feat: allow customizing the baseName for the barrel file and other generator keys

Author: thetutlage

src/index_generator/source.ts

@@ -160,11 +160,14 @@ export class IndexGeneratorSource {
   #createBarrelFileKeyGenerator(config: IndexGeneratorSourceConfig) {
     return function (key: string) {
       const paths = key.split('/')
-      const baseName = new StringBuilder(paths.pop()!)
-        .removeSuffix(config.removeSuffix ?? '')
-        .pascalCase()
-        .toString()
-      return [...paths.map((p) => string.camelCase(p)), baseName].join('/')
+      let baseName = new StringBuilder(paths.pop()!)
+      if (config.computeBaseName) {
+        baseName = config.computeBaseName(baseName)
+      } else {
+        baseName = baseName.removeSuffix(config.removeSuffix ?? '').pascalCase()
+      }
+
+      return [...paths.map((p) => string.camelCase(p)), baseName.toString()].join('/')
     }
   }
 

src/types/common.ts

@@ -9,6 +9,7 @@
 
 import type { Logger } from '@poppinss/cliui'
 import { type Prettify } from '@poppinss/utils/types'
+import type StringBuilder from '@poppinss/utils/string_builder'
 
 import { type AllHooks } from './hooks.ts'
 import { type FileBuffer } from '../file_buffer.ts'
@@ -47,6 +48,7 @@ export type IndexGeneratorSourceConfig = (
       ) => void
     }
 ) & {
+  computeBaseName?: (baseName: StringBuilder) => StringBuilder
   source: string
   output: string
   glob?: string[]