Addition of eslint-plugin

eslint-plugin/.eslintrc.js

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+// This is a workaround for https://github.com/eslint/eslint/issues/3458
+require("@rushstack/eslint-config/patch-eslint6");
+
+module.exports = {
+  extends: [ "@rushstack/eslint-config" ],
+  parserOptions: { tsconfigRootDir: __dirname },
+};

eslint-plugin/.npmignore

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+# Ignore everything by default
+**
+
+# Use negative patterns to bring back the specific things we want to publish
+!/bin/**
+!/lib/**
+!/dist/**
+!ThirdPartyNotice.txt
+
+# Ignore certain files in the above folder
+/dist/*.stats.*
+/lib/**/test/*
+/lib/**/__tests__/*
+
+# NOTE: These don't need to be specified, because NPM includes them automatically.
+#
+# package.json
+# README (and its variants)
+# CHANGELOG (and its variants)
+# LICENSE / LICENCE
+
+## Project specific definitions
+# -----------------------------
+
+# (Add your exceptions here)

eslint-plugin/.npmrc

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+registry=https://registry.npmjs.org/
+always-auth=false

eslint-plugin/LICENSE

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+Copyright (c) Microsoft Corporation. All rights reserved.
+
+MIT License
+
+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.

eslint-plugin/build.js

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+'use strict';
+
+const child_process = require('child_process');
+const path = require('path');
+
+const production = process.argv.indexOf('--production') >= 0;
+const baseDir = __dirname;
+
+process.chdir(baseDir);
+
+process.exitCode = 1;
+try {
+  child_process.execSync(path.join(baseDir, 'node_modules/.bin/rimraf')
+    + ' ./lib/', { stdio: 'inherit' });
+
+  console.log('-- TYPESCRIPT --\n');
+  child_process.execSync(path.join(baseDir, 'node_modules/.bin/tsc'), { stdio: 'inherit' });
+
+  console.log('-- ESLINT --\n');
+  child_process.execSync(path.join(baseDir, 'node_modules/.bin/eslint')
+    + ' -f unix \"src/**/*.{ts,tsx}\"',
+    { stdio: 'inherit' });
+
+  if (production) {
+    console.log('-- TEST --\n');
+
+    child_process.execSync(path.join(baseDir, 'lib/tests/index'), {
+      stdio: [ 0, 1, 1 ]
+    });
+  }
+
+  process.exitCode = 0;
+} catch (e) {
+  console.log('ERROR: ' + e.message);
+}