Add cli option to skip packages if only metadata is present (without checking the image)

cmd/build.go

@@ -79,6 +79,7 @@ var buildCmd = &cobra.Command{
 		onlydeps := viper.GetBool("onlydeps")
 		keepExportedImages := viper.GetBool("keep-exported-images")
 		full, _ := cmd.Flags().GetBool("full")
+		skip, _ := cmd.Flags().GetBool("skip-if-metadata-exists")
 
 		compilerSpecs := compiler.NewLuetCompilationspecs()
 		var compilerBackend compiler.CompilerBackend
@@ -143,6 +144,7 @@ var buildCmd = &cobra.Command{
 		opts.OnlyDeps = onlydeps
 		opts.NoDeps = nodeps
 		opts.KeepImageExport = keepExportedImages
+		opts.SkipIfMetadataExists = skip
 
 		luetCompiler := compiler.NewLuetCompiler(compilerBackend, generalRecipe.GetDatabase(), opts)
 		luetCompiler.SetConcurrency(concurrency)
@@ -231,6 +233,7 @@ func init() {
 	buildCmd.Flags().Bool("nodeps", false, "Build only the target packages, skipping deps (it works only if you already built the deps locally, or by using --pull) ")
 	buildCmd.Flags().Bool("onlydeps", false, "Build only package dependencies")
 	buildCmd.Flags().Bool("keep-exported-images", false, "Keep exported images used during building")
+	buildCmd.Flags().Bool("skip-if-metadata-exists", false, "Skip package if metadata exists")
 
 	buildCmd.Flags().String("solver-type", "", "Solver strategy")
 	buildCmd.Flags().Float32("solver-rate", 0.7, "Solver learning rate")

pkg/compiler/compiler.go

@@ -256,7 +256,7 @@ func (cs *LuetCompiler) compileWithImage(image, buildertaggedImage, packageImage
 
 	if !cs.Clean {
 		exists := cs.Backend.ImageExists(buildertaggedImage) && cs.Backend.ImageExists(packageImage)
-		if art, err := LoadArtifactFromYaml(p); err == nil && exists {
+		if art, err := LoadArtifactFromYaml(p); err == nil && (cs.Options.SkipIfMetadataExists || exists) {
 			Debug("Artifact reloaded. Skipping build")
 			return art, err
 		}

pkg/compiler/interface.go

@@ -55,6 +55,7 @@ type CompilerOptions struct {
 	OnlyDeps             bool
 	NoDeps               bool
 	SolverOptions        config.LuetSolverOptions
+	SkipIfMetadataExists bool
 }
 
 func NewDefaultCompilerOptions() *CompilerOptions {