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comparison src/org/tmatesoft/hg/repo/HgRepository.java @ 539:9edfd5a223b8

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Commit: handle empty repository case
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 13 Feb 2013 18:44:58 +0100
parents 2f9ed6bcefa2
children e4ee4bf4c7d0
comparison
equal deleted inserted replaced
538:dd4f6311af52 539:9edfd5a223b8
182 } 182 }
183 183
184 public HgChangelog getChangelog() { 184 public HgChangelog getChangelog() {
185 if (changelog == null) { 185 if (changelog == null) {
186 File chlogFile = impl.getFileFromStoreDir("00changelog.i"); 186 File chlogFile = impl.getFileFromStoreDir("00changelog.i");
187 if (!chlogFile.exists()) {
188 // fake its existence
189 chlogFile = fakeNonExistentFile(chlogFile);
190 }
191 RevlogStream content = new RevlogStream(impl.getDataAccess(), chlogFile); 187 RevlogStream content = new RevlogStream(impl.getDataAccess(), chlogFile);
192 changelog = new HgChangelog(this, content); 188 changelog = new HgChangelog(this, content);
193 } 189 }
194 return changelog; 190 return changelog;
195 } 191 }
196 192
197 public HgManifest getManifest() { 193 public HgManifest getManifest() {
198 if (manifest == null) { 194 if (manifest == null) {
199 File manifestFile = impl.getFileFromStoreDir("00manifest.i"); 195 File manifestFile = impl.getFileFromStoreDir("00manifest.i");
200 if (!manifestFile.exists()) {
201 manifestFile = fakeNonExistentFile(manifestFile);
202 }
203 RevlogStream content = new RevlogStream(impl.getDataAccess(), manifestFile); 196 RevlogStream content = new RevlogStream(impl.getDataAccess(), manifestFile);
204 manifest = new HgManifest(this, content, impl.buildFileNameEncodingHelper()); 197 manifest = new HgManifest(this, content, impl.buildFileNameEncodingHelper());
205 } 198 }
206 return manifest; 199 return manifest;
207 } 200 }
510 return s; 503 return s;
511 } 504 }
512 return null; 505 return null;
513 } 506 }
514 507
515 private File fakeNonExistentFile(File expected) throws HgInvalidFileException { 508 /*package-local*/ RevlogStream createStoreFile(Path path) throws HgInvalidControlFileException {
509 File f = impl.getFileFromDataDir(path);
516 try { 510 try {
517 File fake = File.createTempFile(expected.getName(), null); 511 if (!f.exists()) {
518 fake.deleteOnExit(); 512 f.getParentFile().mkdirs();
519 return fake; 513 f.createNewFile();
514 }
515 RevlogStream s = new RevlogStream(impl.getDataAccess(), f);
516 if (impl.shallCacheRevlogs()) {
517 streamsCache.put(path, new SoftReference<RevlogStream>(s));
518 }
519 return s;
520 } catch (IOException ex) { 520 } catch (IOException ex) {
521 getSessionContext().getLog().dump(getClass(), Info, ex, null); 521 throw new HgInvalidControlFileException("Can't create a file in the storage", ex, f);
522 throw new HgInvalidFileException(String.format("Failed to fake existence of file %s", expected), ex);
523 } 522 }
524 } 523 }
525 524
526 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) { 525 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) {
527 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo)); 526 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo));