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'use strict'
const u = require('universalify').fromCallback
const path = require('path')
const fs = require('graceful-fs')
const _mkdirs = require('../mkdirs')
const mkdirs = _mkdirs.mkdirs
const mkdirsSync = _mkdirs.mkdirsSync
const _symlinkPaths = require('./symlink-paths')
const symlinkPaths = _symlinkPaths.symlinkPaths
const symlinkPathsSync = _symlinkPaths.symlinkPathsSync
const _symlinkType = require('./symlink-type')
const symlinkType = _symlinkType.symlinkType
const symlinkTypeSync = _symlinkType.symlinkTypeSync
const pathExists = require('../path-exists').pathExists
function createSymlink (srcpath, dstpath, type, callback) {
callback = (typeof type === 'function') ? type : callback
type = (typeof type === 'function') ? false : type
pathExists(dstpath, (err, destinationExists) => {
if (err) return callback(err)
if (destinationExists) return callback(null)
symlinkPaths(srcpath, dstpath, (err, relative) => {
if (err) return callback(err)
srcpath = relative.toDst
symlinkType(relative.toCwd, type, (err, type) => {
if (err) return callback(err)
const dir = path.dirname(dstpath)
pathExists(dir, (err, dirExists) => {
if (err) return callback(err)
if (dirExists) return fs.symlink(srcpath, dstpath, type, callback)
mkdirs(dir, err => {
if (err) return callback(err)
fs.symlink(srcpath, dstpath, type, callback)
})
})
})
})
})
}
function createSymlinkSync (srcpath, dstpath, type, callback) {
callback = (typeof type === 'function') ? type : callback
type = (typeof type === 'function') ? false : type
const destinationExists = fs.existsSync(dstpath)
if (destinationExists) return undefined
const relative = symlinkPathsSync(srcpath, dstpath)
srcpath = relative.toDst
type = symlinkTypeSync(relative.toCwd, type)
const dir = path.dirname(dstpath)
const exists = fs.existsSync(dir)
if (exists) return fs.symlinkSync(srcpath, dstpath, type)
mkdirsSync(dir)
return fs.symlinkSync(srcpath, dstpath, type)
}
module.exports = {
createSymlink: u(createSymlink),
createSymlinkSync
}
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