git-rebase-script

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano.
   4 #
   5
   6 . git-sh-setup-script || die "Not a git archive."
   7
   8 usage="usage: $0 "'<upstream> [<head>]
   9
  10 Uses output from git-cherry to rebase local commits to the new head of
  11 upstream tree.'
  12
  13 case "$#,$1" in
  14 1,*..*)
  15     upstream=$(expr "$1" : '\(.*\)\.\.') ours=$(expr "$1" : '.*\.\.\(.*\)$')
  16     set x "$upstream" "$ours"
  17     shift ;;
  18 esac
  19
  20 git-update-cache --refresh || exit
  21
  22 case "$#" in
  23 1) ours_symbolic=HEAD ;;
  24 2) ours_symbolic="$2" ;;
  25 *) die "$usage" ;;
  26 esac
  27
  28 upstream=`git-rev-parse --verify "$1"` &&
  29 ours=`git-rev-parse --verify "$ours_symbolic^` || exit
  30 test "$(git-diff-cache --cached "$ours")" = "" ||
  31 die "Your working tree does not match $ours_symbolic."
  32
  33 git-read-tree -m -u $ours $upstream &&
  34 git-rev-parse --verify "$upstream^0" >"$GIT_DIR/HEAD" || exit
  35
  36 tmp=.rebase-tmp$$
  37 fail=$tmp-fail
  38 trap "rm -rf $tmp-*" 0 1 2 3 15
  39
  40 >$fail
  41
  42 git-cherry $upstream $ours |
  43 while read sign commit
  44 do
  45         case "$sign" in
  46         -) continue ;;
  47         esac
  48         S=`cat "$GIT_DIR/HEAD"` &&
  49         GIT_EXTERNAL_DIFF=git-apply-patch-script git-diff-tree -p $commit &&
  50         git-commit-script -C "$commit" || {
  51                 echo $commit >>$fail
  52                 git-read-tree --reset -u $S
  53         }
  54 done
  55 if test -s $fail
  56 then
  57         echo Some commits could not be rebased, check by hand:
  58         cat $fail
  59 fi