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#!/bin/sh
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#
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# Resolve two trees.
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#
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head="$1"
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merge="$2"
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merge_repo="$3"
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rm -f .git/MERGE_HEAD .git/ORIG_HEAD
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echo $head > .git/ORIG_HEAD
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echo $merge > .git/MERGE_HEAD
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#
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# The remote name is just used for the message,
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# but we do want it.
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#
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if [ "$merge_repo" == "" ]; then
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echo "git-resolve-script <head> <remote> <merge-repo-name>"
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exit 1
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fi
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common=$(git-merge-base $head $merge)
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if [ -z "$common" ]; then
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echo "Unable to find common commit between" $merge $head
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exit 1
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fi
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if [ "$common" == "$merge" ]; then
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echo "Already up-to-date. Yeeah!"
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exit 0
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fi
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if [ "$common" == "$head" ]; then
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echo "Updating from $head to $merge."
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echo "Destroying all noncommitted data!"
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echo "Kill me within 3 seconds.."
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sleep 3
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git-read-tree -m $merge && git-checkout-cache -f -a && git-update-cache --refresh
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echo $merge > .git/HEAD
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git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1
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exit 0
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fi
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echo "Trying to merge $merge into $head"
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git-read-tree -m $common $head $merge
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merge_msg="Merge of $merge_repo"
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result_tree=$(git-write-tree 2> /dev/null)
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if [ $? -ne 0 ]; then
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echo "Simple merge failed, trying Automatic merge"
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git-merge-cache git-merge-one-file-script -a
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merge_msg="Automatic merge of $merge_repo"
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result_tree=$(git-write-tree) || exit 1
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fi
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result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge)
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echo "Committed merge $result_commit"
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echo $result_commit > .git/HEAD
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git-checkout-cache -f -a && git-update-cache --refresh
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git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1
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