FM / config

/usr/local/lib/node_modules/nodemon/lib/config/

/usr/local/lib/node_modules/nodemon/lib/config

Name	Size	Mode	Actions
command.js	1249	0644	edit dl rm
defaults.js	815	0644	edit dl rm
exec.js	6859	0644	edit dl rm
index.js	2511	0644	edit dl rm
load.js	7613	0644	edit dl rm

Edit: /usr/local/lib/node_modules/nodemon/lib/config/exec.js (6859B)

const path = require('path');
const fs = require('fs');
const existsSync = fs.existsSync;
const utils = require('../utils');

module.exports = exec;
module.exports.expandScript = expandScript;

/**
 * Reads the cwd/package.json file and looks to see if it can load a script
 * and possibly an exec first from package.main, then package.start.
 *
 * @return {Object} exec & script if found
 */
function execFromPackage() {
  // doing a try/catch because we can't use the path.exist callback pattern
  // or we could, but the code would get messy, so this will do exactly
  // what we're after - if the file doesn't exist, it'll throw.
  try {
    // note: this isn't nodemon's package, it's the user's cwd package
    var pkg = require(path.join(process.cwd(), 'package.json'));
    if (pkg.main !== undefined) {
      // no app found to run - so give them a tip and get the feck out
      return { exec: null, script: pkg.main };
    }

if (pkg.scripts && pkg.scripts.start) {
      return { exec: pkg.scripts.start };
    }
  } catch (e) { }

return null;
}

function replace(map, str) {
  var re = new RegExp('{{(' + Object.keys(map).join('|') + ')}}', 'g');
  return str.replace(re, function (all, m) {
    return map[m] || all || '';
  });
}

function expandScript(script, ext) {
  if (!ext) {
    ext = '.js';
  }
  if (script.indexOf(ext) !== -1) {
    return script;
  }

if (existsSync(path.resolve(script))) {
    return script;
  }

if (existsSync(path.resolve(script + ext))) {
    return script + ext;
  }

return script;
}

/**
 * Discovers all the options required to run the script
 * and if a custom exec has been passed in, then it will
 * also try to work out what extensions to monitor and
 * whether there's a special way of running that script.
 *
 * @param  {Object} nodemonOptions
 * @param  {Object} execMap
 * @return {Object} new and updated version of nodemonOptions
 */
function exec(nodemonOptions, execMap) {
  if (!execMap) {
    execMap = {};
  }

var options = utils.clone(nodemonOptions || {});
  var script;

// if there's no script passed, try to get it from the first argument
  if (!options.script && (options.args || []).length) {
    script = expandScript(options.args[0],
      options.ext && ('.' + (options.ext || 'js').split(',')[0]));

// if the script was found, shift it off our args
    if (script !== options.args[0]) {
      options.script = script;
      options.args.shift();
    }
  }

// if there's no exec found yet, then try to read it from the local
  // package.json this logic used to sit in the cli/parse, but actually the cli
  // should be parsed first, then the user options (via nodemon.json) then
  // finally default down to pot shots at the directory via package.json
  if (!options.exec && !options.script) {
    var found = execFromPackage();
    if (found !== null) {
      if (found.exec) {
        options.exec = found.exec;
      }
      if (!options.script) {
        options.script = found.script;
      }
      if (Array.isArray(options.args) &&
        options.scriptPosition === null) {
        options.scriptPosition = options.args.length;
      }
    }
  }

// var options = utils.clone(nodemonOptions || {});
  script = path.basename(options.script || '');

var scriptExt = path.extname(script).slice(1);

var extension = options.ext;
  if (extension === undefined) {
    var isJS = scriptExt === 'js' || scriptExt === 'mjs';
    extension = (isJS || !scriptExt) ? 'js,mjs' : scriptExt;
    extension += ',json'; // Always watch JSON files
  }

var execDefined = !!options.exec;

// allows the user to simplify cli usage:
  // https://github.com/remy/nodemon/issues/195
  // but always give preference to the user defined argument
  if (!options.exec && execMap[scriptExt] !== undefined) {
    options.exec = execMap[scriptExt];
    execDefined = true;
  }

options.execArgs = nodemonOptions.execArgs || [];

if (Array.isArray(options.exec)) {
    options.execArgs = options.exec;
    options.exec = options.execArgs.shift();
  }

if (options.exec === undefined) {
    options.exec = 'node';
  } else {
    // allow variable substitution for {{filename}} and {{pwd}}
    var substitution = replace.bind(null, {
      filename: options.script,
      pwd: process.cwd(),
    });

var newExec = substitution(options.exec);
    if (newExec !== options.exec &&
      options.exec.indexOf('{{filename}}') !== -1) {
      options.script = null;
    }
    options.exec = newExec;

var newExecArgs = options.execArgs.map(substitution);
    if (newExecArgs.join('') !== options.execArgs.join('')) {
      options.execArgs = newExecArgs;
      delete options.script;
    }
  }

if (options.exec === 'node' && options.nodeArgs && options.nodeArgs.length) {
    options.execArgs = options.execArgs.concat(options.nodeArgs);
  }

// note: indexOf('coffee') handles both .coffee and .litcoffee
  if (!execDefined && options.exec === 'node' &&
    scriptExt.indexOf('coffee') !== -1) {
    options.exec = 'coffee';

// we need to get execArgs set before the script
    // for example, in `nodemon --debug my-script.coffee --my-flag`, debug is an
    // execArg, while my-flag is a script arg
    var leadingArgs = (options.args || []).splice(0, options.scriptPosition);
    options.execArgs = options.execArgs.concat(leadingArgs);
    options.scriptPosition = 0;

if (options.execArgs.length > 0) {
      // because this is the coffee executable, we need to combine the exec args
      // into a single argument after the nodejs flag
      options.execArgs = ['--nodejs', options.execArgs.join(' ')];
    }
  }

if (options.exec === 'coffee') {
    // don't override user specified extension tracking
    if (options.ext === undefined) {
      if (extension) { extension += ','; }
      extension += 'coffee,litcoffee';
    }

// because windows can't find 'coffee', it needs the real file 'coffee.cmd'
    if (utils.isWindows) {
      options.exec += '.cmd';
    }
  }

// allow users to make a mistake on the extension to monitor
  // converts .js, pug => js,pug
  // BIG NOTE: user can't do this: nodemon -e *.js
  // because the terminal will automatically expand the glob against
  // the file system :(
  extension = (extension.match(/[^,*\s]+/g) || [])
    .map(ext => ext.replace(/^\./, ''))
    .join(',');

options.ext = extension;

if (options.script) {
    options.script = expandScript(options.script,
      extension && ('.' + extension.split(',')[0]));
  }

options.env = {};
  // make sure it's an object (and since we don't have )
  if (({}).toString.apply(nodemonOptions.env) === '[object Object]') {
    options.env = utils.clone(nodemonOptions.env);
  } else if (nodemonOptions.env !== undefined) {
    throw new Error('nodemon env values must be an object: { PORT: 8000 }');
  }

return options;
}

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