From 3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Sun, 6 Oct 2019 21:37:45 +0200 Subject: build: Add some required modules for node --- node_modules/fs.realpath/old.js | 303 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 303 insertions(+) create mode 100644 node_modules/fs.realpath/old.js (limited to 'node_modules/fs.realpath/old.js') diff --git a/node_modules/fs.realpath/old.js b/node_modules/fs.realpath/old.js new file mode 100644 index 0000000..b40305e --- /dev/null +++ b/node_modules/fs.realpath/old.js @@ -0,0 +1,303 @@ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var pathModule = require('path'); +var isWindows = process.platform === 'win32'; +var fs = require('fs'); + +// JavaScript implementation of realpath, ported from node pre-v6 + +var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG); + +function rethrow() { + // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and + // is fairly slow to generate. + var callback; + if (DEBUG) { + var backtrace = new Error; + callback = debugCallback; + } else + callback = missingCallback; + + return callback; + + function debugCallback(err) { + if (err) { + backtrace.message = err.message; + err = backtrace; + missingCallback(err); + } + } + + function missingCallback(err) { + if (err) { + if (process.throwDeprecation) + throw err; // Forgot a callback but don't know where? Use NODE_DEBUG=fs + else if (!process.noDeprecation) { + var msg = 'fs: missing callback ' + (err.stack || err.message); + if (process.traceDeprecation) + console.trace(msg); + else + console.error(msg); + } + } + } +} + +function maybeCallback(cb) { + return typeof cb === 'function' ? cb : rethrow(); +} + +var normalize = pathModule.normalize; + +// Regexp that finds the next partion of a (partial) path +// result is [base_with_slash, base], e.g. ['somedir/', 'somedir'] +if (isWindows) { + var nextPartRe = /(.*?)(?:[\/\\]+|$)/g; +} else { + var nextPartRe = /(.*?)(?:[\/]+|$)/g; +} + +// Regex to find the device root, including trailing slash. E.g. 'c:\\'. +if (isWindows) { + var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/; +} else { + var splitRootRe = /^[\/]*/; +} + +exports.realpathSync = function realpathSync(p, cache) { + // make p is absolute + p = pathModule.resolve(p); + + if (cache && Object.prototype.hasOwnProperty.call(cache, p)) { + return cache[p]; + } + + var original = p, + seenLinks = {}, + knownHard = {}; + + // current character position in p + var pos; + // the partial path so far, including a trailing slash if any + var current; + // the partial path without a trailing slash (except when pointing at a root) + var base; + // the partial path scanned in the previous round, with slash + var previous; + + start(); + + function start() { + // Skip over roots + var m = splitRootRe.exec(p); + pos = m[0].length; + current = m[0]; + base = m[0]; + previous = ''; + + // On windows, check that the root exists. On unix there is no need. + if (isWindows && !knownHard[base]) { + fs.lstatSync(base); + knownHard[base] = true; + } + } + + // walk down the path, swapping out linked pathparts for their real + // values + // NB: p.length changes. + while (pos < p.length) { + // find the next part + nextPartRe.lastIndex = pos; + var result = nextPartRe.exec(p); + previous = current; + current += result[0]; + base = previous + result[1]; + pos = nextPartRe.lastIndex; + + // continue if not a symlink + if (knownHard[base] || (cache && cache[base] === base)) { + continue; + } + + var resolvedLink; + if (cache && Object.prototype.hasOwnProperty.call(cache, base)) { + // some known symbolic link. no need to stat again. + resolvedLink = cache[base]; + } else { + var stat = fs.lstatSync(base); + if (!stat.isSymbolicLink()) { + knownHard[base] = true; + if (cache) cache[base] = base; + continue; + } + + // read the link if it wasn't read before + // dev/ino always return 0 on windows, so skip the check. + var linkTarget = null; + if (!isWindows) { + var id = stat.dev.toString(32) + ':' + stat.ino.toString(32); + if (seenLinks.hasOwnProperty(id)) { + linkTarget = seenLinks[id]; + } + } + if (linkTarget === null) { + fs.statSync(base); + linkTarget = fs.readlinkSync(base); + } + resolvedLink = pathModule.resolve(previous, linkTarget); + // track this, if given a cache. + if (cache) cache[base] = resolvedLink; + if (!isWindows) seenLinks[id] = linkTarget; + } + + // resolve the link, then start over + p = pathModule.resolve(resolvedLink, p.slice(pos)); + start(); + } + + if (cache) cache[original] = p; + + return p; +}; + + +exports.realpath = function realpath(p, cache, cb) { + if (typeof cb !== 'function') { + cb = maybeCallback(cache); + cache = null; + } + + // make p is absolute + p = pathModule.resolve(p); + + if (cache && Object.prototype.hasOwnProperty.call(cache, p)) { + return process.nextTick(cb.bind(null, null, cache[p])); + } + + var original = p, + seenLinks = {}, + knownHard = {}; + + // current character position in p + var pos; + // the partial path so far, including a trailing slash if any + var current; + // the partial path without a trailing slash (except when pointing at a root) + var base; + // the partial path scanned in the previous round, with slash + var previous; + + start(); + + function start() { + // Skip over roots + var m = splitRootRe.exec(p); + pos = m[0].length; + current = m[0]; + base = m[0]; + previous = ''; + + // On windows, check that the root exists. On unix there is no need. + if (isWindows && !knownHard[base]) { + fs.lstat(base, function(err) { + if (err) return cb(err); + knownHard[base] = true; + LOOP(); + }); + } else { + process.nextTick(LOOP); + } + } + + // walk down the path, swapping out linked pathparts for their real + // values + function LOOP() { + // stop if scanned past end of path + if (pos >= p.length) { + if (cache) cache[original] = p; + return cb(null, p); + } + + // find the next part + nextPartRe.lastIndex = pos; + var result = nextPartRe.exec(p); + previous = current; + current += result[0]; + base = previous + result[1]; + pos = nextPartRe.lastIndex; + + // continue if not a symlink + if (knownHard[base] || (cache && cache[base] === base)) { + return process.nextTick(LOOP); + } + + if (cache && Object.prototype.hasOwnProperty.call(cache, base)) { + // known symbolic link. no need to stat again. + return gotResolvedLink(cache[base]); + } + + return fs.lstat(base, gotStat); + } + + function gotStat(err, stat) { + if (err) return cb(err); + + // if not a symlink, skip to the next path part + if (!stat.isSymbolicLink()) { + knownHard[base] = true; + if (cache) cache[base] = base; + return process.nextTick(LOOP); + } + + // stat & read the link if not read before + // call gotTarget as soon as the link target is known + // dev/ino always return 0 on windows, so skip the check. + if (!isWindows) { + var id = stat.dev.toString(32) + ':' + stat.ino.toString(32); + if (seenLinks.hasOwnProperty(id)) { + return gotTarget(null, seenLinks[id], base); + } + } + fs.stat(base, function(err) { + if (err) return cb(err); + + fs.readlink(base, function(err, target) { + if (!isWindows) seenLinks[id] = target; + gotTarget(err, target); + }); + }); + } + + function gotTarget(err, target, base) { + if (err) return cb(err); + + var resolvedLink = pathModule.resolve(previous, target); + if (cache) cache[base] = resolvedLink; + gotResolvedLink(resolvedLink); + } + + function gotResolvedLink(resolvedLink) { + // resolve the link, then start over + p = pathModule.resolve(resolvedLink, p.slice(pos)); + start(); + } +}; -- cgit v1.2.3