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[PATCH] git-resolve-script: Add LAST_MERGE and use git-rev-parse

Make git-resolve-script only write MERGE_HEAD if a merge actually
occurred. All merge failures leave ORIG_HEAD and LAST_MERGE
behind (instead of ORIG_HEAD and MERGE_HEAD).

Use git-rev-parse to expand arguments (and check for bad ones).

Signed-off-by: Dan Holmsand <holmsand@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
maint
Dan Holmsand 20 years ago committed by Linus Torvalds
parent
commit
c591412cc0
  1. 24
      git-resolve-script

24
git-resolve-script

@ -4,26 +4,31 @@ @@ -4,26 +4,31 @@
#
# Resolve two trees.
#
head="$1"
merge="$2"
head=$(git-rev-parse --revs-only "$1")
merge=$(git-rev-parse --revs-only "$2")
merge_repo="$3"

: ${GIT_DIR=.git}
: ${GIT_OBJECT_DIRECTORY="${SHA1_FILE_DIRECTORY-"$GIT_DIR/objects"}"}

rm -f "$GIT_DIR"/MERGE_HEAD "$GIT_DIR"/ORIG_HEAD
echo $head > "$GIT_DIR"/ORIG_HEAD
echo $merge > "$GIT_DIR"/MERGE_HEAD
dropheads() {
rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD" \
"$GIT_DIR/LAST_MERGE" || exit 1
}

#
# The remote name is just used for the message,
# but we do want it.
#
if [ "$merge_repo" == "" ]; then
if [ -z "$head" -o -z "$merge" -o -z "$merge_repo" ]; then
echo "git-resolve-script <head> <remote> <merge-repo-name>"
exit 1
fi

dropheads
echo $head > "$GIT_DIR"/ORIG_HEAD
echo $merge > "$GIT_DIR"/LAST_MERGE

common=$(git-merge-base $head $merge)
if [ -z "$common" ]; then
echo "Unable to find common commit between" $merge $head
@ -32,7 +37,7 @@ fi @@ -32,7 +37,7 @@ fi

if [ "$common" == "$merge" ]; then
echo "Already up-to-date. Yeeah!"
rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"
dropheads
exit 0
fi
if [ "$common" == "$head" ]; then
@ -40,7 +45,7 @@ if [ "$common" == "$head" ]; then @@ -40,7 +45,7 @@ if [ "$common" == "$head" ]; then
git-read-tree -u -m $head $merge || exit 1
echo $merge > "$GIT_DIR"/HEAD
git-diff-tree -p ORIG_HEAD HEAD | git-apply --stat
rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"
dropheads
exit 0
fi
echo "Trying to merge $merge into $head"
@ -51,6 +56,7 @@ if [ $? -ne 0 ]; then @@ -51,6 +56,7 @@ if [ $? -ne 0 ]; then
echo "Simple merge failed, trying Automatic merge"
git-merge-cache -o git-merge-one-file-script -a
if [ $? -ne 0 ]; then
echo $merge > "$GIT_DIR"/MERGE_HEAD
echo "Automatic merge failed, fix up by hand"
exit 1
fi
@ -60,4 +66,4 @@ result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $me @@ -60,4 +66,4 @@ result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $me
echo "Committed merge $result_commit"
echo $result_commit > "$GIT_DIR"/HEAD
git-diff-tree -p $head $result_commit | git-apply --stat
rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"
dropheads

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