refactor(utils): remove duplicated function

packages/docusaurus-plugin-client-redirects/src/__tests__/collectRedirects.test.ts

@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {removeTrailingSlash} from '@docusaurus/utils';
+import {removeTrailingSlash} from '@docusaurus/utils-common';
 import {normalizePluginOptions} from '@docusaurus/utils-validation';
 import collectRedirects from '../collectRedirects';
 import {validateOptions} from '../options';

packages/docusaurus-plugin-client-redirects/src/collectRedirects.ts

@@ -7,8 +7,11 @@
 
 import _ from 'lodash';
 import logger from '@docusaurus/logger';
-import {addTrailingSlash, removeTrailingSlash} from '@docusaurus/utils';
-import {applyTrailingSlash} from '@docusaurus/utils-common';
+import {
+  applyTrailingSlash,
+  addTrailingSlash,
+  removeTrailingSlash,
+} from '@docusaurus/utils-common';
 import {
   createFromExtensionsRedirects,
   createToExtensionsRedirects,

packages/docusaurus-plugin-client-redirects/src/extensionRedirects.ts

@@ -9,7 +9,7 @@ import {
   addTrailingSlash,
   removeSuffix,
   removeTrailingSlash,
-} from '@docusaurus/utils';
+} from '@docusaurus/utils-common';
 import type {RedirectItem} from './types';
 
 const ExtensionAdditionalMessage =

packages/docusaurus-plugin-client-redirects/src/index.ts

@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {removePrefix, addLeadingSlash} from '@docusaurus/utils';
+import {addLeadingSlash, removePrefix} from '@docusaurus/utils-common';
 import collectRedirects from './collectRedirects';
 import writeRedirectFiles, {
   toRedirectFiles,

packages/docusaurus-plugin-content-docs/package.json

@@ -41,6 +41,7 @@
     "@docusaurus/module-type-aliases": "3.0.0",
     "@docusaurus/types": "3.0.0",
     "@docusaurus/utils": "3.0.0",
+    "@docusaurus/utils-common": "3.0.0",
     "@docusaurus/utils-validation": "3.0.0",
     "@types/react-router-config": "^5.0.7",
     "combine-promises": "^1.1.0",

packages/docusaurus-plugin-content-docs/src/sidebars/generator.ts

@@ -8,7 +8,7 @@
 import path from 'path';
 import _ from 'lodash';
 import logger from '@docusaurus/logger';
-import {addTrailingSlash} from '@docusaurus/utils';
+import {addTrailingSlash} from '@docusaurus/utils-common';
 import {createDocsByIdIndex, toCategoryIndexMatcherParam} from '../docs';
 import type {
   SidebarItemDoc,

packages/docusaurus-plugin-content-docs/src/slug.ts

@@ -5,12 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {
-  addLeadingSlash,
-  addTrailingSlash,
-  isValidPathname,
-  resolvePathname,
-} from '@docusaurus/utils';
+import {isValidPathname, resolvePathname} from '@docusaurus/utils';
+import {addLeadingSlash, addTrailingSlash} from '@docusaurus/utils-common';
 import {
   DefaultNumberPrefixParser,
   stripPathNumberPrefixes,

packages/docusaurus-utils-common/src/__tests__/applyTrailingSlash.test.ts

@@ -6,7 +6,10 @@
  */
 
 import applyTrailingSlash, {
+  addTrailingSlash,
   type ApplyTrailingSlashParams,
+  addLeadingSlash,
+  removeTrailingSlash,
 } from '../applyTrailingSlash';
 
 function params(
@@ -176,3 +179,30 @@ describe('applyTrailingSlash', () => {
     ).toBe('https://xyz.com/abc/?search#anchor');
   });
 });
+
+describe('addTrailingSlash', () => {
+  it('is no-op for path with trailing slash', () => {
+    expect(addTrailingSlash('/abcd/')).toBe('/abcd/');
+  });
+  it('adds / for path without trailing slash', () => {
+    expect(addTrailingSlash('/abcd')).toBe('/abcd/');
+  });
+});
+
+describe('addLeadingSlash', () => {
+  it('is no-op for path with leading slash', () => {
+    expect(addLeadingSlash('/abc')).toBe('/abc');
+  });
+  it('adds / for path without leading slash', () => {
+    expect(addLeadingSlash('abc')).toBe('/abc');
+  });
+});
+
+describe('removeTrailingSlash', () => {
+  it('is no-op for path without trailing slash', () => {
+    expect(removeTrailingSlash('/abcd')).toBe('/abcd');
+  });
+  it('removes / for path with trailing slash', () => {
+    expect(removeTrailingSlash('/abcd/')).toBe('/abcd');
+  });
+});

packages/docusaurus-utils-common/src/__tests__/stringUtils.test.ts

@@ -0,0 +1,55 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import {addPrefix, addSuffix, removePrefix, removeSuffix} from '../stringUtils';
+
+describe('removePrefix', () => {
+  it("is no-op when prefix doesn't exist", () => {
+    expect(removePrefix('abcdef', 'ijk')).toBe('abcdef');
+    expect(removePrefix('abcdef', 'def')).toBe('abcdef');
+    expect(removePrefix('abcdef', '')).toBe('abcdef');
+  });
+  it('removes prefix', () => {
+    expect(removePrefix('prefix', 'pre')).toBe('fix');
+  });
+});
+
+describe('removeSuffix', () => {
+  it("is no-op when suffix doesn't exist", () => {
+    expect(removeSuffix('abcdef', 'ijk')).toBe('abcdef');
+    expect(removeSuffix('abcdef', 'abc')).toBe('abcdef');
+    expect(removeSuffix('abcdef', '')).toBe('abcdef');
+  });
+  it('removes suffix', () => {
+    expect(removeSuffix('abcdef', 'ef')).toBe('abcd');
+  });
+  it('removes empty suffix', () => {
+    expect(removeSuffix('abcdef', '')).toBe('abcdef');
+  });
+});
+
+describe('addPrefix', () => {
+  it('is no-op when prefix already exists', () => {
+    expect(addPrefix('abcdef', 'abc')).toBe('abcdef');
+    expect(addPrefix('abc', '')).toBe('abc');
+    expect(addPrefix('', '')).toBe('');
+  });
+  it('adds prefix', () => {
+    expect(addPrefix('def', 'abc')).toBe('abcdef');
+  });
+});
+
+describe('addSuffix', () => {
+  it('is no-op when suffix already exists', () => {
+    expect(addSuffix('abcdef', 'def')).toBe('abcdef');
+    expect(addSuffix('abc', '')).toBe('abc');
+    expect(addSuffix('', '')).toBe('');
+  });
+  it('adds suffix', () => {
+    expect(addSuffix('abc', 'def')).toBe('abcdef');
+  });
+});

packages/docusaurus-utils-common/src/applyTrailingSlash.ts

@@ -5,13 +5,18 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+import {addPrefix, removeSuffix} from './stringUtils';
 import type {DocusaurusConfig} from '@docusaurus/types';
 
 export type ApplyTrailingSlashParams = Pick<
   DocusaurusConfig,
   'trailingSlash' | 'baseUrl'
 >;
 
+export function addTrailingSlash(str: string): string {
+  return str.endsWith('/') ? str : `${str}/`;
+}
+
 // Trailing slash handling depends in some site configuration options
 export default function applyTrailingSlash(
   path: string,
@@ -24,13 +29,6 @@ export default function applyTrailingSlash(
     return path;
   }
 
-  // TODO deduplicate: also present in @docusaurus/utils
-  function addTrailingSlash(str: string): string {
-    return str.endsWith('/') ? str : `${str}/`;
-  }
-  function removeTrailingSlash(str: string): string {
-    return str.endsWith('/') ? str.slice(0, -1) : str;
-  }
   function handleTrailingSlash(str: string, trailing: boolean): string {
     return trailing ? addTrailingSlash(str) : removeTrailingSlash(str);
   }
@@ -55,3 +53,13 @@ export default function applyTrailingSlash(
 
   return path.replace(pathname, newPathname);
 }
+
+/** Appends a leading slash to `str`, if one doesn't exist. */
+export function addLeadingSlash(str: string): string {
+  return addPrefix(str, '/');
+}
+
+/** Removes the trailing slash from `str`. */
+export function removeTrailingSlash(str: string): string {
+  return removeSuffix(str, '/');
+}

packages/docusaurus-utils-common/src/index.ts

@@ -11,6 +11,10 @@ export const blogPostContainerID = '__blog-post-container';
 
 export {
   default as applyTrailingSlash,
+  addTrailingSlash,
+  addLeadingSlash,
+  removeTrailingSlash,
   type ApplyTrailingSlashParams,
 } from './applyTrailingSlash';
+export {addPrefix, removeSuffix, addSuffix, removePrefix} from './stringUtils';
 export {getErrorCausalChain} from './errorUtils';

packages/docusaurus-utils-common/src/stringUtils.ts

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/** Adds a given string prefix to `str`. */
+export function addPrefix(str: string, prefix: string): string {
+  return str.startsWith(prefix) ? str : `${prefix}${str}`;
+}
+
+/** Removes a given string suffix from `str`. */
+export function removeSuffix(str: string, suffix: string): string {
+  if (suffix === '') {
+    // str.slice(0, 0) is ""
+    return str;
+  }
+  return str.endsWith(suffix) ? str.slice(0, -suffix.length) : str;
+}
+
+/** Adds a given string suffix to `str`. */
+export function addSuffix(str: string, suffix: string): string {
+  return str.endsWith(suffix) ? str : `${str}${suffix}`;
+}
+
+/** Removes a given string prefix from `str`. */
+export function removePrefix(str: string, prefix: string): string {
+  return str.startsWith(prefix) ? str.slice(prefix.length) : str;
+}

packages/docusaurus-utils-validation/package.json

@@ -20,6 +20,7 @@
   "dependencies": {
     "@docusaurus/logger": "3.0.0",
     "@docusaurus/utils": "3.0.0",
+    "@docusaurus/utils-common": "3.0.0",
     "joi": "^17.9.2",
     "js-yaml": "^4.1.0",
     "tslib": "^2.6.0"

packages/docusaurus-utils-validation/src/validationSchemas.ts

@@ -5,12 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {
-  isValidPathname,
-  DEFAULT_PLUGIN_ID,
-  type Tag,
-  addLeadingSlash,
-} from '@docusaurus/utils';
+import {isValidPathname, DEFAULT_PLUGIN_ID, type Tag} from '@docusaurus/utils';
+import {addLeadingSlash} from '@docusaurus/utils-common';
 import Joi from './Joi';
 import {JoiFrontMatter} from './JoiFrontMatter';
 

packages/docusaurus-utils/package.json

@@ -19,6 +19,7 @@
   "license": "MIT",
   "dependencies": {
     "@docusaurus/logger": "3.0.0",
+    "@docusaurus/utils-common": "3.0.0",
     "@svgr/webpack": "^6.5.1",
     "escape-string-regexp": "^4.0.0",
     "file-loader": "^6.2.0",

packages/docusaurus-utils/src/__tests__/jsUtils.test.ts

@@ -7,34 +7,7 @@
 
 import {jest} from '@jest/globals';
 import _ from 'lodash';
-import {
-  removeSuffix,
-  removePrefix,
-  mapAsyncSequential,
-  findAsyncSequential,
-} from '../jsUtils';
-
-describe('removeSuffix', () => {
-  it("is no-op when suffix doesn't exist", () => {
-    expect(removeSuffix('abcdef', 'ijk')).toBe('abcdef');
-    expect(removeSuffix('abcdef', 'abc')).toBe('abcdef');
-    expect(removeSuffix('abcdef', '')).toBe('abcdef');
-  });
-  it('removes suffix', () => {
-    expect(removeSuffix('abcdef', 'ef')).toBe('abcd');
-  });
-});
-
-describe('removePrefix', () => {
-  it("is no-op when prefix doesn't exist", () => {
-    expect(removePrefix('abcdef', 'ijk')).toBe('abcdef');
-    expect(removePrefix('abcdef', 'def')).toBe('abcdef');
-    expect(removePrefix('abcdef', '')).toBe('abcdef');
-  });
-  it('removes prefix', () => {
-    expect(removePrefix('prefix', 'pre')).toBe('fix');
-  });
-});
+import {mapAsyncSequential, findAsyncSequential} from '../jsUtils';
 
 describe('mapAsyncSequential', () => {
   function sleep(timeout: number): Promise<void> {

packages/docusaurus-utils/src/__tests__/urlUtils.test.ts

@@ -10,9 +10,6 @@ import {
   getEditUrl,
   fileToPath,
   isValidPathname,
-  addTrailingSlash,
-  addLeadingSlash,
-  removeTrailingSlash,
   resolvePathname,
   encodePath,
   buildSshUrl,
@@ -207,33 +204,6 @@ describe('isValidPathname', () => {
   });
 });
 
-describe('addTrailingSlash', () => {
-  it('is no-op for path with trailing slash', () => {
-    expect(addTrailingSlash('/abcd/')).toBe('/abcd/');
-  });
-  it('adds / for path without trailing slash', () => {
-    expect(addTrailingSlash('/abcd')).toBe('/abcd/');
-  });
-});
-
-describe('addLeadingSlash', () => {
-  it('is no-op for path with leading slash', () => {
-    expect(addLeadingSlash('/abc')).toBe('/abc');
-  });
-  it('adds / for path without leading slash', () => {
-    expect(addLeadingSlash('abc')).toBe('/abc');
-  });
-});
-
-describe('removeTrailingSlash', () => {
-  it('is no-op for path without trailing slash', () => {
-    expect(removeTrailingSlash('/abcd')).toBe('/abcd');
-  });
-  it('removes / for path with trailing slash', () => {
-    expect(removeTrailingSlash('/abcd/')).toBe('/abcd');
-  });
-});
-
 describe('parseURLPath', () => {
   it('parse and resolve pathname', () => {
     expect(parseURLPath('')).toEqual({

packages/docusaurus-utils/src/globUtils.ts

@@ -9,8 +9,7 @@
 
 import path from 'path';
 import Micromatch from 'micromatch'; // Note: Micromatch is used by Globby
-import {addSuffix} from './jsUtils';
-
+import {addSuffix} from '@docusaurus/utils-common';
 /** A re-export of the globby instance. */
 export {default as Globby} from 'globby';