From 01885017f0dd9e24b0828b360111471f71c1b98d Mon Sep 17 00:00:00 2001
From: Filip Nguyen <nguyenfilip@google.com>
Date: Wed, 5 Feb 2020 21:59:35 +0100
Subject: [PATCH] Goreleaser (#394)

When publishing binaries using Goreleaser use build flags.

Also remove custom archives and checksum name_templates because
Goreleaser has reasonable defaults, see https://goreleaser.com/customization/#Archive
---
 .goreleaser.yml         | 15 +++++++--------
 mockgen/mockgen.go      | 18 ++++++++++++++++--
 mockgen/version.1.11.go |  2 +-
 mockgen/version.1.12.go |  2 +-
 4 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/.goreleaser.yml b/.goreleaser.yml
index edf9277d..2a272d66 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -22,15 +22,14 @@ builds:
       - GOPROXY=https://proxy.golang.org
       - GOSUMDB=sum.golang.org
     main: ./mockgen/
-archive:
-  format: tar.gz
-  wrap_in_directory: true
-  name_template: '{{ .Binary }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}'
-  files:
-    - LICENSE
-    - README.md
+
+archives:
+ - format: tar.gz
+   wrap_in_directory: true
+   files:
+     - LICENSE
+     - README.md
 checksum:
-  name_template: '{{ .Binary }}-{{ .Version }}-checksums.txt'
 snapshot:
   name_template: "snap-{{ .Commit }}"
 changelog:
diff --git a/mockgen/mockgen.go b/mockgen/mockgen.go
index b13885d9..ed87b8e2 100644
--- a/mockgen/mockgen.go
+++ b/mockgen/mockgen.go
@@ -45,6 +45,12 @@ const (
 	gomockImportPath = "github.com/golang/mock/gomock"
 )
 
+var (
+	version = ""
+	commit  = "none"
+	date    = "unknown"
+)
+
 var (
 	source          = flag.String("source", "", "(source mode) Input Go source file; enables source mode.")
 	destination     = flag.String("destination", "", "Output file; defaults to stdout.")
@@ -55,14 +61,14 @@ var (
 	copyrightFile   = flag.String("copyright_file", "", "Copyright file used to add copyright header")
 
 	debugParser = flag.Bool("debug_parser", false, "Print out parser results only.")
-	version     = flag.Bool("version", false, "Print version.")
+	showVersion = flag.Bool("version", false, "Print version.")
 )
 
 func main() {
 	flag.Usage = usage
 	flag.Parse()
 
-	if *version {
+	if *showVersion {
 		printVersion()
 		return
 	}
@@ -633,3 +639,11 @@ func lookupPackageName(importPath string) (string, bool) {
 	}
 	return pkg.Name, true
 }
+
+func printVersion() {
+	if version != "" {
+		fmt.Printf("v%s\nCommit: %s\nDate: %s\n", version, commit, date)
+	} else {
+		printModuleVersion()
+	}
+}
diff --git a/mockgen/version.1.11.go b/mockgen/version.1.11.go
index e47183d2..e6b25db2 100644
--- a/mockgen/version.1.11.go
+++ b/mockgen/version.1.11.go
@@ -20,7 +20,7 @@ import (
 	"log"
 )
 
-func printVersion() {
+func printModuleVersion() {
 	log.Printf("No version information is available for Mockgen compiled with " +
 		"version 1.11")
 }
diff --git a/mockgen/version.1.12.go b/mockgen/version.1.12.go
index 3cc2ad83..ad121ae6 100644
--- a/mockgen/version.1.12.go
+++ b/mockgen/version.1.12.go
@@ -23,7 +23,7 @@ import (
 	"runtime/debug"
 )
 
-func printVersion() {
+func printModuleVersion() {
 	if bi, exists := debug.ReadBuildInfo(); exists {
 		fmt.Println(bi.Main.Version)
 	} else {