Fourth batch for 2.17
[git] / 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                 $allow_empty_message \
50                 ${restrict_revision+^$restrict_revision}
51         ret=$?
52 else
53         rm -f "$GIT_DIR/rebased-patches"
54
55         git format-patch -k --stdout --full-index --cherry-pick --right-only \
56                 --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
57                 --pretty=mboxrd \
58                 $git_format_patch_opt \
59                 "$revisions" ${restrict_revision+^$restrict_revision} \
60                 >"$GIT_DIR/rebased-patches"
61         ret=$?
62
63         if test 0 != $ret
64         then
65                 rm -f "$GIT_DIR/rebased-patches"
66                 case "$head_name" in
67                 refs/heads/*)
68                         git checkout -q "$head_name"
69                         ;;
70                 *)
71                         git checkout -q "$orig_head"
72                         ;;
73                 esac
74
75                 cat >&2 <<-EOF
76
77                 git encountered an error while preparing the patches to replay
78                 these revisions:
79
80                     $revisions
81
82                 As a result, git cannot rebase them.
83                 EOF
84                 return $ret
85         fi
86
87         git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" \
88                 --patch-format=mboxrd \
89                 $allow_rerere_autoupdate \
90                 ${gpg_sign_opt:+"$gpg_sign_opt"} <"$GIT_DIR/rebased-patches"
91         ret=$?
92
93         rm -f "$GIT_DIR/rebased-patches"
94 fi
95
96 if test 0 != $ret
97 then
98         test -d "$state_dir" && write_basic_state
99         return $ret
100 fi
101
102 move_to_original_branch
103
104 }
105 # ... and then we call the whole thing.
106 git_rebase__am