feat: Support transformation and updating hooks

Author: prantlf

README.md

@@ -46,6 +46,12 @@ sourceMap: boolean
 
 Enables an inline source map in the preprocessed output to support debugging in the browser. The default is `true`.
 
+```ts
+onBeforeTransform, onAfterTransform, onBeforeUpdate, onAfterUpdate
+```
+
+ESM transformation and AMD update callbacks.
+
 ## Contributing
 
 In lieu of a formal styleguide, take care to maintain the existing coding style. Lint and test your code.

index.js

@@ -3,7 +3,10 @@ const { preprocess } = require('requirejs-esm-preprocessor')
 function createPreprocessor(args, config, helper) {
   const { basePath, logLevel, LOG_DEBUG, LOG_DISABLE, requirejsEsmPreprocessor } = config
   const defaults = { useStrict: true, sourceMap: true }
-  const { isScript, useStrict, sourceMap } = helper.merge(defaults, args, requirejsEsmPreprocessor || {})
+  const {
+    isScript, useStrict, sourceMap,
+    onBeforeTransform, onAfterTransform, onBeforeUpdate, onAfterUpdate
+  } = helper.merge(defaults, args, requirejsEsmPreprocessor || {})
   const verbose = logLevel === LOG_DEBUG
   const silent = logLevel === LOG_DISABLE
   const { length: basePathLen } = basePath
@@ -12,7 +15,10 @@ function createPreprocessor(args, config, helper) {
     let { originalPath: path } = file
     if (path.startsWith(basePath)) path = path.substring(basePathLen)
     if (!isScript || isScript(path)) {
-      contents = preprocess({ path, contents, isScript, useStrict, sourceMap, verbose, silent })
+      contents = preprocess({
+        path, contents, isScript, useStrict, sourceMap, verbose, silent,
+        onBeforeTransform, onAfterTransform, onBeforeUpdate, onAfterUpdate
+      })
     }
     done(null, contents)
   }

package.json

@@ -37,19 +37,19 @@
     "reporter": []
   },
   "peerDependencies": {
-    "requirejs-esm-preprocessor": "^3.0.0"
+    "requirejs-esm-preprocessor": "^3.2.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
     "c8": "^10.1.3",
     "eslint": "^9.39.1",
     "globals": "^16.5.0",
-    "jasmine-core": "^5.12.1",
+    "jasmine-core": "^5.13.0",
     "karma": "^6.4.4",
     "karma-brief-reporter": "^0.2.2",
     "karma-chrome-launcher": "^3.2.0",
     "karma-jasmine": "^5.1.0",
-    "requirejs-esm-preprocessor": "^3.0.0"
+    "requirejs-esm-preprocessor": "^3.2.0"
   },
   "keywords": [
     "karma-preprocessor",
@@ -62,4 +62,4 @@
     "esm",
     "es6"
   ]
-}
+}