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