[blam] Autogenerate the ChangeLog file from git

[Carlos MartÃn Nieto <cmartin src gnome org>]

commit 201a1890d044da53e91adbeec2dd55e2a8bd441e
Author: Carlos MartÃn Nieto <carlos cmartin tk>
Date:   Sun May 13 16:37:40 2012 +0200

    Autogenerate the ChangeLog file from git

 ChangeLog => ChangeLog.old |    0
 Makefile.am                |    9 +++++++++
 2 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog.old
similarity index 100%
rename from ChangeLog
rename to ChangeLog.old
diff --git a/Makefile.am b/Makefile.am
index e04ff5c..a7d59f1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -67,3 +67,12 @@ DISTCLEANFILES = \
         $(desktop_files)        \
         $(schemas_DATA)
 
+# Generate the ChangeLog from the git history
+ChangeLog:
+	@if test -f $(top_srcdir)/.git/HEAD; then \
+		git log --stat > $@; \
+	fi
+
+dist: ChangeLog
+
+.PHONY: ChangeLog