/*
* Copyright 2015-present Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package com.facebook.buck.maven;
import com.google.common.base.Preconditions;
import java.util.Comparator;
/** Order dependencies in the same way that Buck expects: ":target", "//alpha:other". */
class BuckDepComparator implements Comparator<String> {
@Override
public int compare(String left, String right) {
Preconditions.checkState(left.length() > 1);
Preconditions.checkState(right.length() > 1);
int lcolon = left.indexOf(':');
int rcolon = right.indexOf(':');
Preconditions.checkState(lcolon != -1);
Preconditions.checkState(rcolon != -1);
String lpath = left.substring(0, lcolon);
String lname = left.substring(lcolon);
String rpath = right.substring(0, rcolon);
String rname = right.substring(rcolon);
int pathComparison = lpath.compareTo(rpath);
if (pathComparison == 0) {
return lname.compareTo(rname);
}
return pathComparison;
}
}