Mercurial > hg4j

comparison src/org/tmatesoft/hg/repo/HgLookup.java @ 578:f97e81d13190

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Throw exception if repository encountered is too old for Hg4J
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 17 Apr 2013 16:02:52 +0200
parents 2f9ed6bcefa2
children 7c0d2ce340b8
comparison
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577:5d7399ade999 578:f97e81d13190
1 /* 1 /*
2 * Copyright (c) 2010-2012 TMate Software Ltd 2 * Copyright (c) 2010-2013 TMate Software Ltd
3 * 3 *
4 * This program is free software; you can redistribute it and/or modify 4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by 5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License. 6 * the Free Software Foundation; version 2 of the License.
7 * 7 *
27 import org.tmatesoft.hg.core.SessionContext; 27 import org.tmatesoft.hg.core.SessionContext;
28 import org.tmatesoft.hg.internal.BasicSessionContext; 28 import org.tmatesoft.hg.internal.BasicSessionContext;
29 import org.tmatesoft.hg.internal.ConfigFile; 29 import org.tmatesoft.hg.internal.ConfigFile;
30 import org.tmatesoft.hg.internal.DataAccessProvider; 30 import org.tmatesoft.hg.internal.DataAccessProvider;
31 import org.tmatesoft.hg.internal.Internals; 31 import org.tmatesoft.hg.internal.Internals;
32 import org.tmatesoft.hg.internal.RequiresFile;
32 import org.tmatesoft.hg.repo.HgRepoConfig.PathsSection; 33 import org.tmatesoft.hg.repo.HgRepoConfig.PathsSection;
33 34
34 /** 35 /**
35 * Utility methods to find Mercurial repository at a given location 36 * Utility methods to find Mercurial repository at a given location
36 * 37 *
55 56
56 public HgRepository detect(String location) throws HgRepositoryNotFoundException { 57 public HgRepository detect(String location) throws HgRepositoryNotFoundException {
57 return detect(new File(location)); 58 return detect(new File(location));
58 } 59 }
59 60
60 // look up in specified location and above 61 /**
62 * Look up repository in specified location and above
63 *
64 * @param location where to look for .hg directory, never <code>null</code>
65 * @return repository object, never <code>null</code>
66 * @throws HgRepositoryNotFoundException if no repository found, or repository version is not supported
67 */
61 public HgRepository detect(File location) throws HgRepositoryNotFoundException { 68 public HgRepository detect(File location) throws HgRepositoryNotFoundException {
62 File dir = location.getAbsoluteFile(); 69 File dir = location.getAbsoluteFile();
63 File repository; 70 File repository;
64 do { 71 do {
65 repository = new File(dir, ".hg"); 72 repository = new File(dir, ".hg");
72 } while(dir != null); 79 } while(dir != null);
73 if (repository == null) { 80 if (repository == null) {
74 throw new HgRepositoryNotFoundException(String.format("Can't locate .hg/ directory of Mercurial repository in %s nor in parent dirs", location)).setLocation(location.getPath()); 81 throw new HgRepositoryNotFoundException(String.format("Can't locate .hg/ directory of Mercurial repository in %s nor in parent dirs", location)).setLocation(location.getPath());
75 } 82 }
76 String repoPath = repository.getParentFile().getAbsolutePath(); 83 String repoPath = repository.getParentFile().getAbsolutePath();
77 return new HgRepository(getContext(), repoPath, repository); 84 HgRepository rv = new HgRepository(getContext(), repoPath, repository);
85 int requiresFlags = rv.getImplHelper().getRequiresFlags();
86 if ((requiresFlags & RequiresFile.REVLOGV1) == 0) {
87 throw new HgRepositoryNotFoundException(String.format("%s: repository version is not supported (Mercurial <0.9?)", repoPath)).setLocation(location.getPath());
88 }
89 return rv;
78 } 90 }
79 91
80 public HgBundle loadBundle(File location) throws HgRepositoryNotFoundException { 92 public HgBundle loadBundle(File location) throws HgRepositoryNotFoundException {
81 if (location == null || !location.canRead()) { 93 if (location == null || !location.canRead()) {
82 throw new HgRepositoryNotFoundException(String.format("Can't read file %s", location)).setLocation(String.valueOf(location)); 94 throw new HgRepositoryNotFoundException(String.format("Can't read file %s", location)).setLocation(String.valueOf(location));