#/usr/bin/env bash

echo "BUILDKITE_BUILD_CHECKOUT_PATH: $BUILDKITE_BUILD_CHECKOUT_PATH"
echo "BUILDKITE_BUILD_PATH: $BUILDKITE_BUILD_PATH"
echo "unlocking git"
taskkill -F -IM git.exe
rm -f "$BUILDKITE_BUILD_CHECKOUT_PATH/.git/index.lock"
echo 'running processes (before)'
ps aux | grep "$BUILDKITE_BUILD_CHECKOUT_PATH"
echo "unlocking $BUILDKITE_BUILD_CHECKOUT_PATH"
handle -nobanner "$BUILDKITE_BUILD_CHECKOUT_PATH"
powershell /c/scripts/unlock_path.ps1 "$BUILDKITE_BUILD_CHECKOUT_PATH"
echo 'running processes (after)'
ps aux | grep "$BUILDKITE_BUILD_CHECKOUT_PATH"

echo "BUILDKITE_REPO: $BUILDKITE_REPO"
if [ -d "$BUILDKITE_BUILD_CHECKOUT_PATH" ]; then
    cd "$BUILDKITE_BUILD_CHECKOUT_PATH" || exit
    remoteUrl=$(git remote get-url origin || echo "not a git repo")
    echo "current remote URL: $remoteUrl"
    if [ "$remoteUrl" != "$BUILDKITE_REPO" ]; then
        echo "Remote URL does not match. Deleting and recreating the directory."
        cd /c/
        rm -rf "$BUILDKITE_BUILD_CHECKOUT_PATH"
        rm -rf /c/ws/git_gc_counter
    else
        # Run git gc from time to time to prevent repo from growing.
        echo -n "x" >> /c/ws/git_gc_counter
        echo "GC counter $(wc -c < /c/ws/git_gc_counter)/10"
        if [ "$(wc -c < /c/ws/git_gc_counter)" -gt 10 ]; then
            echo "Running 'git gc'..."
            git gc
            rm -rf /c/ws/git_gc_counter
        fi
    fi
fi