public void Build(Hapi.Chart.Chart chart, Stream stream)
{
if (chart == null)
{
throw new ArgumentNullException(nameof(chart));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (!stream.CanWrite)
{
throw new ArgumentOutOfRangeException(nameof(stream), "The stream must be writeable");
}
if (stream.CanSeek)
{
// Clear out the stream.
stream.SetLength(0);
}
using (var gzipStream = new GZipStream(stream, CompressionMode.Compress, leaveOpen: true))
using (var writer = new TarWriter(gzipStream, new WriterOptions(CompressionType.None)
{
LeaveStreamOpen = true
}))
{
var chartName = chart.Metadata.Name;
this.WriteObject(writer, $"{chartName}/Chart.yaml", chart.Metadata);
if (!string.IsNullOrWhiteSpace(chart.Values.Raw))
{
this.WriteString(writer, $"{chartName}/values.yaml", chart.Values.Raw);
}
foreach (var template in chart.Templates)
{
if (!template.Name.StartsWith($"templates/"))
{
throw new InvalidOperationException($"The name of the template {template.Name} must start with templates/.");
}
this.WriteByteString(writer, $"{chartName}/{template.Name}", template.Data);
}
foreach (var file in chart.Files)
{
this.WriteByteString(writer, $"{chartName}/{file.TypeUrl}", file.Value);
}
}
}
public Hapi.Chart.Chart Serialize()
{
var chart = new Hapi.Chart.Chart();
chart.Metadata = this.Metadata;
this.stream.Seek(0, SeekOrigin.Begin);
using (var gzipStream = new GZipStream(this.stream, CompressionMode.Decompress, leaveOpen: true))
using (var reader = TarReader.Open(gzipStream, new ReaderOptions()
{
LeaveStreamOpen = true
}))
{
while (reader.MoveToNextEntry())
{
if (this.IsTemplate(reader.Entry.Key))
{
using (Stream entryStream = reader.OpenEntryStream())
{
var template = new Hapi.Chart.Template()
{
Data = ByteString.FromStream(entryStream),
Name = Normalize(reader.Entry.Key).Substring(this.directoryName.Length + 1)
};
chart.Templates.Add(template);
}
}
else if (this.IsValues(reader.Entry.Key))
{
using (Stream entryStream = reader.OpenEntryStream())
using (StreamReader entryReader = new StreamReader(entryStream))
{
chart.Values = new Hapi.Chart.Config()
{
Raw = entryReader.ReadToEnd()
};
}
}
else if (!this.IsTemplate(reader.Entry.Key) &&
!this.IsMetadata(reader.Entry.Key) &&
!this.IsValues(reader.Entry.Key))
{
// TODO: respect .helmignore
using (Stream entryStream = reader.OpenEntryStream())
{
chart.Files.Add(new Any()
{
TypeUrl = Normalize(reader.Entry.Key).Substring(this.directoryName.Length + 1),
Value = ByteString.FromStream(entryStream)
});
}
}
}
}
// Dependencies are currently not supported
// chart.Dependencies.Add();
return(chart);
}
