Scripts: Ignore linting files located in build folders by default

packages/scripts/CHANGELOG.md

@@ -1,3 +1,9 @@
+## Master
+
+### New Features
+
+- The `lint-js`, `lint-pkg-json` and `lint-style` commands ignore now files located in `build` and `node_modules` folders by default ([15977](https://github.com/WordPress/gutenberg/pull/15977)).
+
 ## 3.2.0 (2019-05-21)
 
 ### New Feature

packages/scripts/README.md

@@ -123,6 +123,9 @@ This is how you execute the script with presented setup:
 
 * `npm run lint:js` - lints JavaScript files in the entire project's directories.
 
+
+By default, files located in `build` and `node_modules` folders are ignored.
+
 #### Advanced information
 
 It uses [eslint](https://eslint.org/) with the set of recommended rules defined in [@wordpress/eslint-plugin](https://www.npmjs.com/package/@wordpress/eslint-plugin) npm package. You can override default rules with your own as described in [eslint docs](https://eslint.org/docs/rules/). Learn more in the [Advanced Usage](#advanced-usage) section.
@@ -145,6 +148,8 @@ This is how you execute those scripts using the presented setup:
 
 * `npm run lint:pkg-json` - lints `package.json` file in the project's root folder.
 
+By default, files located in `build` and `node_modules` folders are ignored.
+
 #### Advanced information
 
 It uses [npm-package-json-lint](https://www.npmjs.com/package/npm-package-json-lint) with the set of recommended rules defined in [@wordpress/npm-package-json-lint-config](https://www.npmjs.com/package/@wordpress/npm-package-json-lint-config) npm package. You can override default rules with your own as described in [npm-package-json-lint wiki](https://github.com/tclindner/npm-package-json-lint/wiki). Learn more in the [Advanced Usage](#advanced-usage) section.
@@ -167,6 +172,8 @@ This is how you execute the script with presented setup:
 
 * `npm run lint:css` - lints CSS files in the whole project's directory.
 
+By default, files located in `build` and `node_modules` folders are ignored.
+
 #### Advanced information
 
 It uses [stylelint](https://github.com/stylelint/stylelint) with the [stylelint-config-wordpress](https://github.com/WordPress-Coding-Standards/stylelint-config-wordpress) configuration per the [WordPress CSS Coding Standards](https://make.wordpress.org/core/handbook/best-practices/coding-standards/css/). You can override them with your own rules as described in [stylelint user guide](https://github.com/stylelint/stylelint/docs/user-guide.md). Learn more in the [Advanced Usage](#advanced-usage) section.

packages/scripts/config/.eslintignore

@@ -0,0 +1,2 @@
+build
+node_modules

packages/scripts/config/.npmpackagejsonlintignore

@@ -0,0 +1,3 @@
+# By default, all `node_modules` are ignored.
+
+build

packages/scripts/config/.stylelintignore

@@ -0,0 +1,3 @@
+# By default, all `node_modules` are ignored.
+
+build

packages/scripts/scripts/lint-js.js

@@ -17,6 +17,7 @@ const {
 
 const args = getCliArgs();
 
+// See: https://eslint.org/docs/user-guide/configuring#using-configuration-files-1.
 const hasLintConfig = hasCliArg( '-c' ) ||
 	hasCliArg( '--config' ) ||
 	hasProjectFile( '.eslintrc.js' ) ||
@@ -33,9 +34,17 @@ const config = ! hasLintConfig ?
 	[ '--no-eslintrc', '--config', fromConfigRoot( '.eslintrc.js' ) ] :
 	[];
 
+// See: https://eslint.org/docs/user-guide/configuring#ignoring-files-and-directories.
+const hasIgnoredFiles = hasCliArg( '--ignore-path' ) ||
+	hasProjectFile( '.eslintignore' );
+
+const defaultIgnoreArgs = ! hasIgnoredFiles ?
+	[ '--ignore-path', fromConfigRoot( '.eslintignore' ) ] :
+	[];
+
 const result = spawn(
 	resolveBin( 'eslint' ),
-	[ ...config, ...args ],
+	[ ...config, ...defaultIgnoreArgs, ...args ],
 	{ stdio: 'inherit' }
 );
 

packages/scripts/scripts/lint-pkg-json.js

@@ -17,6 +17,7 @@ const {
 
 const args = getCliArgs();
 
+// See: https://github.com/tclindner/npm-package-json-lint/wiki/configuration#configuration.
 const hasLintConfig = hasCliArg( '-c' ) ||
 	hasCliArg( '--configFile' ) ||
 	hasProjectFile( '.npmpackagejsonlintrc.json' ) ||
@@ -27,9 +28,17 @@ const config = ! hasLintConfig ?
 	[ '--configFile', fromConfigRoot( 'npmpackagejsonlint.json' ) ] :
 	[];
 
+// See: https://github.com/tclindner/npm-package-json-lint/#cli-commands-and-configuration.
+const hasIgnoredFiles = hasCliArg( '--ignorePath' ) ||
+	hasProjectFile( '.npmpackagejsonlintignore' );
+
+const defaultIgnoreArgs = ! hasIgnoredFiles ?
+	[ '--ignorePath', fromConfigRoot( '.npmpackagejsonlintignore' ) ] :
+	[];
+
 const result = spawn(
 	resolveBin( 'npm-package-json-lint', { executable: 'npmPkgJsonLint' } ),
-	[ ...config, ...args ],
+	[ ...config, ...defaultIgnoreArgs, ...args ],
 	{ stdio: 'inherit' }
 );
 

packages/scripts/scripts/lint-style.js

@@ -17,7 +17,8 @@ const {
 
 const args = getCliArgs();
 
-const hasStylelintConfig = hasCliArg( '--config' ) ||
+// See: https://github.com/stylelint/stylelint/blob/master/docs/user-guide/configuration.md#loading-the-configuration-object.
+const hasLintConfig = hasCliArg( '--config' ) ||
 	hasProjectFile( '.stylelintrc' ) ||
 	hasProjectFile( '.stylelintrc.js' ) ||
 	hasProjectFile( '.stylelintrc.json' ) ||
@@ -26,13 +27,21 @@ const hasStylelintConfig = hasCliArg( '--config' ) ||
 	hasProjectFile( '.stylelint.config.js' ) ||
 	hasPackageProp( 'stylelint' );
 
-const config = ! hasStylelintConfig ?
+const config = ! hasLintConfig ?
 	[ '--config', fromConfigRoot( '.stylelintrc.json' ) ] :
 	[];
 
+// See: https://github.com/stylelint/stylelint/blob/master/docs/user-guide/configuration.md#stylelintignore.
+const hasIgnoredFiles = hasCliArg( '--ignore-path' ) ||
+	hasProjectFile( '.stylelintignore' );
+
+const defaultIgnoreArgs = ! hasIgnoredFiles ?
+	[ '--ignore-path', fromConfigRoot( '.stylelintignore' ) ] :
+	[];
+
 const result = spawn(
 	resolveBin( 'stylelint' ),
-	[ ...config, ...args ],
+	[ ...config, ...defaultIgnoreArgs, ...args ],
 	{ stdio: 'inherit' }
 );