Implement dandi:files extractor

datalad_registry/conf.py

@@ -53,7 +53,7 @@ class BaseConfig(OperationConfig):
         "bids_dataset",
         # === DANDI related extractors ===
         "dandi",
-        # "dandi:files",  # Let's not activate this yet by default
+        "dandi:files",
     ]
 
     # === worker, Celery, related configuration  ===

datalad_registry/tasks/utils/builtin_meta_extractors.py

@@ -1,6 +1,7 @@
 # This file specifies custom metadata extractors, for datalad_registry, and related
 # definitions.
 from collections.abc import Callable
+import json
 
 from datalad.distribution.dataset import require_dataset
 from yaml import load as yaml_load
@@ -81,8 +82,38 @@ def dlreg_dandi_files_meta_extract(url: RepoUrl) -> URLMetadata:
     :return: A `URLMetadata` object containing the extracted metadata ready
     :raises FileNotFoundError: If the `.dandi/assets.json` file is not found
                                at the dataset
+
+    Note: This function is meant to be called inside a Celery task for it requires
+          an active application context of the Flask app
+    Note: This function must be called with a RepoUrl object with a cache path, i.e.,
+          one that must have been processed already.
     """
-    raise NotImplementedError
+    name = "dandi:files"  # Name of this extractor
+    version = "0.0.1"  # Version of this extractor
+
+    assert url.cache_path_abs is not None, (
+        f"Encountered a RepoUrl with no cache path, "
+        f"with a processed flag set to {url.processed}"
+    )
+
+    with open(url.cache_path_abs / ".dandi/assets.json") as f:
+        extracted_metadata = json.load(f)
+
+    ds = require_dataset(
+        url.cache_path_abs,
+        check_installed=True,
+        purpose="dandiset files metadata extraction",
+    )
+
+    return URLMetadata(
+        dataset_describe=get_head_describe(ds),
+        dataset_version=ds.repo.get_hexsha(),
+        extractor_name=name,
+        extractor_version=version,
+        extraction_parameter={},
+        extracted_metadata=extracted_metadata,
+        url=url,
+    )
 
 
 # A mapping from the names of the supported extractors to the functions

datalad_registry/tests/test__init__.py

@@ -82,13 +82,9 @@ def test_configuration(
             },
         }
 
-        default_metadata_extractors = [
-            "metalad_core",
-            "metalad_studyminimeta",
-            "datacite_gin",
-            "bids_dataset",
-            "dandi",
-        ]
+        default_metadata_extractors = BaseConfig.__fields__[
+            "DATALAD_REGISTRY_METADATA_EXTRACTORS"
+        ].default
 
         def mock_compile_config_from_env(*_args, **_kwargs):
             # noinspection PyTypeChecker

datalad_registry/tests/test_tasks/test_utils/test_builtin_meta_extractors.py

@@ -88,6 +88,31 @@ def test_no_document(self, dandi_repo_url_with_up_to_date_clone, flask_app):
                 dlreg_dandi_meta_extract(repo_url)
 
 
+class TestDlregDandiFilesMetaExtract:
+    def test_valid_input(self, dandi_repo_url_with_up_to_date_clone, flask_app):
+        """
+        Test the case that the argument `url` is a valid `RepoUrl` object with a
+        valid corresponding dandi dataset in the local cache
+        """
+        from datalad_registry.tasks.utils.builtin_meta_extractors import (
+            dlreg_dandi_files_meta_extract,
+        )
+
+        repo_url = dandi_repo_url_with_up_to_date_clone[0]
+        ds_clone = dandi_repo_url_with_up_to_date_clone[2]
+
+        with flask_app.app_context():
+            url_metadata = dlreg_dandi_files_meta_extract(repo_url)
+
+        assert url_metadata.dataset_describe == get_head_describe(ds_clone)
+        assert url_metadata.dataset_version == ds_clone.repo.get_hexsha()
+        assert url_metadata.extractor_name == "dandi:files"
+        assert url_metadata.extractor_version == "0.0.1"
+        assert url_metadata.extraction_parameter == {}
+        assert url_metadata.extracted_metadata == [{"asset_id": "123"}]
+        assert url_metadata.url == repo_url
+
+
 class TestDlregMetaExtract:
     def test_unsupported_extractor(
         self, dandi_repo_url_with_up_to_date_clone, flask_app

docker-compose.read-only.yml

@@ -10,7 +10,7 @@ services:
       read-only-db:
         condition: service_healthy
     ports:
-      - "${READ_ONLY_WEB_PUBLISH_PORT}:5000"
+      - "${WEB_PORT_AT_HOST}:5000"
     environment:
       FLASK_APP: "datalad_registry:create_app"
 

docker-compose.test.yml

@@ -6,8 +6,8 @@ services:
       RABBITMQ_DEFAULT_USER: "${RABBITMQ_DEFAULT_USER}"
       RABBITMQ_DEFAULT_PASS: "${RABBITMQ_DEFAULT_PASS}"
     ports:
-      - "127.0.0.1:35672:5672"
-      - "127.0.0.1:45672:15672"
+      - "127.0.0.1:${BROKER_PORT_AT_HOST}:5672"
+      - "127.0.0.1:${BROKER_MANAGEMENT_PORT_AT_HOST}:15672"
     userns_mode: "keep-id"  # This has an effect only after podman-compose 1.0.3 possibly
       # See https://github.com/containers/podman-compose/issues/166
       # for details.
@@ -23,7 +23,7 @@ services:
   backend:
     image: docker.io/redis:7
     ports:
-      - "127.0.0.1:36379:6379"
+      - "127.0.0.1:${BACKEND_PORT_AT_HOST}:6379"
 
   db:
     image: docker.io/postgres:15
@@ -33,7 +33,7 @@ services:
       POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
       POSTGRES_INITDB_ARGS: --encoding utf8 --locale C
     ports:
-      - "127.0.0.1:35432:5432"
+      - "127.0.0.1:${DB_PORT_AT_HOST}:5432"
     healthcheck:
       test: [ "CMD", "pg_isready", "-U", "${POSTGRES_USER}", "-d", "${POSTGRES_DB}", "-q" ]
       interval: 30s

docker-compose.yml

@@ -12,7 +12,7 @@ services:
       db:
         condition: service_healthy
     ports:
-      - "5000:5000"
+      - "${WEB_PORT_AT_HOST}:5000"
     environment: &env
       FLASK_APP: "datalad_registry:create_app"
 
@@ -89,7 +89,7 @@ services:
       FLOWER_NATURAL_TIME: "True"
       FLOWER_BASIC_AUTH: "$FLOWER_BASIC_AUTH"
     ports:
-      - "127.0.0.1:5555:5555"
+      - "127.0.0.1:${MONITOR_PORT_AT_HOST}:5555"
     command: [ "/sbin/my_init", "--", "celery", "-A", "datalad_registry.make_celery:celery_app", "flower" ]
     volumes:
       - ${MONITOR_PATH_AT_HOST}/data:/data
@@ -108,8 +108,8 @@ services:
       RABBITMQ_DEFAULT_PASS: "${RABBITMQ_DEFAULT_PASS}"
       RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS: "-rabbit consumer_timeout 43200000"  # 12 hours in milliseconds
     ports:
-      - "127.0.0.1:5672:5672"
-      - "127.0.0.1:15672:15672"
+      - "127.0.0.1:${BROKER_PORT_AT_HOST}:5672"
+      - "127.0.0.1:${BROKER_MANAGEMENT_PORT_AT_HOST}:15672"
     userns_mode: "keep-id"  # This has an effect only after podman-compose 1.0.3 possibly
       # See https://github.com/containers/podman-compose/issues/166
       # for details.
@@ -128,7 +128,7 @@ services:
   backend:
     image: docker.io/redis:7
     ports:
-      - "127.0.0.1:6379:6379"
+      - "127.0.0.1:${BACKEND_PORT_AT_HOST}:6379"
 
   db:
     image: docker.io/postgres:15
@@ -138,7 +138,7 @@ services:
       POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
       POSTGRES_INITDB_ARGS: --encoding utf8 --locale C
     ports:
-      - "5432:5432"
+      - "${DB_PORT_AT_HOST}:5432"
     userns_mode: "keep-id"  # This has an effect only after podman-compose 1.0.3 possibly
       # See https://github.com/containers/podman-compose/issues/166
       # for details.

env.test

@@ -5,6 +5,12 @@
 # within the same host.
 COMPOSE_PROJECT_NAME=dl-registry-test
 
+# Ports of the services used for testing at host
+BROKER_PORT_AT_HOST=35672
+BROKER_MANAGEMENT_PORT_AT_HOST=45672
+BACKEND_PORT_AT_HOST=36379
+DB_PORT_AT_HOST=35432
+
 # Variables related to the broker service
 RABBITMQ_DEFAULT_USER=tester
 RABBITMQ_DEFAULT_PASS=testpass

template.env

@@ -2,6 +2,9 @@
 # It is to be copied to a target file named `.env.dev` or `.env.prod`, and the target
 # file is to be modified (changing usernames, passwords, etc.).
 
+# The name of the Docker Compose project (stack)
+COMPOSE_PROJECT_NAME=datalad-registry
+
 # Bind mount paths at host
 WEB_PATH_AT_HOST=./services/web
 WORKER_PATH_AT_HOST=./services/worker
@@ -10,6 +13,14 @@ MONITOR_PATH_AT_HOST=./services/monitor
 BROKER_PATH_AT_HOST=./services/broker
 DB_PATH_AT_HOST=./services/db
 
+# Ports of the services at host
+WEB_PORT_AT_HOST=5000
+MONITOR_PORT_AT_HOST=5555
+BROKER_PORT_AT_HOST=5672
+BROKER_MANAGEMENT_PORT_AT_HOST=15672
+BACKEND_PORT_AT_HOST=6379
+DB_PORT_AT_HOST=5432
+
 DATALAD_REGISTRY_OPERATION_MODE=DEVELOPMENT  # or PRODUCTION
 
 # Variables related to the broker service

template.env.read-only

@@ -9,14 +9,13 @@ COMPOSE_PROJECT_NAME=dl-registry-read-only
 WEB_PATH_AT_HOST=./services/read-only-web
 DB_PATH_AT_HOST=./services/read-only-db
 
+# Ports of the service(s) at host
+WEB_PORT_AT_HOST=5000
+
 # Variables related to the db service
 POSTGRES_DB=pgdb
 POSTGRES_USER=pguser
 POSTGRES_PASSWORD=pgpass
 # (Make sure that user name and password characters do not need to be escaped for URL format
 #  or to escape them properly if they do)
 SQLALCHEMY_DATABASE_URI="postgresql+psycopg2://${POSTGRES_USER}:${POSTGRES_PASSWORD}@read-only-db:5432/${POSTGRES_DB}"
-
-
-# The port on the host to which the read-only-web service will be bound
-READ_ONLY_WEB_PUBLISH_PORT=5000

tools/run_dandi_files_extractor.py

@@ -0,0 +1,19 @@
+# This script initiates Celery tasks to run the `dandi:files` on each processed repo.
+
+from sqlalchemy import select
+
+from datalad_registry import create_app
+from datalad_registry.models import RepoUrl, db
+from datalad_registry.tasks import extract_ds_meta
+
+flask_app = create_app()
+
+with flask_app.app_context():
+
+    # Get the IDs of the processed repo URLs
+    processed_url_ids = (
+        db.session.execute(select(RepoUrl.id).filter(RepoUrl.processed)).scalars().all()
+    )
+
+    for url_id in processed_url_ids:
+        extract_ds_meta.delay(url_id, "dandi:files")