bin/dashtopatch

   1 #! /bin/sh
   2 set -ex
   3 if [ $# != 1 ] || ! echo "$1" | grep -q '-';then
   4   echo >&2 "Syntax: $0 branch-list-delimited-by-dashes"
   5   exit 1
   6 fi
   7 base="master"
   8 for elem in $(echo "$1"|tr '-' ' ');do
   9   if [ "$base" = "master" ];then
  10     next="$elem"
  11   else
  12     next="$base-$elem"
  13   fi
  14   git checkout "$next"
  15   git merge "$base"
  16   if [ -e "$next".patch ];then
  17     echo -e '/^--- /,$d\nw'|ed "$next".patch
  18   fi
  19   git diff "$base" "$next"|diffdecvs >>"$next".patch
  20   base="$next"
  21 done
  22 echo OK