/*
* Copyright 2016 the original author or authors.
*
* 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 org.gradle.api.internal.tasks;
import java.io.File;
import java.util.Collection;
import static org.gradle.internal.FileUtils.canonicalize;
import static org.gradle.util.GFileUtils.mkdirs;
public class TaskOutputsUtil {
public static void validateFile(String propertyName, File file, Collection<String> messages) {
if (file.exists()) {
if (file.isDirectory()) {
messages.add(String.format("Cannot write to file '%s' specified for property '%s' as it is a directory.", file, propertyName));
}
// else, assume we can write to anything that exists and is not a directory
} else {
for (File candidate = file.getParentFile(); candidate != null && !candidate.isDirectory(); candidate = candidate.getParentFile()) {
if (candidate.exists() && !candidate.isDirectory()) {
messages.add(String.format("Cannot write to file '%s' specified for property '%s', as ancestor '%s' is not a directory.", file, propertyName, candidate));
break;
}
}
}
}
public static void validateDirectory(String propertyName, File directory, Collection<String> messages) {
if (directory.exists()) {
if (!directory.isDirectory()) {
messages.add(String.format("Directory '%s' specified for property '%s' is not a directory.", directory, propertyName));
}
} else {
for (File candidate = directory.getParentFile(); candidate != null && !candidate.isDirectory(); candidate = candidate.getParentFile()) {
if (candidate.exists() && !candidate.isDirectory()) {
messages.add(String.format("Cannot write to directory '%s' specified for property '%s', as ancestor '%s' is not a directory.", directory, propertyName, candidate));
return;
}
}
}
}
public static void ensureDirectoryExists(File directory) {
mkdirs(canonicalize(directory));
}
public static void ensureParentDirectoryExists(File file) {
mkdirs(canonicalize(file).getParentFile());
}
}