feat: with shuttletask; format

shuttletask/format.go

@@ -0,0 +1,71 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"dagger.io/dagger"
+)
+
+const GOLINES_CONTAINER = "golang"
+const GOLINES_VERSION = "github.com/segmentio/golines@v0.9.0"
+
+type Opts struct {
+	Path         string
+	IgnoredFiles []string
+}
+
+type OptsFunc func(ctx context.Context, o *Opts) error
+
+func WithPath(path string) OptsFunc {
+	return func(ctx context.Context, o *Opts) error {
+		o.Path = path
+
+		return nil
+	}
+}
+
+func Format(ctx context.Context, optsFuncs ...OptsFunc) error {
+	opts := &Opts{}
+
+	for _, f := range optsFuncs {
+		err := f(ctx, opts)
+		if err != nil {
+			return fmt.Errorf("failed to apply options: %v", err)
+		}
+	}
+
+	client, err := dagger.Connect(ctx, dagger.WithLogOutput(os.Stderr))
+	if err != nil {
+		return fmt.Errorf("could not connect to dagger: %v", err)
+	}
+
+	hostDir := client.Host().
+		Directory(opts.Path, dagger.HostDirectoryOpts{Exclude: opts.IgnoredFiles})
+
+	golines := client.Container().
+		From(GOLINES_CONTAINER).
+		WithExec([]string{"go", "install", GOLINES_VERSION}).
+		WithDirectory("/mnt/app", hostDir).
+		WithExec([]string{"golines", "-w", "/mnt/app"})
+
+	exitCode, err := golines.ExitCode(ctx)
+	if err != nil {
+		return fmt.Errorf("could not format code: %v", err)
+	}
+	if exitCode != 0 {
+		return fmt.Errorf("formatting failed with exitcode: %d", exitCode)
+	}
+
+	exported, err := golines.Directory("/mnt/app").Export(ctx, opts.Path)
+	if err != nil {
+		return fmt.Errorf("failed to export to host: %v", err)
+	}
+	if !exported {
+		return fmt.Errorf("failed to export, see stderr for reason")
+
+	}
+
+	return nil
+}