private static async Task <PackageArchiveMetadata> CreateArchiveAsync(string id, string version, params ZipEntry[] files)
{
using (var zipArchiveStream = new MemoryStream())
{
using (var zipArchive = new ZipArchive(zipArchiveStream, ZipArchiveMode.Create, leaveOpen: true))
{
foreach (var file in files)
{
var entry = zipArchive.CreateEntry(file.Name, file.CompressionLevel);
if (file.ExternalAttributes.HasValue)
{
entry.ExternalAttributes = file.ExternalAttributes.Value;
}
if (file.LastWriteTime.HasValue)
{
entry.LastWriteTime = file.LastWriteTime.Value;
}
using (var sourceStream = new MemoryStream(Encoding.UTF8.GetBytes(file.Contents)))
using (var destinationStream = entry.Open())
{
sourceStream.CopyTo(destinationStream);
}
}
}
zipArchiveStream.Position = 0;
using (var reader = new ZipDirectoryReader(zipArchiveStream))
{
var zipDirectory = await reader.ReadAsync();
return(new PackageArchiveMetadata
{
Id = id,
Version = version,
Size = zipArchiveStream.Length,
ZipDirectory = zipDirectory,
});
}
}
}
private async Task <PackageArchiveMetadata> InitializeItemAsync(PackageEntity package, CancellationToken token)
{
// Read the .zip directory.
ZipDirectory zipDirectory;
long size;
using (var stream = await _mZipStore.GetMZipStreamOrNullAsync(
package.PackageRegistration.Id,
package.Version,
token))
{
if (stream == null)
{
if (!package.CatalogPackage.Deleted)
{
throw new InvalidOperationException($"Could not find .mzip for {package.PackageRegistration.Id} {package.Version}.");
}
return(null);
}
using (var reader = new ZipDirectoryReader(stream))
{
zipDirectory = await reader.ReadAsync();
size = stream.Length;
}
}
// Gather the metadata.
var metadata = new PackageArchiveMetadata
{
Id = package.PackageRegistration.Id,
Version = package.Version,
Size = size,
ZipDirectory = zipDirectory,
};
return(metadata);
}
