[gobject-introspection] Makefile: Rework release tools

[Colin Walters <walters src gnome org>]

commit 734a6041a8c7671324ba21f943e712e57bf992b0
Author: Colin Walters <walters verbum org>
Date:   Thu Mar 10 14:47:30 2011 -0500

    Makefile: Rework release tools
    
    Separate "preparing" a release locally from actually uploading it,
    and automate bumping the version in configure.ac.

 Makefile.am      |   13 +++++++++----
 tools/verbump.py |   46 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 4 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index de8bab3..940fc1a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -55,14 +55,19 @@ EXTRA_DIST += 			\
 	misc/pre-commit		\
 	misc/pyflakes.py
 
-release-tag:
+prepare-release-tag:
 	@TAG=`echo $(VERSION)|sed s/\\\./_/g`;\
-	  echo "* Tagging $(VERSION)"; \
+	  echo "git tag GOBJECT_INTROSPECTION_$$TAG"; \
           git tag -m "Tag $$VERSION" -a \
-              GOBJECT_INTROSPECTION_$$TAG && \
-	      git push --tags ssh://git.gnome.org/git/gobject-introspection
+              GOBJECT_INTROSPECTION_$$TAG
+
+prepare-minor-release: $(distdir).tar.bz2 prepare-release-tag
+	python $(top_srcdir)/tools/verbump.py
 
 upload-release: $(distdir).tar.bz2
+	git log origin/master..master
+	@echo -n "Ok to push? [y/N] "; read ans; test x$$ans == xy || exit 1
+	git push --tags origin master:master
 	scp $(distdir).tar.bz2 gnome.org:
 	ssh gnome.org install-module $(distdir).tar.bz2
 
diff --git a/tools/verbump.py b/tools/verbump.py
new file mode 100644
index 0000000..4e38372
--- /dev/null
+++ b/tools/verbump.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# Automakes a release preparation for a post-release project
+# * Create a git tag
+# * Bump version in configure.ac and commit it
+
+import re
+import os
+import sys
+import subprocess
+
+micro_version_re = re.compile('m4_define.*gi_micro_version, ([0-9]+)')
+micro_version_replace = 'm4_define(gi_micro_version, %d)\n'
+
+def _extract_config_log_variable(name):
+    f = open('config.log')
+    keystart = name + '=\''
+    for line in f:
+        if line.startswith(keystart):
+            return line[len(keystart):-2]
+    f.close()
+    fatal("Failed to find '%s' in config.status" % (name, ))
+
+if not os.path.isfile('config.log'):
+    fatal("Couldn't find config.log; did you run configure?")
+package = _extract_config_log_variable('PACKAGE_TARNAME')
+version = _extract_config_log_variable('VERSION')
+
+f = open('configure.ac');
+newf = open('configure.ac.new', 'w')
+for line in f:
+  m = micro_version_re.match(line)
+  if not m:
+    newf.write(line)
+    continue
+  v = int(m.group(1))
+  newv = v+1
+  print "Will update micro version from %s to %s" % (v, newv)
+  newf.write(micro_version_replace % (newv, ))
+newf.close()
+
+os.rename('configure.ac.new', 'configure.ac')
+print "Successfully wrote new 'configure.ac' with post-release version bump"
+
+args=['git', 'commit', '-m', "configure: Post-release version bump", 'configure.ac']
+print "Running: %r" % (args, )
+subprocess.check_call(args)