Ejemplo n.º 1
0
        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);
            }
        }
Ejemplo n.º 2
0
        public void RepairFixesCorruptBlobSizesDatabase()
        {
            GVFSFunctionalTestEnlistment enlistment = this.CloneAndMountEnlistment();

            enlistment.UnmountGVFS();

            // Repair on a healthy enlistment should succeed
            enlistment.Repair();

            string blobSizesRoot   = GVFSHelpers.GetPersistedBlobSizesRoot(enlistment.DotGVFSRoot).ShouldNotBeNull();
            string blobSizesDbPath = Path.Combine(blobSizesRoot, "BlobSizes.sql");

            blobSizesDbPath.ShouldBeAFile(this.fileSystem);
            this.fileSystem.WriteAllText(blobSizesDbPath, "0000");

            enlistment.TryMountGVFS().ShouldEqual(false, "GVFS shouldn't mount when blob size db is corrupt");
            enlistment.Repair();
            enlistment.MountGVFS();
        }
Ejemplo n.º 3
0
        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);
            }
        }