feat(release): initial attempt at providing automatic builds

cmd/github-release/main.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/google/go-github/v35/github"
+	"github.com/urfave/cli/v2"
+	"gopkg.in/yaml.v3"
+)
+
+var app = &cli.App{
+	Name:  "github-release",
+	Usage: "manage GitHub releases",
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:    "github-token",
+			Aliases: []string{"t"},
+			Usage:   "GitHub API Token (read from GITHUB_TOKEN if set)",
+		},
+		&cli.StringFlag{
+			Name:    "repo",
+			Aliases: []string{"r"},
+			Usage:   "Owner/name of GitHub repo to publish releases to",
+			EnvVars: []string{"GITHUB_REPOSITORY"},
+			Value:   "jimeh/build-emacs-for-macos",
+		},
+		&cli.PathFlag{
+			Name:      "plan",
+			Aliases:   []string{"p"},
+			Usage:     "Load plan from `FILE`",
+			EnvVars:   []string{"BUILD_PLAN"},
+			Required:  true,
+			TakesFile: true,
+		},
+	},
+	Commands: []*cli.Command{
+		checkCmd,
+		publishCmd,
+	},
+}
+
+type globalOptions struct {
+	gh   *github.Client
+	repo *Repo
+	plan *Plan
+}
+
+func actionHandler(
+	f func(*cli.Context, *globalOptions) error,
+) func(*cli.Context) error {
+	return func(c *cli.Context) error {
+		b, err := os.ReadFile(c.Path("plan"))
+		if err != nil {
+			return err
+		}
+
+		plan := &Plan{}
+		err = yaml.Unmarshal(b, plan)
+		if err != nil {
+			return err
+		}
+
+		token := c.String("github-token")
+		if t := os.Getenv("GITHUB_TOKEN"); t != "" {
+			token = t
+		}
+
+		opts := &globalOptions{
+			gh:   NewGitHubClient(c.Context, token),
+			repo: NewRepo(c.String("repo")),
+			plan: plan,
+		}
+
+		return f(c, opts)
+	}
+}
+
+func main() {
+	err := app.Run(os.Args)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %s\n", err.Error())
+		os.Exit(1)
+	}
+}