fix(core): fix ignore logic and un-expose the functions from devkit

docs/generated/devkit/index.md

@@ -132,8 +132,6 @@ It only uses language primitives and immutable objects
 - [applyChangesToString](../../devkit/index#applychangestostring)
 - [convertNxExecutor](../../devkit/index#convertnxexecutor)
 - [convertNxGenerator](../../devkit/index#convertnxgenerator)
-- [createIgnore](../../devkit/index#createignore)
-- [createIgnoreFromTree](../../devkit/index#createignorefromtree)
 - [createProjectGraphAsync](../../devkit/index#createprojectgraphasync)
 - [defaultTasksRunner](../../devkit/index#defaulttasksrunner)
 - [detectPackageManager](../../devkit/index#detectpackagemanager)
@@ -899,46 +897,6 @@ Convert an Nx Generator into an Angular Devkit Schematic.
 
 ---
 
-### createIgnore
-
-▸ **createIgnore**(`rootDir?`, `ignoreFiles?`): `Ignore`
-
-Reads ignore files from the file system and returns an object which can be
-used to check whether a file should be ignored.
-
-#### Parameters
-
-| Name          | Type       | Default value          | Description                                                                                                                                                            |
-| :------------ | :--------- | :--------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `rootDir`     | `string`   | `workspaceRoot`        | The directory in which to start searching for ignore files. Paths evaluated by the returned object must be relative to this directory. Defaults to the workspace root. |
-| `ignoreFiles` | `string`[] | `workspaceIgnoreFiles` | The filename of ignore files to include, e.g. ".gitignore". Defaults to [".gitignore", ".nxignore"].                                                                   |
-
-#### Returns
-
-`Ignore`
-
----
-
-### createIgnoreFromTree
-
-▸ **createIgnoreFromTree**(`tree`, `ignoreFiles?`): `Ignore`
-
-Reads ignore files from a Tree and returns an object which can be
-used to check whether a file should be ignored.
-
-#### Parameters
-
-| Name          | Type                              | Default value          | Description                                                                                                                |
-| :------------ | :-------------------------------- | :--------------------- | :------------------------------------------------------------------------------------------------------------------------- |
-| `tree`        | [`Tree`](../../devkit/index#tree) | `undefined`            | The tree in which to searching for ignore files. Paths evaluated by the returned object must be relative to the tree root. |
-| `ignoreFiles` | `string`[]                        | `workspaceIgnoreFiles` | The filename of ignore files to include, e.g. ".gitignore". Defaults to [".gitignore", ".nxignore"].                       |
-
-#### Returns
-
-`Ignore`
-
----
-
 ### createProjectGraphAsync
 
 ▸ **createProjectGraphAsync**(): `Promise`<[`ProjectGraph`](../../devkit/index#projectgraph)\>

packages/add-nx-to-monorepo/src/add-nx-to-monorepo.ts

@@ -1,11 +1,7 @@
 #!/usr/bin/env node
 
-import {
-  createIgnore,
-  output,
-  readJsonFile,
-  writeJsonFile,
-} from '@nrwl/devkit';
+import { output, readJsonFile, writeJsonFile } from '@nrwl/devkit';
+import { createIgnore } from 'nx/src/utils/ignore';
 import * as cp from 'child_process';
 import { execSync } from 'child_process';
 import * as enquirer from 'enquirer';

packages/devkit/index.ts

@@ -319,8 +319,3 @@ export { Hash, Hasher } from 'nx/src/hasher/hasher';
  * @category Utils
  */
 export { cacheDir } from 'nx/src/utils/cache-directory';
-
-/**
- * @category Utils
- */
-export { createIgnore, createIgnoreFromTree } from 'nx/src/utils/ignore';

packages/nx/src/utils/ignore.spec.ts

@@ -53,6 +53,13 @@ describe('createCombinedIgnore', () => {
     expect(ignore.ignores('c')).toBe(false);
   });
 
+  it('should support ignoring root directory from file at root', () => {
+    const ignore = createCombinedIgnore([{ path: '.ignore', content: '/b' }]);
+    expect(ignore.ignores('b')).toBe(true);
+    expect(ignore.ignores('path/to/b')).toBe(false);
+    expect(ignore.ignores('c')).toBe(false);
+  });
+
   it('should support nested ignore file', () => {
     const ignore = createCombinedIgnore([{ path: 'a/.ignore', content: 'b' }]);
     expect(ignore.ignores('a/b')).toBe(true);

packages/nx/src/utils/ignore.ts

@@ -127,11 +127,15 @@ function combineIgnorePatterns(ignoreFiles: IgnoreFile[]): string[] {
 
 function parseIgnoreFile(file: IgnoreFile): string[] {
   const base = normalizePath(path.dirname(file.path));
-
-  return file.content
+  const patterns = file.content
     .split(/\r?\n/)
-    .filter((line) => line && !line.startsWith('#'))
-    .map((pattern) => applyBaseToPattern(pattern, base));
+    .filter((line) => line && !line.startsWith('#'));
+
+  if (base === '.') {
+    return patterns;
+  }
+
+  return patterns.map((pattern) => applyBaseToPattern(pattern, base));
 }
 
 function applyBaseToPattern(pattern: string, base: string): string {