contrib/git-descr.sh

   1 #!/bin/sh
   2
   3 # Script to describe a GCC revision based on git hash
   4
   5 short=no
   6 long=no
   7 c=HEAD
   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;