1#!/bin/sh 2 3# Script to undescribe a GCC revision 4 5o=$(git config --get gcc-config.upstream); 6r=$(echo $1 | sed -n 's,^r\([0-9][0-9]*\)-[0-9][0-9]*\(-g[0-9a-f]*\)*$,\1,p'); 7n=$(echo $1 | sed -n 's,^r[0-9][0-9]*-\([0-9][0-9]*\)\(-g[0-9a-f]*\)*$,\1,p'); 8 9test -z $r && echo Invalid id $1 && exit 1; 10h=$(git rev-parse --verify --quiet ${o:-origin}/releases/gcc-$r); 11test -z $h && h=$(git rev-parse --verify --quiet ${o:-origin}/master); 12p=$(git describe --all --match 'basepoints/gcc-'$r $h | sed -n 's,^tags/,,;s,^basepoints/gcc-[0-9][0-9]*-\([0-9][0-9]*\)-g[0-9a-f]*$,\1,p;s,^basepoints/gcc-[0-9][0-9]*$,0,p'); 13git rev-parse --verify $h~$(expr $p - $n); 14