public ReleasePackage CreateDeltaPackage(ReleasePackage basePackage, ReleasePackage newPackage, string outputFile)
{
Contract.Requires(basePackage != null);
Contract.Requires(!String.IsNullOrEmpty(outputFile) && !File.Exists(outputFile));
if (basePackage.Version > newPackage.Version)
{
var message = String.Format(
"You cannot create a delta package based on version {0} as it is a later version than {1}",
basePackage.Version,
newPackage.Version);
throw new InvalidOperationException(message);
}
if (basePackage.ReleasePackageFile == null)
{
throw new ArgumentException("The base package's release file is null", "basePackage");
}
if (!File.Exists(basePackage.ReleasePackageFile))
{
throw new FileNotFoundException("The base package release does not exist", basePackage.ReleasePackageFile);
}
if (!File.Exists(newPackage.ReleasePackageFile))
{
throw new FileNotFoundException("The new package release does not exist", newPackage.ReleasePackageFile);
}
string baseTempPath = null;
string tempPath = null;
using (Utility.WithTempDirectory(out baseTempPath, null))
using (Utility.WithTempDirectory(out tempPath, null)) {
var baseTempInfo = new DirectoryInfo(baseTempPath);
var tempInfo = new DirectoryInfo(tempPath);
this.Log().Info("Extracting {0} and {1} into {2}",
basePackage.ReleasePackageFile, newPackage.ReleasePackageFile, tempPath);
Utility.ExtractZipToDirectory(basePackage.ReleasePackageFile, baseTempInfo.FullName).Wait();
var opts = new ExtractionOptions()
{
ExtractFullPath = true, Overwrite = true, PreserveFileTime = true
};
Utility.ExtractZipToDirectory(basePackage.ReleasePackageFile, baseTempInfo.FullName).Wait();
Utility.ExtractZipToDirectory(newPackage.ReleasePackageFile, tempInfo.FullName).Wait();
// Collect a list of relative paths under 'lib' and map them
// to their full name. We'll use this later to determine in
// the new version of the package whether the file exists or
// not.
var baseLibFiles = baseTempInfo.GetAllFilesRecursively()
.Where(x => x.FullName.ToLowerInvariant().Contains("lib" + Path.DirectorySeparatorChar))
.ToDictionary(k => k.FullName.Replace(baseTempInfo.FullName, ""), v => v.FullName);
var newLibDir = tempInfo.GetDirectories().First(x => x.Name.ToLowerInvariant() == "lib");
foreach (var libFile in newLibDir.GetAllFilesRecursively())
{
createDeltaForSingleFile(libFile, tempInfo, baseLibFiles);
}
ReleasePackage.addDeltaFilesToContentTypes(tempInfo.FullName);
Utility.CreateZipFromDirectory(outputFile, tempInfo.FullName).Wait();
}
return(new ReleasePackage(outputFile));
}
