1 files changed, 157 insertions, 0 deletions
diff --git a/subprojects/sonar-dev-maven-plugin/src/main/java/org/sonar/dev/TrimMojo.java b/subprojects/sonar-dev-maven-plugin/src/main/java/org/sonar/dev/TrimMojo.java
new file mode 100644
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+++ b/subprojects/sonar-dev-maven-plugin/src/main/java/org/sonar/dev/TrimMojo.java
@@ -0,0 +1,157 @@
+/*
+ * Sonar, open source software quality management tool.
+ * Copyright (C) 2009 SonarSource SA
+ * mailto:contact AT sonarsource DOT com
+ *
+ * Sonar is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * Sonar is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Sonar; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
+ */
+package org.sonar.dev;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.io.LineIterator;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.codehaus.plexus.util.DirectoryScanner;
+import org.codehaus.plexus.util.StringUtils;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * @goal trim
+ */
+public class TrimMojo extends AbstractMojo {
+
+  /**
+   * @parameter
+   * @required
+   */
+  private File directory;
+
+  /**
+   * List of ant-style patterns. If
+   * this is not specified, allfiles in the project source directories are included.
+   *
+   * @parameter
+   */
+  private String[] includes;
+
+  /**
+   * @parameter
+   */
+  private String[] excludes;
+
+
+  /**
+   * Specifies the encoding of the source files.
+   *
+   * @parameter expression="${encoding}" default-value="${project.build.sourceEncoding}"
+   */
+  private String sourceEncoding;
+
+  public void execute() throws MojoExecutionException, MojoFailureException {
+    if (shouldExecute()) {
+      trimDirectory();
+    }
+  }
+
+  private void trimDirectory() throws MojoExecutionException {
+    File[] files = scanFiles();
+    for (File file : files) {
+      StringBuilder sb = new StringBuilder();
+      try {
+        LineIterator lines = FileUtils.lineIterator(file, sourceEncoding);
+        while (lines.hasNext()) {
+          String line = lines.nextLine();
+          if (StringUtils.isNotBlank(line)) {
+            sb.append(StringUtils.trim(line));
+            sb.append(IOUtils.LINE_SEPARATOR);
+          }
+        }
+        FileUtils.writeStringToFile(file, sb.toString(), sourceEncoding);
+
+      } catch (IOException e) {
+        throw new MojoExecutionException("Can not trim the file " + file, e);
+      }
+    }
+    getLog().info("Trimmed files: " + files.length);
+  }
+
+  private boolean shouldExecute() {
+    return directory != null && directory.exists();
+  }
+
+  /**
+   * gets a list of all files in the source directory.
+   *
+   * @return the list of all files in the source directory;
+   */
+  private File[] scanFiles() {
+    String[] defaultIncludes = {"**\\*"};
+    DirectoryScanner ds = new DirectoryScanner();
+    if (includes == null) {
+      ds.setIncludes(defaultIncludes);
+    } else {
+      ds.setIncludes(includes);
+    }
+    ds.addDefaultExcludes(); // .svn, ...
+    if (excludes != null) {
+      ds.setExcludes(excludes);
+    }
+    ds.setBasedir(directory);
+    getLog().info("Scanning directory " + directory);
+    ds.scan();
+    int maxFiles = ds.getIncludedFiles().length;
+    File[] result = new File[maxFiles];
+    for (int i = 0; i < maxFiles; i++) {
+      result[i] = new File(directory, ds.getIncludedFiles()[i]);
+    }
+    return result;
+  }
+
+  public File getDirectory() {
+    return directory;
+  }
+
+  public void setDirectory(File directory) {
+    this.directory = directory;
+  }
+
+  public String[] getIncludes() {
+    return includes;
+  }
+
+  public void setIncludes(String[] includes) {
+    this.includes = includes;
+  }
+
+  public String[] getExcludes() {
+    return excludes;
+  }
+
+  public void setExcludes(String[] excludes) {
+    this.excludes = excludes;
+  }
+
+  public String getSourceEncoding() {
+    return sourceEncoding;
+  }
+
+  public void setSourceEncoding(String sourceEncoding) {
+    this.sourceEncoding = sourceEncoding;
+  }
+}