fix: stage selected standalone archives once

scripts/stage_npm_packages.py

@@ -143,18 +143,20 @@ def stage_standalone_installer_archives(
     release_version: str,
     vendor_src: Path,
     output_dir: Path,
+    packages: list[str],
 ) -> None:
-    run_command(
-        [
-            str(STAGE_STANDALONE_INSTALLER_ARCHIVES),
-            "--release-version",
-            release_version,
-            "--vendor-src",
-            str(vendor_src),
-            "--output-dir",
-            str(output_dir),
-        ]
-    )
+    cmd = [
+        str(STAGE_STANDALONE_INSTALLER_ARCHIVES),
+        "--release-version",
+        release_version,
+        "--vendor-src",
+        str(vendor_src),
+        "--output-dir",
+        str(output_dir),
+    ]
+    for package in packages:
+        cmd.extend(["--package", package])
+    run_command(cmd)
 
 
 def tarball_name_for_package(package: str, version: str) -> str:
@@ -226,6 +228,14 @@ def main() -> int:
                     "--standalone-output-dir requires staged native binaries, but no selected "
                     "package installed native components."
                 )
+            standalone_packages = [
+                package for package in packages if package in CODEX_PLATFORM_PACKAGES
+            ]
+            if not standalone_packages:
+                raise RuntimeError(
+                    "--standalone-output-dir requires at least one selected Codex platform "
+                    "package."
+                )
 
             standalone_output_dir = args.standalone_output_dir
             standalone_output_dir.mkdir(parents=True, exist_ok=True)
@@ -233,6 +243,7 @@ def main() -> int:
                 args.release_version,
                 vendor_src,
                 standalone_output_dir,
+                standalone_packages,
             )
             final_messages.append(
                 f"Staged standalone installer archives in {standalone_output_dir}"

scripts/stage_standalone_installer_archives.py

@@ -41,6 +41,16 @@ def parse_args() -> argparse.Namespace:
         default=REPO_ROOT / "dist" / "installer",
         help="Directory where standalone archives should be written.",
     )
+    parser.add_argument(
+        "--package",
+        dest="packages",
+        action="append",
+        choices=sorted(CODEX_PLATFORM_PACKAGES),
+        help=(
+            "Codex platform package to stage. May be provided multiple times. "
+            "Defaults to all platform packages."
+        ),
+    )
     return parser.parse_args()
 
 
@@ -85,7 +95,7 @@ def write_archive(staging_dir: Path, output_path: Path) -> None:
     output_path.parent.mkdir(parents=True, exist_ok=True)
     with tarfile.open(output_path, "w:gz") as archive:
         for path in sorted(staging_dir.rglob("*")):
-            archive.add(path, arcname=path.relative_to(staging_dir))
+            archive.add(path, arcname=path.relative_to(staging_dir), recursive=False)
 
 
 def main() -> int:
@@ -94,7 +104,8 @@ def main() -> int:
     output_dir = args.output_dir.resolve()
     output_dir.mkdir(parents=True, exist_ok=True)
 
-    for package in sorted(CODEX_PLATFORM_PACKAGES):
+    packages = args.packages or sorted(CODEX_PLATFORM_PACKAGES)
+    for package in sorted(set(packages)):
         package_config = CODEX_PLATFORM_PACKAGES[package]
         platform_tag = package_config["npm_tag"]
         target = package_config["target_triple"]