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      1 #!/bin/sh
      2 
      3 # Script to describe a GCC revision based on git hash
      4 
      5 short=no
      6 long=no
      7 c=master
      8 
      9 for arg in "$@"
     10 do
     11     case "$arg" in
     12       --short) short=yes long=no
     13 	;;
     14       --long|--full) long=yes short=no
     15 	;;
     16       *) c=$arg
     17     esac
     18 done
     19 
     20 if test x$short = xyes; then
     21     r=$(git describe --all --match 'basepoints/gcc-[0-9]*' $c | sed -n 's,^tags/,,;s,^basepoints/gcc-\([0-9][0-9]*\)-\([0-9][0-9]*\)-g[0-9a-f]*$,r\1-\2,p;s,^basepoints/gcc-\([0-9][0-9]*\)$,r\1-0,p');
     22 elif test x$long = xyes; then
     23     r=$(git describe --all --abbrev=40 --match 'basepoints/gcc-[0-9]*' $c | sed -n 's,^tags/,,;s,^basepoints/gcc-,r,p')
     24 else
     25     r=$(git describe --all --abbrev=14 --match 'basepoints/gcc-[0-9]*' $c | sed -n 's,^tags/,,;s,^basepoints/gcc-,r,p')
     26     expr ${r:-no} : 'r[0-9]\+$' >/dev/null && r=${r}-0-g$(git rev-parse $c);
     27 fi;
     28 if test -n $r; then
     29     o=$(git config --get gcc-config.upstream);
     30     rr=$(echo $r | sed -n 's,^r\([0-9]\+\)-[0-9]\+\(-g[0-9a-f]\+\)\?$,\1,p');
     31     if git rev-parse --verify --quiet ${o:-origin}/releases/gcc-$rr >/dev/null; then
     32 	m=releases/gcc-$rr;
     33     else
     34 	m=master;
     35     fi;
     36     git merge-base --is-ancestor $c ${o:-origin}/$m && echo ${r};
     37 fi;
     38