InitCommand.java

  1. /*
  2.  * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com>
  3.  * and other copyright owners as documented in the project's IP log.
  4.  *
  5.  * This program and the accompanying materials are made available
  6.  * under the terms of the Eclipse Distribution License v1.0 which
  7.  * accompanies this distribution, is reproduced below, and is
  8.  * available at http://www.eclipse.org/org/documents/edl-v10.php
  9.  *
  10.  * All rights reserved.
  11.  *
  12.  * Redistribution and use in source and binary forms, with or
  13.  * without modification, are permitted provided that the following
  14.  * conditions are met:
  15.  *
  16.  * - Redistributions of source code must retain the above copyright
  17.  *   notice, this list of conditions and the following disclaimer.
  18.  *
  19.  * - Redistributions in binary form must reproduce the above
  20.  *   copyright notice, this list of conditions and the following
  21.  *   disclaimer in the documentation and/or other materials provided
  22.  *   with the distribution.
  23.  *
  24.  * - Neither the name of the Eclipse Foundation, Inc. nor the
  25.  *   names of its contributors may be used to endorse or promote
  26.  *   products derived from this software without specific prior
  27.  *   written permission.
  28.  *
  29.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  30.  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  31.  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  32.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33.  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  34.  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  35.  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  36.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  37.  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  38.  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39.  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  40.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  41.  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  42.  */
  43. package org.eclipse.jgit.api;

  45. import java.io.File;
  46. import java.io.IOException;
  47. import java.text.MessageFormat;
  48. import java.util.concurrent.Callable;

  50. import org.eclipse.jgit.api.errors.GitAPIException;
  51. import org.eclipse.jgit.api.errors.JGitInternalException;
  52. import org.eclipse.jgit.internal.JGitText;
  53. import org.eclipse.jgit.lib.Constants;
  54. import org.eclipse.jgit.lib.Repository;
  55. import org.eclipse.jgit.lib.RepositoryBuilder;
  56. import org.eclipse.jgit.util.FS;
  57. import org.eclipse.jgit.util.SystemReader;

  59. /**
  60.  * Create an empty git repository or reinitalize an existing one
  61.  *
  62.  * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-init.html"
  63.  *      >Git documentation about init</a>
  64.  */
  65. public class InitCommand implements Callable<Git> {
  66.     private File directory;

  68.     private File gitDir;

  70.     private boolean bare;

  72.     private FS fs;

  74.     /**
  75.      * {@inheritDoc}
  76.      * <p>
  77.      * Executes the {@code Init} command.
  78.      *
  79.      * @return a {@code Git} instance that owns the {@code Repository} that it
  80.      *         wraps.
  81.      */
  82.     @Override
  83.     public Git call() throws GitAPIException {
  84.         try {
  85.             RepositoryBuilder builder = new RepositoryBuilder();
  86.             if (bare)
  87.                 builder.setBare();
  88.             if (fs != null) {
  89.                 builder.setFS(fs);
  90.             }
  91.             builder.readEnvironment();
  92.             if (gitDir != null)
  93.                 builder.setGitDir(gitDir);
  94.             else
  95.                 gitDir = builder.getGitDir();
  96.             if (directory != null) {
  97.                 if (bare)
  98.                     builder.setGitDir(directory);
  99.                 else {
  100.                     builder.setWorkTree(directory);
  101.                     if (gitDir == null)
  102.                         builder.setGitDir(new File(directory, Constants.DOT_GIT));
  103.                 }
  104.             } else if (builder.getGitDir() == null) {
  105.                 String dStr = SystemReader.getInstance()
  106.                         .getProperty("user.dir"); //$NON-NLS-1$
  107.                 if (dStr == null)
  108.                     dStr = "."; //$NON-NLS-1$
  109.                 File d = new File(dStr);
  110.                 if (!bare)
  111.                     d = new File(d, Constants.DOT_GIT);
  112.                 builder.setGitDir(d);
  113.             } else {
  114.                 // directory was not set but gitDir was set
  115.                 if (!bare) {
  116.                     String dStr = SystemReader.getInstance().getProperty(
  117.                             "user.dir"); //$NON-NLS-1$
  118.                     if (dStr == null)
  119.                         dStr = "."; //$NON-NLS-1$
  120.                     builder.setWorkTree(new File(dStr));
  121.                 }
  122.             }
  123.             Repository repository = builder.build();
  124.             if (!repository.getObjectDatabase().exists())
  125.                 repository.create(bare);
  126.             return new Git(repository, true);
  127.         } catch (IOException e) {
  128.             throw new JGitInternalException(e.getMessage(), e);
  129.         }
  130.     }

  132.     /**
  133.      * The optional directory associated with the init operation. If no
  134.      * directory is set, we'll use the current directory
  135.      *
  136.      * @param directory
  137.      *            the directory to init to
  138.      * @return this instance
  139.      * @throws java.lang.IllegalStateException
  140.      *             if the combination of directory, gitDir and bare is illegal.
  141.      *             E.g. if for a non-bare repository directory and gitDir point
  142.      *             to the same directory of if for a bare repository both
  143.      *             directory and gitDir are specified
  144.      */
  145.     public InitCommand setDirectory(File directory)
  146.             throws IllegalStateException {
  147.         validateDirs(directory, gitDir, bare);
  148.         this.directory = directory;
  149.         return this;
  150.     }

  152.     /**
  153.      * Set the repository meta directory (.git)
  154.      *
  155.      * @param gitDir
  156.      *            the repository meta directory
  157.      * @return this instance
  158.      * @throws java.lang.IllegalStateException
  159.      *             if the combination of directory, gitDir and bare is illegal.
  160.      *             E.g. if for a non-bare repository directory and gitDir point
  161.      *             to the same directory of if for a bare repository both
  162.      *             directory and gitDir are specified
  163.      * @since 3.6
  164.      */
  165.     public InitCommand setGitDir(File gitDir)
  166.             throws IllegalStateException {
  167.         validateDirs(directory, gitDir, bare);
  168.         this.gitDir = gitDir;
  169.         return this;
  170.     }

  172.     private static void validateDirs(File directory, File gitDir, boolean bare)
  173.             throws IllegalStateException {
  174.         if (directory != null) {
  175.             if (bare) {
  176.                 if (gitDir != null && !gitDir.equals(directory))
  177.                     throw new IllegalStateException(MessageFormat.format(
  178.                             JGitText.get().initFailedBareRepoDifferentDirs,
  179.                             gitDir, directory));
  180.             } else {
  181.                 if (gitDir != null && gitDir.equals(directory))
  182.                     throw new IllegalStateException(MessageFormat.format(
  183.                             JGitText.get().initFailedNonBareRepoSameDirs,
  184.                             gitDir, directory));
  185.             }
  186.         }
  187.     }

  189.     /**
  190.      * Set whether the repository is bare or not
  191.      *
  192.      * @param bare
  193.      *            whether the repository is bare or not
  194.      * @throws java.lang.IllegalStateException
  195.      *             if the combination of directory, gitDir and bare is illegal.
  196.      *             E.g. if for a non-bare repository directory and gitDir point
  197.      *             to the same directory of if for a bare repository both
  198.      *             directory and gitDir are specified
  199.      * @return this instance
  200.      */
  201.     public InitCommand setBare(boolean bare) {
  202.         validateDirs(directory, gitDir, bare);
  203.         this.bare = bare;
  204.         return this;
  205.     }

  207.     /**
  208.      * Set the file system abstraction to be used for repositories created by
  209.      * this command.
  210.      *
  211.      * @param fs
  212.      *            the abstraction.
  213.      * @return {@code this} (for chaining calls).
  214.      * @since 4.10
  215.      */
  216.     public InitCommand setFs(FS fs) {
  217.         this.fs = fs;
  218.         return this;
  219.     }
  220. }
Created with JaCoCo 0.8.4.201905082037