From d023244aa5a71c9cf0e68f196c0a402a8ccc951f Mon Sep 17 00:00:00 2001
From: Lukas Eipert <git@leipert.io>
Date: Mon, 26 Mar 2018 07:39:14 +0000
Subject: Make use of the prettier ignore file during our save script

---
 scripts/frontend/prettier.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'scripts/frontend/prettier.js')

diff --git a/scripts/frontend/prettier.js b/scripts/frontend/prettier.js
index 2708340b48e..39de77bc333 100644
--- a/scripts/frontend/prettier.js
+++ b/scripts/frontend/prettier.js
@@ -1,6 +1,8 @@
 const glob = require('glob');
 const prettier = require('prettier');
 const fs = require('fs');
+const path = require('path');
+const prettierIgnore = require('ignore')();
 
 const getStagedFiles = require('./frontend_script_utils').getStagedFiles;
 
@@ -10,6 +12,10 @@ const allFiles = mode === 'check-all' || mode === 'save-all';
 
 const config = {
   patterns: ['**/*.js', '**/*.vue', '**/*.scss'],
+  /*
+   * The ignore patterns below are just to reduce search time with glob, as it includes the
+   * folders with the most ignored assets, the actual `.prettierignore` will be used later on
+   */
   ignore: ['**/node_modules/**', '**/vendor/**', '**/public/**'],
   parsers: {
     js: 'babylon',
@@ -17,6 +23,20 @@ const config = {
     scss: 'css',
   },
 };
+
+/*
+ * Unfortunately the prettier API does not expose support for `.prettierignore` files, they however
+ * use the ignore package, so we do the same. We simply cannot use the glob package, because
+ * gitignore style is not compatible with globs ignore style.
+ */
+prettierIgnore.add(
+  fs
+    .readFileSync(path.join(__dirname, '../../', '.prettierignore'))
+    .toString()
+    .trim()
+    .split(/\r?\n/)
+);
+
 const availableExtensions = Object.keys(config.parsers);
 
 console.log(`Loading ${allFiles ? 'All' : 'Staged'} Files ...`);
@@ -44,6 +64,8 @@ if (allFiles) {
   files = stagedFiles.filter(f => availableExtensions.includes(f.split('.').pop()));
 }
 
+files = prettierIgnore.filter(files);
+
 if (!files.length) {
   console.log('No Files found to process with Prettier');
   return;
-- 
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