Made ``egg_info --tag-svn-revision`` fall back to extracting the

revision number from ``PKG-INFO`` in case it is being run on a
source distribution of a snapshot taken from a Subversion-based
project.  That is, if a project builds an sdist with
--tag-svn-revision in setup.cfg, then the built sdist will
create binaries with the same version number as the checkout
that was used to create the sdist.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041396

1 files changed, 12 insertions, 12 deletions

diff --git a/setuptools/command/egg_info.py b/setuptools/command/egg_info.py
index 2c9a953e..c5a404e9 100755
--- a/setuptools/command/egg_info.py
+++ b/setuptools/command/egg_info.py
@@ -160,7 +160,7 @@ class egg_info(Command):
                 continue    # not part of the same svn tree, skip it
             for match in revre.finditer(data):
                 revision = max(revision, int(match.group(1)))
-        return str(revision)
+        return str(revision or get_pkg_info_revision())
 
 def write_pkg_info(cmd, basename, filename):
     log.info("writing %s", filename)
@@ -226,17 +226,17 @@ def write_entries(cmd, basename, filename):
 
     cmd.write_or_delete_file('entry points', filename, data)
 
-
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-
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-
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-
-
+def get_pkg_info_revision():
+    # See if we can get a -r### off of PKG-INFO, in case this is an sdist of
+    # a subversion revision
+    #
+    if os.path.exists('PKG-INFO'):
+        f = open('PKG-INFO','rU')
+        for line in f:
+            match = re.match(r"Version:.*-r(\d+)\s*$", line)
+            if match:
+                return int(match.group(1))
+    return 0