public void MountUpgradesFromEsentDatabasesToFlatDatabases()
{
this.Enlistment.UnmountGVFS();
// Delete the existing background ops data
string flatBackgroundPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.BackgroundOpsFile);
flatBackgroundPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(flatBackgroundPath);
// Delete the existing placeholder data
string flatPlaceholdersPath = Path.Combine(this.Enlistment.DotGVFSRoot, GVFSHelpers.PlaceholderListFile);
flatPlaceholdersPath.ShouldBeAFile(this.fileSystem);
this.fileSystem.DeleteFile(flatPlaceholdersPath);
ESENTDatabase.CreateEsentBackgroundOpsDatabase(this.Enlistment.DotGVFSRoot);
ESENTDatabase.CreateEsentPlaceholderDatabase(this.Enlistment.DotGVFSRoot);
// Nine is the last version with ESENT BackgroundOps and Placeholders DBs
GVFSHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGVFSRoot, "9", "0");
this.Enlistment.MountGVFS();
this.ValidatePersistedVersionMatchesCurrentVersion();
flatBackgroundPath.ShouldBeAFile(this.fileSystem);
flatPlaceholdersPath.ShouldBeAFile(this.fileSystem);
}
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 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 MountFailsToUpgradeFromEsentVersion6ToJsonRepoMetadata()
{
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, "6");
string esentDatabasePath = Path.Combine(this.Enlistment.DotGVFSRoot, ESENTDatabase.EsentRepoMetadataFolder);
esentDatabasePath.ShouldBeADirectory(this.fileSystem);
this.Enlistment.TryMountGVFS().ShouldEqual(false, "Should not be able to upgrade from version 6");
esentDatabasePath.ShouldBeADirectory(this.fileSystem);
}
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);
// Since there isn't a sparse-checkout file that is used anymore one needs to be added
// in order to test the old upgrades that might have needed it
string sparseCheckoutPath = Path.Combine(enlistment.RepoRoot, TestConstants.DotGit.Info.SparseCheckoutPath);
this.fileSystem.WriteAllText(sparseCheckoutPath, "/.gitattributes\r\n");
// "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),
};
ESENTDatabase.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);
// Since there isn't a sparse-checkout file that is used anymore one needs to be added
// in order to test the old upgrades that might have needed it
string sparseCheckoutPath2 = Path.Combine(enlistment2.RepoRoot, TestConstants.DotGit.Info.SparseCheckoutPath);
this.fileSystem.WriteAllText(sparseCheckoutPath2, "/.gitattributes\r\n");
// "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),
};
ESENTDatabase.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);
}
}
