fix: include all files when using --config <path>

Author: iiroj

lib/groupFilesByConfig.js

@@ -2,11 +2,9 @@ import path from 'path'
 
 import debug from 'debug'
 
-import { ConfigObjectSymbol } from './searchConfigs.js'
-
 const debugLog = debug('lint-staged:groupFilesByConfig')
 
-export const groupFilesByConfig = async ({ configs, files }) => {
+export const groupFilesByConfig = async ({ configs, files, singleConfigMode }) => {
   debugLog('Grouping %d files by %d configurations', files.length, Object.keys(configs).length)
 
   const filesSet = new Set(files)
@@ -16,8 +14,8 @@ export const groupFilesByConfig = async ({ configs, files }) => {
   for (const filepath of Reflect.ownKeys(configs)) {
     const config = configs[filepath]
 
-    /** When passed an explicit config object via the Node.js API, skip logic */
-    if (filepath === ConfigObjectSymbol) {
+    /** When passed an explicit config object via the Node.js API‚ or an explicit path, skip logic */
+    if (singleConfigMode) {
       filesByConfig[filepath] = { config, files }
       break
     }

lib/runAll.js

@@ -133,7 +133,11 @@ export const runAll = async (
     throw createError(ctx, ConfigNotFoundError)
   }
 
-  const filesByConfig = await groupFilesByConfig({ configs: foundConfigs, files })
+  const filesByConfig = await groupFilesByConfig({
+    configs: foundConfigs,
+    files,
+    singleConfigMode: configObject || configPath !== undefined,
+  })
 
   const hasMultipleConfigs = numberOfConfigs > 1