Update remark plugin to allow enabling of doctests

Planeshifter · Planeshifter · commit 16d2bce635d7 · 2018-11-05T20:29:05.000-08:00
diff --git a/etc/remark/plugins/eslint/index.js b/etc/remark/plugins/eslint/index.js
@@ -31,6 +31,9 @@ var config = join( etc, 'eslint', '.eslintrc.markdown.js' );
 var eslint = resolve( etc, '..', 'lib', 'node_modules', '@stdlib', '_tools', 'remark', 'plugins', 'remark-lint-eslint' );
 var opts = {
 	'config': config,
+	'rules': {
+		'stdlib/doctest': 'error' // enable otherwise disabled lint rule
+	},
 	'ignore': false,
 	'useEslintrc': false
 };
diff --git a/lib/node_modules/@stdlib/_tools/remark/plugins/remark-lint-eslint/lib/factory.js b/lib/node_modules/@stdlib/_tools/remark/plugins/remark-lint-eslint/lib/factory.js
@@ -25,6 +25,7 @@ var rule = require( 'unified-lint-rule' );
 var visit = require( 'unist-util-visit' );
 var Engine = require( 'eslint' ).CLIEngine;
 var cwd = require( '@stdlib/process/cwd' );
+var contains = require( '@stdlib/assert/contains' );
 var hasOwnProp = require( '@stdlib/assert/has-own-property' );
 var isObject = require( '@stdlib/assert/is-plain-object' );
 var transformHTML = require( './transform_html.js' );
@@ -60,6 +61,9 @@ function factory( options ) {
 		if ( hasOwnProp( options, 'config' ) ) {
 			opts.configFile = resolve( cwd(), options.config );
 		}
+		if ( hasOwnProp( options, 'rules' ) ) {
+			opts.rules = options.rules;
+		}
 		if ( hasOwnProp( options, 'ignore' ) ) {
 			opts.ignore = options.ignore;
 		}
@@ -81,6 +85,7 @@ function factory( options ) {
 	* @param {Callback} clbk - callback
 	*/
 	function lint( tree, file ) {
+		var FIRST;
 		visit( tree, 'code', onNode );
 
 		/**
@@ -106,6 +111,9 @@ function factory( options ) {
 			var j;
 
 			if ( node.lang === 'javascript' || node.lang === 'js' ) {
+				if ( !FIRST ) {
+					FIRST = node.value;
+				}
 				// Look for HTML comments immediately preceding a code block which may contain ESLint configuration...
 				idx -= 1;
 				prev = parent.children[ idx ];
@@ -127,6 +135,9 @@ function factory( options ) {
 				code = comments.join( '\n' );
 
 				// Lint the code block...
+				if ( !contains( code, FIRST ) ) {
+					code = FIRST + '\n' + code;
+				}
 				report = cli.executeOnText( code );
 				for ( i = 0; i < report.results.length; i++ ) {
 					result = report.results[ i ];
