diff options
Diffstat (limited to 'deps/node/deps/npm/node_modules/write-file-atomic/index.js')
-rw-r--r-- | deps/node/deps/npm/node_modules/write-file-atomic/index.js | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/deps/node/deps/npm/node_modules/write-file-atomic/index.js b/deps/node/deps/npm/node_modules/write-file-atomic/index.js deleted file mode 100644 index fe9fdfb9..00000000 --- a/deps/node/deps/npm/node_modules/write-file-atomic/index.js +++ /dev/null @@ -1,233 +0,0 @@ -'use strict' -module.exports = writeFile -module.exports.sync = writeFileSync -module.exports._getTmpname = getTmpname // for testing -module.exports._cleanupOnExit = cleanupOnExit - -var fs = require('graceful-fs') -var MurmurHash3 = require('imurmurhash') -var onExit = require('signal-exit') -var path = require('path') -var activeFiles = {} - -// if we run inside of a worker_thread, `process.pid` is not unique -/* istanbul ignore next */ -var threadId = (function getId () { - try { - var workerThreads = require('worker_threads') - - /// if we are in main thread, this is set to `0` - return workerThreads.threadId - } catch (e) { - // worker_threads are not available, fallback to 0 - return 0 - } -})() - -var invocations = 0 -function getTmpname (filename) { - return filename + '.' + - MurmurHash3(__filename) - .hash(String(process.pid)) - .hash(String(threadId)) - .hash(String(++invocations)) - .result() -} - -function cleanupOnExit (tmpfile) { - return function () { - try { - fs.unlinkSync(typeof tmpfile === 'function' ? tmpfile() : tmpfile) - } catch (_) {} - } -} - -function writeFile (filename, data, options, callback) { - if (options) { - if (options instanceof Function) { - callback = options - options = {} - } else if (typeof options === 'string') { - options = { encoding: options } - } - } else { - options = {} - } - - var Promise = options.Promise || global.Promise - var truename - var fd - var tmpfile - /* istanbul ignore next -- The closure only gets called when onExit triggers */ - var removeOnExitHandler = onExit(cleanupOnExit(() => tmpfile)) - var absoluteName = path.resolve(filename) - - new Promise(function serializeSameFile (resolve) { - // make a queue if it doesn't already exist - if (!activeFiles[absoluteName]) activeFiles[absoluteName] = [] - - activeFiles[absoluteName].push(resolve) // add this job to the queue - if (activeFiles[absoluteName].length === 1) resolve() // kick off the first one - }).then(function getRealPath () { - return new Promise(function (resolve) { - fs.realpath(filename, function (_, realname) { - truename = realname || filename - tmpfile = getTmpname(truename) - resolve() - }) - }) - }).then(function stat () { - return new Promise(function stat (resolve) { - if (options.mode && options.chown) resolve() - else { - // Either mode or chown is not explicitly set - // Default behavior is to copy it from original file - fs.stat(truename, function (err, stats) { - if (err || !stats) resolve() - else { - options = Object.assign({}, options) - - if (options.mode == null) { - options.mode = stats.mode - } - if (options.chown == null && process.getuid) { - options.chown = { uid: stats.uid, gid: stats.gid } - } - resolve() - } - }) - } - }) - }).then(function thenWriteFile () { - return new Promise(function (resolve, reject) { - fs.open(tmpfile, 'w', options.mode, function (err, _fd) { - fd = _fd - if (err) reject(err) - else resolve() - }) - }) - }).then(function write () { - return new Promise(function (resolve, reject) { - if (Buffer.isBuffer(data)) { - fs.write(fd, data, 0, data.length, 0, function (err) { - if (err) reject(err) - else resolve() - }) - } else if (data != null) { - fs.write(fd, String(data), 0, String(options.encoding || 'utf8'), function (err) { - if (err) reject(err) - else resolve() - }) - } else resolve() - }) - }).then(function syncAndClose () { - return new Promise(function (resolve, reject) { - if (options.fsync !== false) { - fs.fsync(fd, function (err) { - if (err) fs.close(fd, () => reject(err)) - else fs.close(fd, resolve) - }) - } else { - fs.close(fd, resolve) - } - }) - }).then(function chown () { - fd = null - if (options.chown) { - return new Promise(function (resolve, reject) { - fs.chown(tmpfile, options.chown.uid, options.chown.gid, function (err) { - if (err) reject(err) - else resolve() - }) - }) - } - }).then(function chmod () { - if (options.mode) { - return new Promise(function (resolve, reject) { - fs.chmod(tmpfile, options.mode, function (err) { - if (err) reject(err) - else resolve() - }) - }) - } - }).then(function rename () { - return new Promise(function (resolve, reject) { - fs.rename(tmpfile, truename, function (err) { - if (err) reject(err) - else resolve() - }) - }) - }).then(function success () { - removeOnExitHandler() - callback() - }, function fail (err) { - return new Promise(resolve => { - return fd ? fs.close(fd, resolve) : resolve() - }).then(() => { - removeOnExitHandler() - fs.unlink(tmpfile, function () { - callback(err) - }) - }) - }).then(function checkQueue () { - activeFiles[absoluteName].shift() // remove the element added by serializeSameFile - if (activeFiles[absoluteName].length > 0) { - activeFiles[absoluteName][0]() // start next job if one is pending - } else delete activeFiles[absoluteName] - }) -} - -function writeFileSync (filename, data, options) { - if (typeof options === 'string') options = { encoding: options } - else if (!options) options = {} - try { - filename = fs.realpathSync(filename) - } catch (ex) { - // it's ok, it'll happen on a not yet existing file - } - var tmpfile = getTmpname(filename) - - if (!options.mode || !options.chown) { - // Either mode or chown is not explicitly set - // Default behavior is to copy it from original file - try { - var stats = fs.statSync(filename) - options = Object.assign({}, options) - if (!options.mode) { - options.mode = stats.mode - } - if (!options.chown && process.getuid) { - options.chown = { uid: stats.uid, gid: stats.gid } - } - } catch (ex) { - // ignore stat errors - } - } - - var fd - var cleanup = cleanupOnExit(tmpfile) - var removeOnExitHandler = onExit(cleanup) - - try { - - fd = fs.openSync(tmpfile, 'w', options.mode) - if (Buffer.isBuffer(data)) { - fs.writeSync(fd, data, 0, data.length, 0) - } else if (data != null) { - fs.writeSync(fd, String(data), 0, String(options.encoding || 'utf8')) - } - if (options.fsync !== false) { - fs.fsyncSync(fd) - } - fs.closeSync(fd) - if (options.chown) fs.chownSync(tmpfile, options.chown.uid, options.chown.gid) - if (options.mode) fs.chmodSync(tmpfile, options.mode) - fs.renameSync(tmpfile, filename) - removeOnExitHandler() - } catch (err) { - if (fd) fs.closeSync(fd) - removeOnExitHandler() - cleanup() - throw err - } -} |