From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Koeberle Subject: [JGIT PATCH v3 22/23] Added findWorkTree method to Repository class. Date: Fri, 23 May 2008 22:34:31 +0200 Message-ID: <1211574872-23676-23-git-send-email-florianskarten@web.de> References: <1211574872-23676-1-git-send-email-florianskarten@web.de> Cc: Florian Koeberle To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri May 23 22:36:39 2008 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1Jze05-0006CA-Rk for gcvg-git-2@gmane.org; Fri, 23 May 2008 22:36:30 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754528AbYEWUfR (ORCPT ); Fri, 23 May 2008 16:35:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759167AbYEWUfO (ORCPT ); Fri, 23 May 2008 16:35:14 -0400 Received: from fmmailgate03.web.de ([217.72.192.234]:45516 "EHLO fmmailgate03.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758296AbYEWUep (ORCPT ); Fri, 23 May 2008 16:34:45 -0400 Received: from smtp06.web.de (fmsmtp06.dlan.cinetic.de [172.20.5.172]) by fmmailgate03.web.de (Postfix) with ESMTP id 70801DC4A263 for ; Fri, 23 May 2008 22:34:44 +0200 (CEST) Received: from [84.150.81.80] (helo=localhost.localdomain) by smtp06.web.de with asmtp (WEB.DE 4.109 #226) id 1JzdyN-0005iq-01; Fri, 23 May 2008 22:34:44 +0200 X-Mailer: git-send-email 1.5.5.1 In-Reply-To: <1211574872-23676-1-git-send-email-florianskarten@web.de> X-Sender: florianskarten@web.de X-Provags-ID: V01U2FsdGVkX1+9FLd+3AIzRYtw370LgawbioeAH4uealkbbBN7 +FwJM4JI+BFf3RlTWy2hNURq/xr9x1180sOhs3hcpzke5Tdsnc H4p4ivYDC+JapmMm8Ilw== Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Signed-off-by: Florian Koeberle --- .../src/org/spearce/jgit/lib/Repository.java | 80 ++++++++++++++++++++ 1 files changed, 80 insertions(+), 0 deletions(-) diff --git a/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java b/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java index 06e686f..71e0e04 100644 --- a/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java +++ b/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java @@ -16,6 +16,11 @@ */ package org.spearce.jgit.lib; +import static org.spearce.jgit.lib.Constants.HEAD; +import static org.spearce.jgit.lib.Constants.OBJECTS_DIRECTORY_NAME; +import static org.spearce.jgit.lib.Constants.REFS_DIRECTORY_NAME; +import static org.spearce.jgit.lib.Constants.REPOSITORY_DIRECTORY_NAME; + import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; @@ -29,6 +34,7 @@ import java.util.Map; import java.util.Set; import org.spearce.jgit.errors.IncorrectObjectTypeException; +import org.spearce.jgit.errors.NoGitRepositoryFoundException; import org.spearce.jgit.errors.ObjectWritingException; import org.spearce.jgit.errors.RevisionSyntaxException; import org.spearce.jgit.stgit.StGitPatch; @@ -1253,4 +1259,78 @@ public class Repository { } } + /** + * Find the git repository for the current working directory. + * + * @return a {@link Repository}. + * @throws NoGitRepositoryFoundException + * if no git repository could be found for the current + * directory. + * @throws IOException + * if not able to determine the absolute path of the current + * working directory. + */ + public static WorkTree findWorkTree() throws NoGitRepositoryFoundException, + IOException { + return findWorkTree(new File(".")); + } + + /** + * Checks if a path is a valid git repository. Works similar like the method + * is_git_directory from the original setup.c file. + * + * @param directory + * the path which should be checked. + * @return true if the path is a valid git repository. + */ + private static boolean isRepository(File directory) { + if (!directory.isDirectory()) { + return false; + } + + final File objectDirectory = new File(directory, OBJECTS_DIRECTORY_NAME); + if (!objectDirectory.isDirectory()) { + return false; + } + + final File refsDirectory = new File(directory, REFS_DIRECTORY_NAME); + if (!refsDirectory.isDirectory()) { + return false; + } + + final File head = new File(directory, HEAD); + if (!hasValidateHeadRef(head)) { + return false; + } + + return true; + } + + /** + * Checks for example if a path is a valid HEAD file. + * + * @param path + * is the path of the HEAD file. + * @return true if it has a valid head reference. + */ + private static final boolean hasValidateHeadRef(File path) { + return true; // TODO implement this method + } + + private static WorkTree findWorkTree(final File directory) + throws IOException, NoGitRepositoryFoundException { + File currentDirectory = directory.getAbsoluteFile(); + while (currentDirectory != null) { + final File commonGitDirectory = new File(directory, + REPOSITORY_DIRECTORY_NAME); + if (isRepository(commonGitDirectory)) + return new WorkTree(currentDirectory, new Repository( + commonGitDirectory)); + if (isRepository(currentDirectory)) + return new WorkTree(null, new Repository(currentDirectory)); + currentDirectory = currentDirectory.getParentFile(); + } + throw new NoGitRepositoryFoundException(directory); + } + } -- 1.5.4.3