Revision abfef3bbf5f637c86032763632393ce1ffd23ccc authored by Jakob Stoklund Olesen on 17 April 2014, 06:54:05 UTC, committed by Eric Wong on 24 October 2014, 22:55:26 UTC
In a Subversion repository where many feature branches are merged into a
trunk, the svn:mergeinfo property can grow very large. This severely
slows down git-svn's make_log_entry() because it is checking all
mergeinfo entries every time the property changes.

In most cases, the additions to svn:mergeinfo since the last commit are
pretty small, and there is nothing to gain by checking merges that were
already checked for the last commit in the branch.

Add a mergeinfo_changes() function which computes the set of interesting
changes to svn:mergeinfo since the last commit. Filter out merged
branches whose ranges haven't changed, and remove a common prefix of
ranges from other merged branches.

This speeds up "git svn fetch" by several orders of magnitude on a large
repository where thousands of feature branches have been merged.

Signed-off-by: Jakob Stoklund Olesen <stoklund@2pi.dk>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
1 parent fbecd99
Raw File
remotes2config.sh
#!/bin/sh

# Use this tool to rewrite your .git/remotes/ files into the config.

. git-sh-setup

if [ -d "$GIT_DIR"/remotes ]; then
	echo "Rewriting $GIT_DIR/remotes" >&2
	error=0
	# rewrite into config
	{
		cd "$GIT_DIR"/remotes
		ls | while read f; do
			name=$(printf "$f" | tr -c "A-Za-z0-9-" ".")
			sed -n \
			-e "s/^URL:[ 	]*\(.*\)$/remote.$name.url \1 ./p" \
			-e "s/^Pull:[ 	]*\(.*\)$/remote.$name.fetch \1 ^$ /p" \
			-e "s/^Push:[ 	]*\(.*\)$/remote.$name.push \1 ^$ /p" \
			< "$f"
		done
		echo done
	} | while read key value regex; do
		case $key in
		done)
			if [ $error = 0 ]; then
				mv "$GIT_DIR"/remotes "$GIT_DIR"/remotes.old
			fi ;;
		*)
			echo "git config $key "$value" $regex"
			git config $key "$value" $regex || error=1 ;;
		esac
	done
fi
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