public static async Task <int> Execute(
IServiceProvider services,
Project project,
string command,
string[] args)
{
var environment = (IApplicationEnvironment)services.GetService(typeof(IApplicationEnvironment));
var commandText = project.Commands[command];
var replacementArgs = CommandGrammar.Process(
commandText,
(key) => GetVariable(environment, key),
preserveSurroundingQuotes: false)
.ToArray();
var entryPoint = replacementArgs[0];
args = replacementArgs.Skip(1).Concat(args).ToArray();
if (string.IsNullOrEmpty(entryPoint) ||
string.Equals(entryPoint, "run", StringComparison.Ordinal))
{
entryPoint = project.Name;
}
CallContextServiceLocator.Locator.ServiceProvider = services;
return(await ExecuteMain(services, entryPoint, args));
}
internal string AddScriptExtensionPropertyToCommandLine(string scriptCommandline,
string scriptExtensionPropertyName)
{
var scriptArguments = CommandGrammar.Process(
scriptCommandline,
(s) => null,
preserveSurroundingQuotes: true);
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
var scriptCommand = scriptArguments.First();
var trimmedCommand = scriptCommand.Trim('\"').Trim('\'');
// Path.IsPathRooted only looks at paths conforming to the current os,
// we need to account for all things
if (!IsPathRootedForAnyOS(trimmedCommand))
{
scriptCommand = @".\" + scriptCommand;
}
if (scriptCommand.EndsWith("\"") || scriptCommand.EndsWith("'"))
{
var endChar = scriptCommand.Last();
scriptCommand = $"{scriptCommand.TrimEnd(endChar)}$({scriptExtensionPropertyName}){endChar}";
}
else
{
scriptCommand += $"$({scriptExtensionPropertyName})";
}
var command = string.Join(" ", new[] { scriptCommand }.Concat(scriptArguments.Skip(1)));
return(command);
}
internal string ReplaceScriptVariables(string scriptCommandline)
{
Func <string, string> scriptVariableReplacementDelegate = key =>
{
if (ScriptVariableToMSBuildMap.ContainsKey(key))
{
if (ScriptVariableToMSBuildMap[key] == null)
{
MigrationErrorCodes.MIGRATE1016(
$"{key} is currently an unsupported script variable for project migration")
.Throw();
}
return(ScriptVariableToMSBuildMap[key]);
}
return($"$({key})");
};
var scriptArguments = CommandGrammar.Process(
scriptCommandline,
scriptVariableReplacementDelegate,
preserveSurroundingQuotes: true);
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
return(string.Join(" ", scriptArguments));
}
private static IEnumerable <string> ParseScriptArguments(Project project, string scriptCommandLine, Func <string, string> getVariable)
{
var scriptArguments = CommandGrammar.Process(
scriptCommandLine,
GetScriptVariable(project, getVariable),
preserveSurroundingQuotes: false);
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
if (scriptArguments.Length == 0)
{
return(null);
}
return(scriptArguments);
}
public void Execute(Runtime.Project project, string scriptName, Func <string, string> getVariable)
{
IEnumerable <string> scriptCommandLines;
if (!project.Scripts.TryGetValue(scriptName, out scriptCommandLines))
{
return;
}
foreach (var scriptCommandLine in scriptCommandLines)
{
var scriptArguments = CommandGrammar.Process(
scriptCommandLine,
GetScriptVariable(project, getVariable));
// Command-lines on Windows are executed via "cmd /C" in order
// to support batch files, &&, built-in commands like echo, etc.
// ComSpec is Windows-specific, and contains the full path to cmd.exe
var comSpec = Environment.GetEnvironmentVariable("ComSpec");
if (!string.IsNullOrEmpty(comSpec))
{
scriptArguments =
new[] { comSpec, "/C", "\"" }
.Concat(scriptArguments)
.Concat(new[] { "\"" })
.ToArray();
}
var startInfo = new ProcessStartInfo
{
FileName = scriptArguments.FirstOrDefault(),
Arguments = String.Join(" ", scriptArguments.Skip(1)),
WorkingDirectory = project.ProjectDirectory,
#if NET45
UseShellExecute = false,
#endif
};
var process = Process.Start(startInfo);
process.WaitForExit();
}
}
private string AddScriptExtension(ProjectPropertyGroupElement propertyGroup, string scriptCommandline, string scriptId)
{
var scriptArguments = CommandGrammar.Process(
scriptCommandline,
(s) => null,
preserveSurroundingQuotes: false);
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
var scriptCommand = scriptArguments.First();
var propertyName = $"MigratedScriptExtension_{scriptId}";
var windowsScriptExtensionProperty = propertyGroup.AddProperty(propertyName,
s_windowsScriptExtension);
var unixScriptExtensionProperty = propertyGroup.AddProperty(propertyName,
s_unixScriptExtension);
windowsScriptExtensionProperty.Condition =
$" '$(OS)' == 'Windows_NT' and Exists('{scriptCommand}{s_windowsScriptExtension}') ";
unixScriptExtensionProperty.Condition =
$" '$(OS)' != 'Windows_NT' and Exists('{scriptCommand}{s_unixScriptExtension}') ";
return(propertyName);
}
public bool Execute(Runtime.Project project, string scriptName, Func <string, string> getVariable)
{
IEnumerable <string> scriptCommandLines;
if (!project.Scripts.TryGetValue(scriptName, out scriptCommandLines))
{
return(true);
}
Report?.WriteLine($"Executing script '{scriptName}' in {Runtime.Project.ProjectFileName}");
foreach (var scriptCommandLine in scriptCommandLines)
{
// Preserve quotation marks around arguments since command is about to be passed to a shell. May need
// the quotes to ensure the shell groups arguments correctly.
var scriptArguments = CommandGrammar.Process(
scriptCommandLine,
GetScriptVariable(project, getVariable),
preserveSurroundingQuotes: true);
// Ensure the array won't be empty and the elements won't be null or empty strings.
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
if (scriptArguments.Length == 0)
{
continue;
}
if (RuntimeEnvironmentHelper.IsWindows)
{
// Only forward slashes are used in script blocks. Replace with backslashes to correctly
// locate the script. The directory separator is platform-specific.
scriptArguments[0] = scriptArguments[0].Replace(
Path.AltDirectorySeparatorChar,
Path.DirectorySeparatorChar);
// Command-lines on Windows are executed via "cmd /S /C" in order to support batch files, &&,
// built-in commands like echo, et cetera. /S allows quoting the command as well as the arguments.
// ComSpec is Windows-specific, and contains the full path to cmd.exe
var comSpec = Environment.GetEnvironmentVariable("ComSpec");
if (!string.IsNullOrEmpty(comSpec))
{
scriptArguments =
new[] { comSpec, "/S", "/C", "\"" }
.Concat(scriptArguments)
.Concat(new[] { "\"" })
.ToArray();
}
}
else
{
// Special-case a script name that, perhaps with added .sh, matches an existing file.
var surroundWithQuotes = false;
var scriptCandidate = scriptArguments[0];
if (scriptCandidate.StartsWith("\"", StringComparison.Ordinal) &&
scriptCandidate.EndsWith("\"", StringComparison.Ordinal))
{
// Strip surrounding quotes; they were required in project.json to keep the script name
// together but confuse File.Exists() e.g. "My Script", lacking ./ prefix and .sh suffix.
surroundWithQuotes = true;
scriptCandidate = scriptCandidate.Substring(1, scriptCandidate.Length - 2);
}
if (!scriptCandidate.EndsWith(".sh", StringComparison.Ordinal))
{
scriptCandidate = scriptCandidate + ".sh";
}
if (File.Exists(Path.Combine(project.ProjectDirectory, scriptCandidate)))
{
// scriptCandidate may be a path relative to the project root. If so, likely will not be found
// in the $PATH; add ./ to let bash know where to look.
var prefix = Path.IsPathRooted(scriptCandidate) ? string.Empty : "./";
var quote = surroundWithQuotes ? "\"" : string.Empty;
scriptArguments[0] = $"{ quote }{ prefix }{ scriptCandidate }{ quote }";
}
// Always use /usr/bin/env bash -c in order to support redirection and so on; similar to Windows case.
// Unlike Windows, must escape quotation marks within the newly-quoted string.
scriptArguments = new[] { "/usr/bin/env", "bash", "-c", "\"" }
.Concat(scriptArguments.Select(argument => argument.Replace("\"", "\\\"")))
.Concat(new[] { "\"" })
.ToArray();
}
var startInfo = new ProcessStartInfo
{
FileName = scriptArguments.FirstOrDefault(),
Arguments = string.Join(" ", scriptArguments.Skip(1)),
WorkingDirectory = project.ProjectDirectory,
#if DNX451
UseShellExecute = false
#endif
};
var process = Process.Start(startInfo);
process.WaitForExit();
if (process.ExitCode != 0)
{
ErrorMessage = string.Format(ErrorMessageTemplate, scriptName, process.ExitCode);
ExitCode = process.ExitCode;
return(false);
}
}
return(true);
}
public bool Execute(Runtime.Project project, string scriptName, Func <string, string> getVariable)
{
IEnumerable <string> scriptCommandLines;
if (!project.Scripts.TryGetValue(scriptName, out scriptCommandLines))
{
return(true);
}
foreach (var scriptCommandLine in scriptCommandLines)
{
var scriptArguments = CommandGrammar.Process(
scriptCommandLine,
GetScriptVariable(project, getVariable));
// Ensure the array won't be empty and the first element won't be null or empty string.
scriptArguments = scriptArguments.Where(argument => !string.IsNullOrEmpty(argument)).ToArray();
if (scriptArguments.Length == 0)
{
continue;
}
if (!PlatformHelper.IsMono)
{
// Forward-slash is used in script blocked only. Replace them with back-slash to correctly
// locate the script. The directory separator is platform-specific.
scriptArguments[0] = scriptArguments[0].Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
// Command-lines on Windows are executed via "cmd /C" in order
// to support batch files, &&, built-in commands like echo, etc.
// ComSpec is Windows-specific, and contains the full path to cmd.exe
var comSpec = Environment.GetEnvironmentVariable("ComSpec");
if (!string.IsNullOrEmpty(comSpec))
{
scriptArguments =
new[] { comSpec, "/C", "\"" }
.Concat(scriptArguments)
.Concat(new[] { "\"" })
.ToArray();
}
}
else
{
var scriptCandiate = scriptArguments[0] + ".sh";
if (File.Exists(scriptCandiate))
{
scriptArguments[0] = scriptCandiate;
scriptArguments = new[] { "/bin/bash" }.Concat(scriptArguments).ToArray();
}
}
var startInfo = new ProcessStartInfo
{
FileName = scriptArguments.FirstOrDefault(),
Arguments = String.Join(" ", scriptArguments.Skip(1)),
WorkingDirectory = project.ProjectDirectory,
#if ASPNET50
UseShellExecute = false
#endif
};
var process = Process.Start(startInfo);
process.WaitForExit();
if (process.ExitCode != 0)
{
ErrorMessage = string.Format(ErrorMessageTemplate, scriptName, process.ExitCode);
ExitCode = process.ExitCode;
return(false);
}
}
return(true);
}
public Task <int> Main(string[] args)
{
RuntimeOptions options;
string[] programArgs;
int exitCode;
bool shouldExit = ParseArgs(args, out options, out programArgs, out exitCode);
if (shouldExit)
{
return(Task.FromResult(exitCode));
}
IFileWatcher watcher;
if (options.WatchFiles)
{
watcher = new FileWatcher(ProjectResolver.ResolveRootDirectory(Path.GetFullPath(options.ApplicationBaseDirectory)));
}
else
{
watcher = NoopWatcher.Instance;
}
var host = new DefaultHost(options, _serviceProvider, _loadContextAccessor, watcher);
if (host.Project == null)
{
return(Task.FromResult(-1));
}
var lookupCommand = string.IsNullOrEmpty(options.ApplicationName) ? "run" : options.ApplicationName;
string replacementCommand;
if (host.Project.Commands.TryGetValue(lookupCommand, out replacementCommand))
{
// preserveSurroundingQuotes: false to imitate a shell. Shells remove quotation marks before calling
// Main methods. Here however we are invoking Main() without involving a shell.
var replacementArgs = CommandGrammar
.Process(replacementCommand, GetVariable, preserveSurroundingQuotes: false)
.ToArray();
options.ApplicationName = replacementArgs.First();
programArgs = replacementArgs.Skip(1).Concat(programArgs).ToArray();
}
if (string.IsNullOrEmpty(options.ApplicationName) ||
string.Equals(options.ApplicationName, "run", StringComparison.Ordinal))
{
options.ApplicationName = host.Project.EntryPoint ?? host.Project.Name;
}
IDisposable disposable = null;
try
{
disposable = host.AddLoaders(_container);
return(ExecuteMain(host, options.ApplicationName, programArgs)
.ContinueWith(async(t, state) =>
{
((IDisposable)state).Dispose();
return await t;
},
disposable).Unwrap());
}
catch
{
// If there's an error, dispose the host and throw
if (disposable != null)
{
disposable.Dispose();
}
throw;
}
}
public Task <int> Main(string[] args)
{
DefaultHostOptions options;
string[] programArgs;
var isShowingInformation = ParseArgs(args, out options, out programArgs);
if (isShowingInformation)
{
return(Task.FromResult(0));
}
var host = new DefaultHost(options, _serviceProvider);
if (host.Project == null)
{
return(Task.FromResult(-1));
}
var lookupCommand = string.IsNullOrEmpty(options.ApplicationName) ? "run" : options.ApplicationName;
string replacementCommand;
if (host.Project.Commands.TryGetValue(lookupCommand, out replacementCommand))
{
var replacementArgs = CommandGrammar.Process(
replacementCommand,
GetVariable).ToArray();
options.ApplicationName = replacementArgs.First();
programArgs = replacementArgs.Skip(1).Concat(programArgs).ToArray();
}
if (string.IsNullOrEmpty(options.ApplicationName) ||
string.Equals(options.ApplicationName, "run", StringComparison.Ordinal))
{
if (string.IsNullOrEmpty(host.Project.Name))
{
options.ApplicationName = Path.GetFileName(options.ApplicationBaseDirectory);
}
else
{
options.ApplicationName = host.Project.Name;
}
}
IDisposable disposable = null;
try
{
disposable = host.AddLoaders(_container);
return(ExecuteMain(host, options.ApplicationName, programArgs)
.ContinueWith(async(t, state) =>
{
((IDisposable)state).Dispose();
return await t;
},
disposable).Unwrap());
}
catch
{
// If there's an error, dispose the host and throw
if (disposable != null)
{
disposable.Dispose();
}
throw;
}
}
public static int Main(string[] args)
{
DefaultHostOptions options;
string[] programArgs;
int exitCode;
DefaultHost host;
try
{
bool shouldExit = ParseArgs(args, out options, out programArgs, out exitCode);
if (shouldExit)
{
return(exitCode);
}
host = new DefaultHost(options, PlatformServices.Default.AssemblyLoadContextAccessor);
if (host.Project == null)
{
return(1);
}
var lookupCommand = string.IsNullOrEmpty(options.ApplicationName) ? "run" : options.ApplicationName;
string replacementCommand;
if (host.Project.Commands.TryGetValue(lookupCommand, out replacementCommand))
{
// preserveSurroundingQuotes: false to imitate a shell. Shells remove quotation marks before calling
// Main methods. Here however we are invoking Main() without involving a shell.
var replacementArgs = CommandGrammar
.Process(replacementCommand, GetVariable, preserveSurroundingQuotes: false)
.ToArray();
options.ApplicationName = replacementArgs.First();
programArgs = replacementArgs.Skip(1).Concat(programArgs).ToArray();
}
if (string.IsNullOrEmpty(options.ApplicationName) ||
string.Equals(options.ApplicationName, "run", StringComparison.Ordinal))
{
options.ApplicationName = host.Project.EntryPoint ?? host.Project.Name;
}
}
catch (Exception ex)
{
throw SuppressStackTrace(ex);
}
IDisposable disposable = null;
try
{
disposable = host.AddLoaders(PlatformServices.Default.AssemblyLoaderContainer);
return(ExecuteMain(host, options.ApplicationName, programArgs)
.ContinueWith((t, state) =>
{
((IDisposable)state).Dispose();
return t.GetAwaiter().GetResult();
},
disposable).GetAwaiter().GetResult());
}
catch
{
// If there's an error, dispose the host and throw
if (disposable != null)
{
disposable.Dispose();
}
throw;
}
}
public Task<int> Main(string[] args)
{
ILogger log = null;
try
{
ApplicationHostOptions options;
string[] programArgs;
int exitCode;
bool shouldExit = ParseArgs(args, out options, out programArgs, out exitCode);
if (shouldExit)
{
return Task.FromResult(exitCode);
}
string traceConfig =
string.IsNullOrEmpty(options.Trace) ?
Environment.GetEnvironmentVariable(EnvironmentNames.Trace) :
options.Trace;
// Initialize logging
RuntimeLogging.Initialize(traceConfig, ConfigureLogging);
// "Program" is a terrible name for a logger and this is the only logger in
// this namespace :).
log = RuntimeLogging.Logger("Microsoft.Framework.ApplicationHost");
log.LogInformation("Application Host Starting");
// Construct the necessary context for hosting the application
var builder = RuntimeHostBuilder.ForProjectDirectory(
options.ApplicationBaseDirectory,
NuGetFramework.Parse(_environment.RuntimeFramework.FullName),
_serviceProvider);
// Configure assembly loading
builder.Loaders.Add(new ProjectAssemblyLoaderFactory(
new LibraryExporter(
builder.TargetFramework,
builder.PackagePathResolver)));
builder.Loaders.Add(new PackageAssemblyLoaderFactory(builder.PackagePathResolver));
if (builder.Project == null)
{
// Failed to load the project
Console.Error.WriteLine("Unable to find a project.json file.");
return Task.FromResult(3);
}
// Boot the runtime
var host = builder.Build();
// Get the project and print some information from it
log.LogInformation($"Project: {host.Project.Name} ({host.Project.BaseDirectory})");
// Determine the command to be executed
var command = string.IsNullOrEmpty(options.ApplicationName) ? "run" : options.ApplicationName;
string replacementCommand;
if (host.Project.Commands.TryGetValue(command, out replacementCommand))
{
var replacementArgs = CommandGrammar.Process(
replacementCommand,
GetVariable).ToArray();
options.ApplicationName = replacementArgs.First();
programArgs = replacementArgs.Skip(1).Concat(programArgs).ToArray();
}
if (string.IsNullOrEmpty(options.ApplicationName) ||
string.Equals(options.ApplicationName, "run", StringComparison.Ordinal))
{
options.ApplicationName = host.Project.EntryPoint ?? host.Project.Name;
}
log.LogInformation($"Executing '{options.ApplicationName}' '{string.Join(" ", programArgs)}'");
return host.ExecuteApplication(
_loaderContainer,
_loadContextAccessor,
options.ApplicationName,
programArgs);
}
catch (Exception ex)
{
if (log != null)
{
log.LogError($"{ex.GetType().FullName} {ex.Message}", ex);
}
Console.Error.WriteLine($"Error loading project: {ex.Message}");
return Task.FromResult(1);
}
}