From 2a3f049336f309d4f6d5a76e3d5d629b70cee8d8 Mon Sep 17 00:00:00 2001
From: Jamie Edge <JamieEdge@users.noreply.github.com>
Date: Sun, 4 Apr 2021 12:57:58 +0100
Subject: [PATCH] Updated the version output to use Go module build information
 if available. Enabled GoReleaser module proxying for verifiable builds.

---
 .goreleaser.yml  |  5 +++++
 cmd/task/task.go | 25 +++++++++++++++++++++----
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/.goreleaser.yml b/.goreleaser.yml
index e67d7b9f..07f3e719 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -17,6 +17,11 @@ build:
       goarch: 386
   env:
     - CGO_ENABLED=0
+  ldflags:
+    - -s -w # Don't set main.version.
+
+gomod:
+  proxy: true
 
 archives:
   - name_template: "{{.Binary}}_{{.Os}}_{{.Arch}}"
diff --git a/cmd/task/task.go b/cmd/task/task.go
index 11d7ffab..eba118eb 100644
--- a/cmd/task/task.go
+++ b/cmd/task/task.go
@@ -7,6 +7,7 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"syscall"
 
@@ -18,9 +19,7 @@ import (
 	"github.com/go-task/task/v3/taskfile"
 )
 
-var (
-	version = "master"
-)
+var version = ""
 
 const usage = `Usage: task [-ilfwvsd] [--init] [--list] [--force] [--watch] [--verbose] [--silent] [--dir] [--taskfile] [--dry] [--summary] [task...]
 
@@ -93,7 +92,7 @@ func main() {
 	pflag.Parse()
 
 	if versionFlag {
-		fmt.Printf("Task version: %s\n", version)
+		fmt.Printf("Task version: %s\n", getVersion())
 		return
 	}
 
@@ -217,3 +216,21 @@ func getSignalContext() context.Context {
 	}()
 	return ctx
 }
+
+func getVersion() string {
+	if version != "" {
+		return version
+	}
+
+	if info, ok := debug.ReadBuildInfo(); ok && info.Main.Version != "" {
+		version = info.Main.Version
+
+		if info.Main.Sum != "" {
+			version += fmt.Sprintf(" (%s)", info.Main.Sum)
+		}
+	} else {
+		version = "unknown"
+	}
+
+	return version
+}