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#region Copyright notice and license
// Copyright 2018 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#endregion
using System;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security;
[assembly: InternalsVisibleTo("Grpc.Tools.Tests")]
namespace Grpc.Tools {
// Metadata names (MSBuild item attributes) that we refer to often.
static class Metadata {
// On output dependency lists.
public static string Source = "Source";
// On ProtoBuf items.
public static string ProtoRoot = "ProtoRoot";
public static string OutputDir = "OutputDir";
public static string GrpcServices = "GrpcServices";
public static string GrpcOutputDir = "GrpcOutputDir";
};
// A few flags used to control the behavior under various platforms.
internal static class Platform {
public enum OsKind { Unknown, Windows, Linux, MacOsX };
public static readonly OsKind Os;
public enum CpuKind { Unknown, X86, X64 };
public static readonly CpuKind Cpu;
// This is not necessarily true, but good enough. BCL lacks a per-FS
// API to determine file case sensitivity.
public static bool IsFsCaseInsensitive => Os == OsKind.Windows;
public static bool IsWindows => Os == OsKind.Windows;
static Platform() {
#if NETSTANDARD
Os = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? OsKind.Windows
: RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? OsKind.Linux
: RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? OsKind.MacOsX
: OsKind.Unknown;
switch (RuntimeInformation.OSArchitecture) {
case Architecture.X86: Cpu = CpuKind.X86; break;
case Architecture.X64: Cpu = CpuKind.X64; break;
// We do not have build tools for other architectures.
default: Cpu = CpuKind.Unknown; break;
}
#else
// Running under either Mono or full MS framework.
Os = OsKind.Windows;
if (Type.GetType("Mono.Runtime", throwOnError: false) != null) {
// Congratulations. We are running under Mono.
var plat = Environment.OSVersion.Platform;
if (plat == PlatformID.MacOSX) {
Os = OsKind.MacOsX;
} else if (plat == PlatformID.Unix || (int)plat == 128) {
// TODO(kkm): This is how Mono detects OSX internally. Looks cheesy
// to me. Would not testing for /proc absence be more reliable? OSX
// did never have it, AFAIK.
Os = File.Exists("/usr/lib/libc.dylib") ? OsKind.MacOsX : OsKind.Linux;
}
}
// Hope we are not building on ARM under Xamarin!
Cpu = Environment.Is64BitOperatingSystem ? CpuKind.X64 : CpuKind.X86;
#endif
}
};
// Exception handling helpers.
static class Exceptions {
// Returns true iff the exception indicates an error from an I/O call. See
// https://github.com/Microsoft/msbuild/blob/v15.4.8.50001/src/Shared/ExceptionHandling.cs#L101
static public bool IsIoRelated(Exception ex) =>
ex is IOException ||
(ex is ArgumentException && !(ex is ArgumentNullException)) ||
ex is SecurityException ||
ex is UnauthorizedAccessException ||
ex is NotSupportedException;
};
// String helpers.
static class Strings {
// Compare string to argument using OrdinalIgnoreCase comparison.
public static bool EqualNoCase(this string a, string b) =>
string.Equals(a, b, StringComparison.OrdinalIgnoreCase);
}
}
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