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, FreeBSD /bin/sh misbehaves on such a construct and
  13 # continues 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         move_to_original_branch
  22         return
  23         ;;
  24 skip)
  25         git am --skip --resolvemsg="$resolvemsg" &&
  26         move_to_original_branch
  27         return
  28         ;;
  29 esac
  30
  31 test -n "$rebase_root" && root_flag=--root
  32
  33 ret=0
  34 if test -n "$keep_empty"
  35 then
  36         # we have to do this the hard way.  git format-patch completely squashes
  37         # empty commits and even if it didn't the format doesn't really lend
  38         # itself well to recording empty patches.  fortunately, cherry-pick
  39         # makes this easy
  40         git cherry-pick --allow-empty "$revisions"
  41         ret=$?
  42 else
  43         rm -f "$GIT_DIR/rebased-patches"
  44
  45         git format-patch -k --stdout --full-index --ignore-if-in-upstream \
  46                 --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
  47                 $root_flag "$revisions" >"$GIT_DIR/rebased-patches"
  48         ret=$?
  49
  50         if test 0 != $ret
  51         then
  52                 rm -f "$GIT_DIR/rebased-patches"
  53                 case "$head_name" in
  54                 refs/heads/*)
  55                         git checkout -q "$head_name"
  56                         ;;
  57                 *)
  58                         git checkout -q "$orig_head"
  59                         ;;
  60                 esac
  61
  62                 cat >&2 <<-EOF
  63
  64                 git encountered an error while preparing the patches to replay
  65                 these revisions:
  66
  67                     $revisions
  68
  69                 As a result, git cannot rebase them.
  70                 EOF
  71                 return $?
  72         fi
  73
  74         git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" <"$GIT_DIR/rebased-patches"
  75         ret=$?
  76
  77         rm -f "$GIT_DIR/rebased-patches"
  78 fi
  79
  80 if test 0 != $ret
  81 then
  82         test -d "$state_dir" && write_basic_state
  83         return $ret
  84 fi
  85
  86 move_to_original_branch
  87
  88 }
  89 # ... and then we call the whole thing.
  90 git_rebase__am