feat(shared): add resolveRoutePathFromUrl util

Author: meteorlxy

packages/@vuepress/shared/__tests__/utils/resolveRoutePathFromUrl.spec.ts

@@ -0,0 +1,35 @@
+import { resolveRoutePathFromUrl } from '@vuepress/shared'
+
+const testCases: [
+  Parameters<typeof resolveRoutePathFromUrl>,
+  ReturnType<typeof resolveRoutePathFromUrl>
+][] = [
+  // with default base `/`
+  [['https://vuepress.vuejs.org/base/foo'], '/base/foo'],
+  [['http://vuepress.vuejs.org/base/foo'], '/base/foo'],
+  [['//vuepress.vuejs.org/base/foo'], '/base/foo'],
+  [['/base/foo'], '/base/foo'],
+  [['base/foo'], 'base/foo'],
+
+  // with base `/base/`
+  [['https://vuepress.vuejs.org/base/foo', '/base/'], '/foo'],
+  [['http://vuepress.vuejs.org/base/foo', '/base/'], '/foo'],
+  [['//vuepress.vuejs.org/base/foo', '/base/'], '/foo'],
+  [['//vuepress.vuejs.org/foo/bar', '/base/'], '/foo/bar'],
+  [['/base/foo', '/base/'], '/foo'],
+  [['/foo/bar', '/base/'], '/foo/bar'],
+  [['base/foo', '/base/'], 'base/foo'],
+  [['foo/bar', '/base/'], 'foo/bar'],
+]
+
+describe('shared > resolveRoutePathFromUrl', () => {
+  describe('should resolve route path correctly', () => {
+    testCases.forEach(([source, expected]) => {
+      it(`url: ${source[0]}, base: ${
+        source[1] || '/'
+      } => expected: ${expected}`, () => {
+        expect(resolveRoutePathFromUrl(...source)).toEqual(expected)
+      })
+    })
+  })
+})

packages/@vuepress/shared/src/utils/index.ts

@@ -17,3 +17,4 @@ export * from './removeEndingSlash'
 export * from './removeLeadingSlash'
 export * from './resolveHeadIdentifier'
 export * from './resolveLocalePath'
+export * from './resolveRoutePathFromUrl'

packages/@vuepress/shared/src/utils/resolveRoutePathFromUrl.ts

@@ -0,0 +1,6 @@
+export const resolveRoutePathFromUrl = (url: string, base = '/'): string =>
+  url
+    // remove url origin
+    .replace(/^(https?:)?\/\/[^/]*/, '')
+    // remove site base
+    .replace(new RegExp(`^${base}`), '/')