1# This shell script fragment is sourced by git-rebase to implement
2# its merge-based non-interactive mode that copes well with renamed
3# files.
4#
5# Copyright (c) 2010 Junio C Hamano.
6#
7
8prec=4
9
10read_state () {
11 onto_name=$(cat "$state_dir"/onto_name) &&
12 end=$(cat "$state_dir"/end) &&
13 msgnum=$(cat "$state_dir"/msgnum)
14}
15
16continue_merge () {
17 test -d "$state_dir" || die "$state_dir directory does not exist"
18
19 unmerged=$(git ls-files -u)
20 if test -n "$unmerged"
21 then
22 echo "You still have unmerged paths in your index"
23 echo "did you forget to use git add?"
24 die "$resolvemsg"
25 fi
26
27 cmt=`cat "$state_dir/current"`
28 if ! git diff-index --quiet --ignore-submodules HEAD --
29 then
30 if ! git commit ${gpg_sign_opt:+"$gpg_sign_opt"} --no-verify -C "$cmt"
31 then
32 echo "Commit failed, please do not call \"git commit\""
33 echo "directly, but instead do one of the following: "
34 die "$resolvemsg"
35 fi
36 if test -z "$GIT_QUIET"
37 then
38 printf "Committed: %0${prec}d " $msgnum
39 fi
40 echo "$cmt $(git rev-parse HEAD^0)" >> "$state_dir/rewritten"
41 else
42 if test -z "$GIT_QUIET"
43 then
44 printf "Already applied: %0${prec}d " $msgnum
45 fi
46 fi
47 test -z "$GIT_QUIET" &&
48 GIT_PAGER='' git log --format=%s -1 "$cmt"
49
50 # onto the next patch:
51 msgnum=$(($msgnum + 1))
52 echo "$msgnum" >"$state_dir/msgnum"
53}
54
55call_merge () {
56 cmt="$(cat "$state_dir/cmt.$1")"
57 echo "$cmt" > "$state_dir/current"
58 hd=$(git rev-parse --verify HEAD)
59 cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
60 msgnum=$(cat "$state_dir/msgnum")
61 eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
62 eval GITHEAD_$hd='$onto_name'
63 export GITHEAD_$cmt GITHEAD_$hd
64 if test -n "$GIT_QUIET"
65 then
66 GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
67 fi
68 test -z "$strategy" && strategy=recursive
69 eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"'
70 rv=$?
71 case "$rv" in
72 0)
73 unset GITHEAD_$cmt GITHEAD_$hd
74 return
75 ;;
76 1)
77 git rerere $allow_rerere_autoupdate
78 die "$resolvemsg"
79 ;;
80 2)
81 echo "Strategy: $strategy failed, try another" 1>&2
82 die "$resolvemsg"
83 ;;
84 *)
85 die "Unknown exit code ($rv) from command:" \
86 "git-merge-$strategy $cmt^ -- HEAD $cmt"
87 ;;
88 esac
89}
90
91finish_rb_merge () {
92 move_to_original_branch
93 if test -s "$state_dir"/rewritten
94 then
95 git notes copy --for-rewrite=rebase <"$state_dir"/rewritten
96 if test -x "$GIT_DIR"/hooks/post-rewrite
97 then
98 "$GIT_DIR"/hooks/post-rewrite rebase <"$state_dir"/rewritten
99 fi
100 fi
101 say All done.
102}
103
104case "$action" in
105continue)
106 read_state
107 continue_merge
108 while test "$msgnum" -le "$end"
109 do
110 call_merge "$msgnum"
111 continue_merge
112 done
113 finish_rb_merge
114 return
115 ;;
116skip)
117 read_state
118 git rerere clear
119 msgnum=$(($msgnum + 1))
120 while test "$msgnum" -le "$end"
121 do
122 call_merge "$msgnum"
123 continue_merge
124 done
125 finish_rb_merge
126 return
127 ;;
128esac
129
130mkdir -p "$state_dir"
131echo "$onto_name" > "$state_dir/onto_name"
132write_basic_state
133
134msgnum=0
135for cmt in `git rev-list --reverse --no-merges "$revisions"`
136do
137 msgnum=$(($msgnum + 1))
138 echo "$cmt" > "$state_dir/cmt.$msgnum"
139done
140
141echo 1 >"$state_dir/msgnum"
142echo $msgnum >"$state_dir/end"
143
144end=$msgnum
145msgnum=1
146
147while test "$msgnum" -le "$end"
148do
149 call_merge "$msgnum"
150 continue_merge
151done
152
153finish_rb_merge