Mercurial > hg > truffle

annotate graal/com.oracle.max.base/src/com/sun/max/ide/JavaProject.java @ 4184:fa6b78681c54

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Added copyright check to the gate.
author Doug Simon <doug.simon@oracle.com>
date Tue, 03 Jan 2012 12:37:31 +0100
parents bc8527f3071c
children
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1 /*
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2 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.ide;
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24
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25 import java.io.*;
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26 import java.util.*;
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27
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28 import com.sun.max.program.*;
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29 import com.sun.max.program.Classpath.Entry;
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30
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31 /**
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32 * Software project-dependent configuration derived from the
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33 * {@linkplain Classpath#fromSystem() system class path}.
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34 */
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35 public final class JavaProject {
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36
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37 /**
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38 * System property name specifying a directory containing a Mercurial repository.
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39 */
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40 public static final String HG_ROOT_PROPERTY = "hg.root";
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41
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42 /**
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43 * Determines if a given directory contains a Mercurial repository.
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44 */
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45 public static boolean isHgRoot(File dir) {
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46 return new File(dir, ".hg").isDirectory();
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47 }
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48
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49 private JavaProject() {
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50 }
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51
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52 public static final String SOURCE_DIRECTORY_NAME = "src";
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53
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54 public static final String TEST_SOURCE_DIRECTORY_NAME = "test";
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55
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56 /**
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57 * Gets the paths on which all the class files referenced by a Java project can be found.
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58 *
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59 * @param projClass a class denoting a project (i.e. any class in the project)
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60 * @param includeDependencies if true, the returned path includes the location of the
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61 * class files produced by each of the projects that the current
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62 * project depends upon
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63 */
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64 public static Classpath getClassPath(Class projClass, boolean includeDependencies) {
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65 String classfile = projClass.getName().replace('.', '/') + ".class";
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66 ArrayList<Entry> classPathEntries = new ArrayList<>();
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67 Entry projEntry = null;
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68 for (Entry entry : Classpath.fromSystem().entries()) {
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69 if (entry.contains(classfile)) {
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70 projEntry = entry;
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71 classPathEntries.add(entry);
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72 break;
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73 }
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74 }
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75 if (classPathEntries.isEmpty()) {
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76 throw new JavaProjectNotFoundException("Could not find path to Java project classes");
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77 }
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78 if (includeDependencies) {
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79 for (Entry entry : Classpath.fromSystem().entries()) {
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80 if (entry != projEntry) {
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81 classPathEntries.add(entry);
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82 }
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83 }
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84 }
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85 return new Classpath(classPathEntries);
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86 }
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87
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88 static class HgRootFinder extends ClasspathTraversal {
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89
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90 File hgRoot;
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91 File project;
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92
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93
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94 boolean deriveHgRoot(File start) {
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95 File dir = start;
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96 File child = null;
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97 while (dir != null) {
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98 if (isHgRoot(dir)) {
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99 hgRoot = dir;
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100 project = child;
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101 return true;
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102 }
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103 child = dir;
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104 dir = dir.getParentFile();
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105 }
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106 return false;
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107 }
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108
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109 @Override
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110 protected boolean visitFile(File parent, String resource) {
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111 String classFile = JavaProject.class.getName().replace('.', File.separatorChar) + ".class";
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112 if (resource.equals(classFile)) {
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113 if (deriveHgRoot(parent)) {
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114 return false;
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115 }
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116 }
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117 return true;
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118 }
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119 @Override
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120 protected boolean visitArchiveEntry(java.util.zip.ZipFile archive, java.util.zip.ZipEntry resource) {
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121 String classFile = JavaProject.class.getName().replace('.', File.separatorChar) + ".class";
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122 if (resource.equals(classFile)) {
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123 File archiveFile = new File(archive.getName());
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124 if (deriveHgRoot(archiveFile)) {
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125 return false;
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126 }
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127 }
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128 return true;
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129 }
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130 }
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131
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132 /**
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133 * Gets the directory containing a Mercurial repository based on the {@value JavaProject#HG_ROOT_PROPERTY}
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134 * if it exists otherwise from the {@linkplain Classpath#fromSystem() system class path}.
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135 */
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136 public static File findHgRoot() {
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137 final String prop = System.getProperty(JavaProject.HG_ROOT_PROPERTY);
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138 if (prop != null) {
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139 File dir = new File(prop);
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140 ProgramError.check(isHgRoot(dir), prop + " does not contain a Mercurial repository");
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141 return dir;
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142 }
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143 HgRootFinder finder = new HgRootFinder();
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144 finder.run(Classpath.fromSystem());
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145 ProgramError.check(finder.hgRoot != null, "failed to find a directory containing a Mercurial repository");
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146 return finder.hgRoot;
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147 }
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148
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149 /**
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150 * Gets the paths on which all the Java source files for a Java project can be found.
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151 *
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152 * @param projClass a class denoting a project (i.e. any class in the project)
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153 * @param includeDependencies if true, the returned path includes the location of the
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154 * Java source files for each of the projects that the current
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155 * project depends upon
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156 */
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157 public static Classpath getSourcePath(Class projClass, boolean includeDependencies) {
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158 final Classpath classPath = getClassPath(projClass, includeDependencies);
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159 final List<String> sourcePath = new LinkedList<>();
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160 for (Entry entry : classPath.entries()) {
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161 HgRootFinder finder = new HgRootFinder();
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162 finder.deriveHgRoot(entry.file());
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163 final File projectDirectory = finder.project;
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164 if (projectDirectory != null) {
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165 final File srcDirectory = new File(projectDirectory, SOURCE_DIRECTORY_NAME);
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166 if (srcDirectory.exists() && srcDirectory.isDirectory()) {
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167 sourcePath.add(srcDirectory.getPath());
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168 }
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169
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170 final File testDirectory = new File(projectDirectory, TEST_SOURCE_DIRECTORY_NAME);
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171 if (testDirectory.exists() && testDirectory.isDirectory()) {
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172 sourcePath.add(testDirectory.getPath());
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173 }
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174 if (!includeDependencies) {
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175 break;
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176 }
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177 }
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178 }
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179 if (sourcePath.isEmpty()) {
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180 throw new JavaProjectNotFoundException("Could not find path to Java project sources");
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181 }
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182 return new Classpath(sourcePath.toArray(new String[sourcePath.size()]));
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183 }
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184
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185 /**
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186 * Find the primary source directory for a project.
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187 *
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188 * @param projClass a class denoting a project (i.e. any class in the project)
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189 */
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190 public static File findSourceDirectory(Class projClass) {
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191 return getSourcePath(projClass, false).entries().get(0).file();
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192 }
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193 }