feat(js): add JavaScript instrumentation watcher and initial registry

ecosystem-automation/js-instrumentation-watcher/pyproject.toml

@@ -0,0 +1,44 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[project]
+name = "js-instrumentation-watcher"
+version = "0.1.0"
+description = "Automation tool for watching and collecting OpenTelemetry JavaScript instrumentation metadata"
+requires-python = ">=3.11"
+dependencies = [
+    "PyYAML>=6.0.1",
+    "GitPython>=3.1.40",
+    "semantic-version>=2.10.0",
+    "watcher-common",
+]
+
+[project.scripts]
+js-instrumentation-watcher = "js_instrumentation_watcher.main:main"
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.0.0",
+    "pytest-cov>=4.1.0",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.uv.sources]
+watcher-common = { workspace = true }
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/js_instrumentation_watcher"]

ecosystem-automation/js-instrumentation-watcher/src/js_instrumentation_watcher/__init__.py

@@ -0,0 +1,14 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#

ecosystem-automation/js-instrumentation-watcher/src/js_instrumentation_watcher/__main__.py

@@ -0,0 +1,19 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from .main import main
+
+if __name__ == "__main__":
+    main()

ecosystem-automation/js-instrumentation-watcher/src/js_instrumentation_watcher/instrumentation_sync.py

@@ -0,0 +1,122 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Synchronization orchestration for JS instrumentation metadata."""
+
+import logging
+from pathlib import Path
+from typing import Any
+
+from .inventory_manager import InventoryManager
+from .package_parser import PackageParser
+from .package_scanner import PackageScanner
+
+logger = logging.getLogger(__name__)
+
+
+class InstrumentationSync:
+    """
+    Orchestrates synchronization of JS instrumentation metadata.
+
+    Walks the js-contrib repository, parses each instrumentation package,
+    and writes per-package versioned YAML to the registry.
+
+    Unlike the Java watcher which has a single release version, JS packages
+    version independently. Each package is stored at its own version:
+        ecosystem-registry/javascript/{package}/v{version}.yaml
+    """
+
+    def __init__(
+        self,
+        repo_path: Path,
+        inventory_manager: InventoryManager,
+    ):
+        """
+        Args:
+            repo_path: Path to the cloned opentelemetry-js-contrib repository
+            inventory_manager: Inventory manager for writing registry files
+        """
+        self.repo_path = repo_path
+        self.inventory_manager = inventory_manager
+        self.scanner = PackageScanner(repo_path)
+
+    def sync(self) -> dict[str, Any]:
+        """
+        Synchronize all JS instrumentation packages to the registry.
+
+        For each package:
+        - If the current version already exists in the registry, skip it
+        - Otherwise parse and write the metadata
+
+        Returns:
+            Summary dict with counts of new, skipped, and failed packages
+        """
+        summary: dict[str, Any] = {
+            "new": [],
+            "skipped": [],
+            "failed": [],
+        }
+
+        bundle_membership = self.scanner.load_bundle_membership()
+        logger.info("Loaded %d packages from auto-instrumentations-node", len(bundle_membership))
+
+        component_owners = self.scanner.load_component_owners()
+        logger.info("Loaded owners for %d components", len(component_owners))
+
+        packages = self.scanner.discover_packages()
+
+        for package_path in packages:
+            name = package_path.name
+            parser = PackageParser(
+                package_path=package_path,
+                bundle_membership=bundle_membership,
+                component_owners=component_owners,
+            )
+
+            try:
+                data = parser.parse()
+            except Exception as e:
+                logger.warning("Failed to parse %s: %s", name, e)
+                summary["failed"].append(name)
+                continue
+
+            if data is None:
+                logger.warning("No data parsed for %s — skipping", name)
+                summary["failed"].append(name)
+                continue
+
+            version = data.get("version", "")
+            if not version:
+                logger.warning("No version found for %s — skipping", name)
+                summary["failed"].append(name)
+                continue
+
+            if self.inventory_manager.version_exists(name, version):
+                logger.debug("Already tracked: %s v%s", name, version)
+                summary["skipped"].append(f"{name}@{version}")
+                continue
+
+            self.inventory_manager.save(name, version, data)
+            logger.info("Saved: %s v%s", name, version)
+            summary["new"].append(f"{name}@{version}")
+
+        logger.info(
+            "Sync complete — new: %d, skipped: %d, failed: %d",
+            len(summary["new"]),
+            len(summary["skipped"]),
+            len(summary["failed"]),
+        )
+
+        return summary

ecosystem-automation/js-instrumentation-watcher/src/js_instrumentation_watcher/inventory_manager.py

@@ -0,0 +1,91 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Inventory manager for JS instrumentation registry storage."""
+
+import logging
+from pathlib import Path
+
+import yaml
+
+logger = logging.getLogger(__name__)
+
+
+class InventoryManager:
+    """
+    Manages storage of JS instrumentation metadata in the registry.
+
+    Registry layout (per maintainer direction):
+        ecosystem-registry/javascript/{package-name}/v{version}.yaml
+
+    Each package is versioned independently — there is no single
+    aggregated version file like the Java watcher uses.
+    """
+
+    def __init__(self, registry_dir: str):
+        """
+        Args:
+            registry_dir: Base registry directory, e.g. 'ecosystem-registry/javascript'
+        """
+        self.registry_dir = Path(registry_dir)
+
+    def version_exists(self, package_name: str, version: str) -> bool:
+        """
+        Check if a specific package version already exists in the registry.
+
+        Args:
+            package_name: Package directory name, e.g. 'instrumentation-express'
+            version: Version string, e.g. '0.66.0'
+
+        Returns:
+            True if the version file exists
+        """
+        return self._version_path(package_name, version).exists()
+
+    def save(self, package_name: str, version: str, data: dict) -> None:
+        """
+        Save a package version to the registry.
+
+        Args:
+            package_name: Package directory name
+            version: Version string
+            data: Metadata dict to serialize as YAML
+        """
+        path = self._version_path(package_name, version)
+        path.parent.mkdir(parents=True, exist_ok=True)
+
+        with path.open("w") as f:
+            yaml.dump(
+                data,
+                f,
+                default_flow_style=False,
+                sort_keys=True,
+                allow_unicode=True,
+            )
+
+        logger.debug("Saved %s v%s to %s", package_name, version, path)
+
+    def _version_path(self, package_name: str, version: str) -> Path:
+        """
+        Build the path for a package version file.
+
+        Args:
+            package_name: Package directory name
+            version: Version string
+
+        Returns:
+            Path to the version YAML file
+        """
+        return self.registry_dir / package_name / f"v{version}.yaml"

ecosystem-automation/js-instrumentation-watcher/src/js_instrumentation_watcher/main.py

@@ -0,0 +1,52 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Entry point for the JS instrumentation watcher."""
+
+import logging
+import os
+
+from .instrumentation_sync import InstrumentationSync
+from .inventory_manager import InventoryManager
+from .repository_manager import JsContribRepositoryManager
+
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+)
+logger = logging.getLogger(__name__)
+
+REGISTRY_DIR = "ecosystem-registry/javascript"
+
+
+def main() -> None:
+    """Main entry point for the JS instrumentation watcher."""
+    base_dir = os.environ.get("JS_CONTRIB_REPOS_DIR", "tmp_repos")
+
+    logger.info("Starting JS instrumentation watcher...")
+
+    repo_manager = JsContribRepositoryManager(base_dir=base_dir)
+    repo_path = repo_manager.setup()
+
+    inventory_manager = InventoryManager(registry_dir=REGISTRY_DIR)
+
+    sync = InstrumentationSync(
+        repo_path=repo_path,
+        inventory_manager=inventory_manager,
+    )
+
+    summary = sync.sync()
+
+    logger.info("Sync complete: %s", summary)