3 Create all the contents files
5 @contact: Debian FTPMaster <ftpmaster@debian.org>
6 @copyright: 2008, 2009 Michael Casadevall <mcasadevall@debian.org>
7 @copyright: 2009 Mike O'Connor <stew@debian.org>
8 @license: GNU General Public License version 2 or later
11 ################################################################################
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2 of the License, or
16 # (at your option) any later version.
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program; if not, write to the Free Software
25 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 ################################################################################
29 # <Ganneff> there is the idea to slowly replace contents files
30 # <Ganneff> with a new generation of such files.
31 # <Ganneff> having more info.
33 # <Ganneff> of course that wont help for now where we need to generate them :)
35 ################################################################################
45 from daklib import utils
46 from daklib.binary import Binary
47 from daklib.config import Config
48 from daklib.dbconn import *
50 ################################################################################
52 def usage (exit_code=0):
53 print """Usage: dak contents [options] command [arguments]
57 generate Contents-$arch.gz files
60 scan the debs in the existing pool and load contents in the the database
63 remove files/paths which are no longer referenced by a binary
67 show this help and exit
70 show verbose information messages
73 supress all output but errors
75 -s, --suite={stable,testing,unstable,...}
76 only operate on a single suite
80 ################################################################################
82 # where in dak.conf all of our configuration will be stowed
84 options_prefix = "Contents"
85 options_prefix = "%s::Options" % options_prefix
87 log = logging.getLogger()
89 ################################################################################
91 class EndOfContents(object):
93 A sentry object for the end of the filename stream
97 class GzippedContentWriter(object):
99 An object which will write contents out to a Contents-$arch.gz
100 file on a separate thread
103 header = None # a class object holding the header section of contents file
105 def __init__(self, filename):
107 @type filename: string
108 @param filename: the name of the file to write to
110 self.queue = Queue.Queue()
111 self.current_file = None
112 self.first_package = True
113 self.output = self.open_file(filename)
114 self.thread = threading.Thread(target=self.write_thread,
115 name='Contents writer')
118 def open_file(self, filename):
120 opens a gzip stream to the contents file
122 filepath = Config()["Contents::Root"] + filename
123 filedir = os.path.dirname(filepath)
124 if not os.path.isdir(filedir):
126 return gzip.open(filepath, "w")
128 def write(self, filename, section, package):
130 enqueue content to be written to the file on a separate thread
132 self.queue.put((filename,section,package))
134 def write_thread(self):
136 the target of a Thread which will do the actual writing
139 next = self.queue.get()
140 if isinstance(next, EndOfContents):
141 self.output.write('\n')
145 (filename,section,package)=next
146 if next != self.current_file:
147 # this is the first file, so write the header first
148 if not self.current_file:
149 self.output.write(self._getHeader())
151 self.output.write('\n%s\t' % filename)
152 self.first_package = True
154 self.current_file=filename
156 if not self.first_package:
157 self.output.write(',')
159 self.first_package=False
160 self.output.write('%s/%s' % (section,package))
164 enqueue the sentry object so that writers will know to terminate
166 self.queue.put(EndOfContents())
169 def _getHeader(self):
171 Internal method to return the header for Contents.gz files
173 This is boilerplate which explains the contents of the file and how
176 if not GzippedContentWriter.header:
177 if Config().has_key("Contents::Header"):
179 h = open(os.path.join( Config()["Dir::Templates"],
180 Config()["Contents::Header"] ), "r")
181 GzippedContentWriter.header = h.read()
184 log.error( "error opening header file: %d\n%s" % (Config()["Contents::Header"],
185 traceback.format_exc() ))
186 GzippedContentWriter.header = None
188 GzippedContentWriter.header = None
190 return GzippedContentWriter.header
193 class Contents(object):
195 Class capable of generating Contents-$arch.gz files
201 def reject(self, message):
202 log.error("E: %s" % message)
206 remove files/paths from the DB which are no longer referenced
207 by binaries and clean the temporary table
209 s = DBConn().session()
211 # clear out all of the temporarily stored content associations
212 # this should be run only after p-a has run. after a p-a
213 # run we should have either accepted or rejected every package
214 # so there should no longer be anything in the queue
215 s.query(PendingContentAssociation).delete()
217 # delete any filenames we are storing which have no binary associated
219 cafq = s.query(ContentAssociation.filename_id).distinct()
220 cfq = s.query(ContentFilename)
221 cfq = cfq.filter(~ContentFilename.cafilename_id.in_(cafq))
224 # delete any paths we are storing which have no binary associated with
226 capq = s.query(ContentAssociation.filepath_id).distinct()
227 cpq = s.query(ContentFilepath)
228 cpq = cpq.filter(~ContentFilepath.cafilepath_id.in_(capq))
236 scan the existing debs in the pool to populate the contents database tables
238 pooldir = Config()[ 'Dir::Pool' ]
240 s = DBConn().session()
242 for suite in s.query(Suite).all():
243 for arch in get_suite_architectures(suite.suite_name, skipsrc=True, skipall=True, session=s):
244 q = s.query(BinAssociation).join(Suite)
245 q = q.join(Suite).filter_by(suite_name=suite.suite_name)
246 q = q.join(DBBinary).join(Architecture).filter_by(arch.arch_string)
248 filename = ba.binary.poolfile.filename
249 # Check for existing contents
250 existingq = s.query(ContentAssociations).filter_by(binary_pkg=ba.binary_id).limit(1)
251 if existingq.count() > 0:
252 log.debug( "already imported: %s" % (filename))
254 # We don't have existing contents so import them
255 log.debug( "scanning: %s" % (filename) )
256 debfile = os.path.join(pooldir, filename)
257 if os.path.exists(debfile):
258 Binary(debfile, self.reject).scan_package(ba.binary_id, True)
260 log.error("missing .deb: %s" % filename)
265 Generate Contents-$arch.gz files for every available arch in each given suite.
267 session = DBConn().session()
269 arch_all_id = get_architecture("all", session).arch_id
271 # The MORE fun part. Ok, udebs need their own contents files, udeb, and udeb-nf (not-free)
272 # This is HORRIBLY debian specific :-/
273 for dtype, section, fn_pattern in \
274 [('deb', None, "dists/%s/Contents-%s.gz"),
275 ('udeb', "debian-installer", "dists/%s/Contents-udeb-%s.gz"),
276 ('udeb', "non-free/debian-installer", "dists/%s/Contents-udeb-nf-%s.gz")]:
278 overridetype = get_override_type(dtype, session)
280 # For udebs, we only look in certain sections (see the for loop above)
281 if section is not None:
282 section = get_section(section, session)
285 for suite in which_suites():
286 # Which architectures do we need to work on
287 arch_list = get_suite_architectures(suite.suite_name, skipsrc=True, skipall=True, session=session)
289 # Set up our file writer dictionary
292 # One file writer per arch
293 for arch in arch_list:
294 file_writers[arch.arch_id] = GzippedContentWriter(fn_pattern % (suite, arch.arch_string))
296 for r in get_suite_contents(suite, overridetype, section, session=session).fetchall():
297 filename, section, package, arch_id = r
299 if arch_id == arch_all_id:
300 # It's arch all, so all contents files get it
301 for writer in file_writers.values():
302 writer.write(filename, section, package)
304 if file_writers.has_key(arch_id):
305 file_writers[arch_id].write(filename, section, package)
308 # close all the files
309 for writer in file_writers.values():
312 ################################################################################
317 arguments = [('h',"help", "%s::%s" % (options_prefix,"Help")),
318 ('s',"suite", "%s::%s" % (options_prefix,"Suite"),"HasArg"),
319 ('q',"quiet", "%s::%s" % (options_prefix,"Quiet")),
320 ('v',"verbose", "%s::%s" % (options_prefix,"Verbose")),
323 commands = {'generate' : Contents.generate,
324 'bootstrap' : Contents.bootstrap,
325 'cruft' : Contents.cruft,
328 args = apt_pkg.ParseCommandLine(cnf.Cnf, arguments,sys.argv)
330 if (len(args) < 1) or not commands.has_key(args[0]):
333 if cnf.has_key("%s::%s" % (options_prefix,"Help")):
337 if cnf.has_key("%s::%s" % (options_prefix,"Quiet")):
340 elif cnf.has_key("%s::%s" % (options_prefix,"Verbose")):
344 logging.basicConfig( level=level,
345 format='%(asctime)s %(levelname)s %(message)s',
346 stream = sys.stderr )
348 commands[args[0]](Contents())
350 def which_suites(session):
352 return a list of suites to operate on
354 if Config().has_key( "%s::%s" %(options_prefix,"Suite")):
355 suites = utils.split_args(Config()[ "%s::%s" %(options_prefix,"Suite")])
357 suites = Config().SubTree("Suite").List()
359 return [get_suite(s.lower(), session) for s in suites]
362 if __name__ == '__main__':