diff --git a/swh/storage/db.py b/swh/storage/db.py index 4219a01e..3cc8cc06 100644 --- a/swh/storage/db.py +++ b/swh/storage/db.py @@ -1,950 +1,969 @@ # Copyright (C) 2015-2020 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information import random import select from swh.core.db import BaseDb from swh.core.db.db_utils import stored_procedure, jsonize from swh.core.db.db_utils import execute_values_generator from swh.model.model import SHA1_SIZE class Db(BaseDb): """Proxy to the SWH DB, with wrappers around stored procedures """ def mktemp_dir_entry(self, entry_type, cur=None): self._cursor(cur).execute('SELECT swh_mktemp_dir_entry(%s)', (('directory_entry_%s' % entry_type),)) @stored_procedure('swh_mktemp_revision') def mktemp_revision(self, cur=None): pass @stored_procedure('swh_mktemp_release') def mktemp_release(self, cur=None): pass @stored_procedure('swh_mktemp_snapshot_branch') def mktemp_snapshot_branch(self, cur=None): pass def register_listener(self, notify_queue, cur=None): """Register a listener for NOTIFY queue `notify_queue`""" self._cursor(cur).execute("LISTEN %s" % notify_queue) def listen_notifies(self, timeout): """Listen to notifications for `timeout` seconds""" if select.select([self.conn], [], [], timeout) == ([], [], []): return else: self.conn.poll() while self.conn.notifies: yield self.conn.notifies.pop(0) @stored_procedure('swh_content_add') def content_add_from_temp(self, cur=None): pass @stored_procedure('swh_directory_add') def directory_add_from_temp(self, cur=None): pass @stored_procedure('swh_skipped_content_add') def skipped_content_add_from_temp(self, cur=None): pass @stored_procedure('swh_revision_add') def revision_add_from_temp(self, cur=None): pass @stored_procedure('swh_release_add') def release_add_from_temp(self, cur=None): pass def content_update_from_temp(self, keys_to_update, cur=None): cur = self._cursor(cur) cur.execute("""select swh_content_update(ARRAY[%s] :: text[])""" % keys_to_update) content_get_metadata_keys = [ 'sha1', 'sha1_git', 'sha256', 'blake2s256', 'length', 'status'] content_add_keys = content_get_metadata_keys + ['ctime'] skipped_content_keys = [ 'sha1', 'sha1_git', 'sha256', 'blake2s256', 'length', 'reason', 'status', 'origin'] def content_get_metadata_from_sha1s(self, sha1s, cur=None): cur = self._cursor(cur) yield from execute_values_generator( cur, """ select t.sha1, %s from (values %%s) as t (sha1) inner join content using (sha1) """ % ', '.join(self.content_get_metadata_keys[1:]), ((sha1,) for sha1 in sha1s), ) def content_get_range(self, start, end, limit=None, cur=None): """Retrieve contents within range [start, end]. """ cur = self._cursor(cur) query = """select %s from content where %%s <= sha1 and sha1 <= %%s order by sha1 limit %%s""" % ', '.join(self.content_get_metadata_keys) cur.execute(query, (start, end, limit)) yield from cur content_hash_keys = ['sha1', 'sha1_git', 'sha256', 'blake2s256'] def content_missing_from_list(self, contents, cur=None): cur = self._cursor(cur) keys = ', '.join(self.content_hash_keys) equality = ' AND '.join( ('t.%s = c.%s' % (key, key)) for key in self.content_hash_keys ) yield from execute_values_generator( cur, """ SELECT %s FROM (VALUES %%s) as t(%s) WHERE NOT EXISTS ( SELECT 1 FROM content c WHERE %s ) """ % (keys, keys, equality), (tuple(c[key] for key in self.content_hash_keys) for c in contents) ) def content_missing_per_sha1(self, sha1s, cur=None): cur = self._cursor(cur) yield from execute_values_generator(cur, """ SELECT t.sha1 FROM (VALUES %s) AS t(sha1) WHERE NOT EXISTS ( SELECT 1 FROM content c WHERE c.sha1 = t.sha1 )""", ((sha1,) for sha1 in sha1s)) + def content_missing_per_sha1_git(self, contents, cur=None): + cur = self._cursor(cur) + + yield from execute_values_generator(cur, """ + SELECT t.sha1_git FROM (VALUES %s) AS t(sha1_git) + WHERE NOT EXISTS ( + SELECT 1 FROM content c WHERE c.sha1_git = t.sha1_git + )""", ((sha1,) for sha1 in contents)) + def skipped_content_missing(self, contents, cur=None): if not contents: return [] cur = self._cursor(cur) query = """SELECT * FROM (VALUES %s) AS t (%s) WHERE not exists (SELECT 1 FROM skipped_content s WHERE s.sha1 is not distinct from t.sha1 and s.sha1_git is not distinct from t.sha1_git and s.sha256 is not distinct from t.sha256);""" % \ ((', '.join('%s' for _ in contents)), ', '.join(self.content_hash_keys)) cur.execute(query, [tuple(cont[key] for key in self.content_hash_keys) for cont in contents]) yield from cur def snapshot_exists(self, snapshot_id, cur=None): """Check whether a snapshot with the given id exists""" cur = self._cursor(cur) cur.execute("""SELECT 1 FROM snapshot where id=%s""", (snapshot_id,)) return bool(cur.fetchone()) + def snapshot_missing_from_list(self, snapshots, cur=None): + cur = self._cursor(cur) + yield from execute_values_generator( + cur, """ + SELECT id FROM (VALUES %s) as t(id) + WHERE NOT EXISTS ( + SELECT 1 FROM snapshot d WHERE d.id = t.id + ) + """, ((id,) for id in snapshots)) + def snapshot_add(self, snapshot_id, cur=None): """Add a snapshot from the temporary table""" cur = self._cursor(cur) cur.execute("""SELECT swh_snapshot_add(%s)""", (snapshot_id,)) snapshot_count_cols = ['target_type', 'count'] def snapshot_count_branches(self, snapshot_id, cur=None): cur = self._cursor(cur) query = """\ SELECT %s FROM swh_snapshot_count_branches(%%s) """ % ', '.join(self.snapshot_count_cols) cur.execute(query, (snapshot_id,)) yield from cur snapshot_get_cols = ['snapshot_id', 'name', 'target', 'target_type'] def snapshot_get_by_id(self, snapshot_id, branches_from=b'', branches_count=None, target_types=None, cur=None): cur = self._cursor(cur) query = """\ SELECT %s FROM swh_snapshot_get_by_id(%%s, %%s, %%s, %%s :: snapshot_target[]) """ % ', '.join(self.snapshot_get_cols) cur.execute(query, (snapshot_id, branches_from, branches_count, target_types)) yield from cur def snapshot_get_by_origin_visit(self, origin_url, visit_id, cur=None): cur = self._cursor(cur) query = """\ SELECT snapshot FROM origin_visit INNER JOIN origin ON origin.id = origin_visit.origin WHERE origin.url=%s AND origin_visit.visit=%s; """ cur.execute(query, (origin_url, visit_id)) ret = cur.fetchone() if ret: return ret[0] def snapshot_get_random(self, cur=None): return self._get_random_row_from_table( 'snapshot', ['id'], 'id', cur) content_find_cols = ['sha1', 'sha1_git', 'sha256', 'blake2s256', 'length', 'ctime', 'status'] def content_find(self, sha1=None, sha1_git=None, sha256=None, blake2s256=None, cur=None): """Find the content optionally on a combination of the following checksums sha1, sha1_git, sha256 or blake2s256. Args: sha1: sha1 content git_sha1: the sha1 computed `a la git` sha1 of the content sha256: sha256 content blake2s256: blake2s256 content Returns: The tuple (sha1, sha1_git, sha256, blake2s256) if found or None. """ cur = self._cursor(cur) checksum_dict = {'sha1': sha1, 'sha1_git': sha1_git, 'sha256': sha256, 'blake2s256': blake2s256} where_parts = [] args = [] # Adds only those keys which have value other than None for algorithm in checksum_dict: if checksum_dict[algorithm] is not None: args.append(checksum_dict[algorithm]) where_parts.append(algorithm + '= %s') query = ' AND '.join(where_parts) cur.execute("""SELECT %s FROM content WHERE %s """ % (','.join(self.content_find_cols), query), args) content = cur.fetchall() return content def content_get_random(self, cur=None): return self._get_random_row_from_table( 'content', ['sha1_git'], 'sha1_git', cur) def directory_missing_from_list(self, directories, cur=None): cur = self._cursor(cur) yield from execute_values_generator( cur, """ SELECT id FROM (VALUES %s) as t(id) WHERE NOT EXISTS ( SELECT 1 FROM directory d WHERE d.id = t.id ) """, ((id,) for id in directories)) directory_ls_cols = ['dir_id', 'type', 'target', 'name', 'perms', 'status', 'sha1', 'sha1_git', 'sha256', 'length'] def directory_walk_one(self, directory, cur=None): cur = self._cursor(cur) cols = ', '.join(self.directory_ls_cols) query = 'SELECT %s FROM swh_directory_walk_one(%%s)' % cols cur.execute(query, (directory,)) yield from cur def directory_walk(self, directory, cur=None): cur = self._cursor(cur) cols = ', '.join(self.directory_ls_cols) query = 'SELECT %s FROM swh_directory_walk(%%s)' % cols cur.execute(query, (directory,)) yield from cur def directory_entry_get_by_path(self, directory, paths, cur=None): """Retrieve a directory entry by path. """ cur = self._cursor(cur) cols = ', '.join(self.directory_ls_cols) query = ( 'SELECT %s FROM swh_find_directory_entry_by_path(%%s, %%s)' % cols) cur.execute(query, (directory, paths)) data = cur.fetchone() if set(data) == {None}: return None return data def directory_get_random(self, cur=None): return self._get_random_row_from_table( 'directory', ['id'], 'id', cur) def revision_missing_from_list(self, revisions, cur=None): cur = self._cursor(cur) yield from execute_values_generator( cur, """ SELECT id FROM (VALUES %s) as t(id) WHERE NOT EXISTS ( SELECT 1 FROM revision r WHERE r.id = t.id ) """, ((id,) for id in revisions)) revision_add_cols = [ 'id', 'date', 'date_offset', 'date_neg_utc_offset', 'committer_date', 'committer_date_offset', 'committer_date_neg_utc_offset', 'type', 'directory', 'message', 'author_fullname', 'author_name', 'author_email', 'committer_fullname', 'committer_name', 'committer_email', 'metadata', 'synthetic', ] revision_get_cols = revision_add_cols + ['parents'] def origin_visit_add(self, origin, ts, type, cur=None): """Add a new origin_visit for origin origin at timestamp ts with status 'ongoing'. Args: origin: origin concerned by the visit ts: the date of the visit type: type of loader for the visit Returns: The new visit index step for that origin """ cur = self._cursor(cur) self._cursor(cur).execute('SELECT swh_origin_visit_add(%s, %s, %s)', (origin, ts, type)) return cur.fetchone()[0] def origin_visit_update(self, origin_id, visit_id, updates, cur=None): """Update origin_visit's status.""" cur = self._cursor(cur) update_cols = [] values = [] where = ['origin.id = origin_visit.origin', 'origin.url=%s', 'visit=%s'] where_values = [origin_id, visit_id] if 'status' in updates: update_cols.append('status=%s') values.append(updates.pop('status')) if 'metadata' in updates: update_cols.append('metadata=%s') values.append(jsonize(updates.pop('metadata'))) if 'snapshot' in updates: update_cols.append('snapshot=%s') values.append(updates.pop('snapshot')) assert not updates, 'Unknown fields: %r' % updates query = """UPDATE origin_visit SET {update_cols} FROM origin WHERE {where}""".format(**{ 'update_cols': ', '.join(update_cols), 'where': ' AND '.join(where) }) cur.execute(query, (*values, *where_values)) def origin_visit_upsert(self, origin, visit, date, type, status, metadata, snapshot, cur=None): # doing an extra query like this is way simpler than trying to join # the origin id in the query below origin_id = next(self.origin_id_get_by_url([origin])) cur = self._cursor(cur) query = """INSERT INTO origin_visit ({cols}) VALUES ({values}) ON CONFLICT ON CONSTRAINT origin_visit_pkey DO UPDATE SET {updates}""".format( cols=', '.join(self.origin_visit_get_cols), values=', '.join('%s' for col in self.origin_visit_get_cols), updates=', '.join('{0}=excluded.{0}'.format(col) for col in self.origin_visit_get_cols)) cur.execute( query, (origin_id, visit, date, type, status, metadata, snapshot)) origin_visit_get_cols = [ 'origin', 'visit', 'date', 'type', 'status', 'metadata', 'snapshot'] origin_visit_select_cols = [ 'origin.url AS origin', 'visit', 'date', 'origin_visit.type AS type', 'status', 'metadata', 'snapshot'] def origin_visit_get_all(self, origin_id, last_visit=None, limit=None, cur=None): """Retrieve all visits for origin with id origin_id. Args: origin_id: The occurrence's origin Yields: The occurrence's history visits """ cur = self._cursor(cur) if last_visit: extra_condition = 'and visit > %s' args = (origin_id, last_visit, limit) else: extra_condition = '' args = (origin_id, limit) query = """\ SELECT %s FROM origin_visit INNER JOIN origin ON origin.id = origin_visit.origin WHERE origin.url=%%s %s order by visit asc limit %%s""" % ( ', '.join(self.origin_visit_select_cols), extra_condition ) cur.execute(query, args) yield from cur def origin_visit_get(self, origin_id, visit_id, cur=None): """Retrieve information on visit visit_id of origin origin_id. Args: origin_id: the origin concerned visit_id: The visit step for that origin Returns: The origin_visit information """ cur = self._cursor(cur) query = """\ SELECT %s FROM origin_visit INNER JOIN origin ON origin.id = origin_visit.origin WHERE origin.url = %%s AND visit = %%s """ % (', '.join(self.origin_visit_select_cols)) cur.execute(query, (origin_id, visit_id)) r = cur.fetchall() if not r: return None return r[0] def origin_visit_find_by_date(self, origin, visit_date, cur=None): cur = self._cursor(cur) cur.execute( 'SELECT * FROM swh_visit_find_by_date(%s, %s)', (origin, visit_date)) r = cur.fetchall() if r: return r[0] def origin_visit_exists(self, origin_id, visit_id, cur=None): """Check whether an origin visit with the given ids exists""" cur = self._cursor(cur) query = "SELECT 1 FROM origin_visit where origin = %s AND visit = %s" cur.execute(query, (origin_id, visit_id)) return bool(cur.fetchone()) def origin_visit_get_latest( self, origin_id, allowed_statuses=None, require_snapshot=False, cur=None): """Retrieve the most recent origin_visit of the given origin, with optional filters. Args: origin_id: the origin concerned allowed_statuses: the visit statuses allowed for the returned visit require_snapshot (bool): If True, only a visit with a known snapshot will be returned. Returns: The origin_visit information, or None if no visit matches. """ cur = self._cursor(cur) query_parts = [ 'SELECT %s' % ', '.join(self.origin_visit_select_cols), 'FROM origin_visit', 'INNER JOIN origin ON origin.id = origin_visit.origin'] query_parts.append('WHERE origin.url = %s') if require_snapshot: query_parts.append('AND snapshot is not null') if allowed_statuses: query_parts.append( cur.mogrify('AND status IN %s', (tuple(allowed_statuses),)).decode()) query_parts.append('ORDER BY date DESC, visit DESC LIMIT 1') query = '\n'.join(query_parts) cur.execute(query, (origin_id,)) r = cur.fetchone() if not r: return None return r def origin_visit_get_random(self, type, cur=None): """Randomly select one origin visit that was full and in the last 3 months """ cur = self._cursor(cur) columns = ','.join(self.origin_visit_select_cols) query = f"""with visits as ( select * from origin_visit where origin_visit.status='full' and origin_visit.type=%s and origin_visit.date > now() - '3 months'::interval ) select {columns} from visits as origin_visit inner join origin on origin_visit.origin=origin.id where random() < 0.1 limit 1 """ cur.execute(query, (type, )) return cur.fetchone() @staticmethod def mangle_query_key(key, main_table): if key == 'id': return 't.id' if key == 'parents': return ''' ARRAY( SELECT rh.parent_id::bytea FROM revision_history rh WHERE rh.id = t.id ORDER BY rh.parent_rank )''' if '_' not in key: return '%s.%s' % (main_table, key) head, tail = key.split('_', 1) if (head in ('author', 'committer') and tail in ('name', 'email', 'id', 'fullname')): return '%s.%s' % (head, tail) return '%s.%s' % (main_table, key) def revision_get_from_list(self, revisions, cur=None): cur = self._cursor(cur) query_keys = ', '.join( self.mangle_query_key(k, 'revision') for k in self.revision_get_cols ) yield from execute_values_generator( cur, """ SELECT %s FROM (VALUES %%s) as t(id) LEFT JOIN revision ON t.id = revision.id LEFT JOIN person author ON revision.author = author.id LEFT JOIN person committer ON revision.committer = committer.id """ % query_keys, ((id,) for id in revisions)) def revision_log(self, root_revisions, limit=None, cur=None): cur = self._cursor(cur) query = """SELECT %s FROM swh_revision_log(%%s, %%s) """ % ', '.join(self.revision_get_cols) cur.execute(query, (root_revisions, limit)) yield from cur revision_shortlog_cols = ['id', 'parents'] def revision_shortlog(self, root_revisions, limit=None, cur=None): cur = self._cursor(cur) query = """SELECT %s FROM swh_revision_list(%%s, %%s) """ % ', '.join(self.revision_shortlog_cols) cur.execute(query, (root_revisions, limit)) yield from cur def revision_get_random(self, cur=None): return self._get_random_row_from_table( 'revision', ['id'], 'id', cur) def release_missing_from_list(self, releases, cur=None): cur = self._cursor(cur) yield from execute_values_generator( cur, """ SELECT id FROM (VALUES %s) as t(id) WHERE NOT EXISTS ( SELECT 1 FROM release r WHERE r.id = t.id ) """, ((id,) for id in releases)) object_find_by_sha1_git_cols = ['sha1_git', 'type'] def object_find_by_sha1_git(self, ids, cur=None): cur = self._cursor(cur) yield from execute_values_generator( cur, """ WITH t (sha1_git) AS (VALUES %s), known_objects as (( select id as sha1_git, 'release'::object_type as type, object_id from release r where exists (select 1 from t where t.sha1_git = r.id) ) union all ( select id as sha1_git, 'revision'::object_type as type, object_id from revision r where exists (select 1 from t where t.sha1_git = r.id) ) union all ( select id as sha1_git, 'directory'::object_type as type, object_id from directory d where exists (select 1 from t where t.sha1_git = d.id) ) union all ( select sha1_git as sha1_git, 'content'::object_type as type, object_id from content c where exists (select 1 from t where t.sha1_git = c.sha1_git) )) select t.sha1_git as sha1_git, k.type from t left join known_objects k on t.sha1_git = k.sha1_git """, ((id,) for id in ids) ) def stat_counters(self, cur=None): cur = self._cursor(cur) cur.execute('SELECT * FROM swh_stat_counters()') yield from cur def origin_add(self, url, cur=None): """Insert a new origin and return the new identifier.""" insert = """INSERT INTO origin (url) values (%s) RETURNING url""" cur.execute(insert, (url,)) return cur.fetchone()[0] origin_cols = ['url'] def origin_get_by_url(self, origins, cur=None): """Retrieve origin `(type, url)` from urls if found.""" cur = self._cursor(cur) query = """SELECT %s FROM (VALUES %%s) as t(url) LEFT JOIN origin ON t.url = origin.url """ % ','.join('origin.' + col for col in self.origin_cols) yield from execute_values_generator( cur, query, ((url,) for url in origins)) def origin_get_by_sha1(self, sha1s, cur=None): """Retrieve origin urls from sha1s if found.""" cur = self._cursor(cur) query = """SELECT %s FROM (VALUES %%s) as t(sha1) LEFT JOIN origin ON t.sha1 = digest(origin.url, 'sha1') """ % ','.join('origin.' + col for col in self.origin_cols) yield from execute_values_generator( cur, query, ((sha1,) for sha1 in sha1s)) def origin_id_get_by_url(self, origins, cur=None): """Retrieve origin `(type, url)` from urls if found.""" cur = self._cursor(cur) query = """SELECT id FROM (VALUES %s) as t(url) LEFT JOIN origin ON t.url = origin.url """ for row in execute_values_generator( cur, query, ((url,) for url in origins)): yield row[0] origin_get_range_cols = ['id', 'url'] def origin_get_range(self, origin_from=1, origin_count=100, cur=None): """Retrieve ``origin_count`` origins whose ids are greater or equal than ``origin_from``. Origins are sorted by id before retrieving them. Args: origin_from (int): the minimum id of origins to retrieve origin_count (int): the maximum number of origins to retrieve """ cur = self._cursor(cur) query = """SELECT %s FROM origin WHERE id >= %%s ORDER BY id LIMIT %%s """ % ','.join(self.origin_get_range_cols) cur.execute(query, (origin_from, origin_count)) yield from cur def _origin_query(self, url_pattern, count=False, offset=0, limit=50, regexp=False, with_visit=False, cur=None): """ Method factorizing query creation for searching and counting origins. """ cur = self._cursor(cur) if count: origin_cols = 'COUNT(*)' else: origin_cols = ','.join(self.origin_cols) query = """SELECT %s FROM origin WHERE """ if with_visit: query += """ EXISTS ( SELECT 1 FROM origin_visit INNER JOIN snapshot ON snapshot=snapshot.id WHERE origin=origin.id ) AND """ query += 'url %s %%s ' if not count: query += 'ORDER BY id OFFSET %%s LIMIT %%s' if not regexp: query = query % (origin_cols, 'ILIKE') query_params = ('%'+url_pattern+'%', offset, limit) else: query = query % (origin_cols, '~*') query_params = (url_pattern, offset, limit) if count: query_params = (query_params[0],) cur.execute(query, query_params) def origin_search(self, url_pattern, offset=0, limit=50, regexp=False, with_visit=False, cur=None): """Search for origins whose urls contain a provided string pattern or match a provided regular expression. The search is performed in a case insensitive way. Args: url_pattern (str): the string pattern to search for in origin urls offset (int): number of found origins to skip before returning results limit (int): the maximum number of found origins to return regexp (bool): if True, consider the provided pattern as a regular expression and returns origins whose urls match it with_visit (bool): if True, filter out origins with no visit """ self._origin_query(url_pattern, offset=offset, limit=limit, regexp=regexp, with_visit=with_visit, cur=cur) yield from cur def origin_count(self, url_pattern, regexp=False, with_visit=False, cur=None): """Count origins whose urls contain a provided string pattern or match a provided regular expression. The pattern search in origin urls is performed in a case insensitive way. Args: url_pattern (str): the string pattern to search for in origin urls regexp (bool): if True, consider the provided pattern as a regular expression and returns origins whose urls match it with_visit (bool): if True, filter out origins with no visit """ self._origin_query(url_pattern, count=True, regexp=regexp, with_visit=with_visit, cur=cur) return cur.fetchone()[0] release_add_cols = [ 'id', 'target', 'target_type', 'date', 'date_offset', 'date_neg_utc_offset', 'name', 'comment', 'synthetic', 'author_fullname', 'author_name', 'author_email', ] release_get_cols = release_add_cols def release_get_from_list(self, releases, cur=None): cur = self._cursor(cur) query_keys = ', '.join( self.mangle_query_key(k, 'release') for k in self.release_get_cols ) yield from execute_values_generator( cur, """ SELECT %s FROM (VALUES %%s) as t(id) LEFT JOIN release ON t.id = release.id LEFT JOIN person author ON release.author = author.id """ % query_keys, ((id,) for id in releases)) def release_get_random(self, cur=None): return self._get_random_row_from_table( 'release', ['id'], 'id', cur) def origin_metadata_add(self, origin, ts, provider, tool, metadata, cur=None): """ Add an origin_metadata for the origin at ts with provider, tool and metadata. Args: origin (int): the origin's id for which the metadata is added ts (datetime): time when the metadata was found provider (int): the metadata provider identifier tool (int): the tool's identifier used to extract metadata metadata (jsonb): the metadata retrieved at the time and location Returns: id (int): the origin_metadata unique id """ cur = self._cursor(cur) insert = """INSERT INTO origin_metadata (origin_id, discovery_date, provider_id, tool_id, metadata) SELECT id, %s, %s, %s, %s FROM origin WHERE url = %s""" cur.execute(insert, (ts, provider, tool, jsonize(metadata), origin)) origin_metadata_get_cols = ['origin_url', 'discovery_date', 'tool_id', 'metadata', 'provider_id', 'provider_name', 'provider_type', 'provider_url'] def origin_metadata_get_by(self, origin_url, provider_type=None, cur=None): """Retrieve all origin_metadata entries for one origin_url """ cur = self._cursor(cur) if not provider_type: query = '''SELECT %s FROM swh_origin_metadata_get_by_origin( %%s)''' % (','.join( self.origin_metadata_get_cols)) cur.execute(query, (origin_url, )) else: query = '''SELECT %s FROM swh_origin_metadata_get_by_provider_type( %%s, %%s)''' % (','.join( self.origin_metadata_get_cols)) cur.execute(query, (origin_url, provider_type)) yield from cur tool_cols = ['id', 'name', 'version', 'configuration'] @stored_procedure('swh_mktemp_tool') def mktemp_tool(self, cur=None): pass def tool_add_from_temp(self, cur=None): cur = self._cursor(cur) cur.execute("SELECT %s from swh_tool_add()" % ( ','.join(self.tool_cols), )) yield from cur def tool_get(self, name, version, configuration, cur=None): cur = self._cursor(cur) cur.execute('''select %s from tool where name=%%s and version=%%s and configuration=%%s''' % ( ','.join(self.tool_cols)), (name, version, configuration)) return cur.fetchone() metadata_provider_cols = ['id', 'provider_name', 'provider_type', 'provider_url', 'metadata'] def metadata_provider_add(self, provider_name, provider_type, provider_url, metadata, cur=None): """Insert a new provider and return the new identifier.""" cur = self._cursor(cur) insert = """INSERT INTO metadata_provider (provider_name, provider_type, provider_url, metadata) values (%s, %s, %s, %s) RETURNING id""" cur.execute(insert, (provider_name, provider_type, provider_url, jsonize(metadata))) return cur.fetchone()[0] def metadata_provider_get(self, provider_id, cur=None): cur = self._cursor(cur) cur.execute('''select %s from metadata_provider where id=%%s ''' % ( ','.join(self.metadata_provider_cols)), (provider_id, )) return cur.fetchone() def metadata_provider_get_by(self, provider_name, provider_url, cur=None): cur = self._cursor(cur) cur.execute('''select %s from metadata_provider where provider_name=%%s and provider_url=%%s''' % ( ','.join(self.metadata_provider_cols)), (provider_name, provider_url)) return cur.fetchone() def _get_random_row_from_table(self, table_name, cols, id_col, cur=None): random_sha1 = bytes(random.randint(0, 255) for _ in range(SHA1_SIZE)) cur = self._cursor(cur) query = ''' (SELECT {cols} FROM {table} WHERE {id_col} >= %s ORDER BY {id_col} LIMIT 1) UNION (SELECT {cols} FROM {table} WHERE {id_col} < %s ORDER BY {id_col} DESC LIMIT 1) LIMIT 1 '''.format(cols=', '.join(cols), table=table_name, id_col=id_col) cur.execute(query, (random_sha1, random_sha1)) row = cur.fetchone() if row: return row[0] diff --git a/swh/storage/storage.py b/swh/storage/storage.py index c94184dc..b74d31b8 100644 --- a/swh/storage/storage.py +++ b/swh/storage/storage.py @@ -1,2140 +1,2171 @@ # Copyright (C) 2015-2020 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information import copy import datetime import itertools import json from collections import defaultdict from concurrent.futures import ThreadPoolExecutor from contextlib import contextmanager from typing import Any, Dict, List, Optional import dateutil.parser import psycopg2 import psycopg2.pool from swh.core.api import remote_api_endpoint from swh.model.model import SHA1_SIZE from swh.model.hashutil import ALGORITHMS, hash_to_bytes, hash_to_hex from swh.objstorage import get_objstorage from swh.objstorage.exc import ObjNotFoundError try: from swh.journal.writer import get_journal_writer except ImportError: get_journal_writer = None # type: ignore # mypy limitation, see https://github.com/python/mypy/issues/1153 from . import converters from .common import db_transaction_generator, db_transaction from .db import Db from .exc import StorageDBError from .algos import diff from .metrics import timed, send_metric, process_metrics from .utils import get_partition_bounds_bytes # Max block size of contents to return BULK_BLOCK_CONTENT_LEN_MAX = 10000 EMPTY_SNAPSHOT_ID = hash_to_bytes('1a8893e6a86f444e8be8e7bda6cb34fb1735a00e') """Identifier for the empty snapshot""" class Storage(): """SWH storage proxy, encompassing DB and object storage """ def __init__(self, db, objstorage, min_pool_conns=1, max_pool_conns=10, journal_writer=None): """ Args: db_conn: either a libpq connection string, or a psycopg2 connection obj_root: path to the root of the object storage """ try: if isinstance(db, psycopg2.extensions.connection): self._pool = None self._db = Db(db) else: self._pool = psycopg2.pool.ThreadedConnectionPool( min_pool_conns, max_pool_conns, db ) self._db = None except psycopg2.OperationalError as e: raise StorageDBError(e) self.objstorage = get_objstorage(**objstorage) if journal_writer: if get_journal_writer is None: raise EnvironmentError( 'You need the swh.journal package to use the ' 'journal_writer feature') self.journal_writer = get_journal_writer(**journal_writer) else: self.journal_writer = None def get_db(self): if self._db: return self._db else: return Db.from_pool(self._pool) def put_db(self, db): if db is not self._db: db.put_conn() @contextmanager def db(self): db = None try: db = self.get_db() yield db finally: if db: self.put_db(db) @remote_api_endpoint('check_config') @timed @db_transaction() def check_config(self, *, check_write, db=None, cur=None): """Check that the storage is configured and ready to go.""" if not self.objstorage.check_config(check_write=check_write): return False # Check permissions on one of the tables if check_write: check = 'INSERT' else: check = 'SELECT' cur.execute( "select has_table_privilege(current_user, 'content', %s)", (check,) ) return cur.fetchone()[0] def _content_unique_key(self, hash, db): """Given a hash (tuple or dict), return a unique key from the aggregation of keys. """ keys = db.content_hash_keys if isinstance(hash, tuple): return hash return tuple([hash[k] for k in keys]) @staticmethod def _normalize_content(d): d = d.copy() if 'status' not in d: d['status'] = 'visible' if 'length' not in d: d['length'] = -1 return d @staticmethod def _validate_content(d): """Sanity checks on status / reason / length, that postgresql doesn't enforce.""" if d['status'] not in ('visible', 'absent', 'hidden'): raise ValueError('Invalid content status: {}'.format(d['status'])) if d['status'] != 'absent' and d.get('reason') is not None: raise ValueError( 'Must not provide a reason if content is not absent.') if d['length'] < -1: raise ValueError('Content length must be positive or -1.') def _filter_new_content(self, content, db=None, cur=None): """Sort contents into buckets 'with data' and 'without data', and filter out those already in the database.""" content_by_status = defaultdict(list) for d in content: content_by_status[d['status']].append(d) content_with_data = content_by_status['visible'] \ + content_by_status['hidden'] content_without_data = content_by_status['absent'] missing_content = set(self.content_missing(content_with_data, db=db, cur=cur)) missing_skipped = set(self._content_unique_key(hashes, db) for hashes in self.skipped_content_missing( content_without_data, db=db, cur=cur)) content_with_data = [ cont for cont in content_with_data if cont['sha1'] in missing_content] content_without_data = [ cont for cont in content_without_data if self._content_unique_key(cont, db) in missing_skipped] summary = { 'content:add': len(missing_content), 'skipped_content:add': len(missing_skipped), } return (content_with_data, content_without_data, summary) def _content_add_metadata(self, db, cur, content_with_data, content_without_data): """Add content to the postgresql database but not the object storage. """ if content_with_data: # create temporary table for metadata injection db.mktemp('content', cur) db.copy_to(content_with_data, 'tmp_content', db.content_add_keys, cur) # move metadata in place try: db.content_add_from_temp(cur) except psycopg2.IntegrityError as e: from . import HashCollision if e.diag.sqlstate == '23505' and \ e.diag.table_name == 'content': constraint_to_hash_name = { 'content_pkey': 'sha1', 'content_sha1_git_idx': 'sha1_git', 'content_sha256_idx': 'sha256', } colliding_hash_name = constraint_to_hash_name \ .get(e.diag.constraint_name) raise HashCollision(colliding_hash_name) from None else: raise if content_without_data: content_without_data = \ [cont.copy() for cont in content_without_data] origin_ids = db.origin_id_get_by_url( [cont.get('origin') for cont in content_without_data], cur=cur) for (cont, origin_id) in zip(content_without_data, origin_ids): if 'origin' in cont: cont['origin'] = origin_id db.mktemp('skipped_content', cur) db.copy_to(content_without_data, 'tmp_skipped_content', db.skipped_content_keys, cur) # move metadata in place db.skipped_content_add_from_temp(cur) @remote_api_endpoint('content/add') @timed @process_metrics @db_transaction() def content_add(self, content, db=None, cur=None): """Add content blobs to the storage Note: in case of DB errors, objects might have already been added to the object storage and will not be removed. Since addition to the object storage is idempotent, that should not be a problem. Args: contents (iterable): iterable of dictionaries representing individual pieces of content to add. Each dictionary has the following keys: - data (bytes): the actual content - length (int): content length (default: -1) - one key for each checksum algorithm in :data:`swh.model.hashutil.ALGORITHMS`, mapped to the corresponding checksum - status (str): one of visible, hidden, absent - reason (str): if status = absent, the reason why - origin (int): if status = absent, the origin we saw the content in Raises: In case of errors, nothing is stored in the db (in the objstorage, it could though). The following exceptions can occur: - HashCollision in case of collision - Any other exceptions raise by the db Returns: Summary dict with the following key and associated values: content:add: New contents added content:add:bytes: Sum of the contents' length data skipped_content:add: New skipped contents (no data) added """ content = [dict(c.items()) for c in content] # semi-shallow copy now = datetime.datetime.now(tz=datetime.timezone.utc) for item in content: item['ctime'] = now content = [self._normalize_content(c) for c in content] for c in content: self._validate_content(c) (content_with_data, content_without_data, summary) = \ self._filter_new_content(content, db, cur) if self.journal_writer: for item in content_with_data: if 'data' in item: item = item.copy() del item['data'] self.journal_writer.write_addition('content', item) for item in content_without_data: self.journal_writer.write_addition('content', item) def add_to_objstorage(): """Add to objstorage the new missing_content Returns: Sum of all the content's data length pushed to the objstorage. Content present twice is only sent once. """ content_bytes_added = 0 data = {} for cont in content_with_data: if cont['sha1'] not in data: data[cont['sha1']] = cont['data'] content_bytes_added += max(0, cont['length']) # FIXME: Since we do the filtering anyway now, we might as # well make the objstorage's add_batch call return what we # want here (real bytes added)... that'd simplify this... self.objstorage.add_batch(data) return content_bytes_added with ThreadPoolExecutor(max_workers=1) as executor: added_to_objstorage = executor.submit(add_to_objstorage) self._content_add_metadata( db, cur, content_with_data, content_without_data) # Wait for objstorage addition before returning from the # transaction, bubbling up any exception content_bytes_added = added_to_objstorage.result() summary['content:add:bytes'] = content_bytes_added return summary @remote_api_endpoint('content/update') @timed @db_transaction() def content_update(self, content, keys=[], db=None, cur=None): """Update content blobs to the storage. Does nothing for unknown contents or skipped ones. Args: content (iterable): iterable of dictionaries representing individual pieces of content to update. Each dictionary has the following keys: - data (bytes): the actual content - length (int): content length (default: -1) - one key for each checksum algorithm in :data:`swh.model.hashutil.ALGORITHMS`, mapped to the corresponding checksum - status (str): one of visible, hidden, absent keys (list): List of keys (str) whose values needs an update, e.g., new hash column """ # TODO: Add a check on input keys. How to properly implement # this? We don't know yet the new columns. if self.journal_writer: raise NotImplementedError( 'content_update is not yet support with a journal_writer.') db.mktemp('content', cur) select_keys = list(set(db.content_get_metadata_keys).union(set(keys))) db.copy_to(content, 'tmp_content', select_keys, cur) db.content_update_from_temp(keys_to_update=keys, cur=cur) @remote_api_endpoint('content/add_metadata') @timed @process_metrics @db_transaction() def content_add_metadata(self, content, db=None, cur=None): """Add content metadata to the storage (like `content_add`, but without inserting to the objstorage). Args: content (iterable): iterable of dictionaries representing individual pieces of content to add. Each dictionary has the following keys: - length (int): content length (default: -1) - one key for each checksum algorithm in :data:`swh.model.hashutil.ALGORITHMS`, mapped to the corresponding checksum - status (str): one of visible, hidden, absent - reason (str): if status = absent, the reason why - origin (int): if status = absent, the origin we saw the content in - ctime (datetime): time of insertion in the archive Returns: Summary dict with the following key and associated values: content:add: New contents added skipped_content:add: New skipped contents (no data) added """ content = [self._normalize_content(c) for c in content] for c in content: self._validate_content(c) (content_with_data, content_without_data, summary) = \ self._filter_new_content(content, db, cur) if self.journal_writer: for item in itertools.chain(content_with_data, content_without_data): assert 'data' not in content self.journal_writer.write_addition('content', item) self._content_add_metadata( db, cur, content_with_data, content_without_data) return summary @remote_api_endpoint('content/data') @timed def content_get(self, content): """Retrieve in bulk contents and their data. This generator yields exactly as many items than provided sha1 identifiers, but callers should not assume this will always be true. It may also yield `None` values in case an object was not found. Args: content: iterables of sha1 Yields: Dict[str, bytes]: Generates streams of contents as dict with their raw data: - sha1 (bytes): content id - data (bytes): content's raw data Raises: ValueError in case of too much contents are required. cf. BULK_BLOCK_CONTENT_LEN_MAX """ # FIXME: Make this method support slicing the `data`. if len(content) > BULK_BLOCK_CONTENT_LEN_MAX: raise ValueError( "Send at maximum %s contents." % BULK_BLOCK_CONTENT_LEN_MAX) for obj_id in content: try: data = self.objstorage.get(obj_id) except ObjNotFoundError: yield None continue yield {'sha1': obj_id, 'data': data} @remote_api_endpoint('content/range') @timed @db_transaction() def content_get_range(self, start, end, limit=1000, db=None, cur=None): """Retrieve contents within range [start, end] bound by limit. Note that this function may return more than one blob per hash. The limit is enforced with multiplicity (ie. two blobs with the same hash will count twice toward the limit). Args: **start** (bytes): Starting identifier range (expected smaller than end) **end** (bytes): Ending identifier range (expected larger than start) **limit** (int): Limit result (default to 1000) Returns: a dict with keys: - contents [dict]: iterable of contents in between the range. - next (bytes): There remains content in the range starting from this next sha1 """ if limit is None: raise ValueError('Development error: limit should not be None') contents = [] next_content = None for counter, content_row in enumerate( db.content_get_range(start, end, limit+1, cur)): content = dict(zip(db.content_get_metadata_keys, content_row)) if counter >= limit: # take the last commit for the next page starting from this next_content = content['sha1'] break contents.append(content) return { 'contents': contents, 'next': next_content, } @remote_api_endpoint('content/partition') @timed @db_transaction() def content_get_partition( self, partition_id: int, nb_partitions: int, limit: int = 1000, page_token: str = None, db=None, cur=None): """Splits contents into nb_partitions, and returns one of these based on partition_id (which must be in [0, nb_partitions-1]) There is no guarantee on how the partitioning is done, or the result order. Args: partition_id (int): index of the partition to fetch nb_partitions (int): total number of partitions to split into limit (int): Limit result (default to 1000) page_token (Optional[str]): opaque token used for pagination. Returns: a dict with keys: - contents (List[dict]): iterable of contents in the partition. - **next_page_token** (Optional[str]): opaque token to be used as `page_token` for retrieving the next page. if absent, there is no more pages to gather. """ if limit is None: raise ValueError('Development error: limit should not be None') (start, end) = get_partition_bounds_bytes( partition_id, nb_partitions, SHA1_SIZE) if page_token: start = hash_to_bytes(page_token) if end is None: end = b'\xff'*SHA1_SIZE result = self.content_get_range(start, end, limit) result2 = { 'contents': result['contents'], 'next_page_token': None, } if result['next']: result2['next_page_token'] = hash_to_hex(result['next']) return result2 @remote_api_endpoint('content/metadata') @timed @db_transaction(statement_timeout=500) def content_get_metadata( self, contents: List[bytes], db=None, cur=None) -> Dict[bytes, List[Dict]]: """Retrieve content metadata in bulk Args: content: iterable of content identifiers (sha1) Returns: a dict with keys the content's sha1 and the associated value either the existing content's metadata or None if the content does not exist. """ result: Dict[bytes, List[Dict]] = {sha1: [] for sha1 in contents} for row in db.content_get_metadata_from_sha1s(contents, cur): content_meta = dict(zip(db.content_get_metadata_keys, row)) result[content_meta['sha1']].append(content_meta) return result @remote_api_endpoint('content/missing') @timed @db_transaction_generator() def content_missing(self, content, key_hash='sha1', db=None, cur=None): """List content missing from storage Args: content ([dict]): iterable of dictionaries whose keys are either 'length' or an item of :data:`swh.model.hashutil.ALGORITHMS`; mapped to the corresponding checksum (or length). key_hash (str): name of the column to use as hash id result (default: 'sha1') Returns: iterable ([bytes]): missing content ids (as per the key_hash column) Raises: TODO: an exception when we get a hash collision. """ keys = db.content_hash_keys if key_hash not in keys: raise ValueError("key_hash should be one of %s" % keys) key_hash_idx = keys.index(key_hash) if not content: return for obj in db.content_missing_from_list(content, cur): yield obj[key_hash_idx] @remote_api_endpoint('content/missing/sha1') @timed @db_transaction_generator() def content_missing_per_sha1(self, contents, db=None, cur=None): """List content missing from storage based only on sha1. Args: contents: Iterable of sha1 to check for absence. Returns: iterable: missing ids Raises: TODO: an exception when we get a hash collision. """ for obj in db.content_missing_per_sha1(contents, cur): yield obj[0] + @remote_api_endpoint('content/missing/sha1_git') + @timed + @db_transaction_generator() + def content_missing_per_sha1_git(self, contents, db=None, cur=None): + """List content missing from storage based only on sha1_git. + + Args: + contents (Iterable): An iterable of content id (sha1_git) + + Yields: + missing contents sha1_git + """ + for obj in db.content_missing_per_sha1_git(contents, cur): + yield obj[0] + @remote_api_endpoint('content/skipped/missing') @timed @db_transaction_generator() def skipped_content_missing(self, contents, db=None, cur=None): """List skipped_content missing from storage Args: content: iterable of dictionaries containing the data for each checksum algorithm. Returns: iterable: missing signatures """ for content in db.skipped_content_missing(contents, cur): yield dict(zip(db.content_hash_keys, content)) @remote_api_endpoint('content/present') @timed @db_transaction() def content_find(self, content, db=None, cur=None): """Find a content hash in db. Args: content: a dictionary representing one content hash, mapping checksum algorithm names (see swh.model.hashutil.ALGORITHMS) to checksum values Returns: a triplet (sha1, sha1_git, sha256) if the content exist or None otherwise. Raises: ValueError: in case the key of the dictionary is not sha1, sha1_git nor sha256. """ if not set(content).intersection(ALGORITHMS): raise ValueError('content keys must contain at least one of: ' 'sha1, sha1_git, sha256, blake2s256') contents = db.content_find(sha1=content.get('sha1'), sha1_git=content.get('sha1_git'), sha256=content.get('sha256'), blake2s256=content.get('blake2s256'), cur=cur) return [dict(zip(db.content_find_cols, content)) for content in contents] @remote_api_endpoint('content/get_random') @timed @db_transaction() def content_get_random(self, db=None, cur=None): """Finds a random content id. Returns: a sha1_git """ return db.content_get_random(cur) @remote_api_endpoint('directory/add') @timed @process_metrics @db_transaction() def directory_add(self, directories, db=None, cur=None): """Add directories to the storage Args: directories (iterable): iterable of dictionaries representing the individual directories to add. Each dict has the following keys: - id (sha1_git): the id of the directory to add - entries (list): list of dicts for each entry in the directory. Each dict has the following keys: - name (bytes) - type (one of 'file', 'dir', 'rev'): type of the directory entry (file, directory, revision) - target (sha1_git): id of the object pointed at by the directory entry - perms (int): entry permissions Returns: Summary dict of keys with associated count as values: directory:add: Number of directories actually added """ directories = list(directories) summary = {'directory:add': 0} dirs = set() dir_entries = { 'file': defaultdict(list), 'dir': defaultdict(list), 'rev': defaultdict(list), } for cur_dir in directories: dir_id = cur_dir['id'] dirs.add(dir_id) for src_entry in cur_dir['entries']: entry = src_entry.copy() entry['dir_id'] = dir_id if entry['type'] not in ('file', 'dir', 'rev'): raise ValueError( 'Entry type must be file, dir, or rev; not %s' % entry['type']) dir_entries[entry['type']][dir_id].append(entry) dirs_missing = set(self.directory_missing(dirs, db=db, cur=cur)) if not dirs_missing: return summary if self.journal_writer: self.journal_writer.write_additions( 'directory', (dir_ for dir_ in directories if dir_['id'] in dirs_missing)) # Copy directory ids dirs_missing_dict = ({'id': dir} for dir in dirs_missing) db.mktemp('directory', cur) db.copy_to(dirs_missing_dict, 'tmp_directory', ['id'], cur) # Copy entries for entry_type, entry_list in dir_entries.items(): entries = itertools.chain.from_iterable( entries_for_dir for dir_id, entries_for_dir in entry_list.items() if dir_id in dirs_missing) db.mktemp_dir_entry(entry_type) db.copy_to( entries, 'tmp_directory_entry_%s' % entry_type, ['target', 'name', 'perms', 'dir_id'], cur, ) # Do the final copy db.directory_add_from_temp(cur) summary['directory:add'] = len(dirs_missing) return summary @remote_api_endpoint('directory/missing') @timed @db_transaction_generator() def directory_missing(self, directories, db=None, cur=None): """List directories missing from storage Args: directories (iterable): an iterable of directory ids Yields: missing directory ids """ for obj in db.directory_missing_from_list(directories, cur): yield obj[0] @remote_api_endpoint('directory/ls') @timed @db_transaction_generator(statement_timeout=20000) def directory_ls(self, directory, recursive=False, db=None, cur=None): """Get entries for one directory. Args: - directory: the directory to list entries from. - recursive: if flag on, this list recursively from this directory. Returns: List of entries for such directory. If `recursive=True`, names in the path of a dir/file not at the root are concatenated with a slash (`/`). """ if recursive: res_gen = db.directory_walk(directory, cur=cur) else: res_gen = db.directory_walk_one(directory, cur=cur) for line in res_gen: yield dict(zip(db.directory_ls_cols, line)) @remote_api_endpoint('directory/path') @timed @db_transaction(statement_timeout=2000) def directory_entry_get_by_path(self, directory, paths, db=None, cur=None): """Get the directory entry (either file or dir) from directory with path. Args: - directory: sha1 of the top level directory - paths: path to lookup from the top level directory. From left (top) to right (bottom). Returns: The corresponding directory entry if found, None otherwise. """ res = db.directory_entry_get_by_path(directory, paths, cur) if res: return dict(zip(db.directory_ls_cols, res)) @remote_api_endpoint('directory/get_random') @timed @db_transaction() def directory_get_random(self, db=None, cur=None): """Finds a random directory id. Returns: a sha1_git """ return db.directory_get_random(cur) @remote_api_endpoint('revision/add') @timed @process_metrics @db_transaction() def revision_add(self, revisions, db=None, cur=None): """Add revisions to the storage Args: revisions (Iterable[dict]): iterable of dictionaries representing the individual revisions to add. Each dict has the following keys: - **id** (:class:`sha1_git`): id of the revision to add - **date** (:class:`dict`): date the revision was written - **committer_date** (:class:`dict`): date the revision got added to the origin - **type** (one of 'git', 'tar'): type of the revision added - **directory** (:class:`sha1_git`): the directory the revision points at - **message** (:class:`bytes`): the message associated with the revision - **author** (:class:`Dict[str, bytes]`): dictionary with keys: name, fullname, email - **committer** (:class:`Dict[str, bytes]`): dictionary with keys: name, fullname, email - **metadata** (:class:`jsonb`): extra information as dictionary - **synthetic** (:class:`bool`): revision's nature (tarball, directory creates synthetic revision`) - **parents** (:class:`list[sha1_git]`): the parents of this revision date dictionaries have the form defined in :mod:`swh.model`. Returns: Summary dict of keys with associated count as values revision:add: New objects actually stored in db """ revisions = list(revisions) summary = {'revision:add': 0} revisions_missing = set(self.revision_missing( set(revision['id'] for revision in revisions), db=db, cur=cur)) if not revisions_missing: return summary db.mktemp_revision(cur) revisions_filtered = [ revision for revision in revisions if revision['id'] in revisions_missing] if self.journal_writer: self.journal_writer.write_additions('revision', revisions_filtered) revisions_filtered = map(converters.revision_to_db, revisions_filtered) parents_filtered = [] db.copy_to( revisions_filtered, 'tmp_revision', db.revision_add_cols, cur, lambda rev: parents_filtered.extend(rev['parents'])) db.revision_add_from_temp(cur) db.copy_to(parents_filtered, 'revision_history', ['id', 'parent_id', 'parent_rank'], cur) return {'revision:add': len(revisions_missing)} @remote_api_endpoint('revision/missing') @timed @db_transaction_generator() def revision_missing(self, revisions, db=None, cur=None): """List revisions missing from storage Args: revisions (iterable): revision ids Yields: missing revision ids """ if not revisions: return for obj in db.revision_missing_from_list(revisions, cur): yield obj[0] @remote_api_endpoint('revision') @timed @db_transaction_generator(statement_timeout=1000) def revision_get(self, revisions, db=None, cur=None): """Get all revisions from storage Args: revisions: an iterable of revision ids Returns: iterable: an iterable of revisions as dictionaries (or None if the revision doesn't exist) """ for line in db.revision_get_from_list(revisions, cur): data = converters.db_to_revision( dict(zip(db.revision_get_cols, line)) ) if not data['type']: yield None continue yield data @remote_api_endpoint('revision/log') @timed @db_transaction_generator(statement_timeout=2000) def revision_log(self, revisions, limit=None, db=None, cur=None): """Fetch revision entry from the given root revisions. Args: revisions: array of root revision to lookup limit: limitation on the output result. Default to None. Yields: List of revision log from such revisions root. """ for line in db.revision_log(revisions, limit, cur): data = converters.db_to_revision( dict(zip(db.revision_get_cols, line)) ) if not data['type']: yield None continue yield data @remote_api_endpoint('revision/shortlog') @timed @db_transaction_generator(statement_timeout=2000) def revision_shortlog(self, revisions, limit=None, db=None, cur=None): """Fetch the shortlog for the given revisions Args: revisions: list of root revisions to lookup limit: depth limitation for the output Yields: a list of (id, parents) tuples. """ yield from db.revision_shortlog(revisions, limit, cur) @remote_api_endpoint('revision/get_random') @timed @db_transaction() def revision_get_random(self, db=None, cur=None): """Finds a random revision id. Returns: a sha1_git """ return db.revision_get_random(cur) @remote_api_endpoint('release/add') @timed @process_metrics @db_transaction() def release_add(self, releases, db=None, cur=None): """Add releases to the storage Args: releases (Iterable[dict]): iterable of dictionaries representing the individual releases to add. Each dict has the following keys: - **id** (:class:`sha1_git`): id of the release to add - **revision** (:class:`sha1_git`): id of the revision the release points to - **date** (:class:`dict`): the date the release was made - **name** (:class:`bytes`): the name of the release - **comment** (:class:`bytes`): the comment associated with the release - **author** (:class:`Dict[str, bytes]`): dictionary with keys: name, fullname, email the date dictionary has the form defined in :mod:`swh.model`. Returns: Summary dict of keys with associated count as values release:add: New objects contents actually stored in db """ releases = list(releases) summary = {'release:add': 0} release_ids = set(release['id'] for release in releases) releases_missing = set(self.release_missing(release_ids, db=db, cur=cur)) if not releases_missing: return summary db.mktemp_release(cur) releases_missing = list(releases_missing) releases_filtered = [ release for release in releases if release['id'] in releases_missing ] if self.journal_writer: self.journal_writer.write_additions('release', releases_filtered) releases_filtered = map(converters.release_to_db, releases_filtered) db.copy_to(releases_filtered, 'tmp_release', db.release_add_cols, cur) db.release_add_from_temp(cur) return {'release:add': len(releases_missing)} @remote_api_endpoint('release/missing') @timed @db_transaction_generator() def release_missing(self, releases, db=None, cur=None): """List releases missing from storage Args: releases: an iterable of release ids Returns: a list of missing release ids """ if not releases: return for obj in db.release_missing_from_list(releases, cur): yield obj[0] @remote_api_endpoint('release') @timed @db_transaction_generator(statement_timeout=500) def release_get(self, releases, db=None, cur=None): """Given a list of sha1, return the releases's information Args: releases: list of sha1s Yields: dicts with the same keys as those given to `release_add` (or ``None`` if a release does not exist) """ for release in db.release_get_from_list(releases, cur): data = converters.db_to_release( dict(zip(db.release_get_cols, release)) ) yield data if data['target_type'] else None @remote_api_endpoint('release/get_random') @timed @db_transaction() def release_get_random(self, db=None, cur=None): """Finds a random release id. Returns: a sha1_git """ return db.release_get_random(cur) @remote_api_endpoint('snapshot/add') @timed @process_metrics @db_transaction() def snapshot_add(self, snapshots, db=None, cur=None): """Add snapshots to the storage. Args: snapshot ([dict]): the snapshots to add, containing the following keys: - **id** (:class:`bytes`): id of the snapshot - **branches** (:class:`dict`): branches the snapshot contains, mapping the branch name (:class:`bytes`) to the branch target, itself a :class:`dict` (or ``None`` if the branch points to an unknown object) - **target_type** (:class:`str`): one of ``content``, ``directory``, ``revision``, ``release``, ``snapshot``, ``alias`` - **target** (:class:`bytes`): identifier of the target (currently a ``sha1_git`` for all object kinds, or the name of the target branch for aliases) Raises: ValueError: if the origin or visit id does not exist. Returns: Summary dict of keys with associated count as values snapshot:add: Count of object actually stored in db """ created_temp_table = False count = 0 for snapshot in snapshots: if not db.snapshot_exists(snapshot['id'], cur): if not created_temp_table: db.mktemp_snapshot_branch(cur) created_temp_table = True db.copy_to( ( { 'name': name, 'target': info['target'] if info else None, 'target_type': (info['target_type'] if info else None), } for name, info in snapshot['branches'].items() ), 'tmp_snapshot_branch', ['name', 'target', 'target_type'], cur, ) if self.journal_writer: self.journal_writer.write_addition('snapshot', snapshot) db.snapshot_add(snapshot['id'], cur) count += 1 return {'snapshot:add': count} + @remote_api_endpoint('snapshot/missing') + @timed + @db_transaction_generator() + def snapshot_missing(self, snapshots, db=None, cur=None): + """List snapshots missing from storage + + Args: + snapshots (iterable): an iterable of snapshot ids + + Yields: + missing snapshot ids + + """ + for obj in db.snapshot_missing_from_list(snapshots, cur): + yield obj[0] + @remote_api_endpoint('snapshot') @timed @db_transaction(statement_timeout=2000) def snapshot_get(self, snapshot_id, db=None, cur=None): """Get the content, possibly partial, of a snapshot with the given id The branches of the snapshot are iterated in the lexicographical order of their names. .. warning:: At most 1000 branches contained in the snapshot will be returned for performance reasons. In order to browse the whole set of branches, the method :meth:`snapshot_get_branches` should be used instead. Args: snapshot_id (bytes): identifier of the snapshot Returns: dict: a dict with three keys: * **id**: identifier of the snapshot * **branches**: a dict of branches contained in the snapshot whose keys are the branches' names. * **next_branch**: the name of the first branch not returned or :const:`None` if the snapshot has less than 1000 branches. """ return self.snapshot_get_branches(snapshot_id, db=db, cur=cur) @remote_api_endpoint('snapshot/by_origin_visit') @timed @db_transaction(statement_timeout=2000) def snapshot_get_by_origin_visit(self, origin, visit, db=None, cur=None): """Get the content, possibly partial, of a snapshot for the given origin visit The branches of the snapshot are iterated in the lexicographical order of their names. .. warning:: At most 1000 branches contained in the snapshot will be returned for performance reasons. In order to browse the whole set of branches, the method :meth:`snapshot_get_branches` should be used instead. Args: origin (int): the origin identifier visit (int): the visit identifier Returns: dict: None if the snapshot does not exist; a dict with three keys otherwise: * **id**: identifier of the snapshot * **branches**: a dict of branches contained in the snapshot whose keys are the branches' names. * **next_branch**: the name of the first branch not returned or :const:`None` if the snapshot has less than 1000 branches. """ snapshot_id = db.snapshot_get_by_origin_visit(origin, visit, cur) if snapshot_id: return self.snapshot_get(snapshot_id, db=db, cur=cur) return None @remote_api_endpoint('snapshot/latest') @timed @db_transaction(statement_timeout=4000) def snapshot_get_latest(self, origin, allowed_statuses=None, db=None, cur=None): """Get the content, possibly partial, of the latest snapshot for the given origin, optionally only from visits that have one of the given allowed_statuses The branches of the snapshot are iterated in the lexicographical order of their names. .. warning:: At most 1000 branches contained in the snapshot will be returned for performance reasons. In order to browse the whole set of branches, the method :meth:`snapshot_get_branches` should be used instead. Args: origin (str): the origin's URL allowed_statuses (list of str): list of visit statuses considered to find the latest snapshot for the visit. For instance, ``allowed_statuses=['full']`` will only consider visits that have successfully run to completion. Returns: dict: a dict with three keys: * **id**: identifier of the snapshot * **branches**: a dict of branches contained in the snapshot whose keys are the branches' names. * **next_branch**: the name of the first branch not returned or :const:`None` if the snapshot has less than 1000 branches. """ if isinstance(origin, int): origin = self.origin_get({'id': origin}, db=db, cur=cur) if not origin: return origin = origin['url'] origin_visit = self.origin_visit_get_latest( origin, allowed_statuses=allowed_statuses, require_snapshot=True, db=db, cur=cur) if origin_visit and origin_visit['snapshot']: snapshot = self.snapshot_get( origin_visit['snapshot'], db=db, cur=cur) if not snapshot: raise ValueError( 'last origin visit references an unknown snapshot') return snapshot @remote_api_endpoint('snapshot/count_branches') @timed @db_transaction(statement_timeout=2000) def snapshot_count_branches(self, snapshot_id, db=None, cur=None): """Count the number of branches in the snapshot with the given id Args: snapshot_id (bytes): identifier of the snapshot Returns: dict: A dict whose keys are the target types of branches and values their corresponding amount """ return dict([bc for bc in db.snapshot_count_branches(snapshot_id, cur)]) @remote_api_endpoint('snapshot/get_branches') @timed @db_transaction(statement_timeout=2000) def snapshot_get_branches(self, snapshot_id, branches_from=b'', branches_count=1000, target_types=None, db=None, cur=None): """Get the content, possibly partial, of a snapshot with the given id The branches of the snapshot are iterated in the lexicographical order of their names. Args: snapshot_id (bytes): identifier of the snapshot branches_from (bytes): optional parameter used to skip branches whose name is lesser than it before returning them branches_count (int): optional parameter used to restrain the amount of returned branches target_types (list): optional parameter used to filter the target types of branch to return (possible values that can be contained in that list are `'content', 'directory', 'revision', 'release', 'snapshot', 'alias'`) Returns: dict: None if the snapshot does not exist; a dict with three keys otherwise: * **id**: identifier of the snapshot * **branches**: a dict of branches contained in the snapshot whose keys are the branches' names. * **next_branch**: the name of the first branch not returned or :const:`None` if the snapshot has less than `branches_count` branches after `branches_from` included. """ if snapshot_id == EMPTY_SNAPSHOT_ID: return { 'id': snapshot_id, 'branches': {}, 'next_branch': None, } branches = {} next_branch = None fetched_branches = list(db.snapshot_get_by_id( snapshot_id, branches_from=branches_from, branches_count=branches_count+1, target_types=target_types, cur=cur, )) for branch in fetched_branches[:branches_count]: branch = dict(zip(db.snapshot_get_cols, branch)) del branch['snapshot_id'] name = branch.pop('name') if branch == {'target': None, 'target_type': None}: branch = None branches[name] = branch if len(fetched_branches) > branches_count: branch = dict(zip(db.snapshot_get_cols, fetched_branches[-1])) next_branch = branch['name'] if branches: return { 'id': snapshot_id, 'branches': branches, 'next_branch': next_branch, } return None @remote_api_endpoint('snapshot/get_random') @timed @db_transaction() def snapshot_get_random(self, db=None, cur=None): """Finds a random snapshot id. Returns: a sha1_git """ return db.snapshot_get_random(cur) @remote_api_endpoint('origin/visit/add') @timed @db_transaction() def origin_visit_add(self, origin, date, type, db=None, cur=None): """Add an origin_visit for the origin at ts with status 'ongoing'. Args: origin (str): visited origin's identifier or URL date (Union[str,datetime]): timestamp of such visit type (str): the type of loader used for the visit (hg, git, ...) Returns: dict: dictionary with keys origin and visit where: - origin: origin identifier - visit: the visit identifier for the new visit occurrence """ origin_url = origin if isinstance(date, str): # FIXME: Converge on iso8601 at some point date = dateutil.parser.parse(date) visit_id = db.origin_visit_add(origin_url, date, type, cur) if self.journal_writer: # We can write to the journal only after inserting to the # DB, because we want the id of the visit self.journal_writer.write_addition('origin_visit', { 'origin': origin_url, 'date': date, 'type': type, 'visit': visit_id, 'status': 'ongoing', 'metadata': None, 'snapshot': None}) send_metric('origin_visit:add', count=1, method_name='origin_visit') return { 'origin': origin_url, 'visit': visit_id, } @remote_api_endpoint('origin/visit/update') @timed @db_transaction() def origin_visit_update(self, origin, visit_id, status=None, metadata=None, snapshot=None, db=None, cur=None): """Update an origin_visit's status. Args: origin (str): visited origin's URL visit_id: Visit's id status: Visit's new status metadata: Data associated to the visit snapshot (sha1_git): identifier of the snapshot to add to the visit Returns: None """ if not isinstance(origin, str): raise TypeError('origin must be a string, not %r' % (origin,)) origin_url = origin visit = db.origin_visit_get(origin_url, visit_id, cur=cur) if not visit: raise ValueError('Invalid visit_id for this origin.') visit = dict(zip(db.origin_visit_get_cols, visit)) updates = {} if status and status != visit['status']: updates['status'] = status if metadata and metadata != visit['metadata']: updates['metadata'] = metadata if snapshot and snapshot != visit['snapshot']: updates['snapshot'] = snapshot if updates: if self.journal_writer: self.journal_writer.write_update('origin_visit', { **visit, **updates}) db.origin_visit_update(origin_url, visit_id, updates, cur) @remote_api_endpoint('origin/visit/upsert') @timed @db_transaction() def origin_visit_upsert(self, visits, db=None, cur=None): """Add a origin_visits with a specific id and with all its data. If there is already an origin_visit with the same `(origin_id, visit_id)`, overwrites it. Args: visits: iterable of dicts with keys: - **origin**: dict with keys either `id` or `url` - **visit**: origin visit id - **date**: timestamp of such visit - **status**: Visit's new status - **metadata**: Data associated to the visit - **snapshot**: identifier of the snapshot to add to the visit """ visits = copy.deepcopy(visits) for visit in visits: if isinstance(visit['date'], str): visit['date'] = dateutil.parser.parse(visit['date']) if not isinstance(visit['origin'], str): raise TypeError("visit['origin'] must be a string, not %r" % (visit['origin'],)) if self.journal_writer: for visit in visits: self.journal_writer.write_addition('origin_visit', visit) for visit in visits: # TODO: upsert them all in a single query db.origin_visit_upsert(**visit, cur=cur) @remote_api_endpoint('origin/visit/get') @timed @db_transaction_generator(statement_timeout=500) def origin_visit_get(self, origin, last_visit=None, limit=None, db=None, cur=None): """Retrieve all the origin's visit's information. Args: origin (str): The visited origin last_visit: Starting point from which listing the next visits Default to None limit (int): Number of results to return from the last visit. Default to None Yields: List of visits. """ for line in db.origin_visit_get_all( origin, last_visit=last_visit, limit=limit, cur=cur): data = dict(zip(db.origin_visit_get_cols, line)) yield data @remote_api_endpoint('origin/visit/find_by_date') @timed @db_transaction(statement_timeout=500) def origin_visit_find_by_date(self, origin, visit_date, db=None, cur=None): """Retrieves the origin visit whose date is closest to the provided timestamp. In case of a tie, the visit with largest id is selected. Args: origin (str): The occurrence's origin (URL). target (datetime): target timestamp Returns: A visit. """ line = db.origin_visit_find_by_date(origin, visit_date, cur=cur) if line: return dict(zip(db.origin_visit_get_cols, line)) @remote_api_endpoint('origin/visit/getby') @timed @db_transaction(statement_timeout=500) def origin_visit_get_by(self, origin, visit, db=None, cur=None): """Retrieve origin visit's information. Args: origin: The occurrence's origin (identifier). Returns: The information on that particular (origin, visit) or None if it does not exist """ ori_visit = db.origin_visit_get(origin, visit, cur) if not ori_visit: return None return dict(zip(db.origin_visit_get_cols, ori_visit)) @remote_api_endpoint('origin/visit/get_latest') @timed @db_transaction(statement_timeout=4000) def origin_visit_get_latest( self, origin, allowed_statuses=None, require_snapshot=False, db=None, cur=None): """Get the latest origin visit for the given origin, optionally looking only for those with one of the given allowed_statuses or for those with a known snapshot. Args: origin (str): the origin's URL allowed_statuses (list of str): list of visit statuses considered to find the latest visit. For instance, ``allowed_statuses=['full']`` will only consider visits that have successfully run to completion. require_snapshot (bool): If True, only a visit with a snapshot will be returned. Returns: dict: a dict with the following keys: - **origin**: the URL of the origin - **visit**: origin visit id - **type**: type of loader used for the visit - **date**: timestamp of such visit - **status**: Visit's new status - **metadata**: Data associated to the visit - **snapshot** (Optional[sha1_git]): identifier of the snapshot associated to the visit """ origin_visit = db.origin_visit_get_latest( origin, allowed_statuses=allowed_statuses, require_snapshot=require_snapshot, cur=cur) if origin_visit: return dict(zip(db.origin_visit_get_cols, origin_visit)) @remote_api_endpoint('origin/visit/get_random') @timed @db_transaction() def origin_visit_get_random( self, type: str, db=None, cur=None) -> Optional[Dict[str, Any]]: """Randomly select one successful origin visit with made in the last 3 months. Returns: dict representing an origin visit, in the same format as :py:meth:`origin_visit_get`. """ result = db.origin_visit_get_random(type, cur) if result: return dict(zip(db.origin_visit_get_cols, result)) else: return None @remote_api_endpoint('object/find_by_sha1_git') @timed @db_transaction(statement_timeout=2000) def object_find_by_sha1_git(self, ids, db=None, cur=None): """Return the objects found with the given ids. Args: ids: a generator of sha1_gits Returns: dict: a mapping from id to the list of objects found. Each object found is itself a dict with keys: - sha1_git: the input id - type: the type of object found """ ret = {id: [] for id in ids} for retval in db.object_find_by_sha1_git(ids, cur=cur): if retval[1]: ret[retval[0]].append(dict(zip(db.object_find_by_sha1_git_cols, retval))) return ret @remote_api_endpoint('origin/get') @timed @db_transaction(statement_timeout=500) def origin_get(self, origins, db=None, cur=None): """Return origins, either all identified by their ids or all identified by tuples (type, url). If the url is given and the type is omitted, one of the origins with that url is returned. Args: origin: a list of dictionaries representing the individual origins to find. These dicts have the key url: - url (bytes): the url the origin points to Returns: dict: the origin dictionary with the keys: - id: origin's id - url: origin's url Raises: ValueError: if the url or the id don't exist. """ if isinstance(origins, dict): # Old API return_single = True origins = [origins] elif len(origins) == 0: return [] else: return_single = False origin_urls = [origin['url'] for origin in origins] results = db.origin_get_by_url(origin_urls, cur) results = [dict(zip(db.origin_cols, result)) for result in results] if return_single: assert len(results) == 1 if results[0]['url'] is not None: return results[0] else: return None else: return [None if res['url'] is None else res for res in results] @remote_api_endpoint('origin/get_sha1') @timed @db_transaction_generator(statement_timeout=500) def origin_get_by_sha1(self, sha1s, db=None, cur=None): """Return origins, identified by the sha1 of their URLs. Args: sha1s (list[bytes]): a list of sha1s Yields: dicts containing origin information as returned by :meth:`swh.storage.storage.Storage.origin_get`, or None if an origin matching the sha1 is not found. """ for line in db.origin_get_by_sha1(sha1s, cur): if line[0] is not None: yield dict(zip(db.origin_cols, line)) else: yield None @remote_api_endpoint('origin/get_range') @timed @db_transaction_generator() def origin_get_range(self, origin_from=1, origin_count=100, db=None, cur=None): """Retrieve ``origin_count`` origins whose ids are greater or equal than ``origin_from``. Origins are sorted by id before retrieving them. Args: origin_from (int): the minimum id of origins to retrieve origin_count (int): the maximum number of origins to retrieve Yields: dicts containing origin information as returned by :meth:`swh.storage.storage.Storage.origin_get`. """ for origin in db.origin_get_range(origin_from, origin_count, cur): yield dict(zip(db.origin_get_range_cols, origin)) @remote_api_endpoint('origin/list') @timed @db_transaction() def origin_list(self, page_token: Optional[str] = None, limit: int = 100, *, db=None, cur=None) -> dict: """Returns the list of origins Args: page_token: opaque token used for pagination. limit: the maximum number of results to return Returns: dict: dict with the following keys: - **next_page_token** (str, optional): opaque token to be used as `page_token` for retrieving the next page. if absent, there is no more pages to gather. - **origins** (List[dict]): list of origins, as returned by `origin_get`. """ page_token = page_token or '0' if not isinstance(page_token, str): raise TypeError('page_token must be a string.') origin_from = int(page_token) result: Dict[str, Any] = { 'origins': [ dict(zip(db.origin_get_range_cols, origin)) for origin in db.origin_get_range(origin_from, limit, cur) ], } assert len(result['origins']) <= limit if len(result['origins']) == limit: result['next_page_token'] = str(result['origins'][limit-1]['id']+1) for origin in result['origins']: del origin['id'] return result @remote_api_endpoint('origin/search') @timed @db_transaction_generator() def origin_search(self, url_pattern, offset=0, limit=50, regexp=False, with_visit=False, db=None, cur=None): """Search for origins whose urls contain a provided string pattern or match a provided regular expression. The search is performed in a case insensitive way. Args: url_pattern (str): the string pattern to search for in origin urls offset (int): number of found origins to skip before returning results limit (int): the maximum number of found origins to return regexp (bool): if True, consider the provided pattern as a regular expression and return origins whose urls match it with_visit (bool): if True, filter out origins with no visit Yields: dicts containing origin information as returned by :meth:`swh.storage.storage.Storage.origin_get`. """ for origin in db.origin_search(url_pattern, offset, limit, regexp, with_visit, cur): yield dict(zip(db.origin_cols, origin)) @remote_api_endpoint('origin/count') @timed @db_transaction() def origin_count(self, url_pattern, regexp=False, with_visit=False, db=None, cur=None): """Count origins whose urls contain a provided string pattern or match a provided regular expression. The pattern search in origin urls is performed in a case insensitive way. Args: url_pattern (str): the string pattern to search for in origin urls regexp (bool): if True, consider the provided pattern as a regular expression and return origins whose urls match it with_visit (bool): if True, filter out origins with no visit Returns: int: The number of origins matching the search criterion. """ return db.origin_count(url_pattern, regexp, with_visit, cur) @remote_api_endpoint('origin/add_multi') @timed @db_transaction() def origin_add(self, origins, db=None, cur=None): """Add origins to the storage Args: origins: list of dictionaries representing the individual origins, with the following keys: - type: the origin type ('git', 'svn', 'deb', ...) - url (bytes): the url the origin points to Returns: list: given origins as dict updated with their id """ origins = copy.deepcopy(list(origins)) for origin in origins: self.origin_add_one(origin, db=db, cur=cur) send_metric('origin:add', count=len(origins), method_name='origin_add') return origins @remote_api_endpoint('origin/add') @timed @db_transaction() def origin_add_one(self, origin, db=None, cur=None): """Add origin to the storage Args: origin: dictionary representing the individual origin to add. This dict has the following keys: - type (FIXME: enum TBD): the origin type ('git', 'wget', ...) - url (bytes): the url the origin points to Returns: the id of the added origin, or of the identical one that already exists. """ origin_row = list(db.origin_get_by_url([origin['url']], cur))[0] origin_url = dict(zip(db.origin_cols, origin_row))['url'] if origin_url: return origin_url if self.journal_writer: self.journal_writer.write_addition('origin', origin) origins = db.origin_add(origin['url'], cur) send_metric('origin:add', count=len(origins), method_name='origin_add') return origins @db_transaction(statement_timeout=500) def stat_counters(self, db=None, cur=None): """compute statistics about the number of tuples in various tables Returns: dict: a dictionary mapping textual labels (e.g., content) to integer values (e.g., the number of tuples in table content) """ return {k: v for (k, v) in db.stat_counters()} @db_transaction() def refresh_stat_counters(self, db=None, cur=None): """Recomputes the statistics for `stat_counters`.""" keys = [ 'content', 'directory', 'directory_entry_dir', 'directory_entry_file', 'directory_entry_rev', 'origin', 'origin_visit', 'person', 'release', 'revision', 'revision_history', 'skipped_content', 'snapshot'] for key in keys: cur.execute('select * from swh_update_counter(%s)', (key,)) @remote_api_endpoint('origin/metadata/add') @timed @db_transaction() def origin_metadata_add(self, origin_url, ts, provider, tool, metadata, db=None, cur=None): """ Add an origin_metadata for the origin at ts with provenance and metadata. Args: origin_url (str): the origin url for which the metadata is added ts (datetime): timestamp of the found metadata provider (int): the provider of metadata (ex:'hal') tool (int): tool used to extract metadata metadata (jsonb): the metadata retrieved at the time and location """ if isinstance(ts, str): ts = dateutil.parser.parse(ts) db.origin_metadata_add(origin_url, ts, provider, tool, metadata, cur) send_metric( 'origin_metadata:add', count=1, method_name='origin_metadata_add') @remote_api_endpoint('origin/metadata/get') @timed @db_transaction_generator(statement_timeout=500) def origin_metadata_get_by(self, origin_url, provider_type=None, db=None, cur=None): """Retrieve list of all origin_metadata entries for the origin_id Args: origin_url (str): the origin's URL provider_type (str): (optional) type of provider Returns: list of dicts: the origin_metadata dictionary with the keys: - origin_id (int): origin's id - discovery_date (datetime): timestamp of discovery - tool_id (int): metadata's extracting tool - metadata (jsonb) - provider_id (int): metadata's provider - provider_name (str) - provider_type (str) - provider_url (str) """ for line in db.origin_metadata_get_by(origin_url, provider_type, cur): yield dict(zip(db.origin_metadata_get_cols, line)) @remote_api_endpoint('tool/add') @timed @db_transaction() def tool_add(self, tools, db=None, cur=None): """Add new tools to the storage. Args: tools (iterable of :class:`dict`): Tool information to add to storage. Each tool is a :class:`dict` with the following keys: - name (:class:`str`): name of the tool - version (:class:`str`): version of the tool - configuration (:class:`dict`): configuration of the tool, must be json-encodable Returns: :class:`dict`: All the tools inserted in storage (including the internal ``id``). The order of the list is not guaranteed to match the order of the initial list. """ db.mktemp_tool(cur) db.copy_to(tools, 'tmp_tool', ['name', 'version', 'configuration'], cur) tools = db.tool_add_from_temp(cur) results = [dict(zip(db.tool_cols, line)) for line in tools] send_metric('tool:add', count=len(results), method_name='tool_add') return results @remote_api_endpoint('tool/data') @timed @db_transaction(statement_timeout=500) def tool_get(self, tool, db=None, cur=None): """Retrieve tool information. Args: tool (dict): Tool information we want to retrieve from storage. The dicts have the same keys as those used in :func:`tool_add`. Returns: dict: The full tool information if it exists (``id`` included), None otherwise. """ tool_conf = tool['configuration'] if isinstance(tool_conf, dict): tool_conf = json.dumps(tool_conf) idx = db.tool_get(tool['name'], tool['version'], tool_conf) if not idx: return None return dict(zip(db.tool_cols, idx)) @remote_api_endpoint('provider/add') @timed @db_transaction() def metadata_provider_add(self, provider_name, provider_type, provider_url, metadata, db=None, cur=None): """Add a metadata provider. Args: provider_name (str): Its name provider_type (str): Its type (eg. `'deposit-client'`) provider_url (str): Its URL metadata: JSON-encodable object Returns: int: an identifier of the provider """ result = db.metadata_provider_add(provider_name, provider_type, provider_url, metadata, cur) send_metric( 'metadata_provider:add', count=1, method_name='metadata_provider') return result @remote_api_endpoint('provider/get') @timed @db_transaction() def metadata_provider_get(self, provider_id, db=None, cur=None): """Get a metadata provider Args: provider_id: Its identifier, as given by `metadata_provider_add`. Returns: dict: same as `metadata_provider_add`; or None if it does not exist. """ result = db.metadata_provider_get(provider_id) if not result: return None return dict(zip(db.metadata_provider_cols, result)) @remote_api_endpoint('provider/getby') @timed @db_transaction() def metadata_provider_get_by(self, provider, db=None, cur=None): """Get a metadata provider Args: provider (dict): A dictionary with keys: * provider_name: Its name * provider_url: Its URL Returns: dict: same as `metadata_provider_add`; or None if it does not exist. """ result = db.metadata_provider_get_by(provider['provider_name'], provider['provider_url']) if not result: return None return dict(zip(db.metadata_provider_cols, result)) @remote_api_endpoint('algos/diff_directories') @timed def diff_directories(self, from_dir, to_dir, track_renaming=False): """Compute the list of file changes introduced between two arbitrary directories (insertion / deletion / modification / renaming of files). Args: from_dir (bytes): identifier of the directory to compare from to_dir (bytes): identifier of the directory to compare to track_renaming (bool): whether or not to track files renaming Returns: A list of dict describing the introduced file changes (see :func:`swh.storage.algos.diff.diff_directories` for more details). """ return diff.diff_directories(self, from_dir, to_dir, track_renaming) @remote_api_endpoint('algos/diff_revisions') @timed def diff_revisions(self, from_rev, to_rev, track_renaming=False): """Compute the list of file changes introduced between two arbitrary revisions (insertion / deletion / modification / renaming of files). Args: from_rev (bytes): identifier of the revision to compare from to_rev (bytes): identifier of the revision to compare to track_renaming (bool): whether or not to track files renaming Returns: A list of dict describing the introduced file changes (see :func:`swh.storage.algos.diff.diff_directories` for more details). """ return diff.diff_revisions(self, from_rev, to_rev, track_renaming) @remote_api_endpoint('algos/diff_revision') @timed def diff_revision(self, revision, track_renaming=False): """Compute the list of file changes introduced by a specific revision (insertion / deletion / modification / renaming of files) by comparing it against its first parent. Args: revision (bytes): identifier of the revision from which to compute the list of files changes track_renaming (bool): whether or not to track files renaming Returns: A list of dict describing the introduced file changes (see :func:`swh.storage.algos.diff.diff_directories` for more details). """ return diff.diff_revision(self, revision, track_renaming)