Ignore paths from .gitignore

options-manager.js

@@ -7,6 +7,7 @@ const deepAssign = require('deep-assign');
 const multimatch = require('multimatch');
 const resolveFrom = require('resolve-from');
 const pathExists = require('path-exists');
+const parseGitignore = require('parse-gitignore');
 
 const DEFAULT_IGNORE = [
 	'**/node_modules/**',
@@ -191,10 +192,20 @@ function groupConfigs(paths, baseOptions, overrides) {
 	return arr;
 }
 
+function getIgnores(opts) {
+	const gitignore = parseGitignore('.gitignore');
+
+	opts.ignores = DEFAULT_IGNORE.concat(opts.ignores || []);
+	opts.ignores = opts.ignores.concat(gitignore || []);
+
+	return opts;
+}
+
 function preprocess(opts) {
 	opts = mergeWithPkgConf(opts);
 	opts = normalizeOpts(opts);
-	opts.ignores = DEFAULT_IGNORE.concat(opts.ignores || []);
+	opts = getIgnores(opts);
+
 	return opts;
 }
 
@@ -208,3 +219,4 @@ exports.mergeApplicableOverrides = mergeApplicableOverrides;
 exports.groupConfigs = groupConfigs;
 exports.preprocess = preprocess;
 exports.emptyOptions = emptyOptions;
+exports.getIgnores = getIgnores;

package.json

@@ -77,6 +77,7 @@
     "has-flag": "^2.0.0",
     "meow": "^3.4.2",
     "multimatch": "^2.1.0",
+    "parse-gitignore": "^0.3.1",
     "path-exists": "^3.0.0",
     "pkg-conf": "^1.0.1",
     "resolve-cwd": "^1.0.0",

readme.md

@@ -159,7 +159,7 @@ Additional global variables your code accesses during execution.
 
 Type: `Array`
 
-Some [paths](https://github.com/sindresorhus/xo/blob/master/options-manager.js) are ignored by default. Additional ignores can be added here.
+Some [paths](https://github.com/sindresorhus/xo/blob/master/options-manager.js) are ignored by default, including paths in .gitignore. Additional ignores can be added here.
 
 ### space
 

test/.gitignore

@@ -0,0 +1,2 @@
+# This is a test .gitignore.
+foo/

test/options-manager.js

@@ -136,3 +136,8 @@ test('groupConfigs', t => {
 		return obj;
 	}));
 });
+
+test('gitignore', t => {
+	const result = manager.getIgnores({});
+	t.not(result.ignores.indexOf('foo/**'), -1);
+});