public void CompareProtoToParser(string path, bool includeImports)
{
if (path == "google/protobuf/map_unittest_proto3.proto")
{
return; // TODO known oddity
}
var schemaPath = Path.Combine(Directory.GetCurrentDirectory(), SchemaPath);
_output.WriteLine(Path.GetDirectoryName(
Path.Combine(schemaPath, path).Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar)));
bool includeComments = IncludeComments(path);
var protocBinPath = Path.Combine(schemaPath, Path.ChangeExtension(path, "protoc.bin"));
int exitCode;
string protocExe = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? @"windows\protoc" :
RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? @"macosx/protoc" : "";
if (string.IsNullOrWhiteSpace(protocExe))
{
throw new PlatformNotSupportedException(RuntimeInformation.OSDescription);
}
using (var proc = new Process())
{
var psi = proc.StartInfo;
psi.FileName = protocExe;
psi.Arguments = $"--experimental_allow_proto3_optional --descriptor_set_out={protocBinPath} {path}";
if (includeComments)
{
psi.Arguments += " --include_source_info";
}
if (includeImports)
{
psi.Arguments += " --include_imports";
}
psi.RedirectStandardError = psi.RedirectStandardOutput = true;
psi.CreateNoWindow = true;
psi.UseShellExecute = false;
psi.WorkingDirectory = schemaPath;
proc.Start();
var stdout = proc.StandardOutput.ReadToEndAsync();
var stderr = proc.StandardError.ReadToEndAsync();
if (!proc.WaitForExit(5000))
{
try { proc.Kill(); } catch { }
}
exitCode = proc.ExitCode;
string err = "", @out = "";
if (stdout.Wait(1000))
{
@out = stdout.Result;
}
if (stderr.Wait(1000))
{
err = stderr.Result;
}
if (!string.IsNullOrWhiteSpace(@out))
{
_output.WriteLine("stdout: ");
_output.WriteLine(@out);
}
if (!string.IsNullOrWhiteSpace(err))
{
_output.WriteLine("stderr: ");
_output.WriteLine(err);
}
}
FileDescriptorSet set;
string protocJson = null, jsonPath;
if (exitCode == 0)
{
using var file = File.OpenRead(protocBinPath);
set = CustomProtogenSerializer.Instance.Deserialize <FileDescriptorSet>(file);
protocJson = JsonConvert.SerializeObject(set, Formatting.Indented, jsonSettings);
jsonPath = Path.Combine(schemaPath, Path.ChangeExtension(path, "protoc.json"));
File.WriteAllText(jsonPath, protocJson);
}
set = new FileDescriptorSet();
set.AddImportPath(schemaPath);
bool isProto3 = set.Add(path, includeInOutput: true) && set.Files[0].Syntax == "proto3";
if (isProto3)
{
using var proc = new Process();
var psi = proc.StartInfo;
psi.FileName = protocExe;
psi.Arguments = $"--experimental_allow_proto3_optional --csharp_out={Path.GetDirectoryName(protocBinPath)} {path}";
psi.RedirectStandardError = psi.RedirectStandardOutput = true;
psi.CreateNoWindow = true;
psi.UseShellExecute = false;
psi.WorkingDirectory = schemaPath;
proc.Start();
var stdout = proc.StandardOutput.ReadToEndAsync();
var stderr = proc.StandardError.ReadToEndAsync();
if (!proc.WaitForExit(5000))
{
try { proc.Kill(); } catch { }
}
exitCode = proc.ExitCode;
string err = "", @out = "";
if (stdout.Wait(1000))
{
@out = stdout.Result;
}
if (stderr.Wait(1000))
{
err = stderr.Result;
}
if (!string.IsNullOrWhiteSpace(@out))
{
_output.WriteLine("stdout (C#): ");
_output.WriteLine(@out);
}
if (!string.IsNullOrWhiteSpace(err))
{
_output.WriteLine("stderr (C#): ");
_output.WriteLine(err);
}
_output.WriteLine("exit code(C#): " + exitCode);
}
set.Process();
set.ApplyFileDependencyOrder();
var parserBinPath = Path.Combine(schemaPath, Path.ChangeExtension(path, "parser.bin"));
using (var file = File.Create(parserBinPath))
{
set.Serialize(CustomProtogenSerializer.Instance, file, includeImports);
}
var parserJson = set.Serialize((s, _) => JsonConvert.SerializeObject(s, Formatting.Indented, jsonSettings), includeImports);
var errors = set.GetErrors();
Exception genError = null;
try
{
var options = new Dictionary <string, string>
{
{ "services", "true" },
};
foreach (var file in CSharpCodeGenerator.Default.Generate(set, options: options))
{
var newExtension = "parser" + Path.GetExtension(file.Name);
var newFileName = Path.ChangeExtension(file.Name, newExtension);
File.WriteAllText(Path.Combine(schemaPath, newFileName), file.Text);
}
}
catch (Exception ex)
{
genError = ex;
_output.WriteLine(ex.Message);
_output.WriteLine(ex.StackTrace);
}
jsonPath = Path.Combine(schemaPath, Path.ChangeExtension(path, "parser.json"));
File.WriteAllText(jsonPath, parserJson);
if (errors.Length > 0)
{
_output.WriteLine("Parser errors:");
foreach (var err in errors)
{
_output.WriteLine(err.ToString());
}
}
_output.WriteLine("Protoc exited with code " + exitCode);
var errorCount = errors.Count(x => x.IsError);
if (exitCode == 0)
{
Assert.Equal(0, errorCount);
}
else
{
Assert.NotEqual(0, errorCount);
}
var parserBytes = File.ReadAllBytes(parserBinPath);
using (var ms = new MemoryStream(parserBytes))
{
var selfLoad = CustomProtogenSerializer.Instance.Deserialize <FileDescriptorSet>(ms);
var selfLoadJson = JsonConvert.SerializeObject(selfLoad, Formatting.Indented, jsonSettings);
// should still be the same!
Assert.Equal(parserJson, selfLoadJson);
}
var parserHex = GetPrettyHex(parserBytes);
File.WriteAllText(Path.ChangeExtension(parserBinPath, "parser.hex"), parserHex);
if (exitCode == 0)
{
var protocHex = GetPrettyHex(File.ReadAllBytes(protocBinPath));
File.WriteAllText(Path.ChangeExtension(protocBinPath, "protoc.hex"), protocHex);
switch (path)
{
case "google/protobuf/unittest_custom_options.proto":
case "advancedOptions.proto":
// these are special cases; the two encoders choose slightly different
// layouts for the same data; both are valid; I'm happy that this is OK
// - this was why the "decode" tool (on the website) was written!
break;
case "google/protobuf/unittest.proto":
// ^^^ different layout of an integer; "2e+8" vs "200000000" - I'm fine with it
//
// the following end up importing unittest.proto, so have the same symptom
case "google/protobuf/map_unittest.proto" when(includeImports):
case "google/protobuf/unittest_optimize_for.proto" when(includeImports):
case "google/protobuf/unittest_embed_optimize_for.proto" when(includeImports):
case "google/protobuf/unittest_lite_imports_nonlite.proto" when(includeImports):
case "google/protobuf/unittest_no_field_presence.proto" when(includeImports):
break;
default:
// compare results
Assert.Equal(protocJson, parserJson);
Assert.Equal(protocHex, parserHex);
break;
}
}
Assert.Null(genError);
}