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Add the simple scripts I used to do a merge with content conflicts.

They sure as hell aren't perfect, but they allow you to do:

	./git-pull-script {other-git-directory}

to do the initial merge, and if that had content clashes, you do

	merge-cache ./git-merge-one-file-script -a

which tries to auto-merge. When/if the auto-merge fails, it will
leave the last file in your working directory, and you can edit
it and then when you're happy you can do "update-cache filename"
on it. Re-do the merge-cache thing until there are no files left
to be merged, and now you can write the tree and commit:

	write-tree
	commit-tree .... -p $(cat .git/HEAD) -p $(cat .git/MERGE_HEAD)

and you're done.
maint
Linus Torvalds 20 years ago
parent
commit
839a7a06f3
  1. 35
      git-merge-one-file-script
  2. 2
      git-prune-script
  3. 46
      git-pull-script

35
git-merge-one-file-script

@ -0,0 +1,35 @@ @@ -0,0 +1,35 @@
#!/bin/sh
#
# This is the git merge script, called with
#
# $1 - original file (or empty string)
# $2 - file in branch1 (or empty string)
# $3 - file in branch2 (or empty string)
# $4 - pathname in repository
#
#
# Case 1: file removed in both
#
if [ -z "$2$3" ]; then
rm -- "$4"
update-cache --remove -- "$4"
exit 0
fi
#
# Case 2: file exists in just one
#
if [ "$2$3" == "$3$2" ]; then
cat "$2$3" > "$4"
update-cache --add -- "$4"
exit 0
fi
#
# Case 3: file exists in both
#
src="$1"
if [ -z "$1" ]; then
src=/dev/null
fi
echo "Auto-merging $4"
cp "$3" "$4"
merge "$4" "$src" "$2" && update-cache --add -- "$4"

2
git-prune-script

@ -0,0 +1,2 @@ @@ -0,0 +1,2 @@
#!/bin/sh
fsck-cache --unreachable $(cat .git/HEAD ) | grep unreachable | cut -d' ' -f3 | sed 's:^\(..\):.git/objects/\1/:' | xargs rm

46
git-pull-script

@ -0,0 +1,46 @@ @@ -0,0 +1,46 @@
#!/bin/sh
#
# use "$1" or something in a real script, this
# just hard-codes it.
#
merge_repo=$1

echo "Getting object database"
rsync -avz --ignore-existing $merge_repo/ .git/

echo "Getting remote head"
rsync -avz $merge_repo/HEAD .git/MERGE_HEAD

head=$(cat .git/HEAD)
merge_head=$(cat .git/MERGE_HEAD)
common=$(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=$(cat-file commit $common | sed 's/tree //;q')
head_tree=$(cat-file commit $head | sed 's/tree //;q')
merge_tree=$(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
read-tree $merge_tree && checkout-cache -f -a
echo $merge_head > .git/HEAD
exit 0
fi
echo "Trying to merge $merge_head into $head"
read-tree -m $common_tree $head_tree $merge_tree
result_tree=$(write-tree) || exit 1
result_commit=$(echo "Merge $merge_repo" | commit-tree $result_tree -p $head -p $merge_head)
echo "Committed merge $result_commit"
echo $result_commit > .git/HEAD
read-tree $result_tree && checkout-cache -f -a
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