make windows paths case-insensitive

sindresorhus · Jul 4, 2019 · c60796c · c60796c
1 parent 69364ed
commit c60796c
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diff --git a/index.js b/index.js
@@ -6,6 +6,11 @@ module.exports = (childPath, parentPath) => {
 	childPath = path.resolve(childPath);
 	parentPath = path.resolve(parentPath);
 
+	if (process.platform === 'win32') {
+		childPath = childPath.toLowerCase();
+		parentPath = parentPath.toLowerCase();
+	}
+
 	if (childPath === parentPath) {
 		return false;
 	}

diff --git a/test.js b/test.js
@@ -1,3 +1,4 @@
+import path from 'path';
 import test from 'ava';
 import isPathInside from '.';
 
@@ -7,3 +8,19 @@ test('main', t => {
 	t.false(isPathInside('a/b', 'a/b'));
 	t.false(isPathInside('/a/b', '/a/b'));
 });
+
+test('win32', t => {
+	const processPlatform = process.platform;
+	const pathSep = path.sep;
+
+	Object.defineProperty(process, 'platform', {value: 'win32'});
+	Object.defineProperty(path, 'sep', {value: '\\'});
+
+	t.true(isPathInside('A\\b\\c', 'a\\b'));
+	t.false(isPathInside('A\\b', 'a\\b'));
+	t.true(isPathInside('c:\\a\\b\\c\\d', 'C:\\a\\b\\c'));
+	t.false(isPathInside('C:\\a\\b\\c', 'c:\\a\\b\\c'));
+
+	Object.defineProperty(process, 'platform', {value: processPlatform});
+	Object.defineProperty(path, 'sep', {value: pathSep});
+});