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comparison src/org/tmatesoft/hg/core/HgAddRemoveCommand.java @ 617:65c01508f002

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Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 15 May 2013 20:10:09 +0200
parents f41dd9a3b8af
children b4242b7e7dfe
comparison
equal deleted inserted replaced
616:5e0313485eef 617:65c01508f002
16 */ 16 */
17 package org.tmatesoft.hg.core; 17 package org.tmatesoft.hg.core;
18 18
19 import java.util.LinkedHashSet; 19 import java.util.LinkedHashSet;
20 20
21 import org.tmatesoft.hg.internal.COWTransaction;
21 import org.tmatesoft.hg.internal.DirstateBuilder; 22 import org.tmatesoft.hg.internal.DirstateBuilder;
22 import org.tmatesoft.hg.internal.DirstateReader; 23 import org.tmatesoft.hg.internal.DirstateReader;
23 import org.tmatesoft.hg.internal.Internals; 24 import org.tmatesoft.hg.internal.Internals;
25 import org.tmatesoft.hg.internal.Transaction;
24 import org.tmatesoft.hg.repo.HgManifest.Flags; 26 import org.tmatesoft.hg.repo.HgManifest.Flags;
25 import org.tmatesoft.hg.repo.HgRepository; 27 import org.tmatesoft.hg.repo.HgRepository;
28 import org.tmatesoft.hg.repo.HgRepositoryLock;
26 import org.tmatesoft.hg.repo.HgRuntimeException; 29 import org.tmatesoft.hg.repo.HgRuntimeException;
27 import org.tmatesoft.hg.util.CancelSupport; 30 import org.tmatesoft.hg.util.CancelSupport;
28 import org.tmatesoft.hg.util.CancelledException; 31 import org.tmatesoft.hg.util.CancelledException;
29 import org.tmatesoft.hg.util.Path; 32 import org.tmatesoft.hg.util.Path;
30 import org.tmatesoft.hg.util.ProgressSupport; 33 import org.tmatesoft.hg.util.ProgressSupport;
92 95
93 /** 96 /**
94 * Perform scheduled addition/removal 97 * Perform scheduled addition/removal
95 * 98 *
96 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state 99 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
100 * @throws HgRepositoryLockException if failed to lock the repo for modifications
97 * @throws CancelledException if execution of the command was cancelled 101 * @throws CancelledException if execution of the command was cancelled
98 */ 102 */
99 public void execute() throws HgException, CancelledException { 103 public void execute() throws HgException, HgRepositoryLockException, CancelledException {
104 final HgRepositoryLock wdLock = repo.getWorkingDirLock();
105 wdLock.acquire();
100 try { 106 try {
101 final ProgressSupport progress = getProgressSupport(null); 107 final ProgressSupport progress = getProgressSupport(null);
102 final CancelSupport cancellation = getCancelSupport(null, true); 108 final CancelSupport cancellation = getCancelSupport(null, true);
103 cancellation.checkCancelled(); 109 cancellation.checkCancelled();
104 progress.start(2 + toAdd.size() + toRemove.size()); 110 progress.start(2 + toAdd.size() + toRemove.size());
115 for (Path p : toRemove) { 121 for (Path p : toRemove) {
116 dirstateBuilder.recordRemoved(p); 122 dirstateBuilder.recordRemoved(p);
117 progress.worked(1); 123 progress.worked(1);
118 cancellation.checkCancelled(); 124 cancellation.checkCancelled();
119 } 125 }
120 dirstateBuilder.serialize(); 126 Transaction.Factory trFactory = new COWTransaction.Factory();
127 Transaction tr = trFactory.create(repo);
128 try {
129 dirstateBuilder.serialize(tr);
130 tr.commit();
131 } catch (RuntimeException ex) {
132 tr.rollback();
133 throw ex;
134 } catch (HgException ex) {
135 tr.rollback();
136 throw ex;
137 }
121 progress.worked(1); 138 progress.worked(1);
122 progress.done(); 139 progress.done();
123 } catch (HgRuntimeException ex) { 140 } catch (HgRuntimeException ex) {
124 throw new HgLibraryFailureException(ex); 141 throw new HgLibraryFailureException(ex);
142 } finally {
143 wdLock.release();
125 } 144 }
126 } 145 }
127 } 146 }