gorillajs/app/plugins/ssl/node_modules/fs-extra/lib/ensure/link.js

A smart development environment designed to easily install and neatly manage web applications. Gorilla JS frees you from the repetitive daily tasks like apps installation, database management, creation of virtual environment, server configuration… And it

var path = require('path')
var fs = require('graceful-fs')
var mkdir = require('../mkdirs')

function createLink (srcpath, dstpath, callback) {
  function makeLink (srcpath, dstpath) {
    fs.link(srcpath, dstpath, function (err) {
      if (err) return callback(err)
      callback(null)
    })
  }

  fs.exists(dstpath, function (destinationExists) {
    if (destinationExists) return callback(null)
    fs.lstat(srcpath, function (err, stat) {
      if (err) {
        err.message = err.message.replace('lstat', 'ensureLink')
        return callback(err)
      }

      var dir = path.dirname(dstpath)
      fs.exists(dir, function (dirExists) {
        if (dirExists) return makeLink(srcpath, dstpath)
        mkdir.mkdirs(dir, function (err) {
          if (err) return callback(err)
          makeLink(srcpath, dstpath)
        })
      })
    })
  })
}

function createLinkSync (srcpath, dstpath, callback) {
  var destinationExists = fs.existsSync(dstpath)
  if (destinationExists) return undefined

  try {
    fs.lstatSync(srcpath)
  } catch (err) {
    err.message = err.message.replace('lstat', 'ensureLink')
    throw err
  }

  var dir = path.dirname(dstpath)
  var dirExists = fs.existsSync(dir)
  if (dirExists) return fs.linkSync(srcpath, dstpath)
  mkdir.mkdirsSync(dir)

  return fs.linkSync(srcpath, dstpath)
}

module.exports = {
  createLink: createLink,
  createLinkSync: createLinkSync,
  // alias
  ensureLink: createLink,
  ensureLinkSync: createLinkSync
}