MakeUtil.java example

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consulo-master
/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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.
 */

/**
 * created at Jan 17, 2002
 * @author Jeka
 */
package com.intellij.compiler.make;

import com.intellij.openapi.compiler.CompileContext;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.roots.ProjectFileIndex;
import com.intellij.openapi.roots.ProjectRootManager;
import com.intellij.openapi.vfs.VfsUtil;
import com.intellij.openapi.vfs.VirtualFile;

public class MakeUtil {
  public static VirtualFile getSourceRoot(CompileContext context, Module module, VirtualFile file) {
    final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(module.getProject()).getFileIndex();
    final VirtualFile root = fileIndex.getSourceRootForFile(file);
    if (root != null) {
      return root;
    }
    // try to find among roots of generated files.
    final VirtualFile[] sourceRoots = context.getSourceRoots(module);
    for (final VirtualFile sourceRoot : sourceRoots) {
      if (fileIndex.isInSourceContent(sourceRoot)) {
        continue; // skip content source roots, need only roots for generated files
      }
      if (VfsUtil.isAncestor(sourceRoot, file, false)) {
        return sourceRoot;
      }
    }
    return null;
  }
}