Backout the pkg_resources.py fix

--HG--
branch : distribute
extra : rebase_source : d144d2afc763c9ed6420d32bad3015075d265226

1 files changed, 10 insertions, 41 deletions

diff --git a/pkg_resources.py b/pkg_resources.py
index c29afb56..fbae7b57 100644
--- a/pkg_resources.py
+++ b/pkg_resources.py
@@ -13,8 +13,7 @@ The package resource API is designed to work with normal filesystem packages,
 method.
 """
 
-import sys, os, zipimport, time, re, imp, types

-import zipfile

+import sys, os, zipimport, time, re, imp, types
 from urlparse import urlparse, urlunparse
 
 try:
@@ -1350,37 +1349,6 @@ class EmptyProvider(NullProvider):
 empty_provider = EmptyProvider()
 
 

-def build_zipmanifest(path):

-    """

-    This builds a similar dictionary to the zipimport directory

-    caches.  However instead of tuples, ZipInfo objects are stored.

-
-    The translation of the tuple is as follows:

-      * [0] - zipinfo.filename on stock pythons this needs "/" --> os.sep

-              on pypy it is the same (one reason why distribute did work

-              in some cases on pypy and win32).

-      * [1] - zipinfo.compress_type

-      * [2] - zipinfo.compress_size

-      * [3] - zipinfo.file_size

-      * [4] - len(utf-8 encoding of filename) if zipinfo & 0x800

-              len(ascii encoding of filename) otherwise

-      * [5] - (zipinfo.date_time[0] - 1980) << 9 |

-               zipinfo.date_time[1] << 5 | zipinfo.date_time[2]

-      * [6] - (zipinfo.date_time[3] - 1980) << 11 |

-               zipinfo.date_time[4] << 5 | (zipinfo.date_time[5] // 2)

-      * [7] - zipinfo.CRC

-    """

-    zipinfo = dict()

-    zfile = zipfile.ZipFile(path)

-    #Got ZipFile has not __exit__ on python 3.1

-    try:

-        for zitem in zfile.namelist():

-            zpath = zitem.replace('/', os.sep)

-            zipinfo[zpath] = zfile.getinfo(zitem)

-            assert zipinfo[zpath] is not None

-    finally:

-        zfile.close()

-    return zipinfo

 
 
 class ZipProvider(EggProvider):
@@ -1390,7 +1358,7 @@ class ZipProvider(EggProvider):
 
     def __init__(self, module):
         EggProvider.__init__(self,module)
-        self.zipinfo = build_zipmanifest(self.load.archive)

+        self.zipinfo = zipimport._zip_directory_cache[self.loader.archive]
         self.zip_pre = self.loader.archive+os.sep
 
     def _zipinfo_name(self, fspath):
@@ -1425,10 +1393,12 @@ class ZipProvider(EggProvider):
         return self._extract_resource(manager, zip_path)
 
     @staticmethod
-    def _get_date_and_size(zip_stat):

-        size = zip_stat.file_size

-        date_time = zip_stat.date_time + (0, 0, -1) # ymdhms+wday, yday, dst

-        #1980 offset already done

+    def _get_date_and_size(zip_stat):
+        t,d,size = zip_stat[5], zip_stat[6], zip_stat[3]
+        date_time = (
+            (d>>9)+1980, (d>>5)&0xF, d&0x1F,                      # ymd
+            (t&0xFFFF)>>11, (t>>5)&0x3F, (t&0x1F) * 2, 0, 0, -1   # hms, etc.
+        )
         timestamp = time.mktime(date_time)
         return timestamp, size
 
@@ -1441,7 +1411,7 @@ class ZipProvider(EggProvider):
                 )
             return os.path.dirname(last)  # return the extracted directory name
 
-        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])

+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
 
         if not WRITE_SUPPORT:
             raise IOError('"os.rename" and "os.unlink" are not supported '
@@ -1640,7 +1610,7 @@ class EggMetadata(ZipProvider):
     def __init__(self, importer):
         """Create a metadata provider from a zipimporter"""
 
-        self.zipinfo = build_zipmanifest(importer.archive)

+        self.zipinfo = zipimport._zip_directory_cache[importer.archive]
         self.zip_pre = importer.archive+os.sep
         self.loader = importer
         if importer.prefix:
@@ -2871,4 +2841,3 @@ run_main = run_script   # backward compatibility
 add_activation_listener(lambda dist: dist.activate())
 working_set.entries=[]; map(working_set.add_entry,sys.path) # match order
 
-