3 # Copyright (c) 2005 Linus Torvalds
4 # Copyright (c) 2005 Junio C Hamano
16 die "What are you talking about?" ;;
22 die "usage git $me [-n] [-r] <commit-ish>"
25 die "usage git $me [-n] <commit-ish>"
31 while case "$#" in 0) break ;; esac
34 -n|--n|--no|--no-|--no-c|--no-co|--no-com|--no-comm|\
35 --no-commi|--no-commit)
38 -e|--e|--ed|--edi|--edit)
41 -n|--n|--no|--no-|--no-e|--no-ed|--no-edi|--no-edit)
44 -r|--r|--re|--rep|--repl|--repla|--replay)
57 test "$me,$replay" = "revert,t" && usage
61 # We do not intend to commit immediately. We just want to
62 # merge the differences in.
63 head=$(git-write-tree) ||
64 die "Your index file is unmerged."
67 head=$(git-rev-parse --verify HEAD) ||
68 die "You do not have a valid HEAD"
69 files=$(git-diff-index --cached --name-only $head) || exit
71 die "Dirty index: cannot $me (dirty: $files)"
76 rev=$(git-rev-parse --verify "$@") &&
77 commit=$(git-rev-parse --verify "$rev^0") ||
78 die "Not a single commit $@"
79 prev=$(git-rev-parse --verify "$commit^1" 2>/dev/null) ||
80 die "Cannot run $me a root commit"
81 git-rev-parse --verify "$commit^2" >/dev/null 2>&1 &&
82 die "Cannot run $me a multi-parent commit."
84 # "commit" is an existing commit. We would want to apply
85 # the difference it introduces since its first parent "prev"
86 # on top of the current HEAD if we are cherry-pick. Or the
87 # reverse of it if we are revert.
91 git-rev-list --pretty=oneline --max-count=1 $commit |
96 echo "This reverts $commit commit."
97 test "$rev" = "$commit" ||
98 echo "(original 'git revert' arguments: $@)"
99 base=$commit next=$prev
106 s/^author \([^<]*\) <[^>]*> .*$/\1/
108 s/.*/GIT_AUTHOR_NAME='\''&'\''/p
111 s/^author [^<]* <\([^>]*\)> .*$/\1/
113 s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
116 s/^author [^<]* <[^>]*> \(.*\)$/\1/
118 s/.*/GIT_AUTHOR_DATE='\''&'\''/p
122 set_author_env=`git-cat-file commit "$commit" |
123 LANG=C LC_ALL=C sed -ne "$pick_author_script"`
124 eval "$set_author_env"
125 export GIT_AUTHOR_NAME
126 export GIT_AUTHOR_EMAIL
127 export GIT_AUTHOR_DATE
129 git-cat-file commit $commit | sed -e '1,/^$/d'
132 echo "(cherry picked from $commit commit)"
133 test "$rev" = "$commit" ||
134 echo "(original 'git cherry-pick' arguments: $@)"
137 base=$prev next=$commit
142 # This three way merge is an interesting one. We are at
143 # $head, and would want to apply the change between $commit
144 # and $prev on top of us (when reverting), or the change between
145 # $prev and $commit on top of us (when cherry-picking or replaying).
147 echo >&2 "First trying simple merge strategy to $me."
148 git-read-tree -m -u $base $head $next &&
149 result=$(git-write-tree 2>/dev/null) || {
150 echo >&2 "Simple $me fails; trying Automatic $me."
151 git-merge-index -o git-merge-one-file -a || {
152 echo >&2 "Automatic $me failed. After fixing it up,"
153 echo >&2 "you can use \"git commit -F .msg\""
156 echo >&2 "You may choose to use the following when making"
157 echo >&2 "the commit:"
158 echo >&2 "$set_author_env"
162 result=$(git-write-tree) || exit
164 echo >&2 "Finished one $me."
166 # If we are cherry-pick, and if the merge did not result in
167 # hand-editing, we will hit this commit and inherit the original
168 # author date and name.
169 # If we are revert, or if our cherry-pick results in a hand merge,
170 # we had better say that the current user is responsible for that.
174 git-commit -n -F .msg $edit