Merge branch 'ab/checkout-default-remote'
[git] / git-rebase--merge.sh
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
8 prec=4
9
10 read_state () {
11         onto_name=$(cat "$state_dir"/onto_name) &&
12         end=$(cat "$state_dir"/end) &&
13         msgnum=$(cat "$state_dir"/msgnum)
14 }
15
16 continue_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"} $signoff $allow_empty_message \
31                         --no-verify -C "$cmt"
32                 then
33                         echo "Commit failed, please do not call \"git commit\""
34                         echo "directly, but instead do one of the following: "
35                         die "$resolvemsg"
36                 fi
37                 if test -z "$GIT_QUIET"
38                 then
39                         printf "Committed: %0${prec}d " $msgnum
40                 fi
41                 echo "$cmt $(git rev-parse HEAD^0)" >> "$state_dir/rewritten"
42         else
43                 if test -z "$GIT_QUIET"
44                 then
45                         printf "Already applied: %0${prec}d " $msgnum
46                 fi
47         fi
48         test -z "$GIT_QUIET" &&
49         GIT_PAGER='' git log --format=%s -1 "$cmt"
50
51         # onto the next patch:
52         msgnum=$(($msgnum + 1))
53         echo "$msgnum" >"$state_dir/msgnum"
54 }
55
56 call_merge () {
57         msgnum="$1"
58         echo "$msgnum" >"$state_dir/msgnum"
59         cmt="$(cat "$state_dir/cmt.$msgnum")"
60         echo "$cmt" > "$state_dir/current"
61         git update-ref REBASE_HEAD "$cmt"
62         hd=$(git rev-parse --verify HEAD)
63         cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
64         eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
65         eval GITHEAD_$hd='$onto_name'
66         export GITHEAD_$cmt GITHEAD_$hd
67         if test -n "$GIT_QUIET"
68         then
69                 GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
70         fi
71         test -z "$strategy" && strategy=recursive
72         # If cmt doesn't have a parent, don't include it as a base
73         base=$(git rev-parse --verify --quiet $cmt^)
74         eval 'git merge-$strategy' $strategy_opts $base ' -- "$hd" "$cmt"'
75         rv=$?
76         case "$rv" in
77         0)
78                 unset GITHEAD_$cmt GITHEAD_$hd
79                 return
80                 ;;
81         1)
82                 git rerere $allow_rerere_autoupdate
83                 die "$resolvemsg"
84                 ;;
85         2)
86                 echo "Strategy: $strategy failed, try another" 1>&2
87                 die "$resolvemsg"
88                 ;;
89         *)
90                 die "Unknown exit code ($rv) from command:" \
91                         "git merge-$strategy $cmt^ -- HEAD $cmt"
92                 ;;
93         esac
94 }
95
96 finish_rb_merge () {
97         move_to_original_branch
98         if test -s "$state_dir"/rewritten
99         then
100                 git notes copy --for-rewrite=rebase <"$state_dir"/rewritten
101                 hook="$(git rev-parse --git-path hooks/post-rewrite)"
102                 test -x "$hook" && "$hook" rebase <"$state_dir"/rewritten
103         fi
104         say All done.
105 }
106
107 git_rebase__merge () {
108
109 case "$action" in
110 continue)
111         read_state
112         continue_merge
113         while test "$msgnum" -le "$end"
114         do
115                 call_merge "$msgnum"
116                 continue_merge
117         done
118         finish_rb_merge
119         return
120         ;;
121 skip)
122         read_state
123         git rerere clear
124         msgnum=$(($msgnum + 1))
125         while test "$msgnum" -le "$end"
126         do
127                 call_merge "$msgnum"
128                 continue_merge
129         done
130         finish_rb_merge
131         return
132         ;;
133 show-current-patch)
134         exec git show REBASE_HEAD --
135         ;;
136 esac
137
138 mkdir -p "$state_dir"
139 echo "$onto_name" > "$state_dir/onto_name"
140 write_basic_state
141 rm -f "$(git rev-parse --git-path REBASE_HEAD)"
142
143 msgnum=0
144 for cmt in $(git rev-list --reverse --no-merges "$revisions")
145 do
146         msgnum=$(($msgnum + 1))
147         echo "$cmt" > "$state_dir/cmt.$msgnum"
148 done
149
150 echo 1 >"$state_dir/msgnum"
151 echo $msgnum >"$state_dir/end"
152
153 end=$msgnum
154 msgnum=1
155
156 while test "$msgnum" -le "$end"
157 do
158         call_merge "$msgnum"
159         continue_merge
160 done
161
162 finish_rb_merge
163
164 }