git-rebase--am.sh

   1 # This shell script fragment is sourced by git-rebase to implement
   2 # its default, fast, patch-based, non-interactive mode.
   3 #
   4 # Copyright (c) 2010 Junio C Hamano.
   5 #
   6
   7 # The whole contents of this file is run by dot-sourcing it from
   8 # inside a shell function.  It used to be that "return"s we see
   9 # below were not inside any function, and expected to return
  10 # to the function that dot-sourced us.
  11 #
  12 # However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
  13 # construct and continue to run the statements that follow such a "return".
  14 # As a work-around, we introduce an extra layer of a function
  15 # here, and immediately call it after defining it.
  16 git_rebase__am () {
  17
  18 case "$action" in
  19 continue)
  20         git am --resolved --resolvemsg="$resolvemsg" \
  21                 ${gpg_sign_opt:+"$gpg_sign_opt"} &&
  22         move_to_original_branch
  23         return
  24         ;;
  25 skip)
  26         git am --skip --resolvemsg="$resolvemsg" &&
  27         move_to_original_branch
  28         return
  29         ;;
  30 esac
  31
  32 if test -z "$rebase_root"
  33         # this is now equivalent to ! -z "$upstream"
  34 then
  35         revisions=$upstream...$orig_head
  36 else
  37         revisions=$onto...$orig_head
  38 fi
  39
  40 ret=0
  41 if test -n "$keep_empty"
  42 then
  43         # we have to do this the hard way.  git format-patch completely squashes
  44         # empty commits and even if it didn't the format doesn't really lend
  45         # itself well to recording empty patches.  fortunately, cherry-pick
  46         # makes this easy
  47         git cherry-pick ${gpg_sign_opt:+"$gpg_sign_opt"} --allow-empty \
  48                 $allow_rerere_autoupdate --right-only "$revisions" \
  49                 ${restrict_revision+^$restrict_revision}
  50         ret=$?
  51 else
  52         rm -f "$GIT_DIR/rebased-patches"
  53
  54         git format-patch -k --stdout --full-index --cherry-pick --right-only \
  55                 --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
  56                 "$revisions" ${restrict_revision+^$restrict_revision} \
  57                 >"$GIT_DIR/rebased-patches"
  58         ret=$?
  59
  60         if test 0 != $ret
  61         then
  62                 rm -f "$GIT_DIR/rebased-patches"
  63                 case "$head_name" in
  64                 refs/heads/*)
  65                         git checkout -q "$head_name"
  66                         ;;
  67                 *)
  68                         git checkout -q "$orig_head"
  69                         ;;
  70                 esac
  71
  72                 cat >&2 <<-EOF
  73
  74                 git encountered an error while preparing the patches to replay
  75                 these revisions:
  76
  77                     $revisions
  78
  79                 As a result, git cannot rebase them.
  80                 EOF
  81                 return $ret
  82         fi
  83
  84         git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" \
  85                 $allow_rerere_autoupdate \
  86                 ${gpg_sign_opt:+"$gpg_sign_opt"} <"$GIT_DIR/rebased-patches"
  87         ret=$?
  88
  89         rm -f "$GIT_DIR/rebased-patches"
  90 fi
  91
  92 if test 0 != $ret
  93 then
  94         test -d "$state_dir" && write_basic_state
  95         return $ret
  96 fi
  97
  98 move_to_original_branch
  99
 100 }
 101 # ... and then we call the whole thing.
 102 git_rebase__am