private void GenerateDeltas(VersionManifest manifest, string sourceDirectory, string destionationDirectory, string newVersion, int numberOfVersionsAsDelta)
{
string newVersionDirectory = Path.Combine(destionationDirectory, newVersion);
var publishedVersions = Directory.EnumerateDirectories(destionationDirectory)
.Select(x => x.Remove(0, destionationDirectory.Length))
.Except(new[] { newVersion })
.OrderByDescending(x => x)
.Take(numberOfVersionsAsDelta);
foreach (var version in publishedVersions)
{
string versionDirectory = Path.Combine(destionationDirectory, version);
string manifestFile = Path.Combine(versionDirectory, "manifest.xml");
VersionManifest versionManifest = VersionManifest.LoadVersionFile(version, manifestFile);
foreach (var file in manifest.Files)
{
VersionManifestFile fileInVersion = versionManifest.Files.FirstOrDefault(x => x.Name.Equals(file.Name, StringComparison.CurrentCultureIgnoreCase));
if (fileInVersion != null && fileInVersion.Checksum != file.Checksum)
{
if (file.GetDeltaFrom(fileInVersion.Checksum) == null)
{
string oldFile = Path.Combine(versionDirectory, fileInVersion.Name + ".deploy");
string decompressedOldFile = Path.GetTempFileName();
byte[] data = File.ReadAllBytes(oldFile);
data = DataCompressor.Decompress(data);
File.WriteAllBytes(decompressedOldFile, data);
string decompressedNewFile = Path.Combine(sourceDirectory, fileInVersion.Name);
string deltaFilename = String.Format("deltas\\{0}.{1}.deploy", fileInVersion.Name, GetShortChecksum(fileInVersion.Checksum));
string deltaFile = Path.Combine(newVersionDirectory, deltaFilename);
Directory.CreateDirectory(Path.GetDirectoryName(deltaFile));
DeltaAPI.CreateDelta(decompressedOldFile, decompressedNewFile, deltaFile, true);
File.Delete(decompressedOldFile);
VersionManifestDeltaFile deltaInfo = new VersionManifestDeltaFile(deltaFilename, fileInVersion.Checksum, new FileInfo(deltaFile).Length);
file.Deltas.Add(deltaInfo);
}
}
}
}
}
public UpdateRecipe UpdateTo(VersionManifest newVersionManifest)
{
List<UpdateRecipeFile> recipeFiles = new List<UpdateRecipeFile>();
foreach (var file in newVersionManifest.Files)
{
VersionManifestFile originalFile = this.Files.FirstOrDefault(x => x.Name.Equals(file.Name, StringComparison.CurrentCultureIgnoreCase));
FileUpdateAction action = FileUpdateAction.Download;
string fileToDownload = file.DeployedName;
long size = file.Size;
if (originalFile != null)
{
if (originalFile.Checksum == file.Checksum)
{
action = FileUpdateAction.Copy;
}
else if (DeltaAPI.IsSupported())
{
VersionManifestDeltaFile delta = file.GetDeltaFrom(originalFile.Checksum);
if (delta != null)
{
action = FileUpdateAction.DownloadDelta;
fileToDownload = delta.Filename;
size = delta.Size;
}
}
}
recipeFiles.Add(new UpdateRecipeFile(file.Name, file.Checksum, size, action, fileToDownload));
}
return new UpdateRecipe(newVersionManifest.Version, this.Version, recipeFiles);
}
public void UpdateTo_WithAnIncorrectDelta_SetTheActionAsDownload()
{
VersionManifestFile fileOriginal = new VersionManifestFile("arquivo1.txt", "333", 1000);
VersionManifestFile fileUpdate = new VersionManifestFile("arquivo1.txt", "123", 1000);
fileUpdate.Deltas.Add(new VersionManifestDeltaFile("deltas\\arquivo1.txt", "444", 10));
VersionManifest currentManifest = new VersionManifest("1.0.0", new VersionManifestFile[] { fileOriginal });
VersionManifest updateManifest = new VersionManifest("2.0.0", new VersionManifestFile[] { fileUpdate });
UpdateRecipe recipe = currentManifest.UpdateTo(updateManifest);
Assert.That(recipe.Files, Has.Count.EqualTo(1));
Assert.That(recipe.Files.First().Action, Is.EqualTo(FileUpdateAction.Download));
}
public void UpdateTo_VersionWithTheFileWithIncorrectChecksum_SetTheActionAsDownload()
{
VersionManifestFile fileOriginal = new VersionManifestFile("arquivo1.txt", "333", 1000);
VersionManifestFile fileUpdate = new VersionManifestFile("arquivo1.txt", "123", 1000);
VersionManifest currentManifest = new VersionManifest("1.0.0", new VersionManifestFile[] { fileOriginal });
VersionManifest updateManifest = new VersionManifest("2.0.0", new VersionManifestFile[] { fileUpdate });
UpdateRecipe recipe = currentManifest.UpdateTo(updateManifest);
Assert.That(recipe.Files, Has.Count.EqualTo(1));
Assert.That(recipe.Files.First().Action, Is.EqualTo(FileUpdateAction.Download));
}
public void UpdateTo_VersionWithEqualFile_SetTheActionAsCopy()
{
VersionManifestFile fileUpdate = new VersionManifestFile("arquivo1.txt", "123", 1000);
VersionManifest currentManifest = new VersionManifest("1.0.0", new VersionManifestFile[] { fileUpdate });
VersionManifest updateManifest = new VersionManifest("2.0.0", new VersionManifestFile[] { fileUpdate });
UpdateRecipe recipe = currentManifest.UpdateTo(updateManifest);
Assert.That(recipe.Files, Has.Count.EqualTo(1));
Assert.That(recipe.Files.First().Action, Is.EqualTo(FileUpdateAction.Copy));
}
public void UpdateTo_ReturnsARecipe()
{
VersionManifestFile fileUpdate = new VersionManifestFile("arquivo1.txt", "123", 1000);
VersionManifest currentManifest = new VersionManifest("1.0.0", new VersionManifestFile[] { });
VersionManifest updateManifest = new VersionManifest("2.0.0", new VersionManifestFile[] { fileUpdate });
UpdateRecipe recipe = currentManifest.UpdateTo(updateManifest);
Assert.That(recipe, Is.Not.Null);
Assert.That(recipe.CurrentVersion, Is.EqualTo("1.0.0"));
Assert.That(recipe.NewVersion, Is.EqualTo("2.0.0"));
Assert.That(recipe.Files, Has.Count.EqualTo(1));
}
