Mercurial > hg4j
view src/org/tmatesoft/hg/repo/HgLookup.java @ 592:b12cc3d64a35
Command-line sample for commit command
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Wed, 01 May 2013 14:03:10 +0200 (2013-05-01) |
parents | f97e81d13190 |
children | 7c0d2ce340b8 |
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/* * Copyright (c) 2010-2013 TMate Software Ltd * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program 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 General Public License for more details. * * For information on how to redistribute this software under * the terms of a license other than GNU General Public License * contact TMate Software at support@hg4j.com */ package org.tmatesoft.hg.repo; import static org.tmatesoft.hg.util.LogFacility.Severity.Warn; import java.io.File; import java.net.MalformedURLException; import java.net.URL; import org.tmatesoft.hg.core.HgBadArgumentException; import org.tmatesoft.hg.core.HgRepositoryNotFoundException; import org.tmatesoft.hg.core.SessionContext; import org.tmatesoft.hg.internal.BasicSessionContext; import org.tmatesoft.hg.internal.ConfigFile; import org.tmatesoft.hg.internal.DataAccessProvider; import org.tmatesoft.hg.internal.Internals; import org.tmatesoft.hg.internal.RequiresFile; import org.tmatesoft.hg.repo.HgRepoConfig.PathsSection; /** * Utility methods to find Mercurial repository at a given location * * @author Artem Tikhomirov * @author TMate Software Ltd. */ public class HgLookup { private ConfigFile globalCfg; private SessionContext sessionContext; public HgLookup() { } public HgLookup(SessionContext ctx) { sessionContext = ctx; } public HgRepository detectFromWorkingDir() throws HgRepositoryNotFoundException { return detect(System.getProperty("user.dir")); } public HgRepository detect(String location) throws HgRepositoryNotFoundException { return detect(new File(location)); } /** * Look up repository in specified location and above * * @param location where to look for .hg directory, never <code>null</code> * @return repository object, never <code>null</code> * @throws HgRepositoryNotFoundException if no repository found, or repository version is not supported */ public HgRepository detect(File location) throws HgRepositoryNotFoundException { File dir = location.getAbsoluteFile(); File repository; do { repository = new File(dir, ".hg"); if (repository.exists() && repository.isDirectory()) { break; } repository = null; dir = dir.getParentFile(); } while(dir != null); if (repository == null) { throw new HgRepositoryNotFoundException(String.format("Can't locate .hg/ directory of Mercurial repository in %s nor in parent dirs", location)).setLocation(location.getPath()); } String repoPath = repository.getParentFile().getAbsolutePath(); HgRepository rv = new HgRepository(getContext(), repoPath, repository); int requiresFlags = rv.getImplHelper().getRequiresFlags(); if ((requiresFlags & RequiresFile.REVLOGV1) == 0) { throw new HgRepositoryNotFoundException(String.format("%s: repository version is not supported (Mercurial <0.9?)", repoPath)).setLocation(location.getPath()); } return rv; } public HgBundle loadBundle(File location) throws HgRepositoryNotFoundException { if (location == null || !location.canRead()) { throw new HgRepositoryNotFoundException(String.format("Can't read file %s", location)).setLocation(String.valueOf(location)); } return new HgBundle(getContext(), new DataAccessProvider(getContext()), location).link(); } /** * Try to instantiate remote server using an immediate url or an url from configuration files * * @param key either URL or a key from configuration file that points to remote server; if <code>null</code> or empty string, default remote location of the supplied repository (if any) is looked up * @param hgRepo optional local repository to get default or otherwise configured remote location * @return an instance featuring access to remote repository, check {@link HgRemoteRepository#isInvalid()} before actually using it * @throws HgBadArgumentException if anything is wrong with the remote server's URL */ public HgRemoteRepository detectRemote(String key, HgRepository hgRepo) throws HgBadArgumentException { URL url; Exception toReport; try { url = new URL(key); toReport = null; } catch (MalformedURLException ex) { url = null; toReport = ex; } if (url == null) { String server = null; if (hgRepo != null && !hgRepo.isInvalid()) { PathsSection ps = hgRepo.getConfiguration().getPaths(); server = key == null || key.trim().isEmpty() ? ps.getDefault() : ps.getString(key, null); } else if (key == null || key.trim().length() == 0) { throw new HgBadArgumentException("Can't look up empty key in a global configuration", null); } if (server == null) { server = getGlobalConfig().getSection("paths").get(key); } if (server == null) { throw new HgBadArgumentException(String.format("Can't find server %s specification in the config", key), toReport); } try { url = new URL(server); } catch (MalformedURLException ex) { throw new HgBadArgumentException(String.format("Found %s server spec in the config, but failed to initialize with it", key), ex); } } return new HgRemoteRepository(getContext(), url); } public HgRemoteRepository detect(URL url) throws HgBadArgumentException { if (url == null) { throw new IllegalArgumentException(); } if (Boolean.FALSE.booleanValue()) { throw Internals.notImplemented(); } return new HgRemoteRepository(getContext(), url); } private ConfigFile getGlobalConfig() { if (globalCfg == null) { globalCfg = new ConfigFile(getContext()); try { globalCfg.addLocation(new File(System.getProperty("user.home"), ".hgrc")); } catch (HgInvalidFileException ex) { // XXX perhaps, makes sense to let caller/client know that we've failed to read global config? getContext().getLog().dump(getClass(), Warn, ex, null); } } return globalCfg; } private SessionContext getContext() { if (sessionContext == null) { sessionContext = new BasicSessionContext(null); } return sessionContext; } }