public void DehydrateShouldFailIfLocalCacheNotInMetadata()
{
this.Enlistment.UnmountGVFS();
string majorVersion;
string minorVersion;
GVFSHelpers.GetPersistedDiskLayoutVersion(this.Enlistment.DotGVFSRoot, out majorVersion, out minorVersion);
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot).ShouldNotBeNull();
string metadataPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
string metadataBackupPath = metadataPath + ".backup";
this.fileSystem.MoveFile(metadataPath, metadataBackupPath);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGVFSRoot, majorVersion, minorVersion);
GVFSHelpers.SaveGitObjectsRoot(this.Enlistment.DotGVFSRoot, objectsRoot);
this.DehydrateShouldFail("Failed to determine local cache path from repo metadata", noStatus: true);
this.fileSystem.DeleteFile(metadataPath);
this.fileSystem.MoveFile(metadataBackupPath, metadataPath);
this.Enlistment.MountGVFS();
}
public void DeleteCacheDuringHydrations()
{
GVFSFunctionalTestEnlistment enlistment1 = this.CloneAndMountEnlistment();
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment1.DotGVFSRoot).ShouldNotBeNull();
objectsRoot.ShouldBeADirectory(this.fileSystem);
Task task1 = Task.Run(() =>
{
this.HydrateEntireRepo(enlistment1);
});
while (!task1.IsCompleted)
{
try
{
// Delete objectsRoot rather than this.localCachePath as the blob sizes database cannot be deleted while GVFS is mounted
this.DeleteDirectoryWithUnlimitedRetries(objectsRoot);
Thread.Sleep(100);
}
catch (IOException)
{
// Hydration may have handles into the cache, so failing this delete is expected.
}
}
task1.Exception.ShouldBeNull();
enlistment1.Status().ShouldContain("Mount status: Ready");
}
private void AlternatesFileShouldHaveGitObjectsRoot(GVFSFunctionalTestEnlistment enlistment)
{
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot);
string alternatesFileContents = Path.Combine(enlistment.RepoRoot, ".git", "objects", "info", "alternates").ShouldBeAFile(this.fileSystem).WithContents();
alternatesFileContents.ShouldEqual(objectsRoot);
}
public void MountReusesLocalCacheKeyWhenGitObjectsRootDeleted()
{
GVFSFunctionalTestEnlistment enlistment = this.CloneAndMountEnlistment();
enlistment.UnmountGVFS();
// Find the current git objects root and ensure it's on disk
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot).ShouldNotBeNull();
objectsRoot.ShouldBeADirectory(this.fileSystem);
string mappingFilePath = Path.Combine(enlistment.LocalCacheRoot, "mapping.dat");
string mappingFileContents = this.fileSystem.ReadAllText(mappingFilePath);
mappingFileContents.Length.ShouldNotEqual(0, "mapping.dat should not be empty");
// Delete the git objects root folder, mount should re-create it and the mapping.dat file should not change
this.DeleteDirectoryWithUnlimitedRetries(objectsRoot);
enlistment.MountGVFS();
GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot).ShouldEqual(objectsRoot);
objectsRoot.ShouldBeADirectory(this.fileSystem);
mappingFilePath.ShouldBeAFile(this.fileSystem).WithContents(mappingFileContents);
this.AlternatesFileShouldHaveGitObjectsRoot(enlistment);
}
public void MountSetsGitObjectsRootToLegacyDotGVFSCache()
{
this.Enlistment.UnmountGVFS();
// Delete the existing repo metadata
string versionJsonPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(versionJsonPath);
// "11" was the last version before the introduction of a volume wide GVFS cache
string metadataPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGVFSRoot, "11", "0");
// Create the legacy cache location: <root>\.gvfs\gitObjectCache
string legacyGitObjectsCachePath = Path.Combine(this.Enlistment.DotGVFSRoot, "gitObjectCache");
this.fileSystem.CreateDirectory(legacyGitObjectsCachePath);
this.Enlistment.MountGVFS();
this.ValidatePersistedVersionMatchesCurrentVersion();
GVFSHelpers.GetPersistedLocalCacheRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(string.Empty, "LocalCacheRoot should be an empty string when upgrading from a version prior to 12");
GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(legacyGitObjectsCachePath);
}
public void DeleteObjectsCacheAndCacheMappingBeforeMount()
{
GVFSFunctionalTestEnlistment enlistment1 = this.CloneAndMountEnlistment();
GVFSFunctionalTestEnlistment enlistment2 = this.CloneAndMountEnlistment();
enlistment1.UnmountGVFS();
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment1.DotGVFSRoot).ShouldNotBeNull();
objectsRoot.ShouldBeADirectory(this.fileSystem);
this.DeleteDirectoryWithUnlimitedRetries(objectsRoot);
string metadataPath = Path.Combine(this.localCachePath, "mapping.dat");
metadataPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(metadataPath);
enlistment1.MountGVFS();
Task task1 = Task.Run(() => this.HydrateRootFolder(enlistment1));
Task task2 = Task.Run(() => this.HydrateRootFolder(enlistment2));
task1.Wait();
task2.Wait();
task1.Exception.ShouldBeNull();
task2.Exception.ShouldBeNull();
enlistment1.Status().ShouldContain("Mount status: Ready");
enlistment2.Status().ShouldContain("Mount status: Ready");
this.AlternatesFileShouldHaveGitObjectsRoot(enlistment1);
this.AlternatesFileShouldHaveGitObjectsRoot(enlistment2);
}
private void RunEsentRepoMetadataUpgradeTest(string sourceVersion)
{
this.Enlistment.UnmountGVFS();
// Delete the existing repo metadata
string versionJsonPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(versionJsonPath);
ESENTDatabase.SaveDiskLayoutVersionAsEsentDatabase(this.Enlistment.DotGVFSRoot, sourceVersion);
string esentDatabasePath = Path.Combine(this.Enlistment.DotGVFSRoot, ESENTDatabase.EsentRepoMetadataFolder);
esentDatabasePath.ShouldBeADirectory(this.fileSystem);
// We should be able to mount, and there should no longer be any Esent Repo Metadata
this.Enlistment.MountGVFS();
esentDatabasePath.ShouldNotExistOnDisk(this.fileSystem);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.ValidatePersistedVersionMatchesCurrentVersion();
GVFSHelpers.GetPersistedLocalCacheRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(string.Empty, "LocalCacheRoot should be an empty string when upgrading from a version prior to 12");
// We're starting with fresh enlisments, and so the legacy cache location: <root>\.gvfs\gitObjectCache should not be on disk
Path.Combine(this.Enlistment.DotGVFSRoot, @".gvfs\gitObjectCache").ShouldNotExistOnDisk(this.fileSystem);
// The upgrader should set GitObjectsRoot to src\.git\objects (because the legacy cache location is not on disk)
GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot)
.ShouldNotBeNull("GitObjectsRoot should not be null")
.ShouldEqual(Path.Combine(this.Enlistment.RepoRoot, @".git\objects"));
}
public void CloneWithDefaultLocalCacheLocation()
{
FileSystemRunner fileSystem = FileSystemRunner.DefaultRunner;
string homeDirectory = Environment.GetEnvironmentVariable("HOME");
homeDirectory.ShouldBeADirectory(fileSystem);
string newEnlistmentRoot = GVFSFunctionalTestEnlistment.GetUniqueEnlistmentRoot();
ProcessStartInfo processInfo = new ProcessStartInfo(GVFSTestConfig.PathToGVFS);
processInfo.Arguments = $"clone {Properties.Settings.Default.RepoToClone} {newEnlistmentRoot} --no-mount --no-prefetch";
processInfo.WindowStyle = ProcessWindowStyle.Hidden;
processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
processInfo.RedirectStandardOutput = true;
ProcessResult result = ProcessHelper.Run(processInfo);
result.ExitCode.ShouldEqual(0, result.Errors);
string dotGVFSRoot = Path.Combine(newEnlistmentRoot, GVFSTestConfig.DotGVFSRoot);
dotGVFSRoot.ShouldBeADirectory(fileSystem);
string localCacheRoot = GVFSHelpers.GetPersistedLocalCacheRoot(dotGVFSRoot);
string gitObjectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(dotGVFSRoot);
string defaultGVFSCacheRoot = Path.Combine(homeDirectory, ".gvfsCache");
localCacheRoot.StartsWith(defaultGVFSCacheRoot, StringComparison.Ordinal).ShouldBeTrue($"Local cache root did not default to using {homeDirectory}");
gitObjectsRoot.StartsWith(defaultGVFSCacheRoot, StringComparison.Ordinal).ShouldBeTrue($"Git objects root did not default to using {homeDirectory}");
RepositoryHelpers.DeleteTestDirectory(newEnlistmentRoot);
}
public void MountUpgradesPreSharedCacheLocalSizes()
{
this.Enlistment.UnmountGVFS();
// Delete the existing repo metadata
string versionJsonPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(versionJsonPath);
// "11" was the last version before the introduction of a volume wide GVFS cache
string metadataPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGVFSRoot, "11", "0");
// Create the legacy cache location: <root>\.gvfs\gitObjectCache
string legacyGitObjectsCachePath = Path.Combine(this.Enlistment.DotGVFSRoot, "gitObjectCache");
this.fileSystem.CreateDirectory(legacyGitObjectsCachePath);
// Create a legacy PersistedDictionary sizes database
List <KeyValuePair <string, long> > entries = new List <KeyValuePair <string, long> >()
{
new KeyValuePair <string, long>(new string('0', 40), 1),
new KeyValuePair <string, long>(new string('1', 40), 2),
new KeyValuePair <string, long>(new string('2', 40), 4),
new KeyValuePair <string, long>(new string('3', 40), 8),
};
ESENTDatabase.CreateEsentBlobSizesDatabase(this.Enlistment.DotGVFSRoot, entries);
this.Enlistment.MountGVFS();
this.ValidatePersistedVersionMatchesCurrentVersion();
GVFSHelpers.GetPersistedLocalCacheRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(string.Empty, "LocalCacheRoot should be an empty string when upgrading from a version prior to 12");
GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(legacyGitObjectsCachePath);
string newBlobSizesRoot = Path.Combine(this.Enlistment.DotGVFSRoot, DatabasesFolderName, BlobSizesCacheName);
GVFSHelpers.GetPersistedBlobSizesRoot(this.Enlistment.DotGVFSRoot)
.ShouldEqual(newBlobSizesRoot);
string blobSizesDbPath = Path.Combine(newBlobSizesRoot, BlobSizesDBFileName);
newBlobSizesRoot.ShouldBeADirectory(this.fileSystem);
blobSizesDbPath.ShouldBeAFile(this.fileSystem);
foreach (KeyValuePair <string, long> entry in entries)
{
GVFSHelpers.SQLiteBlobSizesDatabaseHasEntry(blobSizesDbPath, entry.Key, entry.Value);
}
}
public void MountRegeneratesAlternatesFileWhenMissingFromDisk()
{
this.Enlistment.UnmountGVFS();
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot).ShouldNotBeNull();
string alternatesFilePath = Path.Combine(this.Enlistment.RepoRoot, ".git", "objects", "info", "alternates");
alternatesFilePath.ShouldBeAFile(this.fileSystem).WithContents(objectsRoot);
this.fileSystem.DeleteFile(alternatesFilePath);
this.Enlistment.MountGVFS();
alternatesFilePath.ShouldBeAFile(this.fileSystem).WithContents(objectsRoot);
}
public void MountRegeneratesAlternatesFileWhenMissingGitObjectsRoot()
{
this.Enlistment.UnmountGVFS();
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot).ShouldNotBeNull();
string alternatesFilePath = this.Enlistment.GetDotGitPath("objects", "info", "alternates");
alternatesFilePath.ShouldBeAFile(this.fileSystem).WithContents(objectsRoot);
this.fileSystem.WriteAllText(alternatesFilePath, "Z:\\invalidPath");
this.Enlistment.MountGVFS();
alternatesFilePath.ShouldBeAFile(this.fileSystem).WithContents(objectsRoot);
}
public void MountUsesNewLocalCacheKeyWhenLocalCacheDeleted()
{
GVFSFunctionalTestEnlistment enlistment = this.CloneAndMountEnlistment();
enlistment.UnmountGVFS();
// Find the current git objects root and ensure it's on disk
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot).ShouldNotBeNull();
objectsRoot.ShouldBeADirectory(this.fileSystem);
string mappingFilePath = Path.Combine(enlistment.LocalCacheRoot, "mapping.dat");
string mappingFileContents = this.fileSystem.ReadAllText(mappingFilePath);
mappingFileContents.Length.ShouldNotEqual(0, "mapping.dat should not be empty");
// Delete the local cache folder, mount should re-create it and generate a new mapping file and local cache key
this.DeleteDirectoryWithUnlimitedRetries(enlistment.LocalCacheRoot);
enlistment.MountGVFS();
// Mount should recreate the local cache root
enlistment.LocalCacheRoot.ShouldBeADirectory(this.fileSystem);
// Determine the new local cache key
string newMappingFileContents = mappingFilePath.ShouldBeAFile(this.fileSystem).WithContents();
const int GuidStringLength = 32;
string mappingFileKey = "A {\"Key\":\"https://gvfs.visualstudio.com/ci/_git/fortests\",\"Value\":\"";
int localKeyIndex = newMappingFileContents.IndexOf(mappingFileKey);
string newCacheKey = newMappingFileContents.Substring(localKeyIndex + mappingFileKey.Length, GuidStringLength);
// Validate the new objects root is on disk and uses the new key
objectsRoot.ShouldNotExistOnDisk(this.fileSystem);
string newObjectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot);
newObjectsRoot.ShouldNotEqual(objectsRoot);
newObjectsRoot.ShouldContain(newCacheKey);
newObjectsRoot.ShouldBeADirectory(this.fileSystem);
this.AlternatesFileShouldHaveGitObjectsRoot(enlistment);
}
public void MountFailsWhenNoLocalCacheRootInRepoMetadata()
{
this.Enlistment.UnmountGVFS();
string currentVersion = GVFSHelpers.GetPersistedDiskLayoutVersion(this.Enlistment.DotGVFSRoot).ShouldNotBeNull();
string objectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(this.Enlistment.DotGVFSRoot).ShouldNotBeNull();
string metadataPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
string metadataBackupPath = metadataPath + ".backup";
this.fileSystem.MoveFile(metadataPath, metadataBackupPath);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGVFSRoot, currentVersion);
GVFSHelpers.SaveGitObjectsRoot(this.Enlistment.DotGVFSRoot, objectsRoot);
this.MountShouldFail("Failed to determine local cache path from repo metadata");
this.fileSystem.DeleteFile(metadataPath);
this.fileSystem.MoveFile(metadataBackupPath, metadataPath);
this.Enlistment.MountGVFS();
}
public void MountUpgradesLocalSizesToSharedCache()
{
GVFSFunctionalTestEnlistment enlistment = this.CloneAndMountEnlistment();
enlistment.UnmountGVFS();
string localCacheRoot = GVFSHelpers.GetPersistedLocalCacheRoot(enlistment.DotGVFSRoot);
string gitObjectsRoot = GVFSHelpers.GetPersistedGitObjectsRoot(enlistment.DotGVFSRoot);
// Delete the existing repo metadata
string versionJsonPath = Path.Combine(enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(versionJsonPath);
// "13.0" was the last version before blob sizes were moved out of Esent
string metadataPath = Path.Combine(enlistment.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(enlistment.DotGVFSRoot, "13", "0");
GVFSHelpers.SaveLocalCacheRoot(enlistment.DotGVFSRoot, localCacheRoot);
GVFSHelpers.SaveGitObjectsRoot(enlistment.DotGVFSRoot, gitObjectsRoot);
// Create a legacy PersistedDictionary sizes database
List <KeyValuePair <string, long> > entries = new List <KeyValuePair <string, long> >()
{
new KeyValuePair <string, long>(new string('0', 40), 1),
new KeyValuePair <string, long>(new string('1', 40), 2),
new KeyValuePair <string, long>(new string('2', 40), 4),
new KeyValuePair <string, long>(new string('3', 40), 8),
};
GVFSHelpers.CreateEsentBlobSizesDatabase(enlistment.DotGVFSRoot, entries);
enlistment.MountGVFS();
string majorVersion;
string minorVersion;
GVFSHelpers.GetPersistedDiskLayoutVersion(enlistment.DotGVFSRoot, out majorVersion, out minorVersion);
majorVersion
.ShouldBeAnInt("Disk layout version should always be an int")
.ShouldEqual(DiskLayoutUpgradeTests.CurrentDiskLayoutMajorVersion, "Disk layout version should be upgraded to the latest");
minorVersion
.ShouldBeAnInt("Disk layout version should always be an int")
.ShouldEqual(DiskLayoutUpgradeTests.CurrentDiskLayoutMinorVersion, "Disk layout version should be upgraded to the latest");
string newBlobSizesRoot = Path.Combine(Path.GetDirectoryName(gitObjectsRoot), DiskLayoutUpgradeTests.BlobSizesCacheName);
GVFSHelpers.GetPersistedBlobSizesRoot(enlistment.DotGVFSRoot)
.ShouldEqual(newBlobSizesRoot);
string blobSizesDbPath = Path.Combine(newBlobSizesRoot, DiskLayoutUpgradeTests.BlobSizesDBFileName);
newBlobSizesRoot.ShouldBeADirectory(this.fileSystem);
blobSizesDbPath.ShouldBeAFile(this.fileSystem);
foreach (KeyValuePair <string, long> entry in entries)
{
GVFSHelpers.SQLiteBlobSizesDatabaseHasEntry(blobSizesDbPath, entry.Key, entry.Value);
}
// Upgrade a second repo, and make sure all sizes from both upgrades are in the shared database
GVFSFunctionalTestEnlistment enlistment2 = this.CloneAndMountEnlistment();
enlistment2.UnmountGVFS();
// Delete the existing repo metadata
versionJsonPath = Path.Combine(enlistment2.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
versionJsonPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(versionJsonPath);
// "13.0" was the last version before blob sizes were moved out of Esent
metadataPath = Path.Combine(enlistment2.DotGVFSRoot, GVFSHelpers.RepoMetadataName);
this.fileSystem.CreateEmptyFile(metadataPath);
GVFSHelpers.SaveDiskLayoutVersion(enlistment2.DotGVFSRoot, "13", "0");
GVFSHelpers.SaveLocalCacheRoot(enlistment2.DotGVFSRoot, localCacheRoot);
GVFSHelpers.SaveGitObjectsRoot(enlistment2.DotGVFSRoot, gitObjectsRoot);
// Create a legacy PersistedDictionary sizes database
List <KeyValuePair <string, long> > additionalEntries = new List <KeyValuePair <string, long> >()
{
new KeyValuePair <string, long>(new string('4', 40), 16),
new KeyValuePair <string, long>(new string('5', 40), 32),
new KeyValuePair <string, long>(new string('6', 40), 64),
};
GVFSHelpers.CreateEsentBlobSizesDatabase(enlistment2.DotGVFSRoot, additionalEntries);
enlistment2.MountGVFS();
foreach (KeyValuePair <string, long> entry in entries)
{
GVFSHelpers.SQLiteBlobSizesDatabaseHasEntry(blobSizesDbPath, entry.Key, entry.Value);
}
foreach (KeyValuePair <string, long> entry in additionalEntries)
{
GVFSHelpers.SQLiteBlobSizesDatabaseHasEntry(blobSizesDbPath, entry.Key, entry.Value);
}
}
