From 31093dd920959dec1c158bae5cdb371ec4a6622b Mon Sep 17 00:00:00 2001
From: Vincent Bernat <bernat@luffy.cx>
Date: Wed, 15 Aug 2012 14:07:31 +0200
Subject: [PATCH] dist: provide a complete changelog

The previous changelog is moved to a NEWS file
---
 Makefile.am       | 18 +++++++++++++++++-
 CHANGELOG => NEWS |  0
 2 files changed, 17 insertions(+), 1 deletion(-)
 rename CHANGELOG => NEWS (100%)

diff --git a/Makefile.am b/Makefile.am
index 1e9f76a8..09703913 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,20 @@
 ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = src man tests
 DIST_SUBDIRS = $(SUBDIRS) libevent
-dist_doc_DATA = README.md CHANGELOG
+dist_doc_DATA = README.md NEWS
+
+# Build changelog from git history
+dist-hook: $(distdir)/ChangeLog
+$(distdir)/ChangeLog:
+	if test -d $(top_srcdir)/.git; then \
+		prev=$$(git describe --tags --always --match [0-9]* 2> /dev/null) ; \
+		for tag in $$(git tag | grep -E '^[0-9]+(\.[0-9]+){1,}$$' | sort -rn); do \
+			if [ x"$$prev" = x ]; then prev=$$tag ; fi ; \
+			if [ x"$$prev" = x"$$tag" ]; then continue; fi ; \
+			echo "$$prev:" ; \
+			echo "" ; \
+			git log --pretty=' - %s' $$tag..$$prev ; \
+			echo "" ; \
+			prev=$$tag ; \
+		done > $@ ; \
+	fi
diff --git a/CHANGELOG b/NEWS
similarity index 100%
rename from CHANGELOG
rename to NEWS
-- 
2.39.5