gstreamer/m4/as-slurp-ffmpeg.m4
Thomas Vander Stichele 17d6e4da5e changing ffmpeg to only update when required
Original commit message from CVS:
changing ffmpeg to only update when required
2003-01-05 11:31:42 +00:00

55 lines
1.5 KiB
Text

dnl slurp-ffmpeg.m4 0.1.1
dnl a macro to slurp in ffmpeg's cvs source inside a project tree
dnl taken from Autostar Sandbox, http://autostars.sourceforge.net/
dnl Usage:
dnl AS_SLURP_FFMPEG(DIRECTORY, DATE, [ACTION-IF-WORKED [, ACTION-IF-NOT-WORKED]]])
dnl
dnl Example:
dnl AM_PATH_FFMPEG(lib/ffmpeg, 2002-12-14 12:00 GMT)
dnl
dnl make sure you have a Tag file in the dir where you check out that
dnl is the Tag of CVS you want to have checked out
dnl it should correspond to the DATE argument you supply, ie resolve to
dnl the same date
dnl (in an ideal world, cvs would understand it's own Tag file format as
dnl a date spec)
AC_DEFUN(AS_SLURP_FFMPEG,
[
# save original dir
DIRECTORY=`pwd`
# get/update cvs
if test ! -d $1; then mkdir -p $1; fi
cd $1
if test ! -d ffmpeg/CVS; then
# check out cvs code
AC_MSG_NOTICE(checking out ffmpeg cvs code from $2 into $1)
cvs -Q -d:pserver:anonymous@cvs.ffmpeg.sourceforge.net:/cvsroot/ffmpeg co -D '$2' ffmpeg || FAILED=yes
cd ffmpeg
else
# compare against Tag file and see if it needs updating
if diff -q Tag ffmpeg/CVS/Tag > /dev/null 2> /dev/null
then
# diff returned no problem
AC_MSG_NOTICE(ffmpeg cvs code in sync)
else
# diff says they differ
cd ffmpeg
AC_MSG_NOTICE(updating ffmpeg cvs code)
cvs -Q update -dP -D '$2' || FAILED=yes
fi
fi
# now go back
cd $DIRECTORY
if test "x$FAILED" == "xyes"; then
[$4]
false
else
[$3]
true
fi
])