ci: configure goreleaser

.github/workflows/release.yml

@@ -0,0 +1,26 @@
+name: goreleaser
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -2,4 +2,5 @@
 /testout/
 /.testdata*/
 /.examples/
-.idea/
+.idea/
+/dist/

.goreleaser.yml

@@ -0,0 +1,25 @@
+before:
+  hooks:
+    - go mod download
+builds:
+  - id: cxgo
+    main: ./cmd/cxgo
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+    goarch:
+      - 386
+      - amd64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-dev"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^examples:'
+      - '^test:'
+      - '^ci:'

cmd/cxgo/main.go

@@ -24,14 +24,39 @@ import (
 )
 
 var Root = &cobra.Command{
-	Use:  "cxgo",
-	RunE: run,
+	Use:   "cxgo",
+	Short: "transpile a C project to Go",
+	RunE:  run,
 }
 
+const (
+	version = "dev"
+	commit  = ""
+	date    = ""
+)
+
 var configPath = "cxgo.yml"
 
+func printVersion() {
+	vers := version
+	if s := commit; s != "" {
+		vers = fmt.Sprintf("%s (%s)", vers, s[:8])
+	}
+	fmt.Printf("version: %s\n", vers)
+	if date != "" {
+		fmt.Printf("built: %s\n", date)
+	}
+}
+
 func init() {
 	Root.Flags().StringVarP(&configPath, "config", "c", configPath, "config file path")
+	Root.AddCommand(&cobra.Command{
+		Use:   "version",
+		Short: "print cxgo version",
+		Run: func(cmd *cobra.Command, args []string) {
+			printVersion()
+		},
+	})
 }
 
 func main() {