chore: enable some linter rules and tools (#478)

.commitlintrc

@@ -0,0 +1,3 @@
+{
+  "extends": "@1stg"
+}

.editorconfig

@@ -1,21 +1,10 @@
-# editorconfig.org
 root = true
 
 [*]
-charset = utf-8
-end_of_line = lf
-indent_size = 2
 indent_style = space
-insert_final_newline = true
+indent_size = 2
+tab_width = 2
+end_of_line = lf
+charset = utf-8
 trim_trailing_whitespace = true
-
-# Markdown syntax specifies that trailing whitespaces can be meaningful,
-# so let’s not trim those. e.g. 2 trailing spaces = linebreak (<br />)
-# See https://daringfireball.net/projects/markdown/syntax#p
-[*.md]
-trim_trailing_whitespace = false
-
-# Disable trailing whitespace removal in diff files,
-# where whitespace is meaningful
-[*.diff]
-trim_trailing_whitespace = false
+insert_final_newline = true

.eslintignore

@@ -1,2 +1 @@
-!.eslintrc.js
 test/fixtures

.eslintrc.json

@@ -0,0 +1,25 @@
+{
+  "root": true,
+  "env": {
+    "mocha": true
+  },
+  "extends": [
+    "plugin:n/recommended",
+    "plugin:sonar/recommended",
+    "plugin:sonarjs/recommended",
+    "plugin:eslint-plugin/recommended",
+    "prettier"
+  ],
+  "plugins": [
+    "self"
+  ],
+  "rules": {
+    "self/prettier": [
+      "error"
+    ],
+    "eslint-plugin/report-message-format": [
+      "error",
+      "^[^a-z].*\\.$"
+    ]
+  }
+}

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.github/dependabot.yml

@@ -5,9 +5,9 @@ updates:
     schedule:
       interval: monthly
     ignore:
-      # We're deliberatly targeting heavy backwards compatability to avoid
+      # We're deliberately targeting heavy backwards compatibility to avoid
       # making a breaking change and causing churn for the sake of it.
-      # Ignore dependencies that would result in or requre a breaking change
+      # Ignore dependencies that would result in or require a breaking change
       - dependency-name: 'eslint'
       - dependency-name: 'eslint-*'
       - dependency-name: 'prettier'

.github/workflows/ci.yml

@@ -16,9 +16,9 @@ jobs:
           - 7
           - 8
         node-version:
-          - 12
           - 14
           - 16
+          - 18
 
     steps:
       - uses: actions/checkout@v3
@@ -27,6 +27,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
+          cache: yarn
 
       - name: Use ESLint ${{ matrix.eslint-version }}
         run: yarn upgrade eslint@${{ matrix.eslint-version }}

.github/workflows/pkg-size.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 16.x
-          cache: yarn --frozen-lockfile
+          cache: yarn
 
       - name: Package Size Report
         uses: pkg-size/action@v1

.gitignore

@@ -1,2 +1,3 @@
-node_modules/
-npm-debug.log
+node_modules
+*.log
+.*cache

.lintstagedrc.js

@@ -0,0 +1 @@
+module.exports = require('@1stg/lint-staged');

.nvmrc

@@ -0,0 +1 @@
+lts/*

.prettierignore

@@ -1,6 +1,3 @@
-package.json
-CHANGELOG.md
-
 # this file doesn't exist, but we use it as a filename that should be ignored
 # by prettier in the tests
 ignore-me.js

.prettierrc

@@ -1,3 +1 @@
-{
-  "singleQuote": true
-}
+"@1stg/prettier-config/semi"

.simple-git-hooks.js

@@ -0,0 +1 @@
+module.exports = require('@1stg/simple-git-hooks');

CONTRIBUTING.md

@@ -4,32 +4,30 @@ Thanks for contributing!
 
 ## Installation
 
-```bash
+```sh
 git clone https://github.com/prettier/eslint-plugin-prettier.git
 cd eslint-plugin-prettier
-yarn # or `npm install`
+yarn
 ```
 
 ## Running the tests
 
-```bash
-npm test
+```sh
+yarn test
 ```
 
 This is an [ESLint](http://eslint.org) plugin. Documentation for the APIs that it uses can be found on ESLint's [Working with Plugins](http://eslint.org/docs/developer-guide/working-with-plugins) page.
 
-This plugin is used to lint itself. The style is checked when `npm test` is run, and the build will fail if there are any linting errors. You can use `npm run lint -- --fix` to fix some linting errors. To run the tests without running the linter, you can use `node_modules/.bin/mocha`.
+This plugin is used to lint itself. The style is checked when `yarn test` is run, and the build will fail if there are any linting errors. You can use `yarn lint --fix` to fix some linting errors. To run the tests without running the linter, you can use `yarn mocha`.
 
 ## Commit messages
 
-Commit messages should start with one of the following prefixes: `Breaking:`, `New:`, `Update:`, `Fix:`, `Docs:`, `Build:`, `Upgrade:`, `Chore:`. These prefixes are automatically used to determine the release type when generating a release, as described [here](https://github.com/not-an-aardvark/node-release-script/tree/5f5ed3fdfbb584f2e940daab1e2ad948b186410a#what-does-it-do).
+Please view [commitlint](https://commitlint.js.org) for more details.
 
 ## Publishing
 
-```bash
-npm run generate-release
-git push --follow-tags
-npm publish
+```sh
+yarn release
 ```
 
-`npm run generate-release` will autogenerate a commit, changelog entry, and git tag like https://github.com/prettier/eslint-plugin-prettier/commit/56873bf2.
+Please view [changesets](https://github.com/changesets/changesets) and its [action](https://github.com/changesets/action) for more details.

README.md

@@ -148,3 +148,11 @@ If you’re fixing large of amounts of previously unformatted code, consider tem
 ## Contributing
 
 See [CONTRIBUTING.md](https://github.com/prettier/eslint-plugin-prettier/blob/master/CONTRIBUTING.md)
+
+## Changelog
+
+Detailed changes for each release are documented in [CHANGELOG.md](./CHANGELOG.md).
+
+## License
+
+[MIT](http://opensource.org/licenses/MIT)

eslint-plugin-prettier.js

@@ -1,5 +1,5 @@
 /**
- * @fileoverview Runs `prettier` as an ESLint rule.
+ * @file Runs `prettier` as an ESLint rule.
  * @author Andres Suarez
  */
 
@@ -36,15 +36,16 @@ let prettier;
 
 /**
  * Reports a difference.
+ *
  * @param {import('eslint').Rule.RuleContext} context - The ESLint rule context.
  * @param {import('prettier-linter-helpers').Difference} difference - The difference object.
  * @returns {void}
  */
 function reportDifference(context, difference) {
   const { operation, offset, deleteText = '', insertText = '' } = difference;
   const range = [offset, offset + deleteText.length];
-  const [start, end] = range.map((index) =>
-    context.getSourceCode().getLocFromIndex(index)
+  const [start, end] = range.map(index =>
+    context.getSourceCode().getLocFromIndex(index),
   );
 
   context.report({
@@ -54,7 +55,7 @@ function reportDifference(context, difference) {
       insertText: showInvisibles(insertText),
     },
     loc: { start, end },
-    fix: (fixer) => fixer.replaceTextRange(range, insertText),
+    fix: fixer => fixer.replaceTextRange(range, insertText),
   });
 }
 
@@ -124,6 +125,7 @@ module.exports = {
         const source = sourceCode.text;
 
         return {
+          // eslint-disable-next-line sonarjs/cognitive-complexity
           Program() {
             if (!prettier) {
               // Prettier is expensive to load, so only load it if needed.
@@ -140,11 +142,11 @@ module.exports = {
 
             const { ignored, inferredParser } = prettier.getFileInfo.sync(
               onDiskFilepath,
-              Object.assign(
-                {},
-                { resolveConfig: true, ignorePath: '.prettierignore' },
-                eslintFileInfoOptions
-              )
+              {
+                resolveConfig: true,
+                ignorePath: '.prettierignore',
+                ...eslintFileInfoOptions,
+              },
             );
 
             // Skip if file is ignored using a .prettierignore file
@@ -189,8 +191,7 @@ module.exports = {
               // 3. `eslint-plugin-html`
               const parserBlocklist = [null, 'markdown', 'html'];
 
-              let inferParserToBabel =
-                parserBlocklist.indexOf(inferredParser) !== -1;
+              let inferParserToBabel = parserBlocklist.includes(inferredParser);
 
               if (
                 // it could be processed by `@graphql-eslint/eslint-plugin` or `eslint-plugin-graphql`
@@ -223,18 +224,17 @@ module.exports = {
                 'mdx',
                 'angular',
               ];
-              if (parserBlocklist.indexOf(inferredParser) !== -1) {
+              if (parserBlocklist.includes(inferredParser)) {
                 return;
               }
             }
 
-            const prettierOptions = Object.assign(
-              {},
-              initialOptions,
-              prettierRcOptions,
-              eslintPrettierOptions,
-              { filepath }
-            );
+            const prettierOptions = {
+              ...initialOptions,
+              ...prettierRcOptions,
+              ...eslintPrettierOptions,
+              filepath,
+            };
 
             // prettier.format() may throw a SyntaxError if it cannot parse the
             // source code it is given. Usually for JS files this isn't a