chore(package): re-init package with commitizen and standard-release

node_modules/npm-path/find-prefix.js

@@ -0,0 +1,74 @@
+'use strict';
+
+var fs = require('fs');
+var path = require('path');
+
+module.exports = function (options, cb) {
+  return findPrefix(options.cwd, options.isSync, cb);
+};
+
+function readdir(p, isSync, fn) {
+  var val = null;
+  if (isSync) {
+    try {
+      val = fs.readdirSync(p);
+    } catch (err) {
+      return fn(err);
+    }
+
+    return fn(null, val);
+  }
+
+  return fs.readdir(p, fn);
+}
+
+// try to find the most reasonable prefix to use
+function findPrefix(p, isSync, cb_) {
+  function cb(err, p) {
+    if (isSync) return cb_(err, p);
+    process.nextTick(function () {
+      cb_(err, p);
+    });
+  }
+
+  p = path.resolve(p);
+  // if there's no node_modules folder, then
+  // walk up until we hopefully find one.
+  // if none anywhere, then use cwd.
+  var walkedUp = false;
+  while (path.basename(p) === 'node_modules') {
+    p = path.dirname(p);
+    walkedUp = true;
+  }
+  if (walkedUp) return cb(null, p);
+
+  findPrefix_(p, p, isSync, cb);
+}
+
+function findPrefix_(p, original, isSync, cb) {
+  if (p === '/' || process.platform === 'win32' && p.match(/^[a-zA-Z]:(\\|\/)?$/)) {
+    return cb(null, original);
+  }
+
+  readdir(p, isSync, function (err, files) {
+    // an error right away is a bad sign.
+    // unless the prefix was simply a non
+    // existent directory.
+    if (err && p === original) {
+      if (err.code === 'ENOENT') return cb(null, original);
+      return cb(err);
+    }
+
+    // walked up too high or something.
+    if (err) return cb(null, original);
+
+    if (files.indexOf('node_modules') !== -1 || files.indexOf('package.json') !== -1) {
+      return cb(null, p);
+    }
+
+    var d = path.dirname(p);
+    if (d === p) return cb(null, original);
+
+    return findPrefix_(d, original, isSync, cb);
+  });
+}