[Ffmpeg-devel] [PATCH]version.sh don't work if svn command unavailable. Rewriting of search in .svn/entries

[Nigel Pearson]

On 23/02/2007, at 6:43 AM, Dujardin Bernard wrote:

> When svn is unavailable version.sh fall on this grep search
>
> test $svn_revision || svn_revision=`cd "$1" && grep revision .svn/ 
> entries | \
>                                    cut -d '"' -f2 2> /dev/null`


As an alternative, MythTV uses svnversion:

version.target = version.cpp
version.commands = sh -c "echo 'const char *myth_source_version =' \
'\"'`(svnversion $${SVNTREEDIR} 2>/dev/null) || echo Unknown`'\";' \
 > .vers.new ; diff .vers.new version.cpp > .vers.diff 2>&1 ; \
if test -s .vers.diff ; then mv -f .vers.new version.cpp ; fi ; \
rm -f .vers.new .vers.diff"
version.depends = FORCE


which if you unravel my mess, would be:

svn_revision=`(svnversion $1 2>/dev/null) || echo Unknown`


Note that this lists a compound version number instead of
just a single integer, so the version string might become:

#define FFMPEG_VERSION "SVN-r7654:8019M"

if you a mixture of old and new source.

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