ci: Add Hadolint and update main.go

.hadolint.yaml

@@ -1,4 +1,7 @@
 ---
+trustedRegistries:
+  - docker.io
+
 ignored:
   - DL3008
   - DL3018

cc/linting/h.go

@@ -0,0 +1,48 @@
+//revive:disable:package-comments,exported
+package linting
+
+import (
+	"cc/util"
+	"context"
+	"path/filepath"
+
+	"dagger.io/dagger"
+)
+
+func Hadolint(dir string, c *dagger.Client, id dagger.ContainerID, mountedDir string) error {
+	ctx := context.Background()
+
+	p := filepath.Join(dir, "..")
+	file := c.Host().
+		Directory(p).
+		File(".hadolint.yaml")
+
+	id, err := util.MountedHostDirectory(c, id, p, mountedDir).
+		ID(ctx)
+	if err != nil {
+		return err
+	}
+
+	_, err = H(c, id).
+		WithWorkdir(mountedDir).
+		WithMountedFile("/.config/.hadolint.yaml", file).
+		WithExec([]string{"sh", "-c", "/hadolint --config /.config/.hadolint.yaml $(find . -type f \\( -name Dockerfile -o -name Dockerfile.* \\))"}).
+		Stdout(ctx)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func H(c *dagger.Client, id dagger.ContainerID) *dagger.Container {
+	return h(c, id)
+}
+
+func h(c *dagger.Client, id dagger.ContainerID) *dagger.Container {
+	hadolint := c.
+		Container().
+		From("hadolint/hadolint:latest-alpine")
+
+	return c.Container(dagger.ContainerOpts{ID: id}).
+		WithFile("/", hadolint.File("/bin/hadolint"))
+}

cc/main.go

@@ -27,6 +27,7 @@ func main() {
 	c = c.Pipeline("code_quality")
 	id, err := c.
 		Container().
+		From("busybox:uclibc").
 		WithMountedTemp("/mountedtmp").
 		ID(ctx)
 	if err != nil {
@@ -47,10 +48,19 @@ func main() {
 	}
 
 	var wg sync.WaitGroup
-	wg.Add(6)
+	wg.Add(7)
 
 	runtime.GOMAXPROCS(runtime.NumCPU())
 
+	go func() {
+		defer wg.Done()
+		f := c.Pipeline("hadolint")
+		err = linting.Hadolint(dir, f, id, mountedDir)
+		if err != nil {
+			panic(err)
+		}
+	}()
+
 	go func() {
 		defer wg.Done()
 		f := c.Pipeline("shellcheck")