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82 lines
2.5 KiB
82 lines
2.5 KiB
'use strict' |
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const u = require('universalify').fromCallback |
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const path = require('path') |
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const fs = require('../fs') |
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const _mkdirs = require('../mkdirs') |
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const mkdirs = _mkdirs.mkdirs |
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const mkdirsSync = _mkdirs.mkdirsSync |
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const _symlinkPaths = require('./symlink-paths') |
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const symlinkPaths = _symlinkPaths.symlinkPaths |
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const symlinkPathsSync = _symlinkPaths.symlinkPathsSync |
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const _symlinkType = require('./symlink-type') |
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const symlinkType = _symlinkType.symlinkType |
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const symlinkTypeSync = _symlinkType.symlinkTypeSync |
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const pathExists = require('../path-exists').pathExists |
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const { areIdentical } = require('../util/stat') |
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function createSymlink (srcpath, dstpath, type, callback) { |
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callback = (typeof type === 'function') ? type : callback |
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type = (typeof type === 'function') ? false : type |
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fs.lstat(dstpath, (err, stats) => { |
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if (!err && stats.isSymbolicLink()) { |
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Promise.all([ |
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fs.stat(srcpath), |
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fs.stat(dstpath) |
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]).then(([srcStat, dstStat]) => { |
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if (areIdentical(srcStat, dstStat)) return callback(null) |
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_createSymlink(srcpath, dstpath, type, callback) |
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}) |
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} else _createSymlink(srcpath, dstpath, type, callback) |
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}) |
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} |
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function _createSymlink (srcpath, dstpath, type, callback) { |
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symlinkPaths(srcpath, dstpath, (err, relative) => { |
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if (err) return callback(err) |
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srcpath = relative.toDst |
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symlinkType(relative.toCwd, type, (err, type) => { |
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if (err) return callback(err) |
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const dir = path.dirname(dstpath) |
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pathExists(dir, (err, dirExists) => { |
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if (err) return callback(err) |
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if (dirExists) return fs.symlink(srcpath, dstpath, type, callback) |
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mkdirs(dir, err => { |
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if (err) return callback(err) |
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fs.symlink(srcpath, dstpath, type, callback) |
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}) |
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}) |
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}) |
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}) |
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} |
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function createSymlinkSync (srcpath, dstpath, type) { |
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let stats |
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try { |
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stats = fs.lstatSync(dstpath) |
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} catch {} |
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if (stats && stats.isSymbolicLink()) { |
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const srcStat = fs.statSync(srcpath) |
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const dstStat = fs.statSync(dstpath) |
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if (areIdentical(srcStat, dstStat)) return |
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} |
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const relative = symlinkPathsSync(srcpath, dstpath) |
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srcpath = relative.toDst |
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type = symlinkTypeSync(relative.toCwd, type) |
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const dir = path.dirname(dstpath) |
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const exists = fs.existsSync(dir) |
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if (exists) return fs.symlinkSync(srcpath, dstpath, type) |
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mkdirsSync(dir) |
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return fs.symlinkSync(srcpath, dstpath, type) |
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} |
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module.exports = { |
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createSymlink: u(createSymlink), |
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createSymlinkSync |
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}
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