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mohemmionic5/Mohem/node_modules_/run/run.js

180 lines
4.3 KiB
JavaScript

// https://github.com/DTrejo/run.js
// Used to run code in a directory and rerun it if any files are changed.
// Usage: ./cli.js servercode.js
// Where servercode.js is whatever js file you want node to run
// Excludes filetypes in the ignoreExtensions array
var util = require('util')
, fs = require('fs')
, path = require('path')
, spawn = require('child_process').spawn
, minimatch = require('minimatch')
, child // child process which runs the user's code
, ignoreExtensions = ['.dirtydb', '.db', '.styl', '.css']
, ignoreFiles = [ 'node_modules' ]
// switched out for coffee depending on extension.
, node = 'node'
, args = process.argv
, signal = null
//
// Tell user the correct usage if they miss-type
//
if (args.length <= 2) {
console.log('Found ' + (args.length - 2)
, 'argument(s). Expected one or more.')
console.log(
'Usage: \n runjs [SIGNAL] somecode.js [--args]\n'
+ 'Ex: \n runjs somecode.js --args'
+ ' \n runjs SIGUSR2 somecode.js --args\n'
)
process.exit(1)
}
//
// If we define a signal, parse it out and then remove from the array
//
if (args[2].match(/^SIG/)) {
signal = args.splice(2, 1)[0];
}
//
// use `coffee` if the file ends with .coffee
//
if (args[2].match(/\.coffee$/)) node = 'coffee'
//
// Exclude files based on .gitignore
//
if (fs.existsSync('.gitignore')) {
ignoreFiles = ignoreFiles.concat(fs.readFileSync('.gitignore', 'utf8')
.split('\n')
.filter(function(s) {
s = s.trim()
return s.indexOf('#') !== 0 && s.length > 0
})
)
}
console.log('Watching', path.resolve('./'), 'and all sub-directories not'
, 'excluded by your .gitignore. Will not monitor dotfiles.')
watchFiles(parseFolder('.'), restart) // watch all files, restart if problem
run()
process.stdin.setEncoding('utf8')
// executes the command given by the second argument
;function run() {
// run the server
var childArgs = args.slice(2) || []
child = spawn(node, childArgs)
// let the child's output escape.
child.stdout.on('data', function(data) {
process.stdout.write(data)
})
child.stderr.on('data', function(error) {
process.stdout.write(error)
})
// let the user's typing get to the child
process.stdin.pipe(child.stdin)
console.log('\nStarting: ' + childArgs.join(' '))
}
;function restart() {
// kill if running
if (child) {
if (signal) {
child.kill(signal)
} else {
child.kill()
run()
}
} else {
run()
}
}
/**
* Parses a folder recursively and returns a list of files
*
* @param root {String}
* @return {Array}
*/
;function parseFolder(root) {
var fileList = []
, files = fs.readdirSync(root)
files.forEach(function(file) {
var pathname = path.join(root, file)
, stat = fs.lstatSync(pathname)
if (stat === undefined) return
// add files to file list
if (!stat.isDirectory()) {
fileList.push(pathname)
// recur if directory
} else {
// don't watch folders matched by .gitignore regexes
for (var i = 0, pattern; pattern = ignoreFiles[i]; i++) {
if (minimatch(file, pattern)) {
console.log('Found & ignored', './' + pathname, '; is listed in .gitignore')
return
}
}
fileList = fileList.concat(parseFolder(pathname))
}
})
return fileList
}
/**
* Add change listener to files, which is called whenever one changes.
* Ignores certain extensions.
*
* @param files {Array}
* @param callback {function}
*/
;function watchFiles(files, callback) {
var config = { persistent: true, interval: 25 }
files.forEach(function (file) {
// don't watch dotfiles.
if (file.indexOf('.') === 0) return
// don't watch things with ignored extensions
var ext = path.extname(file)
if (ignoreExtensions.indexOf(ext) !== -1) {
console.log('Found & ignored', './' + file, '; has ignored extension')
return
}
// don't watch files matched by .gitignore regexes
for (var i = 0, pattern; pattern = ignoreFiles[i]; i++) {
if (minimatch(file, pattern)) {
console.log('Found & ignored', './' + file, '; is listed in .gitignore')
return
}
}
// if any file changes, run the callback
fs.watchFile(file, config, function (curr, prev) {
if ((curr.mtime + '') != (prev.mtime + '')) {
console.log('./' + file + ' changed')
if (callback) callback()
}
})
})
}