81 lines
1.8 KiB
JavaScript
81 lines
1.8 KiB
JavaScript
var _ = require('lodash');
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var childProcess = require('child_process');
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var spawn = require("spawn-cmd").spawn;
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var Promise = require('./promise');
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// Execute a command
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function exec(command, options) {
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var d = Promise.defer();
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var child = childProcess.exec(command, options, function(err, stdout, stderr) {
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if (!err) {
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return d.resolve();
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}
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err.message = stdout.toString('utf8') + stderr.toString('utf8');
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d.reject(err);
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});
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child.stdout.on('data', function (data) {
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d.notify(data);
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});
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child.stderr.on('data', function (data) {
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d.notify(data);
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});
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return d.promise;
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}
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// Spawn an executable
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function spawnCmd(command, args, options) {
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var d = Promise.defer();
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var child = spawn(command, args, options);
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child.on('error', function(error) {
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return d.reject(error);
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});
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child.stdout.on('data', function (data) {
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d.notify(data);
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});
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child.stderr.on('data', function (data) {
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d.notify(data);
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});
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child.on('close', function(code) {
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if (code === 0) {
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d.resolve();
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} else {
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d.reject(new Error('Error with command "'+command+'"'));
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}
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});
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return d.promise;
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}
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// Transform an option object to a command line string
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function escapeShellArg(s) {
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s = s.replace(/"/g, '\\"');
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return '"' + s + '"';
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}
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function optionsToShellArgs(options) {
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return _.chain(options)
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.map(function(value, key) {
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if (value === null || value === undefined || value === false) return null;
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if (value === true) return key;
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return key + '=' + escapeShellArg(value);
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})
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.compact()
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.value()
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.join(' ');
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}
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module.exports = {
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exec: exec,
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spawn: spawnCmd,
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optionsToShellArgs: optionsToShellArgs
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};
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