refactor(cmd/goproxy): inject version info at build time

.github/workflows/release.yaml

@@ -19,8 +19,7 @@ jobs:
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v5
         with:
-          args: release --rm-dist
-          workdir: cmd/goproxy
+          args: release --clean
         env:
           GITHUB_TOKEN: ${{github.token}}
   docker:

.goreleaser.yaml

@@ -0,0 +1,28 @@
+before:
+  hooks:
+    - go mod download
+
+builds:
+  - id: goproxy
+    main: ./cmd/goproxy
+    ldflags:
+      - -s -w -X github.com/goproxy/goproxy/cmd/goproxy/internal.Version=v{{.Version}}
+    env:
+      - CGO_ENABLED=0
+    targets:
+      - darwin_amd64
+      - darwin_arm64
+      - linux_386
+      - linux_amd64
+      - linux_arm64
+      - linux_arm_6
+      - linux_arm_7
+      - linux_ppc64le
+      - linux_s390x
+      - windows_386
+      - windows_amd64
+      - windows_arm64
+    mod_timestamp: "{{.CommitTimestamp}}"
+
+archives:
+  - id: default

cmd/goproxy/internal/internal.go

@@ -10,12 +10,18 @@ func Execute() int {
 	return 0
 }
 
+// Version is the version of the running binary set by the Go linker.
+var Version string
+
 // binaryVersion returns the version of the running binary.
 func binaryVersion() string {
 	info, ok := debug.ReadBuildInfo()
 	if !ok {
 		return ""
 	}
+	if Version != "" {
+		info.Main.Version = Version
+	}
 	version := "Version: " + info.Main.Version + "\n"
 	for _, setting := range info.Settings {
 		switch setting.Key {