#! /usr/bin/env bash
#
# This moves the requested test repo to the commit indicated in its commit file.
# If repo or commit file do not exist, it does nothing.
[[ -z "$1" ]] && {
    echo "sync-repo needs a local testsuite repository path as argument"
    exit 1
}

repo="$1"
reponame=$(basename $repo)
commitfile=commit-hash.$reponame

[[ ! -d $repo || ! -f $commitfile ]] && exit 0

commit=$(cat $commitfile)

[[ $commit == $(cd $repo && git rev-parse HEAD) ]] && exit 0

(
    echo "Moving '$reponame' to $commit"
    cd $repo && git -c advice.detachedHead=false checkout $commit
)