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diff --git a/swh/storage/db.py b/swh/storage/db.py
index ec1743e21..9f61c7edc 100644
--- a/swh/storage/db.py
+++ b/swh/storage/db.py
@@ -1,349 +1,363 @@
# Copyright (C) 2015 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 binascii
import datetime
import functools
import json
import psycopg2
import tempfile
from contextlib import contextmanager
TMP_CONTENT_TABLE = 'tmp_content'
def stored_procedure(stored_proc):
"""decorator to execute remote stored procedure, specified as argument
Generally, the body of the decorated function should be empty. If it is
not, the stored procedure will be executed first; the function body then.
"""
def wrap(meth):
@functools.wraps(meth)
def _meth(self, *args, **kwargs):
cur = kwargs.get('cur', None)
self._cursor(cur).execute('SELECT %s()' % stored_proc)
meth(self, *args, **kwargs)
return _meth
return wrap
def jsonize(value):
"""Convert a value to a psycopg2 JSON object if necessary"""
if isinstance(value, dict):
return psycopg2.extras.Json(value)
return value
def entry_to_bytes(entry):
"""Convert an entry coming from the database to bytes"""
if isinstance(entry, memoryview):
return entry.tobytes()
if isinstance(entry, list):
return [entry_to_bytes(value) for value in entry]
return entry
def line_to_bytes(line):
"""Convert a line coming from the database to bytes"""
return line.__class__(entry_to_bytes(entry) for entry in line)
def cursor_to_bytes(cursor):
"""Yield all the data from a cursor as bytes"""
yield from (line_to_bytes(line) for line in cursor)
class Db:
"""Proxy to the SWH DB, with wrappers around stored procedures
"""
@classmethod
def connect(cls, *args, **kwargs):
"""factory method to create a DB proxy
Accepts all arguments of psycopg2.connect; only some specific
possibilities are reported below.
Args:
connstring: libpq2 connection string
"""
conn = psycopg2.connect(*args, **kwargs)
return cls(conn)
def _cursor(self, cur_arg):
"""get a cursor: from cur_arg if given, or a fresh one otherwise
meant to avoid boilerplate if/then/else in methods that proxy stored
procedures
"""
if cur_arg is not None:
return cur_arg
# elif self.cur is not None:
# return self.cur
else:
return self.conn.cursor()
def __init__(self, conn):
"""create a DB proxy
Args:
conn: psycopg2 connection to the SWH DB
"""
self.conn = conn
@contextmanager
def transaction(self):
"""context manager to execute within a DB transaction
Yields:
a psycopg2 cursor
"""
with self.conn.cursor() as cur:
try:
yield cur
self.conn.commit()
except:
if not self.conn.closed:
self.conn.rollback()
raise
def mktemp(self, tblname, cur=None):
self._cursor(cur).execute('SELECT swh_mktemp(%s)', (tblname,))
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_entity_lister')
def mktemp_entity_lister(self, cur=None): pass
@stored_procedure('swh_mktemp_entity_history')
def mktemp_entity_history(self, cur=None): pass
def copy_to(self, items, tblname, columns, cur=None, item_cb=None):
def escape(data):
if data is None:
return ''
if isinstance(data, bytes):
return '\\x%s' % binascii.hexlify(data).decode('ascii')
elif isinstance(data, str):
return '"%s"' % data.replace('"', '""')
elif isinstance(data, datetime.datetime):
# We escape twice to make sure the string generated by
# isoformat gets escaped
return escape(data.isoformat())
elif isinstance(data, dict):
return escape(json.dumps(data))
elif isinstance(data, list):
return escape("{%s}" % ','.join(escape(d) for d in data))
elif isinstance(data, psycopg2.extras.Range):
# We escape twice here too, so that we make sure
# everything gets passed to copy properly
return escape(
'%s%s,%s%s' % (
'[' if data.lower_inc else '(',
'-infinity' if data.lower_inf else escape(data.lower),
'infinity' if data.upper_inf else escape(data.upper),
']' if data.upper_inc else ')',
)
)
else:
# We don't escape here to make sure we pass literals properly
return str(data)
with tempfile.TemporaryFile('w+') as f:
for d in items:
if item_cb is not None:
item_cb(d)
line = [escape(d.get(k)) for k in columns]
f.write(','.join(line))
f.write('\n')
f.seek(0)
self._cursor(cur).copy_expert('COPY %s (%s) FROM STDIN CSV' % (
tblname, ', '.join(columns)), f)
@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
@stored_procedure('swh_occurrence_history_add')
def occurrence_history_add_from_temp(self, cur=None): pass
@stored_procedure('swh_entity_history_add')
def entity_history_add_from_temp(self, cur=None): pass
def content_missing_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute("""SELECT sha1, sha1_git, sha256
FROM swh_content_missing()""")
yield from cursor_to_bytes(cur)
def skipped_content_missing_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute("""SELECT sha1, sha1_git, sha256
FROM swh_skipped_content_missing()""")
yield from cursor_to_bytes(cur)
def content_find(self, sha1=None, sha1_git=None, sha256=None, cur=None):
"""Find the content optionally on a combination of the following
checksums sha1, sha1_git or sha256.
Args:
sha1: sha1 content
git_sha1: the sha1 computed `a la git` sha1 of the content
sha256: sha256 content
Returns:
The triplet (sha1, sha1_git, sha256) if found or None.
"""
cur = self._cursor(cur)
cur.execute("""SELECT sha1, sha1_git, sha256
FROM swh_content_find(%s, %s, %s)
LIMIT 1""", (sha1, sha1_git, sha256))
content = line_to_bytes(cur.fetchone())
return None if content == (None, None, None) else content
def content_find_occurrence(self, sha1, cur=None):
"""Find one content's occurrence.
Args:
sha1: sha1 content
cur: cursor to use
Returns:
One occurrence for that particular sha1
"""
cur = self._cursor(cur)
cur.execute("""SELECT *
FROM swh_content_find_occurrence(%s)
LIMIT 1""",
(sha1, ))
return line_to_bytes(cur.fetchone())
def directory_missing_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT * FROM swh_directory_missing()')
yield from cursor_to_bytes(cur)
def directory_walk_one(self, directory, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT * FROM swh_directory_walk_one(%s)', (directory,))
yield from cursor_to_bytes(cur)
def directory_walk(self, directory, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT * FROM swh_directory_walk(%s)', (directory,))
yield from cursor_to_bytes(cur)
def revision_missing_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT id FROM swh_revision_missing() as r(id)')
yield from cursor_to_bytes(cur)
def revision_get_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT * FROM swh_revision_get()')
yield from cursor_to_bytes(cur)
def release_missing_from_temp(self, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT id FROM swh_release_missing() as r(id)')
yield from cursor_to_bytes(cur)
def stat_counters(self, cur=None):
cur = self._cursor(cur)
cur.execute('SELECT * FROM swh_stat_counters()')
yield from cur
fetch_history_cols = ['origin', 'date', 'status', 'result', 'stdout',
'stderr', 'duration']
def create_fetch_history(self, fetch_history, cur=None):
"""Create a fetch_history entry with the data in fetch_history"""
cur = self._cursor(cur)
query = '''INSERT INTO fetch_history (%s)
VALUES (%s) RETURNING id''' % (
','.join(self.fetch_history_cols),
','.join(['%s'] * len(self.fetch_history_cols))
)
cur.execute(query, [fetch_history.get(col) for col in
self.fetch_history_cols])
return cur.fetchone()[0]
def get_fetch_history(self, fetch_history_id, cur=None):
"""Get a fetch_history entry with the given id"""
cur = self._cursor(cur)
query = '''SELECT %s FROM fetch_history WHERE id=%%s''' % (
', '.join(self.fetch_history_cols),
)
cur.execute(query, (fetch_history_id,))
data = cur.fetchone()
if not data:
return None
ret = {'id': fetch_history_id}
for i, col in enumerate(self.fetch_history_cols):
ret[col] = data[i]
return ret
def update_fetch_history(self, fetch_history, cur=None):
"""Update the fetch_history entry from the data in fetch_history"""
cur = self._cursor(cur)
query = '''UPDATE fetch_history
SET %s
WHERE id=%%s''' % (
','.join('%s=%%s' % col for col in self.fetch_history_cols)
)
cur.execute(query, [jsonize(fetch_history.get(col)) for col in
self.fetch_history_cols + ['id']])
base_entity_cols = ['uuid', 'parent', 'name', 'type',
'description', 'homepage', 'active',
'generated', 'lister', 'lister_metadata',
'doap']
entity_cols = base_entity_cols + ['last_seen', 'last_id']
entity_history_cols = base_entity_cols + ['id', 'validity']
+
+ def origin_get_id(self, type, url, cur=None):
+ """Retrieve the origin id from its type and url if found."""
+ cur = self._cursor(cur)
+
+ query = "select id from origin where type=%s and url=%s"
+
+ cur.execute(query, (type, url))
+
+ data = cur.fetchone()
+ if not data:
+ return None
+ else:
+ return data[0]
diff --git a/swh/storage/storage.py b/swh/storage/storage.py
index edfe0a575..f0a0cbe63 100644
--- a/swh/storage/storage.py
+++ b/swh/storage/storage.py
@@ -1,790 +1,782 @@
# Copyright (C) 2015 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
from collections import defaultdict
import datetime
import functools
import itertools
import dateutil.parser
import psycopg2
from psycopg2.extras import DateTimeTZRange
from .db import Db
from .objstorage import ObjStorage
from swh.core.hashutil import ALGORITHMS
# Max block size of contents to return
BULK_BLOCK_CONTENT_LEN_MAX = 10000
def db_transaction(meth):
"""decorator to execute Storage methods within DB transactions
The decorated method must accept a `cur` keyword argument
"""
@functools.wraps(meth)
def _meth(self, *args, **kwargs):
with self.db.transaction() as cur:
return meth(self, *args, cur=cur, **kwargs)
return _meth
def db_transaction_generator(meth):
"""decorator to execute Storage methods within DB transactions, while
returning a generator
The decorated method must accept a `cur` keyword argument
"""
@functools.wraps(meth)
def _meth(self, *args, **kwargs):
with self.db.transaction() as cur:
yield from meth(self, *args, cur=cur, **kwargs)
return _meth
class Storage():
"""SWH storage proxy, encompassing DB and object storage
"""
def __init__(self, db_conn, obj_root):
"""
Args:
db_conn: either a libpq connection string, or a psycopg2 connection
obj_root: path to the root of the object storage
"""
if isinstance(db_conn, psycopg2.extensions.connection):
self.db = Db(db_conn)
else:
self.db = Db.connect(db_conn)
self.objstorage = ObjStorage(obj_root)
def content_add(self, content):
"""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:
content: 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
swh.core.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
"""
db = self.db
content_by_status = defaultdict(list)
for d in content:
if 'status' not in d:
d['status'] = 'visible'
if 'length' not in d:
d['length'] = -1
content_by_status[d['status']].append(d)
content_with_data = content_by_status['visible']
content_without_data = content_by_status['absent']
missing_content = set(self.content_missing(content_with_data))
missing_skipped = set(
sha1_git for sha1, sha1_git, sha256
in self.skipped_content_missing(content_without_data))
with db.transaction() as cur:
if missing_content:
# create temporary table for metadata injection
db.mktemp('content', cur)
def add_to_objstorage(cont):
self.objstorage.add_bytes(cont['data'],
obj_id=cont['sha1'])
content_filtered = (cont for cont in content_with_data
if cont['sha1'] in missing_content)
db.copy_to(content_filtered, 'tmp_content',
['sha1', 'sha1_git', 'sha256', 'length', 'status'],
cur, item_cb=add_to_objstorage)
# move metadata in place
db.content_add_from_temp(cur)
if missing_skipped:
missing_filtered = (cont for cont in content_without_data
if cont['sha1_git'] in missing_skipped)
db.mktemp('skipped_content', cur)
db.copy_to(missing_filtered, 'tmp_skipped_content',
['sha1', 'sha1_git', 'sha256', 'length',
'reason', 'status', 'origin'], cur)
# move metadata in place
db.skipped_content_add_from_temp(cur)
def content_get(self, content):
"""Retrieve in bulk contents and their data.
Args:
content: iterables of contents as dict.
keys:
- sha1, status
Returns:
Generates streams of contents as dict with their raw data.
Raises:
ValueError in case of too much contents are required.
cf. BULK_BLOCK_CONTENT_LEN_MAX
"""
# FIXME: Improve on server module to slice the result
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:
data = self.objstorage.get_bytes(obj_id)
yield {'sha1': obj_id, 'data': data}
@db_transaction_generator
def content_missing(self, content, key_hash='sha1', cur=None):
"""List content missing from storage
Args:
content: iterable of dictionaries containing one key for each
checksum algorithm in swh.core.hashutil.ALGORITHMS, mapped to
the corresponding checksum, and a length key mapped to the
content length.
key_hash: the name of the hash used as key (default: 'sha1')
Returns:
an iterable of `key_hash`es missing from the storage
Raises:
TODO: an exception when we get a hash collision.
"""
db = self.db
keys = ['sha1', 'sha1_git', 'sha256']
if key_hash not in keys:
raise ValueError("key_hash should be one of %s" % keys)
key_hash_idx = keys.index(key_hash)
# Create temporary table for metadata injection
db.mktemp('content', cur)
db.copy_to(content, 'tmp_content', keys + ['length'], cur)
for obj in db.content_missing_from_temp(cur):
yield obj[key_hash_idx]
@db_transaction_generator
def skipped_content_missing(self, content, cur=None):
"""List skipped_content missing from storage
Args:
content: iterable of dictionaries containing the data for each
checksum algorithm.
Returns:
an iterable of signatures missing from the storage
"""
keys = ['sha1', 'sha1_git', 'sha256']
db = self.db
db.mktemp('skipped_content', cur)
db.copy_to(content, 'tmp_skipped_content',
keys + ['length', 'reason'], cur)
yield from db.skipped_content_missing_from_temp(cur)
@db_transaction
def content_find(self, content, cur=None):
"""Find a content hash in db.
Args:
content: a dictionary representing one content hash, mapping
checksum algorithm names (see swh.core.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.
"""
db = self.db
if not set(content).intersection(ALGORITHMS):
raise ValueError('content keys must contain at least one of: '
'sha1, sha1_git, sha256')
# format the output
found_hash = db.content_find(sha1=content.get('sha1'),
sha1_git=content.get('sha1_git'),
sha256=content.get('sha256'),
cur=cur)
return found_hash
@db_transaction
def content_exist(self, content, cur=None):
"""Predicate to check the presence of a content's hashes.
Args:
content: a dictionary entry representing one content hash.
The dictionary key is one of swh.core.hashutil.ALGORITHMS.
The value mapped to the corresponding checksum.
Returns:
a boolean indicator of presence
Raises:
ValueError in case the key of the dictionary is not sha1, sha1_git
nor sha256.
"""
return self.content_find(content) is not None
@db_transaction
def content_find_occurrence(self, content, cur=None):
"""Find the content's occurrence.
Args:
content: a dictionary entry representing one content hash.
The dictionary key is one of swh.core.hashutil.ALGORITHMS.
The value mapped to the corresponding checksum.
Returns:
The occurrence of the content.
Raises:
ValueError in case the key of the dictionary is not sha1, sha1_git
nor sha256.
"""
db = self.db
c = self.content_find(content)
if c is None:
return None
sha1, _, _ = c
found_occ = db.content_find_occurrence(sha1, cur=cur)
if found_occ is None:
return None
return {'origin_type': found_occ[0],
'origin_url': found_occ[1],
'branch': found_occ[2],
'revision': found_occ[3],
'path': found_occ[4]}
def directory_add(self, directories):
"""Add directories to the storage
Args:
directories: 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
"""
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 entry in cur_dir['entries']:
entry['dir_id'] = dir_id
dir_entries[entry['type']][dir_id].append(entry)
dirs_missing = set(self.directory_missing(dirs))
if not dirs_missing:
return
db = self.db
with db.transaction() as cur:
# 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)
@db_transaction_generator
def directory_missing(self, directories, cur):
"""List directories missing from storage
Args: an iterable of directory ids
Returns: a list of missing directory ids
"""
db = self.db
# Create temporary table for metadata injection
db.mktemp('directory', cur)
directories_dicts = ({'id': dir} for dir in directories)
db.copy_to(directories_dicts, 'tmp_directory', ['id'], cur)
for obj in db.directory_missing_from_temp(cur):
yield obj[0]
@db_transaction_generator
def directory_get(self, directory, recursive=False, 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.
"""
db = self.db
keys = ['dir_id', 'type', 'target', 'name', 'perms', 'status',
'sha1', 'sha1_git', 'sha256']
if recursive:
res_gen = db.directory_walk(directory)
else:
res_gen = db.directory_walk_one(directory)
for line in res_gen:
yield dict(zip(keys, line))
def revision_add(self, revisions):
"""Add revisions to the storage
Args:
revisions: iterable of dictionaries representing the individual
revisions to add. Each dict has the following keys:
- id (sha1_git): id of the revision to add
- date (datetime.DateTime): date the revision was written
- date_offset (int): offset from UTC in minutes the revision
was written
- committer_date (datetime.DateTime): date the revision got
added to the origin
- committer_date_offset (int): offset from UTC in minutes the
revision was added to the origin
- type (one of 'git', 'tar'): type of the revision added
- directory (sha1_git): the directory the revision points at
- message (bytes): the message associated with the revision
- author_name (bytes): the name of the revision author
- author_email (bytes): the email of the revision author
- committer_name (bytes): the name of the revision committer
- committer_email (bytes): the email of the revision committer
- metadata (jsonb): extra information as dictionary
- synthetic (bool): revision's nature (tarball, directory
creates synthetic revision)
- parents (list of sha1_git): the parents of this revision
"""
db = self.db
parents = {}
for revision in revisions:
id = revision['id']
cur_parents = enumerate(revision.get('parents', []))
parents[id] = [{
'id': id,
'parent_id': parent,
'parent_rank': i
} for i, parent in cur_parents]
revisions_missing = list(self.revision_missing(parents.keys()))
if not revisions_missing:
return
with db.transaction() as cur:
db.mktemp_revision(cur)
revisions_filtered = (revision for revision in revisions
if revision['id'] in revisions_missing)
db.copy_to(revisions_filtered, 'tmp_revision',
['id', 'date', 'date_offset', 'committer_date',
'committer_date_offset', 'type', 'directory',
'message', 'author_name', 'author_email',
'committer_name', 'committer_email', 'metadata',
'synthetic'],
cur)
db.revision_add_from_temp(cur)
parents_filtered = itertools.chain.from_iterable(
parents[id] for id in revisions_missing)
db.copy_to(parents_filtered, 'revision_history',
['id', 'parent_id', 'parent_rank'], cur)
@db_transaction_generator
def revision_missing(self, revisions, cur):
"""List revisions missing from storage
Args: an iterable of revision ids
Returns: a list of missing revision ids
"""
db = self.db
# Create temporary table for metadata injection
db.mktemp('revision', cur)
revisions_dicts = ({'id': dir, 'type': 'git'} for dir in revisions)
db.copy_to(revisions_dicts, 'tmp_revision', ['id', 'type'], cur)
for obj in db.revision_missing_from_temp(cur):
yield obj[0]
@db_transaction_generator
def revision_get(self, revisions, cur):
"""Get all revisions from storage
Args: an iterable of revision ids
Returns: an iterable of revisions as dictionaries
(or None if the revision doesn't exist)
"""
keys = ('id', 'date', 'date_offset', 'committer_date',
'committer_date_offset', 'type', 'directory',
'message', 'author_name', 'author_email',
'committer_name', 'committer_email', 'metadata',
'synthetic', 'parents')
db = self.db
# Create temporary table for metadata injection
db.mktemp('revision', cur)
revisions_dicts = ({'id': rev, 'type': 'git'} for rev in revisions)
db.copy_to(revisions_dicts, 'tmp_revision', ['id', 'type'], cur)
for line in self.db.revision_get_from_temp(cur):
data = dict(zip(keys, line))
if not data['type']:
yield None
continue
yield data
def release_add(self, releases):
"""Add releases to the storage
Args:
releases: iterable of dictionaries representing the individual
releases to add. Each dict has the following keys:
- id (sha1_git): id of the release to add
- revision (sha1_git): id of the revision the release points
to
- date (datetime.DateTime): the date the release was made
- date_offset (int): offset from UTC in minutes the release was
made
- name (bytes): the name of the release
- comment (bytes): the comment associated with the release
- author_name (bytes): the name of the release author
- author_email (bytes): the email of the release author
"""
db = self.db
release_ids = set(release['id'] for release in releases)
releases_missing = list(self.release_missing(release_ids))
if not releases_missing:
return
with db.transaction() as cur:
db.mktemp_release(cur)
releases_filtered = (release for release in releases
if release['id'] in releases_missing)
db.copy_to(releases_filtered, 'tmp_release',
['id', 'revision', 'date', 'date_offset', 'name',
'comment', 'author_name', 'author_email',
'synthetic'],
cur)
db.release_add_from_temp(cur)
@db_transaction_generator
def release_missing(self, releases, cur=None):
"""List releases missing from storage
Args: an iterable of release ids
Returns: a list of missing release ids
"""
db = self.db
# Create temporary table for metadata injection
db.mktemp('release', cur)
releases_dicts = ({'id': rel} for rel in releases)
db.copy_to(releases_dicts, 'tmp_release', ['id'], cur)
for obj in db.release_missing_from_temp(cur):
yield obj[0]
@db_transaction
def occurrence_add(self, occurrences, cur=None):
"""Add occurrences to the storage
Args:
occurrences: iterable of dictionaries representing the individual
occurrences to add. Each dict has the following keys:
- origin (int): id of the origin corresponding to the
occurrence
- branch (str): the reference name of the occurrence
- revision (sha1_git): the id of the revision pointed to by
the occurrence
- authority (uuid): id of the authority giving the validity
- validity (datetime.DateTime): the validity date for the given
occurrence
"""
db = self.db
processed = []
for occurrence in occurrences:
validity = occurrence['validity']
if isinstance(validity, str):
validity = dateutil.parser.parse(validity)
if isinstance(validity, datetime.datetime):
occurrence = occurrence.copy()
occurrence['validity'] = DateTimeTZRange(lower=validity)
processed.append(occurrence)
db.mktemp('occurrence_history', cur)
db.copy_to(processed, 'tmp_occurrence_history',
['origin', 'branch', 'revision', 'authority', 'validity'],
cur)
db.occurrence_history_add_from_temp(cur)
@db_transaction
def origin_get(self, origin, cur=None):
"""Return the id of the given origin
Args:
origin: dictionary representing the individual
origin to find. 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 queried origin
"""
- query = "select id from origin where type=%s and url=%s"
-
- cur.execute(query, (origin['type'], origin['url']))
-
- data = cur.fetchone()
- if not data:
- return None
- else:
- return data[0]
+ return self.db.origin_get_id(origin['type'], origin['url'])
@db_transaction
def origin_add_one(self, origin, 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.
"""
query = "select id from origin where type=%s and url=%s"
cur.execute(query, (origin['type'], origin['url']))
data = cur.fetchone()
if data:
return data[0]
insert = """insert into origin (type, url) values (%s, %s)
returning id"""
cur.execute(insert, (origin['type'], origin['url']))
return cur.fetchone()[0]
@db_transaction
def fetch_history_start(self, origin_id, cur=None):
"""Add an entry for origin origin_id in fetch_history. Returns the id
of the added fetch_history entry
"""
fetch_history = {
'origin': origin_id,
'date': datetime.datetime.now(tz=datetime.timezone.utc),
}
return self.db.create_fetch_history(fetch_history, cur)
@db_transaction
def fetch_history_end(self, fetch_history_id, data, cur=None):
"""Close the fetch_history entry with id `fetch_history_id`, replacing
its data with `data`.
"""
now = datetime.datetime.now(tz=datetime.timezone.utc)
fetch_history = self.db.get_fetch_history(fetch_history_id, cur)
if not fetch_history:
raise ValueError('No fetch_history with id %d' % fetch_history_id)
fetch_history['duration'] = now - fetch_history['date']
fetch_history.update(data)
self.db.update_fetch_history(fetch_history, cur)
@db_transaction
def fetch_history_get(self, fetch_history_id, cur=None):
"""Get the fetch_history entry with id `fetch_history_id`.
"""
return self.db.get_fetch_history(fetch_history_id, cur)
@db_transaction
def entity_add(self, entities, cur=None):
"""Add the given entitites to the database (in entity_history).
Args:
- entities: iterable of dictionaries containing the following keys:
- uuid (uuid): id of the entity
- parent (uuid): id of the parent entity
- name (str): name of the entity
- type (str): type of entity (one of 'organization',
'group_of_entities', 'hosting', 'group_of_persons',
'person', 'project')
- description (str, optional): description of the entity
- homepage (str): url of the entity's homepage
- active (bool): whether the entity is active
- generated (bool): whether the entity was generated
- lister (uuid): the uuid of the generating entity
- lister_metadata (dict): lister-specific entity metadata
- doap (dict): DOAP data for the entity
- validity (datetime.DateTime array): timestamps at which we
listed the entity.
"""
db = self.db
cols = list(db.entity_history_cols)
cols.remove('id')
db.mktemp_entity_history()
db.copy_to(entities, 'tmp_entity_history', cols, cur)
db.entity_history_add_from_temp()
@db_transaction_generator
def entity_get_from_lister_metadata(self, entities, cur=None):
"""Fetch entities from the database, matching with the lister and
associated metadata.
Args:
- entities: iterable of dictionaries containing the following keys:
- lister (uuid): uuid of the lister
- lister_metadata (dict): subset of the lister metadata used
for matching the entity
Returns:
A generator of fetched entities with all their attributes. If no
match was found, the returned entity's uuid is None.
"""
db = self.db
db.mktemp_entity_lister(cur)
mapped_entities = []
for i, entity in enumerate(entities):
mapped_entity = entity.copy()
mapped_entity['id'] = i
mapped_entities.append(mapped_entity)
db.copy_to(mapped_entities, 'tmp_entity_lister',
['id', 'lister', 'lister_metadata'], cur)
cur.execute('''select id, %s
from swh_entity_from_tmp_entity_lister()
order by id''' %
','.join(db.entity_cols))
for id, *entity_vals in cur:
returned_entity = entities[id].copy()
fetched_entity = dict(zip(db.entity_cols, entity_vals))
returned_entity['uuid'] = fetched_entity['uuid']
if fetched_entity['uuid']:
returned_entity.update(fetched_entity)
yield returned_entity
@db_transaction
def stat_counters(self, cur=None):
"""compute statistics about the number of tuples in various tables
Returns:
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 self.db.stat_counters()}

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