3 files changed, 44 insertions, 4 deletions

diff --git a/src/bun.js/builtins/cpp/BundlerPluginBuiltins.cpp b/src/bun.js/builtins/cpp/BundlerPluginBuiltins.cpp
index be049ae13..f66e568a3 100644
--- a/src/bun.js/builtins/cpp/BundlerPluginBuiltins.cpp
+++ b/src/bun.js/builtins/cpp/BundlerPluginBuiltins.cpp
@@ -202,10 +202,10 @@ const char* const s_bundlerPluginRunOnResolvePluginsCode =
 const JSC::ConstructAbility s_bundlerPluginRunSetupFunctionCodeConstructAbility = JSC::ConstructAbility::CannotConstruct;
 const JSC::ConstructorKind s_bundlerPluginRunSetupFunctionCodeConstructorKind = JSC::ConstructorKind::None;
 const JSC::ImplementationVisibility s_bundlerPluginRunSetupFunctionCodeImplementationVisibility = JSC::ImplementationVisibility::Public;
-const int s_bundlerPluginRunSetupFunctionCodeLength = 3794;
+const int s_bundlerPluginRunSetupFunctionCodeLength = 4551;
 static const JSC::Intrinsic s_bundlerPluginRunSetupFunctionCodeIntrinsic = JSC::NoIntrinsic;
 const char* const s_bundlerPluginRunSetupFunctionCode =
-    "(function (setup) {\n" \
+    "(function (setup, config) {\n" \
     "  \"use strict\";\n" \
     "  var onLoadPlugins = new Map(),\n" \
     "    onResolvePlugins = new Map();\n" \
@@ -271,6 +271,10 @@ const char* const s_bundlerPluginRunSetupFunctionCode =
     "    @throwTypeError(\"On-dispose callbacks are not implemented yet. See https:/\\/github.com/oven-sh/bun/issues/2771\");\n" \
     "  }\n" \
     "\n" \
+    "  function onDispose(callback) {\n" \
+    "    @throwTypeError(\"build.resolve() is not implemented yet. See https:/\\/github.com/oven-sh/bun/issues/2771\");\n" \
+    "  }\n" \
+    "\n" \
     "  const processSetupResult = () => {\n" \
     "    var anyOnLoad = false,\n" \
     "      anyOnResolve = false;\n" \
@@ -327,11 +331,27 @@ const char* const s_bundlerPluginRunSetupFunctionCode =
     "  };\n" \
     "\n" \
     "  var setupResult = setup({\n" \
+    "    config,\n" \
     "    onDispose,\n" \
     "    onEnd,\n" \
     "    onLoad,\n" \
     "    onResolve,\n" \
     "    onStart,\n" \
+    "    resolve,\n" \
+    "    //\n" \
+    "    initialOptions: {\n" \
+    "      ...config,\n" \
+    "      bundle: true,\n" \
+    "      entryPoints: config.entrypoints ?? config.entryPoints ?? [],\n" \
+    "      minify: typeof config.minify === 'boolean' ? config.minify : false,\n" \
+    "      minifyIdentifiers: config.minify === true || config.minify?.identifiers,\n" \
+    "      minifyWhitespace: config.minify === true || config.minify?.whitespace,\n" \
+    "      minifySyntax: config.minify  === true || config.minify?.syntax,\n" \
+    "      outbase: config.root,\n" \
+    "      platform: config.target === 'bun' ? 'node' : config.target,\n" \
+    "      root: undefined,\n" \
+    "    },\n" \
+    "    esbuild: {},\n" \
     "  });\n" \
     "\n" \
     "  if (setupResult && @isPromise(setupResult)) {\n" \
diff --git a/src/bun.js/builtins/cpp/BundlerPluginBuiltins.h b/src/bun.js/builtins/cpp/BundlerPluginBuiltins.h
index 91b3233f2..d1fdaf4ec 100644
--- a/src/bun.js/builtins/cpp/BundlerPluginBuiltins.h
+++ b/src/bun.js/builtins/cpp/BundlerPluginBuiltins.h
@@ -65,7 +65,7 @@ extern const JSC::ImplementationVisibility s_bundlerPluginRunOnLoadPluginsCodeIm
 
 #define WEBCORE_FOREACH_BUNDLERPLUGIN_BUILTIN_DATA(macro) \
     macro(runOnResolvePlugins, bundlerPluginRunOnResolvePlugins, 5) \
-    macro(runSetupFunction, bundlerPluginRunSetupFunction, 1) \
+    macro(runSetupFunction, bundlerPluginRunSetupFunction, 2) \
     macro(runOnLoadPlugins, bundlerPluginRunOnLoadPlugins, 4) \
 
 #define WEBCORE_BUILTIN_BUNDLERPLUGIN_RUNONRESOLVEPLUGINS 1
diff --git a/src/bun.js/builtins/js/BundlerPlugin.js b/src/bun.js/builtins/js/BundlerPlugin.js
index ec8fee397..43f6e889a 100644
--- a/src/bun.js/builtins/js/BundlerPlugin.js
+++ b/src/bun.js/builtins/js/BundlerPlugin.js
@@ -178,7 +178,7 @@ function runOnResolvePlugins(
   }
 }
 
-function runSetupFunction(setup) {
+function runSetupFunction(setup, config) {
   "use strict";
   var onLoadPlugins = new Map(),
     onResolvePlugins = new Map();
@@ -244,6 +244,10 @@ function runSetupFunction(setup) {
     @throwTypeError("On-dispose callbacks are not implemented yet. See https:/\/github.com/oven-sh/bun/issues/2771");
   }
 
+  function onDispose(callback) {
+    @throwTypeError("build.resolve() is not implemented yet. See https:/\/github.com/oven-sh/bun/issues/2771");
+  }
+
   const processSetupResult = () => {
     var anyOnLoad = false,
       anyOnResolve = false;
@@ -300,11 +304,27 @@ function runSetupFunction(setup) {
   };
 
   var setupResult = setup({
+    config,
     onDispose,
     onEnd,
     onLoad,
     onResolve,
     onStart,
+    resolve,
+    // esbuild's options argument is different, we provide some interop
+    initialOptions: {
+      ...config,
+      bundle: true,
+      entryPoints: config.entrypoints ?? config.entryPoints ?? [],
+      minify: typeof config.minify === 'boolean' ? config.minify : false,
+      minifyIdentifiers: config.minify === true || config.minify?.identifiers,
+      minifyWhitespace: config.minify === true || config.minify?.whitespace,
+      minifySyntax: config.minify  === true || config.minify?.syntax,
+      outbase: config.root,
+      platform: config.target === 'bun' ? 'node' : config.target,
+      root: undefined,
+    },
+    esbuild: {},
   });
 
   if (setupResult && @isPromise(setupResult)) {