write-file-atomic@3.0.3

5 files changed, 366 insertions, 0 deletions

diff --git a/node_modules/bin-links/node_modules/write-file-atomic/CHANGELOG.md b/node_modules/bin-links/node_modules/write-file-atomic/CHANGELOG.md
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+# 2.4.3
+
+* Ignore errors raised by `fs.closeSync` when cleaning up after a write
+  error.
+
+# 2.4.2
+
+* A pair of patches to fix some fd leaks.  We would leak fds with sync use
+  when errors occured and with async use any time fsync was not in use. (#34)
+
+# 2.4.1
+
+* Fix a bug where `signal-exit` instances would be leaked. This was fixed when addressing #35.
+
+# 2.4.0
+
+## Features
+
+* Allow chown and mode options to be set to false to disable the defaulting behavior. (#20)
+* Support passing encoding strings in options slot for compat with Node.js API. (#31)
+* Add support for running inside of worker threads (#37)
+
+## Fixes
+
+* Remove unneeded call when returning success (#36)
diff --git a/node_modules/bin-links/node_modules/write-file-atomic/LICENSE b/node_modules/bin-links/node_modules/write-file-atomic/LICENSE
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+Copyright (c) 2015, Rebecca Turner
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/node_modules/bin-links/node_modules/write-file-atomic/README.md b/node_modules/bin-links/node_modules/write-file-atomic/README.md
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+write-file-atomic
+-----------------
+
+This is an extension for node's `fs.writeFile` that makes its operation
+atomic and allows you set ownership (uid/gid of the file).
+
+### var writeFileAtomic = require('write-file-atomic')<br>writeFileAtomic(filename, data, [options], callback)
+
+* filename **String**
+* data **String** | **Buffer**
+* options **Object** | **String**
+  * chown **Object** default, uid & gid of existing file, if any
+    * uid **Number**
+    * gid **Number**
+  * encoding **String** | **Null** default = 'utf8'
+  * fsync **Boolean** default = true
+  * mode **Number** default, from existing file, if any
+  * Promise **Object** default = native Promise object
+* callback **Function**
+
+Atomically and asynchronously writes data to a file, replacing the file if it already
+exists.  data can be a string or a buffer.
+
+The file is initially named `filename + "." + murmurhex(__filename, process.pid, ++invocations)`.
+Note that `require('worker_threads').threadId` is used in addition to `process.pid` if running inside of a worker thread.
+If writeFile completes successfully then, if passed the **chown** option it will change
+the ownership of the file. Finally it renames the file back to the filename you specified. If
+it encounters errors at any of these steps it will attempt to unlink the temporary file and then
+pass the error back to the caller.
+If multiple writes are concurrently issued to the same file, the write operations are put into a queue and serialized in the order they were called, using Promises. Native promises are used by default, but you can inject your own promise-like object with the **Promise** option. Writes to different files are still executed in parallel.
+
+If provided, the **chown** option requires both **uid** and **gid** properties or else
+you'll get an error.  If **chown** is not specified it will default to using
+the owner of the previous file.  To prevent chown from being ran you can
+also pass `false`, in which case the file will be created with the current user's credentials.
+
+If **mode** is not specified, it will default to using the permissions from
+an existing file, if any.  Expicitly setting this to `false` remove this default, resulting
+in a file created with the system default permissions.
+
+If options is a String, it's assumed to be the **encoding** option. The **encoding** option is ignored if **data** is a buffer. It defaults to 'utf8'.
+
+If the **fsync** option is **false**, writeFile will skip the final fsync call.
+
+Example:
+
+```javascript
+writeFileAtomic('message.txt', 'Hello Node', {chown:{uid:100,gid:50}}, function (err) {
+  if (err) throw err;
+  console.log('It\'s saved!');
+});
+```
+
+### var writeFileAtomicSync = require('write-file-atomic').sync<br>writeFileAtomicSync(filename, data, [options])
+
+The synchronous version of **writeFileAtomic**.
diff --git a/node_modules/bin-links/node_modules/write-file-atomic/index.js b/node_modules/bin-links/node_modules/write-file-atomic/index.js
new file mode 100644
index 000000000..64ae987c0
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+++ b/node_modules/bin-links/node_modules/write-file-atomic/index.js
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+'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) {
+      try {
+        fs.closeSync(fd)
+      } catch (ex) {
+        // ignore close errors at this stage, error may have closed fd already.
+      }
+    }
+    removeOnExitHandler()
+    cleanup()
+    throw err
+  }
+}
diff --git a/node_modules/bin-links/node_modules/write-file-atomic/package.json b/node_modules/bin-links/node_modules/write-file-atomic/package.json
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+{
+  "name": "write-file-atomic",
+  "version": "2.4.3",
+  "description": "Write files in an atomic fashion w/configurable ownership",
+  "main": "index.js",
+  "scripts": {
+    "test": "standard && tap --100 test/*.js",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:iarna/write-file-atomic.git"
+  },
+  "keywords": [
+    "writeFile",
+    "atomic"
+  ],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org)",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/iarna/write-file-atomic/issues"
+  },
+  "homepage": "https://github.com/iarna/write-file-atomic",
+  "dependencies": {
+    "graceful-fs": "^4.1.11",
+    "imurmurhash": "^0.1.4",
+    "signal-exit": "^3.0.2"
+  },
+  "devDependencies": {
+    "mkdirp": "^0.5.1",
+    "require-inject": "^1.4.0",
+    "rimraf": "^2.5.4",
+    "standard": "^12.0.1",
+    "tap": "^12.1.3"
+  },
+  "files": [
+    "index.js"
+  ]
+}