1 files changed, 68 insertions, 0 deletions
diff --git a/cmd/frontend/frontend.go b/cmd/frontend/frontend.go
new file mode 100644
index 0000000..9679d6f
--- /dev/null
+++ b/cmd/frontend/frontend.go
@@ -0,0 +1,68 @@
+package frontend
+
+import (
+	"errors"
+	"log"
+
+	"github.com/evanw/esbuild/pkg/api"
+	"github.com/urfave/cli/v2"
+)
+
+var FrontendCommand *cli.Command = &cli.Command{
+	Name:        "frontend",
+	Description: "Build/watch frontend",
+	Action: func(c *cli.Context) error {
+		dev := c.Bool("dev")
+		watch := c.Bool("watch")
+		buildOpts := api.BuildOptions{
+			EntryPoints: []string{
+				"./web/src/index.js",
+				"./web/src/index.css",
+				"./web/src/index.html",
+			},
+			Outdir:            "./web/dist",
+			Bundle:            true,
+			Write:             true,
+			MinifyWhitespace:  !dev,
+			MinifyIdentifiers: !dev,
+			MinifySyntax:      !dev,
+			JSX:               api.JSXAutomatic,
+			Loader: map[string]api.Loader{
+				".js":   api.LoaderJSX,
+				".css":  api.LoaderCSS,
+				".html": api.LoaderCopy,
+			},
+		}
+		if watch {
+			ctx, err := api.Context(buildOpts)
+			if err != nil {
+				return err
+			}
+			if err := ctx.Watch(api.WatchOptions{}); err != nil {
+				return err
+			}
+			log.Println("watching frontend")
+			<-c.Done()
+		} else {
+			if br := api.Build(buildOpts); br.Errors != nil {
+				for _, e := range br.Errors {
+					log.Println(e.Location, e.Detail, e.Text)
+				}
+
+				return errors.New("build failed")
+			}
+		}
+
+		return nil
+	},
+	Flags: []cli.Flag{
+		&cli.BoolFlag{
+			Name:  "dev",
+			Value: false,
+		},
+		&cli.BoolFlag{
+			Name:  "watch",
+			Value: false,
+		},
+	},
+}