[PATCH] Rewrite read-tree
[alt-git.git] / git-applypatch.sh
blobfd594ed4e48a1aee7f4e9c0a6bbb3a44f1bb2120
1 #!/bin/sh
2 ##
3 ## applypatch takes four file arguments, and uses those to
4 ## apply the unpacked patch (surprise surprise) that they
5 ## represent to the current tree.
6 ##
7 ## The arguments are:
8 ## $1 - file with commit message
9 ## $2 - file with the actual patch
10 ## $3 - "info" file with Author, email and subject
11 ## $4 - optional file containing signoff to add
13 . git-sh-setup || die "Not a git archive."
15 final=.dotest/final-commit
17 ## If this file exists, we ask before applying
19 query_apply=.dotest/.query_apply
21 ## We do not munge the first line of the commit message too much
22 ## if this file exists.
23 keep_subject=.dotest/.keep_subject
26 MSGFILE=$1
27 PATCHFILE=$2
28 INFO=$3
29 SIGNOFF=$4
30 EDIT=${VISUAL:-${EDITOR:-vi}}
32 export GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' .dotest/info)"
33 export GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' .dotest/info)"
34 export GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' .dotest/info)"
35 export SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' .dotest/info)"
37 if test '' != "$SIGNOFF"
38 then
39 if test -f "$SIGNOFF"
40 then
41 SIGNOFF=`cat "$SIGNOFF"` || exit
42 elif case "$SIGNOFF" in yes | true | me | please) : ;; *) false ;; esac
43 then
44 SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e '
45 s/>.*/>/
46 s/^/Signed-off-by: /'
48 else
49 SIGNOFF=
51 if test '' != "$SIGNOFF"
52 then
53 LAST_SIGNED_OFF_BY=`
54 sed -ne '/^Signed-off-by: /p' "$MSGFILE" |
55 tail -n 1
57 test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" ||
58 echo "$SIGNOFF" >>"$MSGFILE"
62 patch_header=
63 test -f "$keep_subject" || patch_header='[PATCH] '
66 echo "$patch_header$SUBJECT"
67 if test -s "$MSGFILE"
68 then
69 echo
70 cat "$MSGFILE"
72 } >"$final"
74 interactive=yes
75 test -f "$query_apply" || interactive=no
77 while [ "$interactive" = yes ]; do
78 echo "Commit Body is:"
79 echo "--------------------------"
80 cat "$final"
81 echo "--------------------------"
82 echo -n "Apply? [y]es/[n]o/[e]dit/[a]ccept all "
83 read reply
84 case "$reply" in
85 y|Y) interactive=no;;
86 n|N) exit 2;; # special value to tell dotest to keep going
87 e|E) "$EDIT" "$final";;
88 a|A) rm -f "$query_apply"
89 interactive=no ;;
90 esac
91 done
93 if test -x "$GIT_DIR"/hooks/applypatch-msg
94 then
95 "$GIT_DIR"/hooks/applypatch-msg "$final" || exit
98 echo
99 echo Applying "'$SUBJECT'"
100 echo
102 git-apply --index "$PATCHFILE" || exit 1
104 if test -x "$GIT_DIR"/hooks/pre-applypatch
105 then
106 "$GIT_DIR"/hooks/pre-applypatch || exit
109 tree=$(git-write-tree) || exit 1
110 echo Wrote tree $tree
111 commit=$(git-commit-tree $tree -p $(cat "$GIT_DIR"/HEAD) < "$final") || exit 1
112 echo Committed: $commit
113 echo $commit > "$GIT_DIR"/HEAD
115 if test -x "$GIT_DIR"/hooks/post-applypatch
116 then
117 "$GIT_DIR"/hooks/post-applypatch