from daklib.config import Config
from multiprocessing import Pool
-from subprocess import Popen, PIPE
+from shutil import rmtree
+from subprocess import Popen, PIPE, check_call
+from tempfile import mkdtemp
import os.path
-class ContentsWriter(object):
+class BinaryContentsWriter(object):
'''
- ContentsWriter writes the Contents-$arch.gz files.
+ BinaryContentsWriter writes the Contents-$arch.gz files.
'''
def __init__(self, suite, architecture, overridetype, component = None):
- '''
- The constructor clones its arguments into a new session object to make
- sure that the new ContentsWriter object can be executed in a different
- thread.
- '''
self.suite = suite
self.architecture = architecture
self.overridetype = overridetype
gzip.stdin.close()
output_file.close()
gzip.wait()
- try:
- os.remove(final_filename)
- except:
- pass
+ os.chmod(temp_filename, 0664)
+ os.rename(temp_filename, final_filename)
+
+
+class SourceContentsWriter(object):
+ '''
+ SourceContentsWriter writes the Contents-source.gz files.
+ '''
+ def __init__(self, suite, component):
+ self.suite = suite
+ self.component = component
+ self.session = suite.session()
+
+ def query(self):
+ '''
+ Returns a query object that is doing most of the work.
+ '''
+ params = {
+ 'suite_id': self.suite.suite_id,
+ 'component_id': self.component.component_id,
+ }
+
+ sql = '''
+create temp table newest_sources (
+ id integer primary key,
+ source text);
+
+create index sources_binaries_by_source on newest_sources (source);
+
+insert into newest_sources (id, source)
+ select distinct on (source) s.id, s.source from source s
+ join files f on f.id = s.file
+ join location l on l.id = f.location
+ where s.id in (select source from src_associations where suite = :suite_id)
+ and l.component = :component_id
+ order by source, version desc;
+
+select sc.file, string_agg(s.source, ',' order by s.source) as pkglist
+ from newest_sources s, src_contents sc
+ where s.id = sc.source_id group by sc.file'''
+
+ return self.session.query("file", "pkglist").from_statement(sql). \
+ params(params)
+
+ def formatline(self, filename, package_list):
+ '''
+ Returns a formatted string for the filename argument.
+ '''
+ return "%s\t%s\n" % (filename, package_list)
+
+ def fetch(self):
+ '''
+ Yields a new line of the Contents-source.gz file in filename order.
+ '''
+ for filename, package_list in self.query().yield_per(100):
+ yield self.formatline(filename, package_list)
+ # end transaction to return connection to pool
+ self.session.rollback()
+
+ def get_list(self):
+ '''
+ Returns a list of lines for the Contents-source.gz file.
+ '''
+ return [item for item in self.fetch()]
+
+ def output_filename(self):
+ '''
+ Returns the name of the output file.
+ '''
+ values = {
+ 'root': Config()['Dir::Root'],
+ 'suite': self.suite.suite_name,
+ 'component': self.component.component_name
+ }
+ return "%(root)s/dists/%(suite)s/%(component)s/Contents-source.gz" % values
+
+ def write_file(self):
+ '''
+ Write the output file.
+ '''
+ command = ['gzip', '--rsyncable']
+ final_filename = self.output_filename()
+ temp_filename = final_filename + '.new'
+ output_file = open(temp_filename, 'w')
+ gzip = Popen(command, stdin = PIPE, stdout = output_file)
+ for item in self.fetch():
+ gzip.stdin.write(item)
+ gzip.stdin.close()
+ output_file.close()
+ gzip.wait()
+ os.chmod(temp_filename, 0664)
os.rename(temp_filename, final_filename)
- os.chmod(final_filename, 0664)
+
+def generate_helper(suite_id, arch_id, overridetype_id, component_id = None):
+ '''
+ This function is called in a new subprocess.
+ '''
+ session = DBConn().session()
+ suite = Suite.get(suite_id, session)
+ architecture = Architecture.get(arch_id, session)
+ overridetype = OverrideType.get(overridetype_id, session)
+ log_message = [suite.suite_name, architecture.arch_string, overridetype.overridetype]
+ if component_id is None:
+ component = None
+ else:
+ component = Component.get(component_id, session)
+ log_message.append(component.component_name)
+ contents_writer = BinaryContentsWriter(suite, architecture, overridetype, component)
+ contents_writer.write_file()
+ return log_message
+
+class ContentsWriter(object):
+ '''
+ Loop over all suites, architectures, overridetypes, and components to write
+ all contents files.
+ '''
@classmethod
def log_result(class_, result):
'''
pool.join()
session.close()
-def generate_helper(suite_id, arch_id, overridetype_id, component_id = None):
- '''
- This function is called in a new subprocess.
- '''
- session = DBConn().session()
- suite = Suite.get(suite_id, session)
- architecture = Architecture.get(arch_id, session)
- overridetype = OverrideType.get(overridetype_id, session)
- log_message = [suite.suite_name, architecture.arch_string, overridetype.overridetype]
- if component_id is None:
- component = None
- else:
- component = Component.get(component_id, session)
- log_message.append(component.component_name)
- contents_writer = ContentsWriter(suite, architecture, overridetype, component)
- contents_writer.write_file()
- return log_message
-
-class ContentsScanner(object):
+class BinaryContentsScanner(object):
'''
- ContentsScanner provides a threadsafe method scan() to scan the contents of
- a DBBinary object.
+ BinaryContentsScanner provides a threadsafe method scan() to scan the
+ contents of a DBBinary object.
'''
def __init__(self, binary_id):
'''
processed = query.count()
pool = Pool()
for binary in query.yield_per(100):
- pool.apply_async(scan_helper, (binary.binary_id, ))
+ pool.apply_async(binary_scan_helper, (binary.binary_id, ))
pool.close()
pool.join()
remaining = remaining()
session.close()
return { 'processed': processed, 'remaining': remaining }
-def scan_helper(binary_id):
+def binary_scan_helper(binary_id):
'''
This function runs in a subprocess.
'''
- scanner = ContentsScanner(binary_id)
+ scanner = BinaryContentsScanner(binary_id)
scanner.scan()
+
+
+class UnpackedSource(object):
+ '''
+ UnpackedSource extracts a source package into a temporary location and
+ gives you some convinient function for accessing it.
+ '''
+ def __init__(self, dscfilename):
+ '''
+ The dscfilename is a name of a DSC file that will be extracted.
+ '''
+ self.root_directory = os.path.join(mkdtemp(), 'root')
+ command = ('dpkg-source', '--no-copy', '--no-check', '-x', dscfilename,
+ self.root_directory)
+ # dpkg-source does not have a --quiet option
+ devnull = open(os.devnull, 'w')
+ check_call(command, stdout = devnull, stderr = devnull)
+ devnull.close()
+
+ def get_root_directory(self):
+ '''
+ Returns the name of the package's root directory which is the directory
+ where the debian subdirectory is located.
+ '''
+ return self.root_directory
+
+ def get_changelog_file(self):
+ '''
+ Returns a file object for debian/changelog or None if no such file exists.
+ '''
+ changelog_name = os.path.join(self.root_directory, 'debian', 'changelog')
+ try:
+ return open(changelog_name)
+ except IOError:
+ return None
+
+ def get_all_filenames(self):
+ '''
+ Returns an iterator over all filenames. The filenames will be relative
+ to the root directory.
+ '''
+ skip = len(self.root_directory) + 1
+ for root, _, files in os.walk(self.root_directory):
+ for name in files:
+ yield os.path.join(root[skip:], name)
+
+ def cleanup(self):
+ '''
+ Removes all temporary files.
+ '''
+ if self.root_directory is None:
+ return
+ parent_directory = os.path.dirname(self.root_directory)
+ rmtree(parent_directory)
+ self.root_directory = None
+
+ def __del__(self):
+ '''
+ Enforce cleanup.
+ '''
+ self.cleanup()
+
+
+class SourceContentsScanner(object):
+ '''
+ SourceContentsScanner provides a method scan() to scan the contents of a
+ DBSource object.
+ '''
+ def __init__(self, source_id):
+ '''
+ The argument source_id is the id of the DBSource object that
+ should be scanned.
+ '''
+ self.source_id = source_id
+
+ def scan(self):
+ '''
+ This method does the actual scan and fills in the associated SrcContents
+ property. It commits any changes to the database.
+ '''
+ session = DBConn().session()
+ source = session.query(DBSource).get(self.source_id)
+ fileset = set(source.scan_contents())
+ for filename in fileset:
+ source.contents.append(SrcContents(file = filename))
+ session.commit()
+ session.close()
+
+ @classmethod
+ def scan_all(class_, limit = None):
+ '''
+ The class method scan_all() scans all source using multiple processes.
+ The number of sources to be scanned can be limited with the limit
+ argument. Returns the number of processed and remaining packages as a
+ dict.
+ '''
+ session = DBConn().session()
+ query = session.query(DBSource).filter(DBSource.contents == None)
+ remaining = query.count
+ if limit is not None:
+ query = query.limit(limit)
+ processed = query.count()
+ pool = Pool()
+ for source in query.yield_per(100):
+ pool.apply_async(source_scan_helper, (source.source_id, ))
+ pool.close()
+ pool.join()
+ remaining = remaining()
+ session.close()
+ return { 'processed': processed, 'remaining': remaining }
+
+def source_scan_helper(source_id):
+ '''
+ This function runs in a subprocess.
+ '''
+ try:
+ scanner = SourceContentsScanner(source_id)
+ scanner.scan()
+ except Exception, e:
+ print e
+
projects / dak.git / blobdiff