Files
duplicati/ReleaseBuilder/Build/Command.GpgSign.cs
T

53 lines
2.2 KiB
C#

namespace ReleaseBuilder.Build;
public static partial class Command
{
/// <summary>
/// Implementation of the gpg sign command
/// </summary>
private static class GpgSign
{
/// <summary>
/// Performs a GPG sign operation on the files
/// </summary>
/// <param name="files">The files to sign</param>
/// <param name="rtcfg">The runtime configuration</param>
/// <returns>An awaitable task</returns>
public static async Task SignReleaseFiles(IEnumerable<string> files, RuntimeConfig rtcfg)
{
var (gpgid, passphrase) = GetGpgIdAndPassphrase(rtcfg);
foreach (var file in files)
foreach (var armored in new[] { true, false })
await ProcessHelper.Execute(
[
Program.Configuration.Commands.Gpg!,
"--pinentry-mode", "loopback",
"--passphrase-fd", "0",
"--batch", "--yes",
armored ? "--armor" : string.Empty,
"-u", gpgid,
"--output", file + (armored ? "sig.asc" : ".sig"),
"--detach-sign", file
],
workingDirectory: Path.GetDirectoryName(file),
writeStdIn: (stdin) => stdin.WriteLineAsync(passphrase)
);
}
/// <summary>
/// Gets the GPG ID and passphrase from the keyfile
/// </summary>
/// <param name="rtcfg">The runtime configuration</param>
/// <returns>The GPG ID and passphrase</returns>
static (string GpgId, string GpgPassphrase) GetGpgIdAndPassphrase(RuntimeConfig rtcfg)
{
using var ms = new MemoryStream();
using var fs = File.OpenRead(Program.Configuration.ConfigFiles.GpgKeyfile);
SharpAESCrypt.SharpAESCrypt.Decrypt(rtcfg.KeyfilePassword, fs, ms);
var parts = System.Text.Encoding.UTF8.GetString(ms.ToArray()).Split('\n', 2, StringSplitOptions.RemoveEmptyEntries);
return (parts[0], parts[1]);
}
}
}