add content-addressed hak source mode (#7)

Reviewed-on: #7
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

internal/app/app.go

@@ -466,13 +466,14 @@ func relPathFromRoot(root, path string) string {
 }
 
 type buildHAKOptions struct {
-	filteredHAKs     []string
-	filteredArchives []string
-	sourceManifest   string
-	musicDatasets    []string
-	skipMusic        bool
-	planOnly         bool
-	logLevel         logLevel
+	filteredHAKs         []string
+	filteredArchives     []string
+	sourceManifest       string
+	contentAddressedRoot string
+	musicDatasets        []string
+	skipMusic            bool
+	planOnly             bool
+	logLevel             logLevel
 }
 
 type logLevel int
@@ -1045,11 +1046,12 @@ func runBuildHAKs(ctx context) error {
 	defer spin.stop()
 	var result pipeline.BuildResult
 	pipelineOpts := pipeline.BuildHAKOptions{
-		Progress:           console.progress,
-		ArchiveNames:       opts.filteredArchives,
-		SourceManifestPath: opts.sourceManifest,
-		SkipMusic:          opts.skipMusic,
-		MusicDatasetIDs:    opts.musicDatasets,
+		Progress:             console.progress,
+		ArchiveNames:         opts.filteredArchives,
+		SourceManifestPath:   opts.sourceManifest,
+		ContentAddressedRoot: opts.contentAddressedRoot,
+		SkipMusic:            opts.skipMusic,
+		MusicDatasetIDs:      opts.musicDatasets,
 	}
 	if opts.planOnly {
 		result, err = pipeline.PlanHAKsWithOptions(p, pipelineOpts)
@@ -1074,7 +1076,7 @@ func parseBuildHAKArgs(args []string) (buildHAKOptions, error) {
 		arg := args[index]
 		switch arg {
 		case "-h", "--help":
-			return opts, errors.New("usage: build-haks [--hak <hak-name> ...] [--archive <archive-name> ...] [--source-manifest <path>] [--plan-only] [--skip-music] [--music-dataset <id> ...] [--quiet|--verbose|--debug]")
+			return opts, errors.New("usage: build-haks [--hak <hak-name> ...] [--archive <archive-name> ...] [--source-manifest <path>] [--content-addressed-root <path>] [--plan-only] [--skip-music] [--music-dataset <id> ...] [--quiet|--verbose|--debug]")
 		case "--hak":
 			index++
 			if index >= len(args) {
@@ -1109,6 +1111,12 @@ func parseBuildHAKArgs(args []string) (buildHAKOptions, error) {
 				return opts, errors.New("--source-manifest requires a value")
 			}
 			opts.sourceManifest = args[index]
+		case "--content-addressed-root":
+			index++
+			if index >= len(args) {
+				return opts, errors.New("--content-addressed-root requires a value")
+			}
+			opts.contentAddressedRoot = args[index]
 		default:
 			if value, ok, err := requireInlineFlagValue(arg, "--hak"); ok || err != nil {
 				if err != nil {
@@ -1131,6 +1139,13 @@ func parseBuildHAKArgs(args []string) (buildHAKOptions, error) {
 				opts.sourceManifest = value
 				continue
 			}
+			if value, ok, err := requireInlineFlagValue(arg, "--content-addressed-root"); ok || err != nil {
+				if err != nil {
+					return opts, err
+				}
+				opts.contentAddressedRoot = value
+				continue
+			}
 			if value, ok, err := requireInlineFlagValue(arg, "--music-dataset"); ok || err != nil {
 				if err != nil {
 					return opts, err