]> git.decadent.org.uk Git - dak.git/blobdiff - dak/contents.py
i think contents are actually working on separate thread now?
[dak.git] / dak / contents.py
old mode 100644 (file)
new mode 100755 (executable)
index 2e1d05d..be1e6d0
@@ -36,14 +36,16 @@ Create all the contents files
 
 import sys
 import os
-import tempfile
 import logging
 import math
 import gzip
+import threading
+import Queue
 import apt_pkg
 from daklib import utils
-from daklib.Config import Config
-from daklib.DBConn import DBConn
+from daklib.binary import Binary
+from daklib.config import Config
+from daklib.dbconn import DBConn
 ################################################################################
 
 def usage (exit_code=0):
@@ -70,10 +72,7 @@ OPTIONS
         supress all output but errors
 
      -s, --suite={stable,testing,unstable,...}
-        only operate on a signle suite
-
-     -a, --arch={i386,amd64}
-        only operate on a signle architecture
+        only operate on a single suite
 """
     sys.exit(exit_code)
 
@@ -82,137 +81,226 @@ OPTIONS
 # where in dak.conf all of our configuration will be stowed
 
 options_prefix = "Contents"
-options_prefix = "%s::Opitons" % options_prefix
-header_prefix = "%s::Header" % options_prefix
+options_prefix = "%s::Options" % options_prefix
 
 log = logging.getLogger()
 
 ################################################################################
 
-latin1_q = """SET CLIENT_ENCODING TO 'LATIN1'"""
-
-arches_q = """PREPARE arches_q as
+# get all the arches delivered for a given suite
+# this should probably exist somehere common
+arches_q = """PREPARE arches_q(int) as
               SELECT s.architecture, a.arch_string
               FROM suite_architectures s
               JOIN architecture a ON (s.architecture=a.id)
                   WHERE suite = $1"""
 
-debs_q = """PREPARE debs_q as
+# find me the .deb for a given binary id
+debs_q = """PREPARE debs_q(int, int) as
               SELECT b.id, f.filename FROM bin_assoc_by_arch baa
               JOIN binaries b ON baa.bin=b.id
               JOIN files f ON b.file=f.id
               WHERE suite = $1
                   AND arch = $2"""
 
-olddeb_q = """PREPARE olddeb_q as
+# ask if we already have contents associated with this binary
+olddeb_q = """PREPARE olddeb_q(int) as
               SELECT 1 FROM content_associations
               WHERE binary_pkg = $1
               LIMIT 1"""
 
-contents_q = """PREPARE contents_q as
+# find me all of the contents for a given .deb
+contents_q = """PREPARE contents_q(int,int) as
+                SELECT (p.path||'/'||n.file) AS fn,
+                        s.section,
+                        b.package,
+                        b.architecture
+               FROM content_associations c join content_file_paths p ON (c.filepath=p.id)
+               JOIN content_file_names n ON (c.filename=n.id)
+               JOIN binaries b ON (b.id=c.binary_pkg)
+               JOIN override o ON (o.package=b.package)
+               JOIN section s ON (s.id=o.section)
+               WHERE o.suite = $1 AND o.type = $2
+               AND b.type='deb'
+               ORDER BY fn"""
+
+# find me all of the contents for a given .udeb
+udeb_contents_q = """PREPARE udeb_contents_q(int,int,int) as
               SELECT (p.path||'/'||n.file) AS fn,
-                      comma_separated_list(s.section||'/'||b.package)
-              FROM content_associations c
-              JOIN content_file_paths p ON (c.filepath=p.id)
-              JOIN content_file_names n ON (c.filename=n.id)
-              JOIN binaries b ON (b.id=c.binary_pkg)
-              JOIN bin_associations ba ON (b.id=ba.bin)
-              JOIN override o ON (o.package=b.package)
-              JOIN section s ON (s.id=o.section)
-              WHERE (b.architecture = $1 OR b.architecture = $2)
-                  AND ba.suite = $3
-                  AND o.suite = $4
-                  AND b.type = 'deb'
-                  AND o.type = '7'
-              GROUP BY fn
-              ORDER BY fn"""
-
-udeb_contents_q = """PREPARE udeb_contents_q as
-              SELECT (p.path||'/'||n.file) as fn,
-                      comma_separated_list(s.section||'/'||b.package)
-              FROM content_associations c
-              JOIN content_file_paths p ON (c.filepath=p.id)
-              JOIN content_file_names n ON (c.filename=n.id)
-              JOIN binaries b ON (b.id=c.binary_pkg)
-              JOIN bin_associations ba ON (b.id=ba.bin)
-              JOIN override o ON (o.package=b.package)
-              JOIN section s ON (s.id=o.section)
-              WHERE s.id = $1
-                  AND ba.suite = $2
-                  AND o.suite = $3
-                  AND b.type = 'udeb'
-                  AND o.type = '8'
-              GROUP BY fn
-              ORDER BY fn"""
+                        s.section,
+                        b.package,
+                        b.architecture
+               FROM content_associations c join content_file_paths p ON (c.filepath=p.id)
+               JOIN content_file_names n ON (c.filename=n.id)
+               JOIN binaries b ON (b.id=c.binary_pkg)
+               JOIN override o ON (o.package=b.package)
+               JOIN section s ON (s.id=o.section)
+               WHERE o.suite = $1 AND o.type = $2
+               AND s.id = $3
+               AND b.type='udeb'
+               ORDER BY fn"""
+
+#               FROM content_file_paths p join content_associations c ON (c.filepath=p.id)
+#               JOIN content_file_names n ON (c.filename=n.id)
+#               JOIN binaries b ON (b.id=c.binary_pkg)
+#               JOIN override o ON (o.package=b.package)
+#               JOIN section s ON (s.id=o.section)
+#               WHERE o.suite = $1 AND o.type = $2
+#               AND s.id = $3
+#               AND b.id in (SELECT ba.bin from bin_associations ba join binaries b on b.id=ba.bin where (b.architecture=$3 or b.architecture=$4)and ba.suite=$1 and b.type='udeb')
+#               GROUP BY fn
+#               ORDER BY fn;"""
+
+
+
+# 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
+remove_pending_contents_cruft_q = """DELETE FROM pending_content_associations"""
+
+# delete any filenames we are storing which have no binary associated with them
+remove_filename_cruft_q = """DELETE FROM content_file_names
+                             WHERE id IN (SELECT cfn.id FROM content_file_names cfn
+                                          LEFT JOIN content_associations ca
+                                            ON ca.filename=cfn.id
+                                          WHERE ca.id IS NULL)"""
 
-class Contents(object):
+# delete any paths we are storing which have no binary associated with them
+remove_filepath_cruft_q = """DELETE FROM content_file_paths
+                             WHERE id IN (SELECT cfn.id FROM content_file_paths cfn
+                                          LEFT JOIN content_associations ca
+                                             ON ca.filepath=cfn.id
+                                          WHERE ca.id IS NULL)"""
+
+class EndOfContents(object):
     """
-    Class capable of generating Contents-$arch.gz files
+    A sentry object for the end of the filename stream
+    """
+    pass
 
-    Usage GenerateContents().generateContents( ["main","contrib","non-free"] )
+class GzippedContentWriter(object):
+    """
+    An object which will write contents out to a Contents-$arch.gz
+    file on a separate thread
     """
 
-    def __init__(self):
-        self.header = None
+    header = None # a class object holding the header section of contents file
+
+    def __init__(self, filename):
+        """
+        @ptype 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
-        if self.header == None:
+        """
+        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")
-                    self.header = h.read()
+                    GzippedContentWriter.header = h.read()
                     h.close()
                 except:
-                    log.error( "error openeing header file: %d\n%s" % (Config()["Contents::Header"],
-                                                                       traceback.format_exc() ))
-                    self.header = False
+                    log.error( "error opening header file: %d\n%s" % (Config()["Contents::Header"],
+                                                                      traceback.format_exc() ))
+                    GzippedContentWriter.header = None
             else:
-                self.header = False
+                GzippedContentWriter.header = None
 
-        return self.header
+        return GzippedContentWriter.header
 
-    # goal column for section column
-    _goal_column = 54
 
-    def _write_content_file(self, cursor, filename):
-        # Internal method for writing all the results to a given file
-        f = gzip.open(Config()["Dir::Root"] + filename, "w")
-        try:
-            header = self._getHeader()
+class Contents(object):
+    """
+    Class capable of generating Contents-$arch.gz files
 
-            if header:
-                f.write(header)
+    Usage GenerateContents().generateContents( ["main","contrib","non-free"] )
+    """
 
-            while True:
-                contents = cursor.fetchone()
-                if not contents:
-                    return
+    def __init__(self):
+        self.header = None
 
-                num_tabs = max(1,
-                               int( math.ceil( (self._goal_column - len(contents[0])) / 8) ) )
-                f.write(contents[0] + ( '\t' * num_tabs ) + contents[-1] + "\n")
+    def reject(self, message):
+        log.error("E: %s" % message)
 
-        finally:
-            f.close()
+    # goal column for section column
+    _goal_column = 54
 
     def cruft(self):
         """
-        remove files/paths from the DB which are no longer referenced by binaries
+        remove files/paths from the DB which are no longer referenced
+        by binaries and clean the temporary table
         """
         cursor = DBConn().cursor();
         cursor.execute( "BEGIN WORK" )
-        cursor.execute( """DELETE FROM content_file_names
-                           WHERE id IN (SELECT cfn.id FROM content_file_names cfn
-                                        LEFT JOIN content_associations ca
-                                            ON ca.filename=cfn.id
-                                        WHERE ca.id IS NULL)""" );
-        cursor.execute( """DELETE FROM content_file_paths
-                           WHERE id IN (SELECT cfn.id FROM content_file_paths cfn
-                                        LEFT JOIN content_associations ca
-                                            ON ca.filepath=cfn.id
-                                        WHERE ca.id IS NULL)""" );
+        cursor.execute( remove_pending_contents_cruft_q )
+        cursor.execute( remove_filename_cruft_q )
+        cursor.execute( remove_filepath_cruft_q )
         cursor.execute( "COMMIT" )
 
 
@@ -223,10 +311,9 @@ class Contents(object):
         pooldir = Config()[ 'Dir::Pool' ]
 
         cursor = DBConn().cursor();
-        cursor.execute( latin1_q )
-        cursor.execute( debs_q )
-        cursor.execute( olddeb_q )
-        cursor.execute( arches_q )
+        DBConn().prepare("debs_q",debs_q)
+        DBConn().prepare("olddeb_q",olddeb_q)
+        DBConn().prepare("arches_q",arches_q)
 
         suites = self._suites()
         for suite in [i.lower() for i in suites]:
@@ -237,67 +324,127 @@ class Contents(object):
             for arch_id in arch_list:
                 cursor.execute( "EXECUTE debs_q(%d, %d)" % ( suite_id, arch_id[0] ) )
 
-                debs = cursor.fetchall()
                 count = 0
-                for deb in debs:
+                while True:
+                    deb = cursor.fetchone()
+                    if not deb:
+                        break
                     count += 1
-                    cursor.execute( "EXECUTE olddeb_q(%d)" % (deb[0] ) )
-                    old = cursor.fetchone()
+                    cursor1 = DBConn().cursor();
+                    cursor1.execute( "EXECUTE olddeb_q(%d)" % (deb[0] ) )
+                    old = cursor1.fetchone()
                     if old:
-                        log.debug( "already imported: %s" % deb[1] )
+                        log.debug( "already imported: %s" % (deb[1]) )
                     else:
+                        log.debug( "scanning: %s" % (deb[1]) )
                         debfile = os.path.join( pooldir, deb[1] )
                         if os.path.exists( debfile ):
-                            contents = utils.generate_contents_information( debfile )
-                            DBConn().insert_content_paths(deb[0], contents)
-                            log.info( "imported (%d/%d): %s" % (count,len(debs),deb[1] ) )
+                            Binary(debfile, self.reject).scan_package(deb[0],True)
                         else:
-                            log.error( "missing .deb: %s" % deb[1] )
+                            log.error("missing .deb: %s" % deb[1])
 
     def generate(self):
         """
-        Generate Contents-$arch.gz files for every aviailable arch in each given suite.
+        Generate Contents-$arch.gz files for every available arch in each given suite.
         """
-        cursor = DBConn().cursor();
+        cursor = DBConn().cursor()
 
-        cursor.execute( arches_q )
-        cursor.execute( contents_q )
-        cursor.execute( udeb_contents_q )
+        DBConn().prepare("arches_q", arches_q)
+        DBConn().prepare("contents_q", contents_q)
+        DBConn().prepare("udeb_contents_q", udeb_contents_q)
 
+        debtype_id=DBConn().get_override_type_id("deb")
+        udebtype_id=DBConn().get_override_type_id("udeb")
+
+        arch_all_id = DBConn().get_architecture_id("all")
         suites = self._suites()
 
+
         # Get our suites, and the architectures
         for suite in [i.lower() for i in suites]:
             suite_id = DBConn().get_suite_id(suite)
-
             arch_list = self._arches(cursor, suite_id)
 
-            arch_all_id = DBConn().get_architecture_id("all")
+            file_writers = {}
+
+            try:
+                for arch_id in arch_list:
+                    file_writers[arch_id[0]] = GzippedContentWriter("dists/%s/Contents-%s.gz" % (suite, arch_id[1]))
+
+                cursor.execute("EXECUTE contents_q(%d,%d);" % (suite_id, debtype_id))
+
+                while True:
+                    r = cursor.fetchone()
+                    if not r:
+                        break
+
+                    filename, section, package, arch = r
+
+                    if arch == arch_all_id:
+                        ## its arch all, so all contents files get it
+                        for writer in file_writers.values():
+                            writer.write(filename, section, package)
+
+                    else:
+                        file_writers[arch].write(filename, section, package)
+
+            finally:
+                # close all the files
+                for writer in file_writers.values():
+                    writer.finish()
 
-            for arch_id in arch_list:
-                cursor.execute( "EXECUTE contents_q(%d,%d,%d,%d)" % (arch_id[0], arch_all_id, suite_id, suite_id))
-                self._write_content_file(cursor, "dists/%s/Contents-%s.gz" % (suite, arch_id[1]))
 
             # The MORE fun part. Ok, udebs need their own contents files, udeb, and udeb-nf (not-free)
             # This is HORRIBLY debian specific :-/
-            # First off, udeb
-            section_id = DBConn().get_section_id('debian-installer') # all udebs should be here)
+        for section, fn_pattern in [("debian-installer","dists/%s/Contents-udeb-%s.gz"),
+                                    ("non-free/debian-installer", "dists/%s/Contents-udeb-nf-%s.gz")]:
+
+            section_id = DBConn().get_section_id(section) # all udebs should be here)
             if section_id != -1:
-                cursor.execute("EXECUTE udeb_contents_q(%d,%d,%d)" % (section_id, suite_id, suite_id))
-                self._write_content_file(cursor, "dists/%s/Contents-udeb.gz" % suite)
 
-            # Once more, with non-free
-            section_id = DBConn().get_section_id('non-free/debian-installer') # all udebs should be here)
+                # Get our suites, and the architectures
+                for suite in [i.lower() for i in suites]:
+                    suite_id = DBConn().get_suite_id(suite)
+                    arch_list = self._arches(cursor, suite_id)
+
+                    file_writers = {}
+
+                    try:
+                        for arch_id in arch_list:
+                            file_writers[arch_id[0]] = GzippedContentWriter(fn_pattern % (suite, arch_id[1]))
+
+                        cursor.execute("EXECUTE udeb_contents_q(%d,%d,%d)" % (suite_id, udebtype_id, section_id))
+
+                        while True:
+                            r = cursor.fetchone()
+                            if not r:
+                                break
+
+                            filename, section, package, arch = r
+
+                            if not file_writers.has_key( arch ):
+                                continue
+
+                            if arch == arch_all_id:
+                                ## its arch all, so all contents files get it
+                                for writer in file_writers.values():
+                                    writer.write(filename, section, package)
+
+                            else:
+                                file_writers[arch].write(filename, section, package)
+                    finally:
+                        # close all the files
+                        for writer in file_writers.values():
+                            writer.finish()
 
-            if section_id != -1:
-                cursor.execute("EXECUTE udeb_contents_q(%d,%d,%d)" % (section_id, suite_id, suite_id))
-                self._write_content_file(cursor, "dists/%s/Contents-udeb-nf.gz" % suite)
 
 
 ################################################################################
 
     def _suites(self):
-        # return a list of suites to operate on
+        """
+        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:
@@ -306,26 +453,24 @@ class Contents(object):
         return suites
 
     def _arches(self, cursor, suite):
-        # return a list of archs to operate on
-        arch_list = [ ]
-        if Config().has_key( "%s::%s" %(options_prefix,"Arch")):
-            archs = utils.split_args(Config()[ "%s::%s" %(options_prefix,"Arch")])
-            for arch_name in archs:
-                arch_list.append((DBConn().get_architecture_id(arch_name), arch_name))
-        else:
-            cursor.execute("EXECUTE arches_q(%d)" % (suite))
-            while True:
-                r = cursor.fetchone()
-                if not r:
-                    break
+        """
+        return a list of archs to operate on
+        """
+        arch_list = []
+        cursor.execute("EXECUTE arches_q(%d)" % (suite))
+        while True:
+            r = cursor.fetchone()
+            if not r:
+                break
 
-                if r[1] != "source" and r[1] != "all":
-                    arch_list.append((r[0], r[1]))
+            if r[1] != "source" and r[1] != "all":
+                arch_list.append((r[0], r[1]))
 
         return arch_list
 
 ################################################################################
 
+
 def main():
     cnf = Config()
 
@@ -333,7 +478,6 @@ def main():
                  ('s',"suite", "%s::%s" % (options_prefix,"Suite"),"HasArg"),
                  ('q',"quiet", "%s::%s" % (options_prefix,"Quiet")),
                  ('v',"verbose", "%s::%s" % (options_prefix,"Verbose")),
-                 ('a',"arch", "%s::%s" % (options_prefix,"Arch"),"HasArg"),
                 ]
 
     commands = {'generate' : Contents.generate,
@@ -341,6 +485,14 @@ def main():
                 '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")):
+        usage()
+
     level=logging.INFO
     if cnf.has_key("%s::%s" % (options_prefix,"Quiet")):
         level=logging.ERROR
@@ -349,18 +501,10 @@ def main():
         level=logging.DEBUG
 
 
-    logging.basicConfig( level=logging.DEBUG,
+    logging.basicConfig( level=level,
                          format='%(asctime)s %(levelname)s %(message)s',
                          stream = sys.stderr )
 
-    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")):
-        usage()
-
     commands[args[0]](Contents())
 
 if __name__ == '__main__':