Support overrides for dotfiles

CHANGELOG.unreleased.md

@@ -75,5 +75,11 @@ function function1<T>() {
 }
 ```
 
+#### Config: Match dotfiles in config overrides ([#6194] by [@duailibe])
+
+When using [`overrides`](https://prettier.io/docs/en/configuration.html#configuration-overrides) in the config file, Prettier was not matching dotfiles (files that start with `.`). This was fixed in 1.18.1
+
 [#6190]: https://github.com/prettier/prettier/pull/6190
+[#6194]: https://github.com/prettier/prettier/pull/6194
+[@duailibe]: https://github.com/duailibe
 [@sosukesuzuki]: https://github.com/sosukesuzuki

src/config/resolve-config.js

@@ -158,7 +158,7 @@ function mergeOverrides(configResult, filePath) {
 function pathMatchesGlobs(filePath, patterns, excludedPatterns) {
   const patternList = [].concat(patterns);
   const excludedPatternList = [].concat(excludedPatterns || []);
-  const opts = { matchBase: true };
+  const opts = { matchBase: true, dot: true };
 
   return (
     patternList.some(pattern => minimatch(filePath, pattern, opts)) &&

tests_integration/__tests__/config-resolution.js

@@ -232,6 +232,15 @@ test("API clearConfigCache", () => {
   expect(() => prettier.clearConfigCache()).not.toThrowError();
 });
 
+test("API resolveConfig overrides work with dotfiles", async () => {
+  const folder = path.join(__dirname, "../cli/config/dot-overrides");
+  await expect(
+    prettier.resolveConfig(path.join(folder, "foo.json"))
+  ).resolves.toMatchObject({
+    tabWidth: 4
+  });
+});
+
 test("API resolveConfig.sync overrides work with absolute paths", () => {
   // Absolute path
   const file = path.join(__dirname, "../cli/config/filepath/subfolder/file.js");

tests_integration/cli/config/dot-overrides/.prettierrc

@@ -0,0 +1,11 @@
+{
+  "tabWidth": 2,
+  overrides: [
+    {
+      "files": "*.json",
+      "options": {
+        "tabWidth": 4
+      }
+    }
+  ]
+}