Generate old ChangeLogs automatically

(cherrypicked from a24214d3)

doc/.gitignore

+ChangeLog-*

doc/ChangeLog-2007

-------------------------------------------------------------------------
-r20559 | jb | 2007-06-14 01:45:26 +0200 (Thu, 14 Jun 2007) | 3 lines
-Changed paths:
-   M /branches/0.8.6-bugfix/ChangeLog
-   A /branches/0.8.6-bugfix/doc/ChangeLog-2006
-
-Update changelogs.
-
-
-------------------------------------------------------------------------
-r20469 | xtophe | 2007-06-08 00:32:10 +0200 (Fri, 08 Jun 2007) | 2 lines
-Changed paths:
-   M /branches/0.8.6-bugfix/doc/vlc.1
-
-Backport [19419], [20466] and partially [20468]
-
-------------------------------------------------------------------------
-r20192 | courmisch | 2007-05-19 11:42:41 +0200 (Sat, 19 May 2007) | 2 lines
-Changed paths:
-   A /branches/0.8.6-bugfix (from /branches/0.8.6-bugfix:19864)
-
-Not every bug have been fixed right? so why REMOVE the bugfix BRANCH ?
-
-------------------------------------------------------------------------
-r18580 | courmisch | 2007-01-14 20:54:22 +0100 (Sun, 14 Jan 2007) | 4 lines
-Changed paths:
-   A /branches/0.8.6-bugfix (from /tags/0.8.6b:18579)
-   D /tags/0.8.6b
-
-Fix location in previous commit.
-Please retain the branch alive at least until 0.9.0 is out (if ever);
-you can still tag release individually
-
-------------------------------------------------------------------------
-r18579 | courmisch | 2007-01-14 20:52:22 +0100 (Sun, 14 Jan 2007) | 4 lines
-Changed paths:
-   A /tags/0.8.6b (from /tags/0.8.6a:18578)
-
-Branch out yet-another bugfix release.
-Hopefully, we won't run short of letters
-(but we still have 0.8.7a-0.8.9z too, which means 100+ possible releases)
-
-------------------------------------------------------------------------
-r18492 | fkuehne | 2007-01-03 19:27:44 +0100 (Wed, 03 Jan 2007) | 1 line
-Changed paths:
-   D /branches/0.8.6a
-   A /tags/0.8.6a (from /branches/0.8.6a:18491)
-
-* tag 0.8.6a
-------------------------------------------------------------------------
-r18485 | fkuehne | 2007-01-03 18:18:24 +0100 (Wed, 03 Jan 2007) | 1 line
-Changed paths:
-   A /branches/0.8.6a (from /tags/0.8.6:18484)
-
-* branch out for 0.8.6a
-------------------------------------------------------------------------

doc/Makefile.am

@@ -9,7 +9,7 @@ doc_DATA = \
 	intf-vcd.txt \
 	$(NULL)
 
-EXTRA_DIST = \
+CHANGELOGS = \
 	ChangeLog-1999 \
 	ChangeLog-2000 \
 	ChangeLog-2001 \
@@ -17,6 +17,12 @@ EXTRA_DIST = \
 	ChangeLog-2003 \
 	ChangeLog-2004 \
 	ChangeLog-2005 \
+	ChangeLog-2006 \
+	ChangeLog-2007 \
+	$(NULL)
+
+EXTRA_DIST = \
+	$(CHANGELOGS) \
 	vlc.1 \
 	vlc-config.1 \
 	bugreport-howto.txt \
@@ -39,3 +45,11 @@ EXTRA_DIST = \
 	win32/Cross-Compile-Howto.txt \
 	demo.sh \
 	$(NULL)
+
+$(CHANGELOGS): Makefile.am
+	y="$$(echo "$@" | sed -e 's,ChangeLog-,,')" ; \
+	git-log \
+		--since="$$y-01-01" \
+		--until="$$y-12-31 23:00:00 -0100" \
+		> "$@"
+