Mercurial > hg4j
view src/org/tmatesoft/hg/internal/SubrepoManager.java @ 515:e6c8b9b654b2
Provide access to HgDataFile being iterated into HgChangesetTreeHandler.TreeElement to give context for renamed files
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Mon, 17 Dec 2012 20:51:12 +0100 |
parents | 6865eb742883 |
children | e4ee4bf4c7d0 |
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/* * Copyright (c) 2011-2012 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.internal; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import org.tmatesoft.hg.core.Nodeid; import org.tmatesoft.hg.repo.HgInternals; import org.tmatesoft.hg.repo.HgInvalidControlFileException; import org.tmatesoft.hg.repo.HgRepository; import org.tmatesoft.hg.repo.HgSubrepoLocation; import org.tmatesoft.hg.util.Path; /** * * @see http://mercurial.selenic.com/wiki/SubrepoWork * @see http://mercurial.selenic.com/wiki/Subrepository * @author Artem Tikhomirov * @author TMate Software Ltd. */ public class SubrepoManager /* XXX RepoChangeNotifier, RepoChangeListener */{ private final HgRepository repo; private List<HgSubrepoLocation> subRepos; public SubrepoManager(HgRepository hgRepo) { assert hgRepo != null; repo = hgRepo; } private List<HgSubrepoLocation> readActualState() throws HgInvalidControlFileException { File hgsubFile = new File(repo.getWorkingDir(), ".hgsub"); if (!hgsubFile.canRead()) { return Collections.emptyList(); } Map<String, String> state; // path -> revision File hgstateFile = null; try { hgstateFile = new File(repo.getWorkingDir(), ".hgsubstate"); if (hgstateFile.canRead()) { state = readState(new BufferedReader(new FileReader(hgstateFile))); } else { state = Collections.emptyMap(); } } catch (IOException ex) { throw new HgInvalidControlFileException("Subrepo state read failed", ex, hgstateFile); } try { BufferedReader br = new BufferedReader(new FileReader(hgsubFile)); return readConfig(br, state); } catch (IOException ex) { throw new HgInvalidControlFileException("Subrepo state read failed", ex, hgsubFile); } } private List<HgSubrepoLocation> readConfig(BufferedReader br, Map<String, String> substate) throws IOException { try { String line; LinkedList<HgSubrepoLocation> res = new LinkedList<HgSubrepoLocation>(); HgInternals hgRepoInternal = new HgInternals(repo); while ((line = br.readLine()) != null) { int sep = line.indexOf('='); if (sep == -1) { continue; } // since both key and value are referenced from HgSubrepoLocation, doesn't make sense // to have separate String instances (new String(line.substring())) String key = line.substring(0, sep).trim(); String value = line.substring(sep + 1).trim(); if (key.length() == 0 || value.length() == 0) { // XXX log bad line? continue; } HgSubrepoLocation.Kind kind = HgSubrepoLocation.Kind.Hg; int kindEnd = value.indexOf(']', 1); if (value.charAt(0) == '[' && kindEnd != -1) { String kindStr = value.substring(1, kindEnd); value = value.substring(kindEnd + 1); if ("svn".equals(kindStr)) { kind = HgSubrepoLocation.Kind.SVN; } else if ("git".equals(kindStr)) { kind = HgSubrepoLocation.Kind.Git; } } // TODO respect paths mappings in config file // // apparently, key value can't end with '/', `hg commit` fails if it does: // abort: path ends in directory separator: fourth/ Path p = Path.create(key.charAt(key.length()-1) == '/' ? key : key + '/'); String revValue = substate.get(key); HgSubrepoLocation loc = hgRepoInternal.newSubrepo(p, value, kind, revValue == null ? null : Nodeid.fromAscii(revValue)); res.add(loc); } return Arrays.asList(res.toArray(new HgSubrepoLocation[res.size()])); } finally { br.close(); } } private Map<String, String> readState(BufferedReader br) throws IOException { // TODO reuse for other files with <revision><space><value> format, like .hgtags HashMap<String, String> rv = new HashMap<String, String>(); try { String line; while ((line = br.readLine()) != null) { int sep = line.trim().indexOf(' '); if (sep != -1) { rv.put(line.substring(sep+1).trim(), line.substring(0, sep).trim()); } } } finally { br.close(); } return rv; } /*public to allow access from HgRepository, otherwise package-local*/ public void read() throws HgInvalidControlFileException { subRepos = readActualState(); } public List<HgSubrepoLocation> all(/*int revision, or TIP|WC*/) { assert subRepos != null; return subRepos; } }