TypeScript/src/harness/exec.ts
2014-07-12 17:30:19 -07:00

74 lines
2.7 KiB
TypeScript

//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// 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.
//
// Allows for executing a program with command-line arguments and reading the result
interface IExec {
exec: (fileName: string, cmdLineArgs: string[], handleResult: (ExecResult: ExecResult) => void) => void;
}
class ExecResult {
public stdout = "";
public stderr = "";
public exitCode: number;
}
class WindowsScriptHostExec implements IExec {
public exec(fileName: string, cmdLineArgs: string[], handleResult: (ExecResult: ExecResult) => void) : void {
var result = new ExecResult();
var shell = new ActiveXObject('WScript.Shell');
try {
var process = shell.Exec(fileName + ' ' + cmdLineArgs.join(' '));
} catch(e) {
result.stderr = e.message;
result.exitCode = 1
handleResult(result);
return;
}
// Wait for it to finish running
while (process.Status != 0) { /* todo: sleep? */ }
result.exitCode = process.ExitCode;
if(!process.StdOut.AtEndOfStream) result.stdout = process.StdOut.ReadAll();
if(!process.StdErr.AtEndOfStream) result.stderr = process.StdErr.ReadAll();
handleResult(result);
}
}
class NodeExec implements IExec {
public exec(fileName: string, cmdLineArgs: string[], handleResult: (ExecResult: ExecResult) => void) : void {
var nodeExec = require('child_process').exec;
var result = new ExecResult();
result.exitCode = null;
var cmdLine = fileName + ' ' + cmdLineArgs.join(' ');
var process = nodeExec(cmdLine, function(error: any, stdout: string, stderr: string) {
result.stdout = stdout;
result.stderr = stderr;
result.exitCode = error ? error.code : 0;
handleResult(result);
});
}
}
var Exec: IExec = function() : IExec {
var global = <any>Function("return this;").call(null);
if(typeof global.ActiveXObject !== "undefined") {
return new WindowsScriptHostExec();
} else {
return new NodeExec();
}
}();