feat: add support for glob patterns like prettier (#57)

README.md

@@ -88,6 +88,11 @@ Use with the `--staged` flag to skip re-staging files after formatting.
 
 When not in `staged` pre-commit mode, use this flag to compare changes with the specified branch. Defaults to `master` (git) / `default` (hg) branch.
 
+### `--pattern`
+
+Filters the files for the given [minimatch](https://github.com/isaacs/minimatch) pattern.  
+For example `pretty-quick --pattern "**/*.*(js|jsx)"` or `pretty-quick --pattern "**/*.js" --pattern "**/*.jsx"`
+
 ### `--verbose`
 
 Outputs the name of each file right before it is proccessed. This can be useful if Prettier throws an error and you can't identify which file is causing the problem.

package.json

@@ -28,7 +28,8 @@
     "execa": "^0.8.0",
     "find-up": "^2.1.0",
     "ignore": "^3.3.7",
-    "mri": "^1.1.0"
+    "mri": "^1.1.0",
+    "multimatch": "^3.0.0"
   },
   "scripts": {
     "prepublishOnly": "yarn build",

src/__tests__/scm-git.test.js

@@ -158,6 +158,47 @@ describe('with git', () => {
 
     expect(onWriteFile).toHaveBeenCalledWith('./foo.js');
     expect(onWriteFile).toHaveBeenCalledWith('./bar.md');
+    expect(onWriteFile.mock.calls.length).toBe(2);
+  });
+
+  test('calls onWriteFile with changed files for the given pattern', () => {
+    const onWriteFile = jest.fn();
+    mockGitFs();
+    prettyQuick('root', { pattern: '*.md', since: 'banana', onWriteFile });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
+  test('calls onWriteFile with changed files for the given globstar pattern', () => {
+    const onWriteFile = jest.fn();
+    mockGitFs();
+    prettyQuick('root', {
+      pattern: '**/*.md',
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
+  test('calls onWriteFile with changed files for the given extglob pattern', () => {
+    const onWriteFile = jest.fn();
+    mockGitFs();
+    prettyQuick('root', {
+      pattern: '*.*(md|foo|bar)',
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
+  test('calls onWriteFile with changed files for an array of globstar patterns', () => {
+    const onWriteFile = jest.fn();
+    mockGitFs();
+    prettyQuick('root', {
+      pattern: ['**/*.foo', '**/*.md', '**/*.bar'],
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
   });
 
   test('writes formatted files to disk', () => {

src/__tests__/scm-hg.test.js

@@ -116,6 +116,35 @@ describe('with hg', () => {
     expect(onWriteFile).toHaveBeenCalledWith('./bar.md');
   });
 
+  test('calls onWriteFile with changed files for the given pattern', () => {
+    const onWriteFile = jest.fn();
+    mockHgFs();
+    prettyQuick('root', { pattern: '*.md', since: 'banana', onWriteFile });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
+  test('calls onWriteFile with changed files for the given globstar pattern', () => {
+    const onWriteFile = jest.fn();
+    mockHgFs();
+    prettyQuick('root', {
+      pattern: '**/*.md',
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
+  test('calls onWriteFile with changed files for the given extglob pattern', () => {
+    const onWriteFile = jest.fn();
+    mockHgFs();
+    prettyQuick('root', {
+      pattern: '*.*(md|foo|bar)',
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
   test('writes formatted files to disk', () => {
     const onWriteFile = jest.fn();
 
@@ -127,6 +156,17 @@ describe('with hg', () => {
     expect(fs.readFileSync('/bar.md', 'utf8')).toEqual('formatted:# foo');
   });
 
+  test('calls onWriteFile with changed files for an array of globstar patterns', () => {
+    const onWriteFile = jest.fn();
+    mockHgFs();
+    prettyQuick('root', {
+      pattern: ['**/*.foo', '**/*.md', '**/*.bar'],
+      since: 'banana',
+      onWriteFile,
+    });
+    expect(onWriteFile.mock.calls).toEqual([['./bar.md']]);
+  });
+
   test('without --staged does NOT stage changed files', () => {
     mockHgFs();
 

src/createMatcher.js

@@ -0,0 +1,12 @@
+import multimatch from 'multimatch';
+const path = require('path');
+
+export default pattern => {
+  // Match everything if no pattern was given
+  if (typeof pattern !== 'string' && !Array.isArray(pattern)) {
+    return () => true;
+  }
+  const patterns = Array.isArray(pattern) ? pattern : [pattern];
+  return file =>
+    multimatch(path.normalize(file), patterns, { dot: true }).length > 0;
+};

src/index.js

@@ -1,6 +1,7 @@
 import scms from './scms';
 import formatFiles from './formatFiles';
 import createIgnorer from './createIgnorer';
+import createMatcher from './createMatcher';
 import isSupportedExtension from './isSupportedExtension';
 
 export default (
@@ -9,6 +10,7 @@ export default (
     config,
     since,
     staged,
+    pattern,
     restage = true,
     branch,
     verbose,
@@ -38,13 +40,15 @@ export default (
   const changedFiles = scm
     .getChangedFiles(directory, revision, staged)
     .filter(isSupportedExtension)
+    .filter(createMatcher(pattern))
     .filter(rootIgnorer)
     .filter(cwdIgnorer);
 
   const unstagedFiles = staged
     ? scm
         .getUnstagedChangedFiles(directory, revision)
         .filter(isSupportedExtension)
+        .filter(createMatcher(pattern))
         .filter(rootIgnorer)
         .filter(cwdIgnorer)
     : [];

yarn.lock

@@ -3130,6 +3130,15 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+multimatch@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/multimatch/-/multimatch-3.0.0.tgz#0e2534cc6bc238d9ab67e1b9cd5fcd85a6dbf70b"
+  dependencies:
+    array-differ "^2.0.3"
+    array-union "^1.0.2"
+    arrify "^1.0.1"
+    minimatch "^3.0.4"
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"