com.google.idea.blaze.base.util.WorkspacePathUtil.java Source code

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Here is the source code for com.google.idea.blaze.base.util.WorkspacePathUtil.java

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/*
 * Copyright 2016 The Bazel Authors. All rights reserved.
 *
 * 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.google.idea.blaze.base.util;

import com.google.common.collect.ImmutableSet;
import com.google.idea.blaze.base.model.primitives.WorkspacePath;
import com.intellij.openapi.util.io.FileUtil;
import java.util.Collection;

/** Removes any duplicates or overlapping directories */
public class WorkspacePathUtil {

    /** Returns whether the given workspace path is a child of any workspace path. */
    public static boolean isUnderAnyWorkspacePath(Collection<WorkspacePath> ancestors, WorkspacePath child) {
        return ancestors.stream().anyMatch(
                importRoot -> FileUtil.isAncestor(importRoot.relativePath(), child.relativePath(), false));
    }

    /** Removes any duplicates or overlapping directories */
    public static ImmutableSet<WorkspacePath> calculateMinimalWorkspacePaths(
            Collection<WorkspacePath> workspacePaths) {
        ImmutableSet.Builder<WorkspacePath> minimalWorkspacePaths = ImmutableSet.builder();
        for (WorkspacePath directory : workspacePaths) {
            boolean ok = true;
            for (WorkspacePath otherDirectory : workspacePaths) {
                if (directory.equals(otherDirectory)) {
                    continue;
                }
                if (FileUtil.isAncestor(otherDirectory.relativePath(), directory.relativePath(), true)) {
                    ok = false;
                    break;
                }
            }
            if (ok) {
                minimalWorkspacePaths.add(directory);
            }
        }
        return minimalWorkspacePaths.build();
    }
}