Add GitCopyrightsAction

4 files changed, 251 insertions, 2 deletions

diff --git a/plugins/org.eclipse.emf.cdo.releng.gitbash/plugin.xml b/plugins/org.eclipse.emf.cdo.releng.gitbash/plugin.xml
index a3f09a4654..63625c7432 100644
--- a/plugins/org.eclipse.emf.cdo.releng.gitbash/plugin.xml
+++ b/plugins/org.eclipse.emf.cdo.releng.gitbash/plugin.xml
@@ -20,6 +20,16 @@
             id="org.eclipse.emf.cdo.releng.gitbash.contribution1"
             objectClass="org.eclipse.egit.ui.internal.repository.tree.RepositoryNode">
          <action
+               class="org.eclipse.emf.cdo.releng.gitbash.repository.GitCopyrightsAction"
+               enablesFor="1"
+               icon="icons/gitbash.gif"
+               id="org.eclipse.emf.cdo.releng.gitbash.GitCopyrightsAction"
+               label="Git Copyrights"
+               menubarPath="additions"
+               state="true"
+               style="push"
+               tooltip="Execute git log"/>
+         <action
                class="org.eclipse.emf.cdo.releng.gitbash.repository.GitCleanAction"
                enablesFor="1"
                icon="icons/gitbash.gif"
diff --git a/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/GitBash.java b/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/GitBash.java
index 3dffbdefeb..1247d952a3 100644
--- a/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/GitBash.java
+++ b/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/GitBash.java
@@ -30,6 +30,8 @@ public class GitBash
 {
   private static final String DEFAULT_EXECUTABLE = "C:\\Program Files (x86)\\Git\\bin\\sh.exe";
 
+  public static boolean quiet;
+
   /**
    * The path to the Git Bash executable.
    */
@@ -91,13 +93,19 @@ public class GitBash
       {
         String message = "Command '" + command + "' executed successfully";
         Activator.log(message + "\n" + output, IStatus.INFO);
-        MessageDialog.openInformation(shell, "Git Bash", message);
+        if (!quiet)
+        {
+          MessageDialog.openInformation(shell, "Git Bash", message);
+        }
       }
       else
       {
         String message = "Command '" + command + "' failed: " + exitValue;
         Activator.log(message + "\n" + output, IStatus.ERROR);
-        MessageDialog.openError(shell, "Git Bash", message);
+        if (!quiet)
+        {
+          MessageDialog.openError(shell, "Git Bash", message);
+        }
       }
     }
     catch (RuntimeException ex)
diff --git a/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/repository/GitCopyrightsAction.java b/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/repository/GitCopyrightsAction.java
new file mode 100644
index 0000000000..abd8bd477f
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.releng.gitbash/src/org/eclipse/emf/cdo/releng/gitbash/repository/GitCopyrightsAction.java
@@ -0,0 +1,231 @@
+/*
+ * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.releng.gitbash.repository;
+
+import org.eclipse.emf.cdo.releng.gitbash.GitBash;
+
+import org.eclipse.swt.widgets.Shell;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author Eike Stepper
+ */
+public class GitCopyrightsAction extends AbstractRepositoryAction
+{
+  private static final String BEGIN_COMMIT = "--BEGIN-COMMIT--";
+
+  private static final String BEGIN_MESSAGE = "--BEGIN-MESSAGE--";
+
+  // "--BEGIN-COMMIT--
+  // committer date
+  // message (multiline)
+  // --BEGIN-SUMMARY--
+  // summary (multiline)"
+  private static final String OUTPUT_FORMAT = BEGIN_COMMIT + "%n%ci%n%B%n" + BEGIN_MESSAGE + "%n";
+
+  @Override
+  protected void run(Shell shell, File workTree) throws Exception
+  {
+    // File outFile = File.createTempFile("copyrights-", ".tmp");
+    File outFile = new File("/develop/copyrights.txt");
+
+    try
+    {
+      GitBash.quiet = true;
+      GitBash.executeCommand(shell, workTree, "git log --name-only --format=\"" + OUTPUT_FORMAT + "\" > \"/"
+          + outFile.getAbsoluteFile().toString().replace(":", "").replace("\\", "/") + "\"");
+    }
+    finally
+    {
+      GitBash.quiet = false;
+    }
+
+    parseFile(outFile);
+  }
+
+  private void parseFile(File file) throws FileNotFoundException, IOException
+  {
+    Map<String, int[]> years = new HashMap<String, int[]>();
+
+    FileReader fileReader = new FileReader(file);
+    BufferedReader bufferedReader = new BufferedReader(fileReader);
+
+    try
+    {
+      LogEntry logEntry;
+
+      // Start of file. First line has to be "--BEGIN-COMMIT--"
+      String line = bufferedReader.readLine();
+      if (line == null)
+      {
+        return; // Empty log
+      }
+
+      if (!line.equals(BEGIN_COMMIT))
+      {
+        throw new IllegalStateException("Read unexpected line " + line + " at beginning of file "
+            + file.getAbsolutePath());
+      }
+
+      // First line successfully read. Start processing of log entries:
+
+      processing: //
+      for (;;)
+      {
+        String date = readLineSafe(bufferedReader);
+        logEntry = new LogEntry(date);
+
+        // Follows the message until the summary marker is read
+        StringBuilder builder = new StringBuilder();
+        while (!(line = readLineSafe(bufferedReader)).equals(BEGIN_MESSAGE))
+        {
+          builder.append(line);
+          builder.append("\n");
+        }
+
+        logEntry.setMessage(builder.toString());
+
+        summaryReading: //
+        for (;;)
+        {
+          line = bufferedReader.readLine();
+          if (line == null)
+          {
+            handleLogEntry(years, logEntry);
+            break processing; // End of file reached
+          }
+
+          if (line.equals(BEGIN_COMMIT))
+          {
+            handleLogEntry(years, logEntry);
+            break summaryReading; // End of summary section reached
+          }
+
+          if (line.trim().length() == 0)
+          {
+            continue; // Read over empty lines
+          }
+
+          // We are in the summary section. Read line should contain a path
+          logEntry.getPaths().add(line);
+        }
+      }
+    }
+    finally
+    {
+      bufferedReader.close();
+      fileReader.close();
+      file.delete();
+    }
+  }
+
+  private String readLineSafe(BufferedReader bufferedReader) throws IOException
+  {
+    String result = bufferedReader.readLine();
+    if (result == null)
+    {
+      throw new IllegalStateException("Unexpected end of stream");
+    }
+
+    return result;
+  }
+
+  private void handleLogEntry(Map<String, int[]> years, LogEntry logEntry)
+  {
+    if (logEntry.getMessage().equalsIgnoreCase("Update copyrights\n"))
+    {
+      return;
+    }
+
+    int year = Integer.parseInt(logEntry.getDate().substring(0, 4));
+
+    for (String path : logEntry.getPaths())
+    {
+      handlePath(years, year, path);
+    }
+  }
+
+  private void handlePath(Map<String, int[]> years, int year, String path)
+  {
+    int[] array = years.get(path);
+    if (array == null)
+    {
+      years.put(path, new int[] { year });
+    }
+    else
+    {
+      for (int i = 0; i < array.length; i++)
+      {
+        if (array[i] == year)
+        {
+          return;
+        }
+      }
+
+      int[] newArray = new int[array.length + 1];
+      System.arraycopy(array, 0, newArray, 0, array.length);
+      newArray[array.length] = year;
+
+      years.put(path, newArray);
+    }
+  }
+
+  /**
+   * @author Eike Stepper
+   */
+  public static class LogEntry
+  {
+    private String date;
+
+    private String message;
+
+    private List<String> paths = new ArrayList<String>();
+
+    public LogEntry(String date)
+    {
+      this.date = date;
+    }
+
+    public String getDate()
+    {
+      return date;
+    }
+
+    public void setDate(String date)
+    {
+      this.date = date;
+    }
+
+    public String getMessage()
+    {
+      return message;
+    }
+
+    public void setMessage(String message)
+    {
+      this.message = message;
+    }
+
+    public List<String> getPaths()
+    {
+      return paths;
+    }
+  }
+}
diff --git a/plugins/org.eclipse.emf.cdo.releng.gitbash/test.txt b/plugins/org.eclipse.emf.cdo.releng.gitbash/test.txt
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.releng.gitbash/test.txt