release.go

package main

import (
	"fmt"
	"io/ioutil"
	"os"

	"github.com/progrium/go-shell"
	"github.com/spf13/cobra"
)

func init() {
	Glu.AddCommand(releaseCmd)
}

var releaseCmd = &cobra.Command{
	Use:   "release [release-name] [checksum-hash]",
	Short: "Creates a github release using gh-release",
	Run: func(cmd *cobra.Command, args []string) {
		var (
			info         = NewProjectInfo()
			githubRepo   = info.Owner + "/" + info.Name
			version      = info.Version
			releaseName  = optArg(args, 0, version)
			checksumHash = optArg(args, 1, "")
			arch         = shellOutput("uname -m")
			branch       = shellOutput("git rev-parse --abbrev-ref HEAD")
		)

		defer shell.ErrExit()
		shell.Trace = true
		shell.Tee = os.Stdout
		sh("go get -u github.com/progrium/gh-release/...")
		sh("rm -rf release")
		sh("mkdir release")

		for _, platform := range []string{"Linux", "Darwin"} {
			if binary := detectBinaryBuild(platform); binary != "" {
				// tar -zcf release/$(NAME)_$(VERSION)_$(PLATFORM)_$(ARCH).tgz -C build/$(PLATFORM) $(BINARYNAME)
				sh("tar -zcf",
					fmt.Sprintf("release/%s_%s_%s_%s.tgz", info.Name, version, platform, arch),
					"-C build/"+platform, binary)
			}
		}

		if dir, _ := ioutil.ReadDir("release"); len(dir) == 0 {
			sh("cp build/* release")
		}

		if checksumHash != "" {
			sh("gh-release checksums", checksumHash)
		}

		sh("gh-release create", githubRepo, version, branch, releaseName)
	},
}

func detectBinaryBuild(platform string) string {
	if !exists("build", platform) {
		return ""
	}
	dir, err := ioutil.ReadDir("build/" + platform)
	fatal(err)
	if len(dir) != 1 {
		return ""
	}
	return dir[0].Name()
}