mirror of
https://github.com/SrIzan10/nodemon.git
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107 lines
3.2 KiB
JavaScript
107 lines
3.2 KiB
JavaScript
var path = require('path'),
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utils = require('../utils');
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module.exports = exec;
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/**
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* Discovers all the options required to run the script
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* and if a custom exec has been passed in, then it will
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* also try to work out what extensions to monitor and
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* whether there's a special way of running that script.
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*
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* @param {Object} nodemonOptions
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* @param {Object} extensionMap
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* @return {Object} new and updated version of nodemonOptions
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*/
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function exec(nodemonOptions, extensionMap) {
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if (!extensionMap) {
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extensionMap = {};
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}
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var options = utils.clone(nodemonOptions || {}),
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script = path.basename(options.script || ''),
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scriptExt = path.extname(script),
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extension = options.ext || scriptExt || 'js';
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if (options.exec === undefined) {
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options.exec = 'node';
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} else {
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// allow variable substitution for {{filename}} and {{pwd}}
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options.exec = (options.exec || '').replace(/\{\{(filename|pwd)\}\}/, function (all, m) {
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if (m === 'filename') {
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return script || '';
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} else if (m === 'pwd') {
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return process.cwd() || '';
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}
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return all;
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});
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}
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options.execArgs = [];
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if (options.exec.indexOf(' ') !== -1) {
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var execOptions = options.exec.split(' ');
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options.exec = execOptions.splice(0, 1)[0];
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options.execArgs = execOptions;
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}
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// TODO decide whether this extensionMap idea is useful or not
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if (extensionMap[extension] !== undefined) {
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options.exec = extensionMap[extension];
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}
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if (options.exec === 'node' && options.nodeArgs && options.nodeArgs.length) {
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options.execArgs = options.execArgs.concat(options.nodeArgs);
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}
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// note: indexOf('coffee') handles both .coffee and .litcoffee
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if (options.exec === 'node' && scriptExt.indexOf('coffee') !== -1) {
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options.exec = 'coffee';
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// ensure that we call: `coffee --nodejs ...`
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if (options.execArgs === undefined) {
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options.execArgs = [];
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}
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if (options.execArgs.length && options.execArgs.indexOf('--nodejs') === -1) {
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options.execArgs.unshift('--nodejs');
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}
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}
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if (options.exec === 'coffee') {
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// don't override user specified extension tracking
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if (!options.ext) {
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extension = '.coffee|.litcoffee|.js';
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}
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// because windows can't find 'coffee', it needs the real file 'coffee.cmd'
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if (utils.isWindows) {
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options.exec += '.cmd';
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}
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}
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// allow users to make a mistake on the extension to monitor
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// converts js,jade => .js$|.jade$
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// and 'js jade' => .js$|.jade$
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// BIG NOTE: user can't do this: nodemon -e *.js
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// because the terminal will automatically expand the glob against
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// the file system :(
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if (extension.indexOf(' ') !== -1 ||
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extension.indexOf(',') !== -1 ||
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extension.indexOf('*.') !== -1) {
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extension = extension.replace(/\s+/g, '|') // convert spaces to pipes
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.replace(/,/g, '|') // convert commas to pipes
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.split('|') // split on those pipes
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.map(function (item) {
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return '.' + item.replace(/^[\*\.]+/, ''); // remove "*."
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}).join('$|'); // return regexp string like: .js$|.jade$
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}
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// this final part ensures both multiple extension and
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// single extensions work
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extension += '$';
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options.ext = extension;
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return options;
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} |