]> git.decadent.org.uk Git - dak.git/blobdiff - dak/contents.py
Remove files that are (no longer) generated
[dak.git] / dak / contents.py
index 9ac99951400e675aade746683566ebeaeaf73ce8..407b3c06475dfae80229d676175bbec415d7fd35 100755 (executable)
@@ -5,6 +5,7 @@ Create all the contents files
 @contact: Debian FTPMaster <ftpmaster@debian.org>
 @copyright: 2008, 2009 Michael Casadevall <mcasadevall@debian.org>
 @copyright: 2009 Mike O'Connor <stew@debian.org>
+@copyright: 2011 Torsten Werner <twerner@debian.org>
 @license: GNU General Public License version 2 or later
 """
 
@@ -35,328 +36,127 @@ Create all the contents files
 ################################################################################
 
 import sys
-import os
-import logging
-import math
-import gzip
-import threading
-import Queue
 import apt_pkg
-from daklib import utils
-from daklib.binary import Binary
+
 from daklib.config import Config
 from daklib.dbconn import *
+from daklib.contents import BinaryContentsScanner, ContentsWriter, \
+    SourceContentsScanner
+from daklib import daklog
+from daklib import utils
 
 ################################################################################
 
 def usage (exit_code=0):
-    print """Usage: dak contents [options] command [arguments]
+    print """Usage: dak contents [options] subcommand
 
-COMMANDS
+SUBCOMMANDS
     generate
         generate Contents-$arch.gz files
 
-    bootstrap
-        scan the debs in the existing pool and load contents in the the database
+    scan-source
+        scan the source packages in the existing pool and load contents into
+        the src_contents table
 
-    cruft
-        remove files/paths which are no longer referenced by a binary
+    scan-binary
+        scan the (u)debs in the existing pool and load contents into the
+        bin_contents table
 
 OPTIONS
      -h, --help
         show this help and exit
 
-     -v, --verbose
-        show verbose information messages
-
-     -q, --quiet
-        supress all output but errors
+OPTIONS for generate
+     -a, --archive=ARCHIVE
+        only operate on suites in the specified archive
 
      -s, --suite={stable,testing,unstable,...}
-        only operate on a single suite
+        only operate on specified suite names
+
+     -c, --component={main,contrib,non-free}
+        only operate on specified components
+
+     -f, --force
+        write Contents files for suites marked as untouchable, too
+
+OPTIONS for scan-source and scan-binary
+     -l, --limit=NUMBER
+        maximum number of packages to scan
 """
     sys.exit(exit_code)
 
 ################################################################################
 
-# where in dak.conf all of our configuration will be stowed
+def write_all(cnf, archive_names = [], suite_names = [], component_names = [], force = None):
+    Logger = daklog.Logger('contents generate')
+    ContentsWriter.write_all(Logger, archive_names, suite_names, component_names, force)
+    Logger.close()
 
-options_prefix = "Contents"
-options_prefix = "%s::Options" % options_prefix
+################################################################################
 
-log = logging.getLogger()
+def binary_scan_all(cnf, limit):
+    Logger = daklog.Logger('contents scan-binary')
+    result = BinaryContentsScanner.scan_all(limit)
+    processed = '%(processed)d packages processed' % result
+    remaining = '%(remaining)d packages remaining' % result
+    Logger.log([processed, remaining])
+    Logger.close()
 
 ################################################################################
 
-class EndOfContents(object):
-    """
-    A sentry object for the end of the filename stream
-    """
-    pass
-
-class GzippedContentWriter(object):
-    """
-    An object which will write contents out to a Contents-$arch.gz
-    file on a separate thread
-    """
-
-    header = None # a class object holding the header section of contents file
-
-    def __init__(self, filename):
-        """
-        @type filename: string
-        @param filename: the name of the file to write to
-        """
-        self.queue = Queue.Queue()
-        self.current_file = None
-        self.first_package = True
-        self.output = self.open_file(filename)
-        self.thread = threading.Thread(target=self.write_thread,
-                                       name='Contents writer')
-        self.thread.start()
-
-    def open_file(self, filename):
-        """
-        opens a gzip stream to the contents file
-        """
-        filepath = Config()["Contents::Root"] + filename
-        filedir = os.path.dirname(filepath)
-        if not os.path.isdir(filedir):
-            os.makedirs(filedir)
-        return gzip.open(filepath, "w")
-
-    def write(self, filename, section, package):
-        """
-        enqueue content to be written to the file on a separate thread
-        """
-        self.queue.put((filename,section,package))
-
-    def write_thread(self):
-        """
-        the target of a Thread which will do the actual writing
-        """
-        while True:
-            next = self.queue.get()
-            if isinstance(next, EndOfContents):
-                self.output.write('\n')
-                self.output.close()
-                break
-
-            (filename,section,package)=next
-            if next != self.current_file:
-                # this is the first file, so write the header first
-                if not self.current_file:
-                    self.output.write(self._getHeader())
-
-                self.output.write('\n%s\t' % filename)
-                self.first_package = True
-
-            self.current_file=filename
-
-            if not self.first_package:
-                self.output.write(',')
-            else:
-                self.first_package=False
-            self.output.write('%s/%s' % (section,package))
-
-    def finish(self):
-        """
-        enqueue the sentry object so that writers will know to terminate
-        """
-        self.queue.put(EndOfContents())
-
-    @classmethod
-    def _getHeader(self):
-        """
-        Internal method to return the header for Contents.gz files
-
-        This is boilerplate which explains the contents of the file and how
-        it can be used.
-        """
-        if not GzippedContentWriter.header:
-            if Config().has_key("Contents::Header"):
-                try:
-                    h = open(os.path.join( Config()["Dir::Templates"],
-                                           Config()["Contents::Header"] ), "r")
-                    GzippedContentWriter.header = h.read()
-                    h.close()
-                except:
-                    log.error( "error opening header file: %d\n%s" % (Config()["Contents::Header"],
-                                                                      traceback.format_exc() ))
-                    GzippedContentWriter.header = None
-            else:
-                GzippedContentWriter.header = None
-
-        return GzippedContentWriter.header
-
-
-class Contents(object):
-    """
-    Class capable of generating Contents-$arch.gz files
-    """
-
-    def __init__(self):
-        self.header = None
-
-    def reject(self, message):
-        log.error("E: %s" % message)
-
-    def cruft(self):
-        """
-        remove files/paths from the DB which are no longer referenced
-        by binaries and clean the temporary table
-        """
-        s = DBConn().session()
-
-        # clear out all of the temporarily stored content associations
-        # this should be run only after p-a has run.  after a p-a
-        # run we should have either accepted or rejected every package
-        # so there should no longer be anything in the queue
-        s.query(PendingContentAssociation).delete()
-
-        # delete any filenames we are storing which have no binary associated
-        # with them
-        cafq = s.query(ContentAssociation.filename_id).distinct()
-        cfq = s.query(ContentFilename)
-        cfq = cfq.filter(~ContentFilename.cafilename_id.in_(cafq))
-        cfq.delete()
-
-        # delete any paths we are storing which have no binary associated with
-        # them
-        capq = s.query(ContentAssociation.filepath_id).distinct()
-        cpq = s.query(ContentFilepath)
-        cpq = cpq.filter(~ContentFilepath.cafilepath_id.in_(capq))
-        cpq.delete()
-
-        s.commit()
-
-
-    def bootstrap(self):
-        """
-        scan the existing debs in the pool to populate the contents database tables
-        """
-        pooldir = Config()[ 'Dir::Pool' ]
-
-        s = DBConn().session()
-
-        for suite in s.query(Suite).all():
-            for arch in get_suite_architectures(suite.suite_name, skipsrc=True, skipall=True, session=s):
-                q = s.query(BinAssociation).join(Suite)
-                q = q.join(Suite).filter_by(suite_name=suite.suite_name)
-                q = q.join(DBBinary).join(Architecture).filter_by(arch.arch_string)
-                for ba in q:
-                    filename = ba.binary.poolfile.filename
-                    # Check for existing contents
-                    existingq = s.query(ContentAssociations).filter_by(binary_pkg=ba.binary_id).limit(1)
-                    if existingq.count() > 0:
-                        log.debug( "already imported: %s" % (filename))
-                    else:
-                        # We don't have existing contents so import them
-                        log.debug( "scanning: %s" % (filename) )
-                        debfile = os.path.join(pooldir, filename)
-                        if os.path.exists(debfile):
-                            Binary(debfile, self.reject).scan_package(ba.binary_id, True)
-                        else:
-                            log.error("missing .deb: %s" % filename)
-
-
-    def generate(self):
-        """
-        Generate Contents-$arch.gz files for every available arch in each given suite.
-        """
-        session = DBConn().session()
-
-        arch_all_id = get_architecture("all", session).arch_id
-
-        # The MORE fun part. Ok, udebs need their own contents files, udeb, and udeb-nf (not-free)
-        # This is HORRIBLY debian specific :-/
-        for dtype, section, fn_pattern in \
-              [('deb',  None,                        "dists/%s/Contents-%s.gz"),
-               ('udeb', "debian-installer",          "dists/%s/Contents-udeb-%s.gz"),
-               ('udeb', "non-free/debian-installer", "dists/%s/Contents-udeb-nf-%s.gz")]:
-
-            overridetype = get_override_type(dtype, session)
-
-            # For udebs, we only look in certain sections (see the for loop above)
-            if section is not None:
-                section = get_section(section, session)
-
-            # Get our suites
-            for suite in which_suites():
-                # Which architectures do we need to work on
-                arch_list = get_suite_architectures(suite.suite_name, skipsrc=True, skipall=True, session=session)
-
-                # Set up our file writer dictionary
-                file_writers = {}
-                try:
-                    # One file writer per arch
-                    for arch in arch_list:
-                        file_writers[arch.arch_id] = GzippedContentWriter(fn_pattern % (suite, arch.arch_string))
-
-                    for r in get_suite_contents(suite, overridetype, section, session=session).fetchall():
-                        filename, section, package, arch_id = r
-
-                        if arch_id == arch_all_id:
-                            # It's arch all, so all contents files get it
-                            for writer in file_writers.values():
-                                writer.write(filename, section, package)
-                        else:
-                            if file_writers.has_key(arch_id):
-                                file_writers[arch_id].write(filename, section, package)
-
-                finally:
-                    # close all the files
-                    for writer in file_writers.values():
-                        writer.finish()
+def source_scan_all(cnf, limit):
+    Logger = daklog.Logger('contents scan-source')
+    result = SourceContentsScanner.scan_all(limit)
+    processed = '%(processed)d packages processed' % result
+    remaining = '%(remaining)d packages remaining' % result
+    Logger.log([processed, remaining])
+    Logger.close()
 
 ################################################################################
 
 def main():
     cnf = Config()
-
-    arguments = [('h',"help", "%s::%s" % (options_prefix,"Help")),
-                 ('s',"suite", "%s::%s" % (options_prefix,"Suite"),"HasArg"),
-                 ('q',"quiet", "%s::%s" % (options_prefix,"Quiet")),
-                 ('v',"verbose", "%s::%s" % (options_prefix,"Verbose")),
+    cnf['Contents::Options::Help'] = ''
+    cnf['Contents::Options::Suite'] = ''
+    cnf['Contents::Options::Component'] = ''
+    cnf['Contents::Options::Limit'] = ''
+    cnf['Contents::Options::Force'] = ''
+    arguments = [('h', "help",      'Contents::Options::Help'),
+                 ('a', 'archive',   'Contents::Options::Archive',   'HasArg'),
+                 ('s', "suite",     'Contents::Options::Suite',     "HasArg"),
+                 ('c', "component", 'Contents::Options::Component', "HasArg"),
+                 ('l', "limit",     'Contents::Options::Limit',     "HasArg"),
+                 ('f', "force",     'Contents::Options::Force'),
                 ]
+    args = apt_pkg.parse_commandline(cnf.Cnf, arguments, sys.argv)
+    options = cnf.subtree('Contents::Options')
 
-    commands = {'generate' : Contents.generate,
-                'bootstrap' : Contents.bootstrap,
-                'cruft' : Contents.cruft,
-                }
-
-    args = apt_pkg.ParseCommandLine(cnf.Cnf, arguments,sys.argv)
-
-    if (len(args) < 1) or not commands.has_key(args[0]):
-        usage()
-
-    if cnf.has_key("%s::%s" % (options_prefix,"Help")):
+    if (len(args) != 1) or options['Help']:
         usage()
 
-    level=logging.INFO
-    if cnf.has_key("%s::%s" % (options_prefix,"Quiet")):
-        level=logging.ERROR
+    limit = None
+    if len(options['Limit']) > 0:
+        limit = int(options['Limit'])
 
-    elif cnf.has_key("%s::%s" % (options_prefix,"Verbose")):
-        level=logging.DEBUG
+    if args[0] == 'scan-source':
+        source_scan_all(cnf, limit)
+        return
 
+    if args[0] == 'scan-binary':
+        binary_scan_all(cnf, limit)
+        return
 
-    logging.basicConfig( level=level,
-                         format='%(asctime)s %(levelname)s %(message)s',
-                         stream = sys.stderr )
+    archive_names   = utils.split_args(options['Archive'])
+    suite_names     = utils.split_args(options['Suite'])
+    component_names = utils.split_args(options['Component'])
 
-    commands[args[0]](Contents())
+    force = bool(options['Force'])
 
-def which_suites(session):
-    """
-    return a list of suites to operate on
-    """
-    if Config().has_key( "%s::%s" %(options_prefix,"Suite")):
-        suites = utils.split_args(Config()[ "%s::%s" %(options_prefix,"Suite")])
-    else:
-        suites = Config().SubTree("Suite").List()
+    if args[0] == 'generate':
+        write_all(cnf, archive_names, suite_names, component_names, force)
+        return
 
-    return [get_suite(s.lower(), session) for s in suites]
+    usage()
 
 
 if __name__ == '__main__':