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="$resolvemsg" &&
  27         move_to_original_branch
  28         return
  29         ;;
  30 show-current-patch)
  31         exec git am --show-current-patch
  32         ;;
  33 esac
  34
  35 if test -z "$rebase_root"
  36         # this is now equivalent to ! -z "$upstream"
  37 then
  38         revisions=$upstream...$orig_head
  39 else
  40         revisions=$onto...$orig_head
  41 fi
  42
  43 ret=0
  44 if test -n "$keep_empty"
  45 then
  46         # we have to do this the hard way.  git format-patch completely squashes
  47         # empty commits and even if it didn't the format doesn't really lend
  48         # itself well to recording empty patches.  fortunately, cherry-pick
  49         # makes this easy
  50         git cherry-pick ${gpg_sign_opt:+"$gpg_sign_opt"} --allow-empty \
  51                 $allow_rerere_autoupdate --right-only "$revisions" \
  52                 $allow_empty_message \
  53                 ${restrict_revision+^$restrict_revision}
  54         ret=$?
  55 else
  56         rm -f "$GIT_DIR/rebased-patches"
  57
  58         git format-patch -k --stdout --full-index --cherry-pick --right-only \
  59                 --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
  60                 --pretty=mboxrd \
  61                 $git_format_patch_opt \
  62                 "$revisions" ${restrict_revision+^$restrict_revision} \
  63                 >"$GIT_DIR/rebased-patches"
  64         ret=$?
  65
  66         if test 0 != $ret
  67         then
  68                 rm -f "$GIT_DIR/rebased-patches"
  69                 case "$head_name" in
  70                 refs/heads/*)
  71                         git checkout -q "$head_name"
  72                         ;;
  73                 *)
  74                         git checkout -q "$orig_head"
  75                         ;;
  76                 esac
  77
  78                 cat >&2 <<-EOF
  79
  80                 git encountered an error while preparing the patches to replay
  81                 these revisions:
  82
  83                     $revisions
  84
  85                 As a result, git cannot rebase them.
  86                 EOF
  87                 return $ret
  88         fi
  89
  90         git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" \
  91                 --patch-format=mboxrd \
  92                 $allow_rerere_autoupdate \
  93                 ${gpg_sign_opt:+"$gpg_sign_opt"} <"$GIT_DIR/rebased-patches"
  94         ret=$?
  95
  96         rm -f "$GIT_DIR/rebased-patches"
  97 fi
  98
  99 if test 0 != $ret
 100 then
 101         test -d "$state_dir" && write_basic_state
 102         return $ret
 103 fi
 104
 105 move_to_original_branch
 106
 107 }
 108 # ... and then we call the whole thing.
 109 git_rebase__am