C# BuildTargetContext.Warn方法代码示例

        public static BuildTargetResult ReplaceProjectJson(BuildTargetContext c)
        {
            List<DependencyInfo> dependencyInfos = c.GetDependencyInfos();

            IEnumerable<string> projectJsonFiles = Enumerable.Union(
                Directory.GetFiles(Dirs.RepoRoot, "project.json", SearchOption.AllDirectories),
                Directory.GetFiles(Path.Combine(Dirs.RepoRoot, @"src\dotnet\commands\dotnet-new"), "project.json.template", SearchOption.AllDirectories));

            JObject projectRoot;
            foreach (string projectJsonFile in projectJsonFiles)
            {
                try
                {
                    projectRoot = ReadProject(projectJsonFile);
                }
                catch (Exception e)
                {
                    c.Warn($"Non-fatal exception occurred reading '{projectJsonFile}'. Skipping file. Exception: {e}. ");
                    continue;
                }

                bool changedAnyPackage = FindAllDependencyProperties(projectRoot)
                    .Select(dependencyProperty => ReplaceDependencyVersion(dependencyProperty, dependencyInfos))
                    .ToArray()
                    .Any(shouldWrite => shouldWrite);

                if (changedAnyPackage)
                {
                    c.Info($"Writing changes to {projectJsonFile}");
                    WriteProject(projectRoot, projectJsonFile);
                }
            }

            return c.Success();
        }

        public static BuildTargetResult CrossgenSharedFx(BuildTargetContext c, string pathToAssemblies)
        {
            // Check if we need to skip crossgen
            if (string.Equals(Environment.GetEnvironmentVariable("DONT_CROSSGEN_SHAREDFRAMEWORK"), "1"))
            {
                c.Warn("Skipping crossgen for SharedFx because DONT_CROSSGEN_SHAREDFRAMEWORK is set to 1");
                return c.Success();
            }

            foreach (var file in Directory.GetFiles(pathToAssemblies))
            {
                string fileName = Path.GetFileName(file);

                if (fileName == "mscorlib.dll" || fileName == "mscorlib.ni.dll" || !HasMetadata(file))
                {
                    continue;
                }

                string tempPathName = Path.ChangeExtension(file, "readytorun");

                // This is not always correct. The version of crossgen we need to pick up is whatever one was restored as part
                // of the Microsoft.NETCore.Runtime.CoreCLR package that is part of the shared library. For now, the version hardcoded
                // in CompileTargets and the one in the shared library project.json match and are updated in lock step, but long term
                // we need to be able to look at the project.lock.json file and figure out what version of Microsoft.NETCore.Runtime.CoreCLR
                // was used, and then select that version.
                ExecSilent(Crossgen.GetCrossgenPathForVersion(CompileTargets.CoreCLRVersion),
                    "-readytorun", "-in", file, "-out", tempPathName, "-platform_assemblies_paths", pathToAssemblies);

                File.Delete(file);
                File.Move(tempPathName, file);
            }

            return c.Success();
        }

        private static BuildTargetResult CopyAppDeps(BuildTargetContext c, string outputDir)
        {
            var appDepOutputDir = Path.Combine(outputDir, "appdepsdk");
            Rmdir(appDepOutputDir);
            Mkdirp(appDepOutputDir);

            // Find toolchain package
            string packageId;

            if (CurrentPlatform.IsWindows)
            {
                if (CurrentArchitecture.Isx86)
                {
                    // https://github.com/dotnet/cli/issues/1550
                    c.Warn("Native compilation is not yet working on Windows x86");
                    return c.Success();
                }

                packageId = "toolchain.win7-x64.Microsoft.DotNet.AppDep";
            }
            else if (CurrentPlatform.IsUbuntu)
            {
                packageId = "toolchain.ubuntu.14.04-x64.Microsoft.DotNet.AppDep";
            }
            else if (CurrentPlatform.IsCentOS || CurrentPlatform.IsRHEL || CurrentPlatform.IsDebian)
            {
                c.Warn($"Native compilation is not yet working on {CurrentPlatform.Current}");
                return c.Success();
            }
            else if (CurrentPlatform.IsOSX)
            {
                packageId = "toolchain.osx.10.10-x64.Microsoft.DotNet.AppDep";
            }
            else
            {
                return c.Failed("Unsupported OS Platform");
            }

            var appDepPath = Path.Combine(
                Dirs.NuGetPackages,
                packageId,
                AppDepSdkVersion);
            CopyRecursive(appDepPath, appDepOutputDir, overwrite: true);

            return c.Success();
        }

        public static BuildTargetResult CheckPackageCache(BuildTargetContext c)
        {
            var ciBuild = string.Equals(Environment.GetEnvironmentVariable("CI_BUILD"), "1", StringComparison.Ordinal);

            if (ciBuild)
            {
                // On CI, HOME is redirected under the repo, which gets deleted after every build.
                // So make NUGET_PACKAGES outside of the repo.
                var nugetPackages = Path.GetFullPath(Path.Combine(c.BuildContext.BuildDirectory, "..", ".nuget", "packages"));
                Environment.SetEnvironmentVariable("NUGET_PACKAGES", nugetPackages);
                Dirs.NuGetPackages = nugetPackages;
            }

            // Set the package cache location in NUGET_PACKAGES just to be safe
            if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("NUGET_PACKAGES")))
            {
                Environment.SetEnvironmentVariable("NUGET_PACKAGES", Dirs.NuGetPackages);
            }

            CleanNuGetTempCache();

            // Determine cache expiration time
            var cacheExpiration = 7 * 24; // cache expiration in hours
            var cacheExpirationStr = Environment.GetEnvironmentVariable("NUGET_PACKAGES_CACHE_TIME_LIMIT");
            if (!string.IsNullOrEmpty(cacheExpirationStr))
            {
                cacheExpiration = int.Parse(cacheExpirationStr);
            }

            if (ciBuild)
            {
                var cacheTimeFile = Path.Combine(Dirs.NuGetPackages, "packageCacheTime.txt");

                DateTime? cacheTime = null;
                try
                {
                    // Read the cache file
                    if (File.Exists(cacheTimeFile))
                    {
                        var content = File.ReadAllText(cacheTimeFile);
                        if (!string.IsNullOrEmpty(content))
                        {
                            cacheTime = DateTime.ParseExact("O", content, CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
                        }
                    }
                }
                catch (Exception ex)
                {
                    c.Warn($"Error reading NuGet cache time file, leaving the cache alone");
                    c.Warn($"Error Detail: {ex.ToString()}");
                }

                if (cacheTime == null || (cacheTime.Value.AddHours(cacheExpiration) < DateTime.UtcNow))
                {
                    // Cache has expired or the status is unknown, clear it and write the file
                    c.Info("Clearing NuGet cache");
                    Rmdir(Dirs.NuGetPackages);
                    Mkdirp(Dirs.NuGetPackages);
                    File.WriteAllText(cacheTimeFile, DateTime.UtcNow.ToString("O"));
                }
            }

            return c.Success();
        }

        private static BuildTargetResult Crossgen(BuildTargetContext c, string outputDir)
        {
            // Check if we need to skip crossgen
            if (string.Equals(Environment.GetEnvironmentVariable("DOTNET_BUILD_SKIP_CROSSGEN"), "1"))
            {
                c.Warn("Skipping crossgen because DOTNET_BUILD_SKIP_CROSSGEN is set");
                return c.Success();
            }

            // Find crossgen
            string packageId;
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                packageId = "runtime.win7-x64.Microsoft.NETCore.Runtime.CoreCLR";
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                var osname = PlatformServices.Default.Runtime.OperatingSystem;
                if (string.Equals(osname, "ubuntu", StringComparison.OrdinalIgnoreCase))
                {
                    packageId = "runtime.ubuntu.14.04-x64.Microsoft.NETCore.Runtime.CoreCLR";
                }
                else if (string.Equals(osname, "centos", StringComparison.OrdinalIgnoreCase))
                {
                    // CentOS runtime is in the runtime.rhel.7-x64... package.
                    packageId = "runtime.rhel.7-x64.Microsoft.NETCore.Runtime.CoreCLR";
                }
                else
                {
                    return c.Failed($"Unknown Linux Distro: {osname}");
                }
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                packageId = "runtime.osx.10.10-x64.Microsoft.NETCore.Runtime.CoreCLR";
            }
            else
            {
                return c.Failed("Unsupported OS Platform");
            }

            var crossGenExePath = Path.Combine(
                Dirs.NuGetPackages,
                packageId,
                CoreCLRVersion,
                "tools",
                $"crossgen{Constants.ExeSuffix}");

            // We have to copy crossgen next to mscorlib
            var crossgen = Path.Combine(outputDir, $"crossgen{Constants.ExeSuffix}");
            File.Copy(crossGenExePath, crossgen, overwrite: true);
            Chmod(crossgen, "a+x");

            // And if we have mscorlib.ni.dll, we need to rename it to mscorlib.dll
            if (File.Exists(Path.Combine(outputDir, "mscorlib.ni.dll")))
            {
                File.Copy(Path.Combine(outputDir, "mscorlib.ni.dll"), Path.Combine(outputDir, "mscorlib.dll"), overwrite: true);
            }

            foreach (var assemblyToCrossgen in AssembliesToCrossGen)
            {
                c.Info($"Crossgenning {assemblyToCrossgen}");
                ExecInSilent(outputDir, crossgen, "-nologo", "-platform_assemblies_paths", outputDir, assemblyToCrossgen);
            }

            c.Info("Crossgen complete");

            // Check if csc/vbc.ni.exe exists, and overwrite the dll with it just in case
            if (File.Exists(Path.Combine(outputDir, "csc.ni.exe")) && !File.Exists(Path.Combine(outputDir, "csc.ni.dll")))
            {
                File.Move(Path.Combine(outputDir, "csc.ni.exe"), Path.Combine(outputDir, "csc.ni.dll"));
            }

            if (File.Exists(Path.Combine(outputDir, "vbc.ni.exe")) && !File.Exists(Path.Combine(outputDir, "vbc.ni.dll")))
            {
                File.Move(Path.Combine(outputDir, "vbc.ni.exe"), Path.Combine(outputDir, "vbc.ni.dll"));
            }

            return c.Success();
        }

        private static BuildTargetResult CopyAppDeps(BuildTargetContext c, string outputDir)
        {
            var appDepOutputDir = Path.Combine(outputDir, "appdepsdk");
            Rmdir(appDepOutputDir);
            Mkdirp(appDepOutputDir);

            // Find toolchain package
            string packageId;
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                packageId = "toolchain.win7-x64.Microsoft.DotNet.AppDep";
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                var osname = PlatformServices.Default.Runtime.OperatingSystem;
                if (string.Equals(osname, "ubuntu", StringComparison.OrdinalIgnoreCase))
                {
                    packageId = "toolchain.ubuntu.14.04-x64.Microsoft.DotNet.AppDep";
                }
                else if (string.Equals(osname, "centos", StringComparison.OrdinalIgnoreCase))
                {
                    c.Warn("Native compilation is not yet working on CentOS");
                    return c.Success();
                }
                else
                {
                    return c.Failed($"Unknown Linux Distro: {osname}");
                }
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                packageId = "toolchain.osx.10.10-x64.Microsoft.DotNet.AppDep";
            }
            else
            {
                return c.Failed("Unsupported OS Platform");
            }

            var appDepPath = Path.Combine(
                Dirs.NuGetPackages,
                packageId,
                AppDepSdkVersion);
            CopyRecursive(appDepPath, appDepOutputDir, overwrite: true);

            return c.Success();
        }

        public static BuildTargetResult CommitChanges(BuildTargetContext c)
        {
            CommandResult statusResult = Cmd("git", "status", "--porcelain")
                .CaptureStdOut()
                .Execute();
            statusResult.EnsureSuccessful();

            bool hasModifiedFiles = !string.IsNullOrWhiteSpace(statusResult.StdOut);
            bool hasUpdatedDependencies = c.GetDependencyInfos().Where(d => d.IsUpdated).Any();

            if (hasModifiedFiles != hasUpdatedDependencies)
            {
                return c.Failed($"'git status' does not match DependencyInfo information. Git has modified files: {hasModifiedFiles}. DependencyInfo is updated: {hasUpdatedDependencies}.");
            }

            if (!hasUpdatedDependencies)
            {
                c.Warn("Dependencies are currently up to date");
                return c.Success();
            }

            string userName = s_config.UserName;
            string email = s_config.Email;

            string commitMessage = GetCommitMessage(c);

            Cmd("git", "commit", "-a", "-m", commitMessage, "--author", $"{userName} <{email}>")
                .EnvironmentVariable("GIT_COMMITTER_NAME", userName)
                .EnvironmentVariable("GIT_COMMITTER_EMAIL", email)
                .Execute()
                .EnsureSuccessful();

            string remoteUrl = $"github.com/{s_config.GitHubOriginOwner}/{s_config.GitHubProject}.git";
            string remoteBranchName = $"UpdateDependencies{DateTime.UtcNow.ToString("yyyyMMddhhmmss")}";
            string refSpec = $"HEAD:refs/heads/{remoteBranchName}";

            string logMessage = $"git push https://{remoteUrl} {refSpec}";
            BuildReporter.BeginSection("EXEC", logMessage);

            CommandResult pushResult =
                Cmd("git", "push", $"https://{userName}:{s_config.Password}@{remoteUrl}", refSpec)
                    .QuietBuildReporter()  // we don't want secrets showing up in our logs
                    .CaptureStdErr() // git push will write to StdErr upon success, disable that
                    .CaptureStdOut()
                    .Execute();

            var message = logMessage + $" exited with {pushResult.ExitCode}";
            if (pushResult.ExitCode == 0)
            {
                BuildReporter.EndSection("EXEC", message.Green(), success: true);
            }
            else
            {
                BuildReporter.EndSection("EXEC", message.Red().Bold(), success: false);
            }

            pushResult.EnsureSuccessful(suppressOutput: true);

            c.SetRemoteBranchName(remoteBranchName);

            return c.Success();
        }

        public static BuildTargetResult CheckPackageCache(BuildTargetContext c)
        {
            var ciBuild = string.Equals(Environment.GetEnvironmentVariable("CI_BUILD"), "1", StringComparison.Ordinal);

            // Always set the package cache location local to the build
            Environment.SetEnvironmentVariable("NUGET_PACKAGES", Dirs.NuGetPackages);

            CleanNuGetTempCache();

            // Determine cache expiration time
            var cacheExpiration = 7 * 24; // cache expiration in hours
            var cacheExpirationStr = Environment.GetEnvironmentVariable("NUGET_PACKAGES_CACHE_TIME_LIMIT");
            if (!string.IsNullOrEmpty(cacheExpirationStr))
            {
                cacheExpiration = int.Parse(cacheExpirationStr);
            }

            if (ciBuild)
            {
                var cacheTimeFile = Path.Combine(Dirs.NuGetPackages, "packageCacheTime.txt");

                DateTime? cacheTime = null;
                try
                {
                    // Read the cache file
                    if (File.Exists(cacheTimeFile))
                    {
                        var content = File.ReadAllText(cacheTimeFile);
                        if (!string.IsNullOrEmpty(content))
                        {
                            cacheTime = DateTime.ParseExact("O", content, CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
                        }
                    }
                }
                catch (Exception ex)
                {
                    c.Warn($"Error reading NuGet cache time file, leaving the cache alone");
                    c.Warn($"Error Detail: {ex.ToString()}");
                }

                if (cacheTime == null || (cacheTime.Value.AddHours(cacheExpiration) < DateTime.UtcNow))
                {
                    // Cache has expired or the status is unknown, clear it and write the file
                    c.Info("Clearing NuGet cache");
                    Rmdir(Dirs.NuGetPackages);
                    Mkdirp(Dirs.NuGetPackages);
                    File.WriteAllText(cacheTimeFile, DateTime.UtcNow.ToString("O"));
                }
            }

            return c.Success();
        }