move core plugins back to main repository, because of a broken release management

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/installer/HgPackageInstaller.java

@@ -0,0 +1,269 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.installer;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.io.ZipUnArchiver;
+import sonia.scm.net.HttpClient;
+import sonia.scm.repository.HgConfig;
+import sonia.scm.repository.HgRepositoryHandler;
+import sonia.scm.util.IOUtil;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import java.text.MessageFormat;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class HgPackageInstaller implements Runnable
+{
+
+  /** the logger for HgPackageInstaller */
+  private static final Logger logger =
+    LoggerFactory.getLogger(HgPackageInstaller.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   *
+   *
+   * @param client
+   * @param handler
+   * @param baseDirectory
+   * @param pkg
+   */
+  public HgPackageInstaller(HttpClient client, HgRepositoryHandler handler,
+                            File baseDirectory, HgPackage pkg)
+  {
+    this.client = client;
+    this.handler = handler;
+    this.baseDirectory = baseDirectory;
+    this.pkg = pkg;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public boolean install()
+  {
+    boolean success = false;
+    File downloadedFile = downloadFile();
+
+    if ((downloadedFile != null) && downloadedFile.exists())
+    {
+      File directory = extractPackage(downloadedFile);
+
+      if ((directory != null) && directory.exists())
+      {
+        updateConfig(directory);
+        success = true;
+      }
+    }
+
+    return success;
+  }
+
+  /**
+   * Method description
+   *
+   */
+  @Override
+  public void run()
+  {
+    if (!install())
+    {
+      logger.error("installation of pkg {} failed", pkg.getId());
+    }
+    else if (logger.isInfoEnabled())
+    {
+      logger.info("successfully installed pkg {}", pkg.getId());
+    }
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  private File downloadFile()
+  {
+    File file = null;
+    InputStream input = null;
+    OutputStream output = null;
+
+    try
+    {
+      file = File.createTempFile("scm-hg-", ".pkg");
+
+      if (logger.isDebugEnabled())
+      {
+        logger.debug("download package to {}", file.getAbsolutePath());
+      }
+
+      // TODO error handling
+      input = client.get(pkg.getUrl()).getContent();
+      output = new FileOutputStream(file);
+      IOUtil.copy(input, output);
+    }
+    catch (IOException ex)
+    {
+      logger.error("could not downlaod file ".concat(pkg.getUrl()), ex);
+    }
+    finally
+    {
+      IOUtil.close(input);
+      IOUtil.close(output);
+    }
+
+    return file;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param file
+   *
+   * @return
+   */
+  private File extractPackage(File file)
+  {
+    File directory = new File(baseDirectory,
+                              "pkg".concat(File.separator).concat(pkg.getId()));
+
+    IOUtil.mkdirs(directory);
+
+    try
+    {
+      IOUtil.extract(file, directory, ZipUnArchiver.EXTENSION);
+    }
+    catch (IOException ex)
+    {
+      directory = null;
+      logger.error("could not extract pacakge ".concat(pkg.getId()), ex);
+    }
+    finally
+    {
+
+      // delete temp file
+      try
+      {
+        IOUtil.delete(file, true);
+      }
+      catch (IOException ex)
+      {
+        logger.error(ex.getMessage(), ex);
+      }
+    }
+
+    return directory;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param directory
+   */
+  private void updateConfig(File directory)
+  {
+    String path = directory.getAbsolutePath();
+    HgConfig template = pkg.getHgConfigTemplate();
+    HgConfig config = handler.getConfig();
+
+    config.setHgBinary(getTemplateValue(template.getHgBinary(), path));
+    config.setPythonBinary(getTemplateValue(template.getPythonBinary(), path));
+    config.setPythonPath(getTemplateValue(template.getPythonPath(), path));
+    config.setUseOptimizedBytecode(template.isUseOptimizedBytecode());
+    handler.storeConfig();
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param template
+   * @param path
+   *
+   * @return
+   */
+  private String getTemplateValue(String template, String path)
+  {
+    String result = null;
+
+    if (template != null)
+    {
+      result = MessageFormat.format(template, path);
+    }
+
+    return result;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private File baseDirectory;
+
+  /** Field description */
+  private HttpClient client;
+
+  /** Field description */
+  private HgRepositoryHandler handler;
+
+  /** Field description */
+  private HgPackage pkg;
+}