# HG changeset patch
# User Joerg Sonnenberger <joerg@bec.de>
# Date 1618943746 -7200
# Node ID 8d2b62d716b095507effaa8d56f87cd27ba659ab
# Parent  01264552a1dc163161a334c2568f3a68bf06e355
packaging: extract pre-computed version when running from plain tarball

The tarballs created by setup.py are not including the usual archive
markers that `hg archive` leaves, so the rewrite of the version number
computation actually left the empty version string around. This meant
that installations from PyPI would use 0.0.0 as version string.

Differential Revision: https://phab.mercurial-scm.org/D10502

diff -r 01264552a1dc -r 8d2b62d716b0 setup.py
--- a/setup.py	Tue Apr 20 11:12:20 2021 -0400
+++ b/setup.py	Tue Apr 20 20:35:46 2021 +0200
@@ -437,6 +437,9 @@
             version = '%(latesttag)s+hg%(latesttagdistance)s.%(node).12s' % kw
     else:
         version = '0+hg' + kw.get('node', '')[:12]
+elif os.path.exists('mercurial/__version__.py'):
+    data = open('mercurial/__version__.py').read()
+    version = re.search('version = b"(.*)"', data).group(1)
 
 if version:
     versionb = version