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

[Dujardin Bernard]

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`

Problem : the word  'revision' is not in the file .svn/entries
Here the head of  this file :
8

dir
8077
svn://svn.mplayerhq.hu/ffmpeg/trunk
...

I have  replace the grep by this sed script based on existence of
the 3 last lines above

test $svn_revision || svn_revision=`cd "$1" && sed -ne '/^dir$/ \
                                    
{;n;h;n;/^svn:\/\/svn.mplayerhq.hu\/ffmpeg\/trunk$/ \
                                    ! d;x;p;}' .svn/entries 2>/dev/null`

A brief explanation of above :
sed -ne '
#find 'dir'
/^dir$/ \
get next line and store
n
h
#get next line
n
#match svn:svn.mplayerhq.hu/ffmpeg/trunk ?
/^svn:\/\/svn.mplayerhq.hu\/ffmpeg\/trunk$/
#no delete
! d
#yes restore previous line
x
#print result
p
}' .svn/entries 2>/dev/null`


In hope is help. Patch attached

Regards
Bernard






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