARCH", Value: &ast.MatrixRow{Ref: ".ARCH_VAR"}},
+	)
+
+	vars := ast.NewVars()
+	vars.Set("ARCH_VAR", ast.Var{Value: []any{"amd64"}})
+	cache := &templater.Cache{Vars: vars}
+
+	resolved, err := resolveMatrixRefs(matrix, cache)
+	require.NoError(t, err)
+
+	// The returned matrix has the ref resolved...
+	row, ok := resolved.Get("ARCH")
+	require.True(t, ok, "ARCH row missing from resolved matrix")
+	require.Equal(t, []any{"amd64"}, row.Value)
+
+	// ...but the shared input matrix must be left untouched.
+	orig, ok := matrix.Get("ARCH")
+	require.True(t, ok, "ARCH row missing from input matrix")
+	require.Nil(t, orig.Value, "input matrix was mutated: Ref rows must be resolved into a copy")
+	require.Equal(t, ".ARCH_VAR", orig.Ref, "input matrix Ref was altered")
+}

watch.go

@@ -205,7 +205,7 @@ func (e *Executor) collectSources(calls []*Call) ([]string, error) {
 	var sources []string
 
 	err := e.traverse(calls, func(task *ast.Task) error {
-		files, err := fingerprint.Globs(task.Dir, task.Sources)
+		files, err := fingerprint.Globs(task.Dir, task.Sources, task.ShouldUseGitignore())
 		if err != nil {
 			return err
 		}

website/package.json

@@ -23,5 +23,5 @@
     "vitepress-plugin-llms": "^1.9.1",
     "vue": "^3.5.18"
   },
-  "packageManager": "pnpm@11.5.0+sha512.dbfcc4f81cf48597afd4bc391ffdf12c11f1a9fb83a395bfa6b0a2d9cc2fd8ffebafdb1ccbd529632153f793904c2615b7f09fe1a345473fd1c35845172a8eb1"
+  "packageManager": "pnpm@11.8.0+sha512.c1f5e7c4cb241c8f174b743851d82f42b802324afc8b0f116b96adb15aa06664948dde36960a3ba1079ba5b4b29dd0140135b94b5b5f5263592249d68e555f26"
 }