From 67cc5c4ef8b84961946e58bfb896c11b7fd33cc7 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 5 May 2005 11:43:30 -0700 Subject: [PATCH] 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. --- Makefile | 2 +- git-pull-script | 46 +------------------------------------ git-resolve-script | 56 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+), 46 deletions(-) create mode 100644 git-resolve-script diff --git a/Makefile b/Makefile index 99b4753d3..a8d41757b 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 44cb6d5a8..d35a4a1b2 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 000000000..c04c0307b --- /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 -- 2.26.2