X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=daklib%2Fdbconn.py;h=9b757d13487887382595daa0cb23b55742301411;hb=e3544ea0e2e9078fd849fb6f264c8b36b119a37a;hp=3b60ae65808d9aba8587647d0d85b32702ce2576;hpb=094ef5bb58109dddd8a4613e08fc2c370655a230;p=dak.git

diff --git a/daklib/dbconn.py b/daklib/dbconn.py
index 3b60ae65..9b757d13 100755
--- a/daklib/dbconn.py
+++ b/daklib/dbconn.py
@@ -34,6 +34,7 @@
 ################################################################################
 
 import os
+from os.path import normpath
 import re
 import psycopg2
 import traceback
@@ -49,6 +50,8 @@ except:
 from datetime import datetime, timedelta
 from errno import ENOENT
 from tempfile import mkstemp, mkdtemp
+from subprocess import Popen, PIPE
+from tarfile import TarFile
 
 from inspect import getargspec
 
@@ -502,6 +505,29 @@ class DBBinary(ORMObject):
     def get_component_name(self):
         return self.poolfile.location.component.component_name
 
+    def scan_contents(self):
+        '''
+        Yields the contents of the package. Only regular files are yielded and
+        the path names are normalized after converting them from either utf-8
+        or iso8859-1 encoding. It yields the string ' <EMPTY PACKAGE>' if the
+        package does not contain any regular file.
+        '''
+        fullpath = self.poolfile.fullpath
+        dpkg = Popen(['dpkg-deb', '--fsys-tarfile', fullpath], stdout = PIPE)
+        tar = TarFile.open(fileobj = dpkg.stdout, mode = 'r|')
+        for member in tar.getmembers():
+            if not member.isdir():
+                name = normpath(member.name)
+                # enforce proper utf-8 encoding
+                try:
+                    name.decode('utf-8')
+                except UnicodeDecodeError:
+                    name = name.decode('iso8859-1').encode('utf-8')
+                yield name
+        tar.close()
+        dpkg.stdout.close()
+        dpkg.wait()
+
 __all__.append('DBBinary')
 
 @session_wrapper
@@ -3265,7 +3291,7 @@ class DBConn(object):
         mapper(BinContents, self.tbl_bin_contents,
             properties = dict(
                 binary = relation(DBBinary,
-                    backref=backref('contents', lazy='dynamic')),
+                    backref=backref('contents', lazy='dynamic', cascade='all')),
                 file = self.tbl_bin_contents.c.file))
 
     ## Connection functions
@@ -3284,7 +3310,16 @@ class DBConn(object):
             if cnf["DB::Port"] and cnf["DB::Port"] != "-1":
                 connstr += "?port=%s" % cnf["DB::Port"]
 
-        self.db_pg   = create_engine(connstr, echo=self.debug)
+        engine_args = { 'echo': self.debug }
+        if cnf.has_key('DB::PoolSize'):
+            engine_args['pool_size'] = int(cnf['DB::PoolSize'])
+        if cnf.has_key('DB::MaxOverflow'):
+            engine_args['max_overflow'] = int(cnf['DB::MaxOverflow'])
+        if sa_major_version == '0.6' and cnf.has_key('DB::Unicode') and \
+            cnf['DB::Unicode'] == 'false':
+            engine_args['use_native_unicode'] = False
+
+        self.db_pg   = create_engine(connstr, **engine_args)
         self.db_meta = MetaData()
         self.db_meta.bind = self.db_pg
         self.db_smaker = sessionmaker(bind=self.db_pg,