deploy.go

// Deploy script for github pages
// Loosely based on Docusaurus Github Pages deploy script
// https://github.com/facebook/docusaurus/blob/542228ee1beb5cfddd7ba8ae088f109f164e80c5/packages/docusaurus/src/commands/deploy.ts#L43

package main

import (
	"fmt"
	"log"
	"os"
	"strings"

	"github.com/bitfield/script"
	"github.com/plus3it/gorecurcopy"
)

const (
	projectName      = "pincerhex"
	deploymentBranch = "gh-pages"
)

func execCmd(cmd string) error {
	log.Println(cmd)
	p := script.Exec(cmd)
	p.Stdout()
	return p.Error()
}

func getCmdOutput(cmd string) string {
	out, err := script.Exec(cmd).String()
	if err != nil {
		log.Fatalf("failed command `%s`: %v", cmd, err)
	}
	return strings.TrimSpace(out)
}

func mkTmpDir() (string, func()) {
	dir, err := os.MkdirTemp(os.TempDir(), projectName+"-"+deploymentBranch)
	if err != nil {
		log.Fatalf("failed to make temp dir: %v", err)
	}
	return dir, func() {
		if err := os.RemoveAll(dir); err != nil {
			log.Printf("failed to remove dir: %v\n", err)
		}
	}
}

func main() {
	originUrl := getCmdOutput("git config --get remote.origin.url")
	latestHash := getCmdOutput("git rev-parse HEAD")

	output, cleanOutput := mkTmpDir()
	defer cleanOutput()
	gitPublish, cleanGitPublish := mkTmpDir()
	defer cleanGitPublish()

	if err := gorecurcopy.CopyDirectory("./pincerhex_gui/dist", output); err != nil {
		log.Fatalf("failed to copy build to output dir: %v", err)
	}

	os.Chdir(gitPublish)
	cloneCmd := fmt.Sprintf("git clone --depth 1 --branch %s %s %s", deploymentBranch, originUrl, gitPublish)
	if err := execCmd(cloneCmd); err != nil {
		// Branch doesn't exist, create new branch
		execCmd("git init")
		execCmd("git checkout -b " + deploymentBranch)
		execCmd("git remote add origin " + originUrl)
	} else {
		execCmd("git rm -rf .") // Simply remove all files
	}
	if err := gorecurcopy.CopyDirectory(output, gitPublish); err != nil {
		log.Fatalf("failed to copy output to publish dir: %v", err)
	}
	os.Chdir(gitPublish)
	execCmd("git add --all")
	commitErr := execCmd(fmt.Sprintf("git commit -m \"Deploy website - based on %s\"", latestHash))
	if err := execCmd("git push --force origin " + deploymentBranch); err != nil {
		log.Fatalf("failed to push to origin: %v", err)
	} else if commitErr == nil {
		fmt.Printf("Website is live at: https://%s\n", projectName)
	}
}