From 59b9235b5857d2bf03446690602dea7526c1109a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Ro=C5=BCek?= <jakub@stoplight.io>
Date: Fri, 11 Oct 2019 16:56:28 +0200
Subject: [PATCH] feat: implement stripRoot function

* fix(join): handle absolute segments

* feat: stripRoot

* revert: "fix(join): handle absolute segments"

This reverts commit 85a378475cf2580f4498b2aede6cee6413b343a3.

* chore: re-export
---
 src/__tests__/stripRoot.spec.ts | 18 ++++++++++++++++++
 src/index.ts                    |  3 ++-
 src/stripRoot.ts                |  7 +++++++
 3 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 src/__tests__/stripRoot.spec.ts
 create mode 100644 src/stripRoot.ts

diff --git a/src/__tests__/stripRoot.spec.ts b/src/__tests__/stripRoot.spec.ts
new file mode 100644
index 0000000..f78181f
--- /dev/null
+++ b/src/__tests__/stripRoot.spec.ts
@@ -0,0 +1,18 @@
+import { stripRoot } from '../stripRoot';
+
+describe('stripRoot', () => {
+  it.each(['foo', 'test/a', 'a/b'])('does not alter "%s" path', (path) => {
+    expect(stripRoot(path)).toEqual(path);
+  });
+
+  it.each`
+    actual       | expected
+    ${'/foo'}    | ${'foo'}
+    ${'c:\\foo'} | ${'foo'}
+    ${'\\foo'}   | ${'foo'}
+    ${'////a'}   | ${'a'}
+    ${'/\\///a'} | ${'a'}
+  `('strip root from "$actual" path', ({ actual, expected }) => {
+    expect(stripRoot(actual)).toEqual(expected);
+  });
+});
diff --git a/src/index.ts b/src/index.ts
index 630fe8d..dbf4e0f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -11,6 +11,7 @@ export * from './relative';
 export * from './resolve';
 export * from './sep';
 export * from './startsWithWindowsDrive';
+export * from './stripRoot';
 export * from './toFSPath';
 export * from './types';
-export * from './srn';
\ No newline at end of file
+export * from './srn';
diff --git a/src/stripRoot.ts b/src/stripRoot.ts
new file mode 100644
index 0000000..9ff7d08
--- /dev/null
+++ b/src/stripRoot.ts
@@ -0,0 +1,7 @@
+import { parse } from './parse';
+import { sep } from './sep';
+
+export const stripRoot = (path: string) =>
+  parse(path)
+    .path.filter(Boolean)
+    .join(sep);