From: Linus Torvalds Date: Thu, 5 May 2005 18:43:30 +0000 (-0700) Subject: Split "git-pull-script" into two parts X-Git-Tag: v0.99~640 X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=67cc5c4ef8b84961946e58bfb896c11b7fd33cc7;p=git.git Split "git-pull-script" into two parts Separate out the merge resolve from the actual getting of the data. Also, update the resolve phase to take advantage of the fact that we don't need to do the commit->tree object lookup by hand, since all the actors involved happily just act on a commit object these days. --- diff --git a/Makefile b/Makefile index 99b4753d..a8d41757 100644 --- a/Makefile +++ b/Makefile @@ -13,7 +13,7 @@ CC=gcc AR=ar SCRIPTS=git-apply-patch-script git-merge-one-file-script git-prune-script \ - git-pull-script git-tag-script + git-pull-script git-tag-script git-resolve-script PROG= git-update-cache git-diff-files git-init-db git-write-tree \ git-read-tree git-commit-tree git-cat-file git-fsck-cache \ diff --git a/git-pull-script b/git-pull-script index 44cb6d5a..d35a4a1b 100755 --- a/git-pull-script +++ b/git-pull-script @@ -6,54 +6,10 @@ merge_repo=$1 merge_name=${2:-HEAD} -rm -f .git/MERGE_HEAD .git/ORIG_HEAD -cp .git/HEAD .git/ORIG_HEAD - echo "Getting object database" rsync -avz --ignore-existing $merge_repo/objects/. ${SHA1_FILE_DIRECTORY:-.git/objects}/. echo "Getting remote $merge_name" rsync -L $merge_repo/$merge_name .git/MERGE_HEAD || exit 1 -head=$(cat .git/HEAD) -merge_head=$(cat .git/MERGE_HEAD) -common=$(git-merge-base $head $merge_head) -if [ -z "$common" ]; then - echo "Unable to find common commit between" $merge_head $head - exit 1 -fi - -# Get the trees associated with those commits -common_tree=$(git-cat-file commit $common | sed 's/tree //;q') -head_tree=$(git-cat-file commit $head | sed 's/tree //;q') -merge_tree=$(git-cat-file commit $merge_head | sed 's/tree //;q') - -if [ "$common" == "$merge_head" ]; then - echo "Already up-to-date. Yeeah!" - exit 0 -fi -if [ "$common" == "$head" ]; then - echo "Updating from $head to $merge_head." - echo "Destroying all noncommitted data!" - echo "Kill me within 3 seconds.." - sleep 3 - git-read-tree -m $merge_tree && git-checkout-cache -f -a && git-update-cache --refresh - echo $merge_head > .git/HEAD - git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1 - exit 0 -fi -echo "Trying to merge $merge_head into $head" -git-read-tree -m $common_tree $head_tree $merge_tree -merge_msg="Merge of $merge_repo" -result_tree=$(git-write-tree 2> /dev/null) -if [ $? -ne 0 ]; then - echo "Simple merge failed, trying Automatic merge" - git-merge-cache git-merge-one-file-script -a - merge_msg="Automatic merge of $merge_repo" - result_tree=$(git-write-tree) || exit 1 -fi -result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge_head) -echo "Committed merge $result_commit" -echo $result_commit > .git/HEAD -git-checkout-cache -f -a && git-update-cache --refresh -git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1 +git-resolve-script "$(cat .git/HEAD)" "$(cat .git/MERGE_HEAD)" "$merge_repo" diff --git a/git-resolve-script b/git-resolve-script new file mode 100644 index 00000000..c04c0307 --- /dev/null +++ b/git-resolve-script @@ -0,0 +1,56 @@ +#!/bin/sh +# +# Resolve two trees. +# +head="$1" +merge="$2" +merge_repo="$3" + +rm -f .git/MERGE_HEAD .git/ORIG_HEAD +echo $head > .git/ORIG_HEAD +echo $merge > .git/MERGE_HEAD + +# +# The remote name is just used for the message, +# but we do want it. +# +if [ "$merge_repo" == "" ]; then + echo "git-resolve-script " + exit 1 +fi + +common=$(git-merge-base $head $merge) +if [ -z "$common" ]; then + echo "Unable to find common commit between" $merge $head + exit 1 +fi + +if [ "$common" == "$merge" ]; then + echo "Already up-to-date. Yeeah!" + exit 0 +fi +if [ "$common" == "$head" ]; then + echo "Updating from $head to $merge." + echo "Destroying all noncommitted data!" + echo "Kill me within 3 seconds.." + sleep 3 + git-read-tree -m $merge && git-checkout-cache -f -a && git-update-cache --refresh + echo $merge > .git/HEAD + git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1 + exit 0 +fi +echo "Trying to merge $merge into $head" +git-read-tree -m $common $head $merge +merge_msg="Merge of $merge_repo" +result_tree=$(git-write-tree 2> /dev/null) +if [ $? -ne 0 ]; then + echo "Simple merge failed, trying Automatic merge" + git-merge-cache git-merge-one-file-script -a + merge_msg="Automatic merge of $merge_repo" + result_tree=$(git-write-tree) || exit 1 +fi +result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge_head) +echo "Committed merge $result_commit" +echo $result_commit > .git/HEAD +git-checkout-cache -f -a && git-update-cache --refresh +git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1