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authorJens Baumgart2010-07-26 04:18:47 (EDT)
committer Shawn O. Pearce2010-07-27 13:00:47 (EDT)
commitdb82b8d7eb646a2d31f1b4e52ab4a623743192e9 (patch)
treed484fb29139ae3673dfad6930aaefb467ec41977
parenta00377a7e23dbde315598ee20f61c45d031e159a (diff)
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Fix concurrent read / write issue in LockFile on Windowsrefs/changes/72/1172/5
LockFile.commit fails if another thread concurrently reads the base file. The problem is fixed by retrying the rename operation if it fails. Change-Id: I6bb76ea7f2e6e90e3ddc45f9dd4d69bd1b6fa1eb Bug: 308506 Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>
-rw-r--r--org.eclipse.jgit.iplog/src/org/eclipse/jgit/iplog/IpLogMeta.java12
-rw-r--r--org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java3
-rw-r--r--org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java2
-rw-r--r--org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java2
-rw-r--r--org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java4
-rw-r--r--org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Iplog.java2
-rw-r--r--org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Ipzilla.java2
-rw-r--r--org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/AbstractTreeIteratorHandler.java2
-rw-r--r--org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheBasicTest.java4
-rw-r--r--org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java16
-rw-r--r--org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefUpdateTest.java9
-rw-r--r--org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RepositorySetupWorkDirTest.java4
-rw-r--r--org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java2
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java30
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/lib/BaseRepositoryBuilder.java2
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java4
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java17
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileRepository.java4
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/LockFile.java30
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/PackLock.java9
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectory.java3
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectoryUpdate.java2
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java3
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java2
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java2
25 files changed, 122 insertions, 50 deletions
diff --git a/org.eclipse.jgit.iplog/src/org/eclipse/jgit/iplog/IpLogMeta.java b/org.eclipse.jgit.iplog/src/org/eclipse/jgit/iplog/IpLogMeta.java
index 2799a4a..372469d 100644
--- a/org.eclipse.jgit.iplog/src/org/eclipse/jgit/iplog/IpLogMeta.java
+++ b/org.eclipse.jgit.iplog/src/org/eclipse/jgit/iplog/IpLogMeta.java
@@ -61,6 +61,7 @@ import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.storage.file.LockFile;
+import org.eclipse.jgit.util.FS;
/**
* Manages the {@code .eclipse_iplog} file in a project.
@@ -167,6 +168,9 @@ public class IpLogMeta {
*
* @param file
* local file to update with current CQ records.
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
* @param base
* base https:// URL of the IPzilla server.
* @param username
@@ -181,16 +185,16 @@ public class IpLogMeta {
* the local file cannot be read, as it is not a valid
* configuration file format.
*/
- public void syncCQs(File file, URL base, String username, String password)
- throws IOException, ConfigInvalidException {
+ public void syncCQs(File file, FS fs, URL base, String username,
+ String password) throws IOException, ConfigInvalidException {
if (!file.getParentFile().exists())
file.getParentFile().mkdirs();
- LockFile lf = new LockFile(file);
+ LockFile lf = new LockFile(file, fs);
if (!lf.lock())
throw new IOException(MessageFormat.format(IpLogText.get().cannotLock, file));
try {
- FileBasedConfig cfg = new FileBasedConfig(file);
+ FileBasedConfig cfg = new FileBasedConfig(file, fs);
cfg.load();
loadFrom(cfg);
diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java
index 2b82d82..47956e5 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java
@@ -69,6 +69,7 @@ import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.storage.file.FileRepository;
import org.eclipse.jgit.storage.file.WindowCache;
import org.eclipse.jgit.storage.file.WindowCacheConfig;
+import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.IO;
import org.eclipse.jgit.util.SystemReader;
@@ -128,7 +129,7 @@ public abstract class LocalDiskRepositoryTestCase extends TestCase {
mockSystemReader = new MockSystemReader();
mockSystemReader.userGitConfig = new FileBasedConfig(new File(trash,
- "usergitconfig"));
+ "usergitconfig"), FS.DETECTED);
ceilTestDirectories(getCeilings());
SystemReader.setInstance(mockSystemReader);
diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
index eb08417..5c2e77f 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
@@ -67,7 +67,7 @@ public class MockSystemReader extends SystemReader {
init(Constants.GIT_AUTHOR_EMAIL_KEY);
init(Constants.GIT_COMMITTER_NAME_KEY);
init(Constants.GIT_COMMITTER_EMAIL_KEY);
- userGitConfig = new FileBasedConfig(null) {
+ userGitConfig = new FileBasedConfig(null, null) {
@Override
public void load() throws IOException, ConfigInvalidException {
// Do nothing
diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
index 3c58271..afe1c0b 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
@@ -654,7 +654,7 @@ public class TestRepository<R extends Repository> {
private void writeFile(final File p, final byte[] bin) throws IOException,
ObjectWritingException {
- final LockFile lck = new LockFile(p);
+ final LockFile lck = new LockFile(p, db.getFS());
if (!lck.lock())
throw new ObjectWritingException("Can't write " + p);
try {
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
index 5b75c1b..b8e2a8f 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
@@ -227,7 +227,7 @@ class RebuildCommitGraph extends TextBuiltin {
final ObjectId id = db.resolve(Constants.HEAD);
if (!ObjectId.isId(head) && id != null) {
final LockFile lf;
- lf = new LockFile(new File(db.getDirectory(), Constants.HEAD));
+ lf = new LockFile(new File(db.getDirectory(), Constants.HEAD), db.getFS());
if (!lf.lock())
throw new IOException(MessageFormat.format(CLIText.get().cannotLock, Constants.HEAD));
lf.write(id);
@@ -254,7 +254,7 @@ class RebuildCommitGraph extends TextBuiltin {
protected void writeFile(final String name, final byte[] content)
throws IOException {
final File file = new File(db.getDirectory(), name);
- final LockFile lck = new LockFile(file);
+ final LockFile lck = new LockFile(file, db.getFS());
if (!lck.lock())
throw new ObjectWritingException(MessageFormat.format(CLIText.get().cantWrite, file));
try {
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Iplog.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Iplog.java
index a99e0ab..84859a8 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Iplog.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Iplog.java
@@ -98,7 +98,7 @@ class Iplog extends TextBuiltin {
if (output != null) {
if (!output.getParentFile().exists())
output.getParentFile().mkdirs();
- LockFile lf = new LockFile(output);
+ LockFile lf = new LockFile(output, db.getFS());
if (!lf.lock())
throw die(MessageFormat.format(CLIText.get().cannotLock, output));
try {
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Ipzilla.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Ipzilla.java
index b563f07..6653209 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Ipzilla.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/eclipse/Ipzilla.java
@@ -94,6 +94,6 @@ class Ipzilla extends TextBuiltin {
output = new File(db.getWorkTree(), IpLogMeta.IPLOG_CONFIG_FILE);
IpLogMeta meta = new IpLogMeta();
- meta.syncCQs(output, ipzilla, username, password);
+ meta.syncCQs(output, db.getFS(), ipzilla, username, password);
}
}
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/AbstractTreeIteratorHandler.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/AbstractTreeIteratorHandler.java
index 0198160..7126982 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/AbstractTreeIteratorHandler.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/AbstractTreeIteratorHandler.java
@@ -103,7 +103,7 @@ public class AbstractTreeIteratorHandler extends
if (new File(name).isFile()) {
final DirCache dirc;
try {
- dirc = DirCache.read(new File(name));
+ dirc = DirCache.read(new File(name), FS.DETECTED);
} catch (IOException e) {
throw new CmdLineException(MessageFormat.format(CLIText.get().notAnIndexFile, name), e);
}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheBasicTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheBasicTest.java
index c3ac952..b6e4e42 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheBasicTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheBasicTest.java
@@ -63,7 +63,7 @@ public class DirCacheBasicTest extends RepositoryTestCase {
final File idx = new File(db.getDirectory(), "tmp_index");
assertFalse(idx.exists());
- final DirCache dc = DirCache.read(idx);
+ final DirCache dc = DirCache.read(idx, db.getFS());
assertNotNull(dc);
assertEquals(0, dc.getEntryCount());
}
@@ -91,7 +91,7 @@ public class DirCacheBasicTest extends RepositoryTestCase {
assertFalse(idx.exists());
assertFalse(lck.exists());
- final DirCache dc = DirCache.lock(idx);
+ final DirCache dc = DirCache.lock(idx, db.getFS());
assertNotNull(dc);
assertFalse(idx.exists());
assertTrue(lck.exists());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java
index fa5fea8..f37d040 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java
@@ -58,6 +58,7 @@ import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.TreeWalk;
+import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.JGitTestUtil;
public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
@@ -65,7 +66,7 @@ public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
public void testReadIndex_LsFiles() throws Exception {
final Map<String, CGitIndexRecord> ls = readLsFiles();
- final DirCache dc = new DirCache(index);
+ final DirCache dc = new DirCache(index, FS.DETECTED);
assertEquals(0, dc.getEntryCount());
dc.read();
assertEquals(ls.size(), dc.getEntryCount());
@@ -79,7 +80,7 @@ public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
public void testTreeWalk_LsFiles() throws Exception {
final Repository db = createBareRepository();
final Map<String, CGitIndexRecord> ls = readLsFiles();
- final DirCache dc = new DirCache(index);
+ final DirCache dc = new DirCache(index, db.getFS());
assertEquals(0, dc.getEntryCount());
dc.read();
assertEquals(ls.size(), dc.getEntryCount());
@@ -102,14 +103,16 @@ public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
}
public void testUnsupportedOptionalExtension() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.ZZZZ"));
+ final DirCache dc = new DirCache(pathOf("gitgit.index.ZZZZ"),
+ FS.DETECTED);
dc.read();
assertEquals(1, dc.getEntryCount());
assertEquals("A", dc.getEntry(0).getPathString());
}
public void testUnsupportedRequiredExtension() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.aaaa"));
+ final DirCache dc = new DirCache(pathOf("gitgit.index.aaaa"),
+ FS.DETECTED);
try {
dc.read();
fail("Cache loaded an unsupported extension");
@@ -120,7 +123,8 @@ public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
}
public void testCorruptChecksumAtFooter() throws Exception {
- final DirCache dc = new DirCache(pathOf("gitgit.index.badchecksum"));
+ final DirCache dc = new DirCache(pathOf("gitgit.index.badchecksum"),
+ FS.DETECTED);
try {
dc.read();
fail("Cache loaded despite corrupt checksum");
@@ -143,7 +147,7 @@ public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
public void testReadIndex_DirCacheTree() throws Exception {
final Map<String, CGitIndexRecord> cList = readLsFiles();
final Map<String, CGitLsTreeRecord> cTree = readLsTree();
- final DirCache dc = new DirCache(index);
+ final DirCache dc = new DirCache(index, FS.DETECTED);
assertEquals(0, dc.getEntryCount());
dc.read();
assertEquals(cList.size(), dc.getEntryCount());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefUpdateTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefUpdateTest.java
index 875c2e9..8717008 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefUpdateTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefUpdateTest.java
@@ -555,13 +555,15 @@ public class RefUpdateTest extends SampleDataRepositoryTestCase {
ObjectId pid = db.resolve("refs/heads/master^");
RefUpdate updateRef = db.updateRef("refs/heads/master");
updateRef.setNewObjectId(pid);
- LockFile lockFile1 = new LockFile(new File(db.getDirectory(),"refs/heads/master"));
+ LockFile lockFile1 = new LockFile(new File(db.getDirectory(),
+ "refs/heads/master"), db.getFS());
try {
assertTrue(lockFile1.lock()); // precondition to test
Result update = updateRef.update();
assertEquals(Result.LOCK_FAILURE, update);
assertEquals(opid, db.resolve("refs/heads/master"));
- LockFile lockFile2 = new LockFile(new File(db.getDirectory(),"refs/heads/master"));
+ LockFile lockFile2 = new LockFile(new File(db.getDirectory(),"refs/heads/master"),
+ db.getFS());
assertFalse(lockFile2.lock()); // was locked, still is
} finally {
lockFile1.unlock();
@@ -699,7 +701,8 @@ public class RefUpdateTest extends SampleDataRepositoryTestCase {
"logs/" + fromName).exists());
// "someone" has branch X locked
- LockFile lockFile = new LockFile(new File(db.getDirectory(), toLock));
+ LockFile lockFile = new LockFile(new File(db.getDirectory(), toLock),
+ db.getFS());
try {
assertTrue(lockFile.lock());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RepositorySetupWorkDirTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RepositorySetupWorkDirTest.java
index 4f6d5b3..d28dd39 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RepositorySetupWorkDirTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RepositorySetupWorkDirTest.java
@@ -53,6 +53,7 @@ import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.util.FS;
/**
* Tests for setting up the working directory when creating a Repository
@@ -191,7 +192,8 @@ public class RepositorySetupWorkDirTest extends LocalDiskRepositoryTestCase {
private FileBasedConfig configFor(File gitDir) throws IOException,
ConfigInvalidException {
- FileBasedConfig cfg = new FileBasedConfig(new File(gitDir, "config"));
+ File configPath = new File(gitDir, "config");
+ FileBasedConfig cfg = new FileBasedConfig(configPath, FS.DETECTED);
cfg.load();
return cfg;
}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java
index 477b0df..ecabedd 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java
@@ -315,7 +315,7 @@ public class T0003_Basic extends SampleDataRepositoryTestCase {
public void test006_ReadUglyConfig() throws IOException,
ConfigInvalidException {
final File cfg = new File(db.getDirectory(), "config");
- final FileBasedConfig c = new FileBasedConfig(cfg);
+ final FileBasedConfig c = new FileBasedConfig(cfg, db.getFS());
final FileWriter pw = new FileWriter(cfg);
final String configStr = " [core];comment\n\tfilemode = yes\n"
+ "[user]\n"
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
index cc10fad..60238c3 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
@@ -67,6 +67,7 @@ import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.storage.file.LockFile;
+import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.IO;
import org.eclipse.jgit.util.MutableInteger;
import org.eclipse.jgit.util.NB;
@@ -129,7 +130,7 @@ public class DirCache {
* memory).
*/
public static DirCache newInCore() {
- return new DirCache(null);
+ return new DirCache(null, null);
}
/**
@@ -141,6 +142,9 @@ public class DirCache {
*
* @param indexLocation
* location of the index file on disk.
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
* @return a cache representing the contents of the specified index file (if
* it exists) or an empty cache if the file does not exist.
* @throws IOException
@@ -149,9 +153,9 @@ public class DirCache {
* the index file is using a format or extension that this
* library does not support.
*/
- public static DirCache read(final File indexLocation)
+ public static DirCache read(final File indexLocation, final FS fs)
throws CorruptObjectException, IOException {
- final DirCache c = new DirCache(indexLocation);
+ final DirCache c = new DirCache(indexLocation, fs);
c.read();
return c;
}
@@ -161,11 +165,14 @@ public class DirCache {
* <p>
* The new index will be locked and then read before it is returned to the
* caller. Read failures are reported as exceptions and therefore prevent
- * the method from returning a partially populated index. On read failure,
+ * the method from returning a partially populated index. On read failure,
* the lock is released.
*
* @param indexLocation
* location of the index file on disk.
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
* @return a cache representing the contents of the specified index file (if
* it exists) or an empty cache if the file does not exist.
* @throws IOException
@@ -175,9 +182,9 @@ public class DirCache {
* the index file is using a format or extension that this
* library does not support.
*/
- public static DirCache lock(final File indexLocation)
+ public static DirCache lock(final File indexLocation, final FS fs)
throws CorruptObjectException, IOException {
- final DirCache c = new DirCache(indexLocation);
+ final DirCache c = new DirCache(indexLocation, fs);
if (!c.lock())
throw new IOException(MessageFormat.format(JGitText.get().cannotLock, indexLocation));
@@ -215,6 +222,9 @@ public class DirCache {
/** Our active lock (if we hold it); null if we don't have it locked. */
private LockFile myLock;
+ /** file system abstraction **/
+ private final FS fs;
+
/**
* Create a new in-core index representation.
* <p>
@@ -223,9 +233,13 @@ public class DirCache {
*
* @param indexLocation
* location of the index file on disk.
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
*/
- public DirCache(final File indexLocation) {
+ public DirCache(final File indexLocation, final FS fs) {
liveFile = indexLocation;
+ this.fs = fs;
clear();
}
@@ -429,7 +443,7 @@ public class DirCache {
public boolean lock() throws IOException {
if (liveFile == null)
throw new IOException(JGitText.get().dirCacheDoesNotHaveABackingFile);
- final LockFile tmp = new LockFile(liveFile);
+ final LockFile tmp = new LockFile(liveFile, fs);
if (tmp.lock()) {
tmp.setNeedStatInformation(true);
myLock = tmp;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/BaseRepositoryBuilder.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/BaseRepositoryBuilder.java
index 92edb03..410c85f 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/BaseRepositoryBuilder.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/BaseRepositoryBuilder.java
@@ -555,7 +555,7 @@ public class BaseRepositoryBuilder<B extends BaseRepositoryBuilder, R extends Re
// repository and not inherited from other files.
//
File path = safeFS().resolve(getGitDir(), "config");
- FileBasedConfig cfg = new FileBasedConfig(path);
+ FileBasedConfig cfg = new FileBasedConfig(path, safeFS());
try {
cfg.load();
} catch (ConfigInvalidException err) {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java
index a39af86..4be1e69 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java
@@ -930,7 +930,7 @@ public abstract class Repository {
*/
public DirCache readDirCache() throws NoWorkTreeException,
CorruptObjectException, IOException {
- return DirCache.read(getIndexFile());
+ return DirCache.read(getIndexFile(), getFS());
}
/**
@@ -954,7 +954,7 @@ public abstract class Repository {
*/
public DirCache lockDirCache() throws NoWorkTreeException,
CorruptObjectException, IOException {
- return DirCache.lock(getIndexFile());
+ return DirCache.lock(getIndexFile(), getFS());
}
static byte[] gitInternalSlash(byte[] bytes) {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java
index 4cbb848..8ffbe80 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java
@@ -59,6 +59,7 @@ import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.StoredConfig;
+import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.IO;
import org.eclipse.jgit.util.RawParseUtils;
@@ -68,15 +69,19 @@ import org.eclipse.jgit.util.RawParseUtils;
public class FileBasedConfig extends StoredConfig {
private final File configFile;
private volatile long lastModified;
+ private final FS fs;
/**
* Create a configuration with no default fallback.
*
* @param cfgLocation
* the location of the configuration file on the file system
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
*/
- public FileBasedConfig(File cfgLocation) {
- this(null, cfgLocation);
+ public FileBasedConfig(File cfgLocation, FS fs) {
+ this(null, cfgLocation, fs);
}
/**
@@ -86,10 +91,14 @@ public class FileBasedConfig extends StoredConfig {
* the base configuration file
* @param cfgLocation
* the location of the configuration file on the file system
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
*/
- public FileBasedConfig(Config base, File cfgLocation) {
+ public FileBasedConfig(Config base, File cfgLocation, FS fs) {
super(base);
configFile = cfgLocation;
+ this.fs = fs;
}
/** @return location of the configuration file on disk */
@@ -138,7 +147,7 @@ public class FileBasedConfig extends StoredConfig {
*/
public void save() throws IOException {
final byte[] out = Constants.encode(toText());
- final LockFile lf = new LockFile(getFile());
+ final LockFile lf = new LockFile(getFile(), fs);
if (!lf.lock())
throw new IOException(MessageFormat.format(JGitText.get().cannotLockFile, getFile()));
try {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileRepository.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileRepository.java
index 15aafbd..69cce71 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileRepository.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileRepository.java
@@ -136,7 +136,9 @@ public class FileRepository extends Repository {
super(options);
userConfig = SystemReader.getInstance().openUserConfig(getFS());
- repoConfig = new FileBasedConfig(userConfig, getFS().resolve(getDirectory(), "config"));
+ repoConfig = new FileBasedConfig(userConfig, //
+ getFS().resolve(getDirectory(), "config"), //
+ getFS());
loadUserConfig();
loadRepoConfig();
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/LockFile.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/LockFile.java
index ad89a24..e8bc3e2 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/LockFile.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/LockFile.java
@@ -59,6 +59,7 @@ import java.text.MessageFormat;
import org.eclipse.jgit.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.util.FS;
/**
* Git style file locking and replacement.
@@ -94,15 +95,21 @@ public class LockFile {
private long commitLastModified;
+ private final FS fs;
+
/**
* Create a new lock for any file.
*
* @param f
* the file that will be locked.
+ * @param fs
+ * the file system abstraction which will be necessary to perform
+ * certain file system operations.
*/
- public LockFile(final File f) {
+ public LockFile(final File f, FS fs) {
ref = f;
lck = new File(ref.getParentFile(), ref.getName() + SUFFIX);
+ this.fs = fs;
}
/**
@@ -393,13 +400,32 @@ public class LockFile {
saveStatInformation();
if (lck.renameTo(ref))
return true;
- if (!ref.exists() || ref.delete())
+ if (!ref.exists() || deleteRef())
if (lck.renameTo(ref))
return true;
unlock();
return false;
}
+ private boolean deleteRef() {
+ if (!fs.retryFailedLockFileCommit())
+ return ref.delete();
+
+ // File deletion fails on windows if another thread is
+ // concurrently reading the same file. So try a few times.
+ //
+ for (int attempts = 0; attempts < 10; attempts++) {
+ if (ref.delete())
+ return true;
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException e) {
+ return false;
+ }
+ }
+ return false;
+ }
+
private void saveStatInformation() {
if (needStatInformation)
commitLastModified = lck.lastModified();
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/PackLock.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/PackLock.java
index be25011..dd08dfb 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/PackLock.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/PackLock.java
@@ -47,21 +47,26 @@ import java.io.File;
import java.io.IOException;
import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.util.FS;
/** Keeps track of a {@link PackFile}'s associated <code>.keep</code> file. */
public class PackLock {
private final File keepFile;
+ private final FS fs;
/**
* Create a new lock for a pack file.
*
* @param packFile
* location of the <code>pack-*.pack</code> file.
+ * @param fs
+ * the filesystem abstraction used by the repository.
*/
- public PackLock(final File packFile) {
+ public PackLock(final File packFile, final FS fs) {
final File p = packFile.getParentFile();
final String n = packFile.getName();
keepFile = new File(p, n.substring(0, n.length() - 5) + ".keep");
+ this.fs = fs;
}
/**
@@ -78,7 +83,7 @@ public class PackLock {
return false;
if (!msg.endsWith("\n"))
msg += "\n";
- final LockFile lf = new LockFile(keepFile);
+ final LockFile lf = new LockFile(keepFile, fs);
if (!lf.lock())
return false;
lf.write(Constants.encode(msg));
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectory.java
index 68b0270..b22b14a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectory.java
@@ -512,7 +512,8 @@ public class RefDirectory extends RefDatabase {
// we don't miss an edit made externally.
final PackedRefList packed = getPackedRefs();
if (packed.contains(name)) {
- LockFile lck = new LockFile(packedRefsFile);
+ LockFile lck = new LockFile(packedRefsFile,
+ update.getRepository().getFS());
if (!lck.lock())
throw new IOException(MessageFormat.format(
JGitText.get().cannotLockFile, packedRefsFile));
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectoryUpdate.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectoryUpdate.java
index 8d35ec3..a9f0548 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectoryUpdate.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/RefDirectoryUpdate.java
@@ -79,7 +79,7 @@ class RefDirectoryUpdate extends RefUpdate {
if (deref)
dst = dst.getLeaf();
String name = dst.getName();
- lock = new LockFile(database.fileFor(name));
+ lock = new LockFile(database.fileFor(name), getRepository().getFS());
if (lock.lock()) {
dst = database.getRef(name);
setOldObjectId(dst != null ? dst.getObjectId() : null);
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java
index ca68858..f747616 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java
@@ -279,7 +279,8 @@ class FetchProcess {
File meta = transport.local.getDirectory();
if (meta == null)
return;
- final LockFile lock = new LockFile(new File(meta, "FETCH_HEAD"));
+ final LockFile lock = new LockFile(new File(meta, "FETCH_HEAD"),
+ transport.local.getFS());
try {
if (lock.lock()) {
final Writer w = new OutputStreamWriter(lock.getOutputStream());
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java
index 25b499b..2daa105 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java
@@ -1101,7 +1101,7 @@ public class IndexPack {
final File packDir = new File(repo.getObjectsDirectory(), "pack");
final File finalPack = new File(packDir, "pack-" + name + ".pack");
final File finalIdx = new File(packDir, "pack-" + name + ".idx");
- final PackLock keep = new PackLock(finalPack);
+ final PackLock keep = new PackLock(finalPack, repo.getFS());
if (!packDir.exists() && !packDir.mkdir() && !packDir.exists()) {
// The objects/pack directory isn't present, and we are unable
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
index f4382eb..475c871 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
@@ -74,7 +74,7 @@ public abstract class SystemReader {
public FileBasedConfig openUserConfig(FS fs) {
final File home = fs.userHome();
- return new FileBasedConfig(new File(home, ".gitconfig"));
+ return new FileBasedConfig(new File(home, ".gitconfig"), fs);
}
public String getHostname() {