task 4

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

internal/app/app_test.go

@@ -11,6 +11,48 @@ import (
 	"git.westgate.pw/ShadowsOverWestgate/sow-tools/internal/pipeline"
 )
 
+func TestParseBuildHAKArgsContentAddressedRoot(t *testing.T) {
+	tests := []struct {
+		name string
+		args []string
+		want string
+	}{
+		{
+			name: "separated",
+			args: []string{"--content-addressed-root", "/var/cache/blobs"},
+			want: "/var/cache/blobs",
+		},
+		{
+			name: "inline",
+			args: []string{"--content-addressed-root=/var/cache/blobs"},
+			want: "/var/cache/blobs",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			opts, err := parseBuildHAKArgs(tt.args)
+			if err != nil {
+				t.Fatalf("parse build-haks args: %v", err)
+			}
+			if opts.contentAddressedRoot != tt.want {
+				t.Fatalf("content-addressed root = %q, want %q", opts.contentAddressedRoot, tt.want)
+			}
+		})
+	}
+}
+
+func TestParseBuildHAKArgsHelpListsContentAddressedRoot(t *testing.T) {
+	_, err := parseBuildHAKArgs([]string{"--help"})
+	if err == nil {
+		t.Fatal("expected help usage error")
+	}
+	const want = "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]"
+	if err.Error() != want {
+		t.Fatalf("help usage = %q, want %q", err.Error(), want)
+	}
+}
+
 func TestRunBuildTopPackageUsesCachedCompiledOutputs(t *testing.T) {
 	root := t.TempDir()
 	mkdirAll(t, filepath.Join(root, "build"))