diff options
Diffstat (limited to 'deps/npm/lib/utils/link.js')
-rw-r--r-- | deps/npm/lib/utils/link.js | 71 |
1 files changed, 3 insertions, 68 deletions
diff --git a/deps/npm/lib/utils/link.js b/deps/npm/lib/utils/link.js index 15331740a4..c264248144 100644 --- a/deps/npm/lib/utils/link.js +++ b/deps/npm/lib/utils/link.js @@ -1,73 +1,8 @@ module.exports = link -link.ifExists = linkIfExists -var fs = require('graceful-fs') -var chain = require('slide').chain -var mkdir = require('mkdirp') -var rm = require('./gently-rm.js') -var path = require('path') -var npm = require('../npm.js') - -function linkIfExists (from, to, gently, cb) { - fs.stat(from, function (er) { - if (er) return cb() - fs.readlink(to, function (er, fromOnDisk) { - // if the link already exists and matches what we would do, - // we don't need to do anything - if (!er) { - var toDir = path.dirname(to) - var absoluteFrom = path.resolve(toDir, from) - var absoluteFromOnDisk = path.resolve(toDir, fromOnDisk) - if (absoluteFrom === absoluteFromOnDisk) return cb() - } - link(from, to, gently, cb) - }) - }) -} - -function resolveIfSymlink (maybeSymlinkPath, cb) { - fs.lstat(maybeSymlinkPath, function (err, stat) { - if (err) return cb.apply(this, arguments) - if (!stat.isSymbolicLink()) return cb(null, maybeSymlinkPath) - fs.readlink(maybeSymlinkPath, cb) - }) -} - -function ensureFromIsNotSource (from, to, cb) { - resolveIfSymlink(from, function (err, fromDestination) { - if (err) return cb.apply(this, arguments) - if (path.resolve(path.dirname(from), fromDestination) === path.resolve(to)) { - return cb(new Error('Link target resolves to the same directory as link source: ' + to)) - } - cb.apply(this, arguments) - }) -} +var gentleFS = require('gentle-fs') +var gentleFSOpts = require('../config/gentle-fs.js') function link (from, to, gently, abs, cb) { - if (typeof cb !== 'function') { - cb = abs - abs = false - } - if (typeof cb !== 'function') { - cb = gently - gently = null - } - if (npm.config.get('force')) gently = false - - to = path.resolve(to) - var toDir = path.dirname(to) - var absTarget = path.resolve(toDir, from) - var relativeTarget = path.relative(toDir, absTarget) - var target = abs ? absTarget : relativeTarget - - chain( - [ - [ensureFromIsNotSource, absTarget, to], - [fs, 'stat', absTarget], - [rm, to, gently, path.dirname(to)], - [mkdir, path.dirname(to)], - [fs, 'symlink', target, to, 'junction'] - ], - cb - ) + return gentleFS.link(from, to, gentleFSOpts(gently, undefined, abs), cb) } |