updated releasing

Author: matryer

.goreleaser.yml

@@ -0,0 +1,32 @@
+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+builds:
+- env:
+  - CGO_ENABLED=0
+  goos:
+  - darwin
+  - windows
+  - linux
+  goarch:
+  - amd64
+  - arm
+  - arm64
+  ldflags:
+  - -X main.Version={{.Version}}
+archives:
+- replacements:
+    darwin: macOS
+    linux: Linux
+    windows: Windows
+    386: i386
+    amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'

Makefile

@@ -0,0 +1,4 @@
+.PHONY: release
+
+release:
+	goreleaser --rm-dist

main.go

@@ -14,6 +14,9 @@ import (
 	"github.com/pkg/errors"
 )
 
+// Version is set during build.
+var Version = "dev"
+
 func main() {
 	if err := run(os.Stdout, os.Args); err != nil {
 		fmt.Fprintf(os.Stderr, "%s\n", err)
@@ -24,7 +27,7 @@ func main() {
 func run(stdout io.Writer, args []string) error {
 	flags := flag.NewFlagSet(args[0], flag.ContinueOnError)
 	flags.Usage = func() {
-		fmt.Println(args[0] + ` usage:
+		fmt.Println(args[0] + " " + Version + ` usage:
 	oto [flags] paths [[path2] [path3]...]`)
 		fmt.Println(`
 flags:`)

releasing.md

@@ -0,0 +1,28 @@
+# Releasing
+
+This tool uses Go Releaser to manage release builds.
+
+## Setup
+
+Install Go Releaser.
+
+```bash
+brew install goreleaser/tap/goreleaser
+```
+
+* Make a [New personal access token on GitHub](https://github.com/settings/tokens/new) and set it as the `GITHUB_TOKEN` environment variable
+
+## Releasing
+
+Tag the repo:
+
+```bash
+$ git tag -a v0.1.0 -m "release tag."
+$ git push origin v0.1.0
+```
+
+Then:
+
+```bash
+make release
+```