[utils] [new] create internal replacement for pkg-up and read-pkg-up

Author: mgwalker

utils/CHANGELOG.md

@@ -8,6 +8,7 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 ### Added
 - `fileExistsWithCaseSync`: add `strict` argument ([#1262], thanks [@sergei-startsev])
 - add `visit`, to support dynamic imports ([#1660], [#2212], thanks [@maxkomarychev], [@aladdin-add], [@Hypnosphi])
+- create internal replacement for `pkg-up` and `read-pkg-up` ([#2047], [@mgwalker])
 
 ## v2.6.2 - 2021-08-08
 
@@ -96,6 +97,7 @@ Yanked due to critical issue with cache key resulting from #839.
 
 [#2212]: https://github.com/import-js/eslint-plugin-import/pull/2212
 [#2160]: https://github.com/import-js/eslint-plugin-import/pull/2160
+[#2047]: https://github.com/import-js/eslint-plugin-import/pull/2047
 [#2026]: https://github.com/import-js/eslint-plugin-import/pull/2026
 [#1786]: https://github.com/import-js/eslint-plugin-import/pull/1786
 [#1671]: https://github.com/import-js/eslint-plugin-import/pull/1671
@@ -121,15 +123,15 @@ Yanked due to critical issue with cache key resulting from #839.
 [@brettz9]: https://github.com/brettz9
 [@christophercurrie]: https://github.com/christophercurrie
 [@hulkish]: https://github.com/hulkish
+[@Hypnosphi]: https://github.com/Hypnosphi
 [@iamnapo]: https://github.com/iamnapo
 [@JounQin]: https://github.com/JounQin
 [@kaiyoma]: https://github.com/kaiyoma
 [@manuth]: https://github.com/manuth
+[@maxkomarychev]: https://github.com/maxkomarychev
+[@mgwalker]: https://github.com/mgwalker
 [@pmcelhaney]: https://github.com/pmcelhaney
 [@sergei-startsev]: https://github.com/sergei-startsev
 [@sompylasar]: https://github.com/sompylasar
 [@timkraut]: https://github.com/timkraut
 [@vikr01]: https://github.com/vikr01
-[@maxkomarychev]: https://github.com/maxkomarychev
-[@aladdin-add]: https://github.com/aladdin-add
-[@Hypnosphi]: https://github.com/Hypnosphi

utils/package.json

@@ -27,6 +27,7 @@
   "homepage": "https://github.com/import-js/eslint-plugin-import#readme",
   "dependencies": {
     "debug": "^3.2.7",
+    "find-up": "^2.1.0",
     "pkg-dir": "^2.0.0"
   }
 }

utils/pkgUp.js

@@ -0,0 +1,8 @@
+'use strict';
+exports.__esModule = true;
+
+const findUp = require('find-up');
+
+exports.default = function pkgUp(opts) {
+  return findUp.sync('package.json', opts);
+};

utils/readPkgUp.js

@@ -0,0 +1,52 @@
+'use strict';
+exports.__esModule = true;
+
+const fs = require('fs');
+const pkgUp = require('./pkgUp').default;
+
+function stripBOM(str) {
+  return str.replace(/^\uFEFF/, '');
+}
+
+/**
+ * Derived significantly from [email protected]. See license below.
+ * 
+ * @copyright Sindre Sorhus
+ * MIT License
+ *
+ * Copyright (c) Sindre Sorhus <[email protected]> (https://sindresorhus.com)
+ * 
+ * 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.
+ */
+exports.default = function readPkgUp(opts) {
+  const fp = pkgUp(opts.cwd);
+
+  if (!fp) {
+    return {};
+  }
+
+  try {
+    return {
+      pkg: JSON.parse(stripBOM(fs.readFileSync(fp, { encoding: 'utf-8' }))),
+      path: fp,
+    };
+  } catch (e) {
+    return {};
+  }
+};