Staging
v0.8.1
v0.8.1
Revision 5d6b151fdd0a9e41ba68b444760616da1a008433 authored by Johannes Schindelin on 28 December 2006, 16:13:33 UTC, committed by Junio C Hamano on 28 December 2006, 21:59:39 UTC
The function xdl_refine_conflicts() tries to break down huge conflicts by doing a diff on the conflicting regions. However, this does not make sense when one side is empty. Worse, when one side is not only empty, but after EOF, the code accessed unmapped memory. Noticed by Luben Tuikov, Shawn Pearce and Alexandre Julliard, the latter providing a test case. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 4a4d94b
git-revert.sh
#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2005 Junio C Hamano
#
case "$0" in
*-revert* )
test -t 0 && edit=-e
replay=
me=revert
USAGE='[--edit | --no-edit] [-n] <commit-ish>' ;;
*-cherry-pick* )
replay=t
edit=
me=cherry-pick
USAGE='[--edit] [-n] [-r] [-x] <commit-ish>' ;;
* )
die "What are you talking about?" ;;
esac
. git-sh-setup
no_commit=
while case "$#" in 0) break ;; esac
do
case "$1" in
-n|--n|--no|--no-|--no-c|--no-co|--no-com|--no-comm|\
--no-commi|--no-commit)
no_commit=t
;;
-e|--e|--ed|--edi|--edit)
edit=-e
;;
--n|--no|--no-|--no-e|--no-ed|--no-edi|--no-edit)
edit=
;;
-r)
: no-op ;;
-x|--i-really-want-to-expose-my-private-commit-object-name)
replay=
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
test "$me,$replay" = "revert,t" && usage
case "$no_commit" in
t)
# We do not intend to commit immediately. We just want to
# merge the differences in.
head=$(git-write-tree) ||
die "Your index file is unmerged."
;;
*)
head=$(git-rev-parse --verify HEAD) ||
die "You do not have a valid HEAD"
files=$(git-diff-index --cached --name-only $head) || exit
if [ "$files" ]; then
die "Dirty index: cannot $me (dirty: $files)"
fi
;;
esac
rev=$(git-rev-parse --verify "$@") &&
commit=$(git-rev-parse --verify "$rev^0") ||
die "Not a single commit $@"
prev=$(git-rev-parse --verify "$commit^1" 2>/dev/null) ||
die "Cannot run $me a root commit"
git-rev-parse --verify "$commit^2" >/dev/null 2>&1 &&
die "Cannot run $me a multi-parent commit."
# "commit" is an existing commit. We would want to apply
# the difference it introduces since its first parent "prev"
# on top of the current HEAD if we are cherry-pick. Or the
# reverse of it if we are revert.
case "$me" in
revert)
git-rev-list --pretty=oneline --max-count=1 $commit |
sed -e '
s/^[^ ]* /Revert "/
s/$/"/'
echo
echo "This reverts commit $commit."
test "$rev" = "$commit" ||
echo "(original 'git revert' arguments: $@)"
base=$commit next=$prev
;;
cherry-pick)
pick_author_script='
/^author /{
s/'\''/'\''\\'\'\''/g
h
s/^author \([^<]*\) <[^>]*> .*$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_NAME='\''&'\''/p
g
s/^author [^<]* <\([^>]*\)> .*$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
g
s/^author [^<]* <[^>]*> \(.*\)$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_DATE='\''&'\''/p
q
}'
set_author_env=`git-cat-file commit "$commit" |
LANG=C LC_ALL=C sed -ne "$pick_author_script"`
eval "$set_author_env"
export GIT_AUTHOR_NAME
export GIT_AUTHOR_EMAIL
export GIT_AUTHOR_DATE
git-cat-file commit $commit | sed -e '1,/^$/d'
case "$replay" in
'')
echo "(cherry picked from commit $commit)"
test "$rev" = "$commit" ||
echo "(original 'git cherry-pick' arguments: $@)"
;;
esac
base=$prev next=$commit
;;
esac >.msg
# This three way merge is an interesting one. We are at
# $head, and would want to apply the change between $commit
# and $prev on top of us (when reverting), or the change between
# $prev and $commit on top of us (when cherry-picking or replaying).
echo >&2 "First trying simple merge strategy to $me."
git-read-tree -m -u --aggressive $base $head $next &&
result=$(git-write-tree 2>/dev/null) || {
echo >&2 "Simple $me fails; trying Automatic $me."
git-merge-index -o git-merge-one-file -a || {
mv -f .msg "$GIT_DIR/MERGE_MSG"
{
echo '
Conflicts:
'
git ls-files --unmerged |
sed -e 's/^[^ ]* / /' |
uniq
} >>"$GIT_DIR/MERGE_MSG"
echo >&2 "Automatic $me failed. After resolving the conflicts,"
echo >&2 "mark the corrected paths with 'git-add <paths>'"
echo >&2 "and commit the result."
case "$me" in
cherry-pick)
echo >&2 "You may choose to use the following when making"
echo >&2 "the commit:"
echo >&2 "$set_author_env"
esac
exit 1
}
result=$(git-write-tree) || exit
}
echo >&2 "Finished one $me."
# If we are cherry-pick, and if the merge did not result in
# hand-editing, we will hit this commit and inherit the original
# author date and name.
# If we are revert, or if our cherry-pick results in a hand merge,
# we had better say that the current user is responsible for that.
case "$no_commit" in
'')
git-commit -n -F .msg $edit
rm -f .msg
;;
esac
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