Split operator helper implementations by command responsibility

internal/app/operator_artifacts_list.go

@@ -0,0 +1,39 @@
+package app
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"strings"
+)
+
+// ArtifactsList lists effective artifact sources.
+func ArtifactsList(ctx context.Context, args []string, out io.Writer) error {
+	fs := flag.NewFlagSet("artifacts list", flag.ContinueOnError)
+	fs.SetOutput(io.Discard)
+	var flags commonConfigFlags
+	var remote bool
+	addCommonConfigFlags(fs, &flags)
+	fs.BoolVar(&remote, "remote", false, "inspect remote publish availability")
+	if err := parseSessionAwareFlags("artifacts list", fs, args, &flags.sessionID); err != nil {
+		return err
+	}
+	if strings.TrimSpace(flags.sessionID) == "" {
+		return fmt.Errorf("artifacts list: session_id is required")
+	}
+	cfg, store, locks, _, err := loadHelperContext(ctx, flags, remote)
+	if err != nil {
+		return fmt.Errorf("artifacts list: %w", err)
+	}
+	catalog, err := buildHelperArtifactCatalog(cfg)
+	if err != nil {
+		return fmt.Errorf("artifacts list: %w", err)
+	}
+	publishedRemoteState := map[string]string{}
+	if remote && store != nil {
+		publishedRemoteState = remotePublishedOutputAvailability(ctx, cfg, store, catalog)
+	}
+	writeArtifactList(out, cfg, catalog, locks, publishedRemoteState)
+	return nil
+}