[dak/master] Add module to process policy queue uploads.
---
daklib/policy.py | 277 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 277 insertions(+), 0 deletions(-)
create mode 100644 daklib/policy.py
diff --git a/daklib/policy.py b/daklib/policy.py
new file mode 100644
index 0000000..c989f1f
--- /dev/null
+++ b/daklib/policy.py
@@ -0,0 +1,277 @@
+# Copyright (C) 2012, Ansgar Burchardt <ansgar@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""module to process policy queue uploads"""
+
+from .config import Config
+from .dbconn import BinaryMetadata, Component, MetadataKey, Override, OverrideType
+from .fstransactions import FilesystemTransaction
+from .regexes import re_file_changes, re_file_safe
+
+import errno
+import os
+import shutil
+import tempfile
+
+class UploadCopy(object):
+ """export a policy queue upload
+
+ This class can be used in a with-statements:
+
+ with UploadCopy(...) as copy:
+ ...
+
+ Doing so will provide a temporary copy of the upload in the directory
+ given by the `directory` attribute. The copy will be removed on leaving
+ the with-block.
+
+ Args:
+ upload (daklib.dbconn.PolicyQueueUpload)
+ """
+ def __init__(self, upload):
+ self.directory = None
+ self.upload = upload
+
+ def export(self, directory, mode=None, symlink=True):
+ """export a copy of the upload
+
+ Args:
+ directory (str)
+
+ Kwargs:
+ mode (int): permissions to use for the copied files
+ symlink (bool): use symlinks instead of copying the files (default: True)
+ """
+ with FilesystemTransaction() as fs:
+ source = self.upload.source
+ queue = self.upload.policy_queue
+
+ if source is not None:
+ for dsc_file in source.srcfiles:
+ f = dsc_file.poolfile
+ dst = os.path.join(directory, os.path.basename(f.filename))
+ fs.copy(f.fullpath, dst, mode=mode, symlink=symlink)
+ for binary in self.upload.binaries:
+ f = binary.poolfile
+ dst = os.path.join(directory, os.path.basename(f.filename))
+ fs.copy(f.fullpath, dst, mode=mode, symlink=symlink)
+
+ # copy byhand files
+ for byhand in self.upload.byhand:
+ src = os.path.join(queue.path, byhand.filename)
+ dst = os.path.join(directory, byhand.filename)
+ fs.copy(src, dst, mode=mode, symlink=symlink)
+
+ # copy .changes
+ src = os.path.join(queue.path, self.upload.changes.changesname)
+ dst = os.path.join(directory, self.upload.changes.changesname)
+ fs.copy(src, dst, mode=mode, symlink=symlink)
+
+ def __enter__(self):
+ assert self.directory is None
+
+ cnf = Config()
+ self.directory = tempfile.mkdtemp(dir=cnf.get('Dir::TempPath'))
+ self.export(self.directory, symlink=True)
+ return self
+
+ def __exit__(self, *args):
+ if self.directory is not None:
+ shutil.rmtree(self.directory)
+ self.directory = None
+ return None
+
+class PolicyQueueUploadHandler(object):
+ """process uploads to policy queues
+
+ This class allows to accept or reject uploads and to get a list of missing
+ overrides (for NEW processing).
+ """
+ def __init__(self, upload, session):
+ """initializer
+
+ Args:
+ upload (daklib.dbconn.PolicyQueueUpload): upload to process
+ session: database session
+ """
+ self.upload = upload
+ self.session = session
+
+ @property
+ def _overridesuite(self):
+ overridesuite = self.upload.target_suite
+ if overridesuite.overridesuite is not None:
+ overridesuite = self.session.query(Suite).filter_by(suite_name=overridesuite.overridesuite).one()
+ return overridesuite
+
+ def _source_override(self, component_name):
+ package = self.upload.source.source
+ suite = self._overridesuite
+ query = self.session.query(Override).filter_by(package=package, suite=suite) \
+ .join(OverrideType).filter(OverrideType.overridetype == 'dsc') \
+ .join(Component).filter(Component.component_name == component_name)
+ return query.first()
+
+ def _binary_override(self, binary, component_name):
+ package = binary.package
+ suite = self._overridesuite
+ overridetype = binary.binarytype
+ query = self.session.query(Override).filter_by(package=package, suite=suite) \
+ .join(OverrideType).filter(OverrideType.overridetype == overridetype) \
+ .join(Component).filter(Component.component_name == component_name)
+ return query.first()
+
+ def _binary_metadata(self, binary, key):
+ metadata_key = self.session.query(MetadataKey).filter_by(key=key).first()
+ if metadata_key is None:
+ return None
+ metadata = self.session.query(BinaryMetadata).filter_by(binary=binary, key=metadata_key).first()
+ if metadata is None:
+ return None
+ return metadata.value
+
+ @property
+ def _changes_prefix(self):
+ changesname = self.upload.changes.changesname
+ assert changesname.endswith('.changes')
+ assert re_file_changes.match(changesname)
+ return changesname[0:-8]
+
+ def accept(self):
+ """mark upload as accepted"""
+ assert len(self.missing_overrides()) == 0
+
+ fn1 = 'ACCEPT.{0}'.format(self._changes_prefix)
+ fn = os.path.join(self.upload.policy_queue.path, 'COMMENTS', fn1)
+ try:
+ fh = os.open(fn, os.O_CREAT | os.O_EXCL | os.O_WRONLY, 0o644)
+ os.write(fh, 'OK\n')
+ os.close(fh)
+ except OSError as e:
+ if e.errno == errno.EEXIST:
+ pass
+ else:
+ raise
+
+ def reject(self, reason):
+ """mark upload as rejected
+
+ Args:
+ reason (str): reason for the rejection
+ """
+ fn1 = 'REJECT.{0}'.format(self._changes_prefix)
+ assert re_file_safe.match(fn1)
+
+ fn = os.path.join(self.upload.policy_queue.path, 'COMMENTS', fn1)
+ try:
+ fh = os.open(fn, os.O_CREAT | os.O_EXCL | os.O_WRONLY)
+ os.write(fh, 'NOTOK\n')
+ os.write(fh, reason)
+ os.close(fh)
+ except OSError as e:
+ if e.errno == errno.EEXIST:
+ pass
+ else:
+ raise
+
+ def get_action(self):
+ """get current action
+
+ Returns:
+ string giving the current action, one of 'ACCEPT', 'ACCEPTED', 'REJECT'
+ """
+ changes_prefix = self._changes_prefix
+
+ for action in ('ACCEPT', 'ACCEPTED', 'REJECT'):
+ fn1 = '{0}.{1}'.format(action, changes_prefix)
+ fn = os.path.join(self.upload.policy_queue.path, 'COMMENTS', fn1)
+ if os.path.exists(fn):
+ return action
+
+ return None
+
+ def missing_overrides(self, hints=None):
+ """get missing override entries for the upload
+
+ Kwargs:
+ hints (list of dict): suggested hints for new overrides in the same
+ format as the return value
+
+ Returns:
+ list of dicts with the following keys:
+ package: package name
+ priority: default priority (from upload)
+ section: default section (from upload)
+ component: default component (from upload)
+ type: type of required override ('dsc', 'deb' or 'udeb')
+ All values are strings.
+ """
+ # TODO: use Package-List field
+ missing = []
+ components = set()
+
+ if hints is None:
+ hints = []
+ hints_map = dict([ ((o['type'], o['package']), o) for o in hints ])
+
+ for binary in self.upload.binaries:
+ priority = self._binary_metadata(binary, 'Priority')
+ section = self._binary_metadata(binary, 'Section')
+ component = 'main'
+ if section.find('/') != -1:
+ component = section.split('/', 1)[0]
+ override = self._binary_override(binary, component)
+ if override is None:
+ hint = hints_map.get((binary.binarytype, binary.package))
+ if hint is not None:
+ missing.append(hint)
+ component = hint['component']
+ else:
+ missing.append(dict(
+ package = binary.package,
+ priority = priority,
+ section = section,
+ component = component,
+ type = binary.binarytype,
+ ))
+ components.add(component)
+
+ source_component = '(unknown)'
+ for component in ('main', 'contrib', 'non-free'):
+ if component in components:
+ source_component = component
+ break
+
+ source = self.upload.source
+ if source is not None:
+ override = self._source_override(source_component)
+ if override is None:
+ hint = hints_map.get(('dsc', source.source))
+ if hint is not None:
+ missing.append(hint)
+ else:
+ section = 'misc'
+ if component != 'main':
+ section = "{0}/{1}".format(component, section)
+ missing.append(dict(
+ package = source.source,
+ priority = 'extra',
+ section = section,
+ component = source_component,
+ type = 'dsc',
+ ))
+
+ return missing
--
1.7.2.5
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