feat: add joinEnv and joinUrl string functions and 2 new system vars (#2408)

internal/summary/summary.go

@@ -285,7 +285,9 @@ func isEnvVar(key string, envVars map[string]bool) bool {
 		key == "TASKFILE_DIR" ||
 		key == "USER_WORKING_DIR" ||
 		key == "ALIAS" ||
-		key == "MATCH" {
+		key == "MATCH" ||
+		key == "PATH_LIST_SEPARATOR" ||
+		key == "FILE_PATH_SEPARATOR" {
 		return true
 	}
 	return envVars[key]

internal/templater/funcs.go

@@ -3,6 +3,8 @@ package templater
 import (
 	"maps"
 	"math/rand/v2"
+	"os"
+	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -21,8 +23,8 @@ var templateFuncs template.FuncMap
 
 func init() {
 	taskFuncs := template.FuncMap{
-		"OS":           os,
-		"ARCH":         arch,
+		"OS":           goos,
+		"ARCH":         goarch,
 		"numCPU":       runtime.NumCPU,
 		"catLines":     catLines,
 		"splitLines":   splitLines,
@@ -33,6 +35,8 @@ func init() {
 		"splitArgs":    splitArgs,
 		"IsSH":         IsSH, // Deprecated
 		"joinPath":     filepath.Join,
+		"joinEnv":      joinEnv,
+		"joinUrl":      joinUrl,
 		"relPath":      filepath.Rel,
 		"absPath":      filepath.Abs,
 		"merge":        merge,
@@ -57,11 +61,11 @@ func init() {
 	maps.Copy(templateFuncs, taskFuncs)
 }
 
-func os() string {
+func goos() string {
 	return runtime.GOOS
 }
 
-func arch() string {
+func goarch() string {
 	return runtime.GOARCH
 }
 
@@ -95,6 +99,14 @@ func IsSH() bool {
 	return true
 }
 
+func joinEnv(elem ...string) string {
+	return strings.Join(elem, string(os.PathListSeparator))
+}
+
+func joinUrl(elem ...string) string {
+	return path.Join(elem...)
+}
+
 func merge(base map[string]any, v ...map[string]any) map[string]any {
 	cap := len(v)
 	for _, m := range v {