fix: restore support of project param

Close #2633

Author: develar

packages/electron-builder-lib/src/packager.ts

@@ -136,10 +136,6 @@ export class Packager {
 
   //noinspection JSUnusedGlobalSymbols
   constructor(options: PackagerOptions, readonly cancellationToken = new CancellationToken()) {
-    if ("project" in options) {
-      throw new InvalidConfigurationError("Use projectDir instead of project")
-    }
-
     if ("devMetadata" in options) {
       throw new InvalidConfigurationError("devMetadata in the options is deprecated, please use config instead")
     }

packages/electron-builder/src/builder.ts

@@ -122,8 +122,6 @@ export function normalizeOptions(args: CliOptions): BuildOptions {
   delete result.arch
 
   const r = result as any
-  delete r.em
-
   delete r.m
   delete r.o
   delete r.l
@@ -141,7 +139,6 @@ export function normalizeOptions(args: CliOptions): BuildOptions {
   delete result.armv7l
 
   let config = result.config
-  delete r.extraMetadata
 
   // config is array when combining dot-notation values with a config file value (#2016)
   if (Array.isArray(config)) {
@@ -170,6 +167,10 @@ export function normalizeOptions(args: CliOptions): BuildOptions {
     }
   }
 
+  if ("project" in r && !("projectDir" in result)) {
+    result.projectDir = r.project
+    delete r.project
+  }
   return result as BuildOptions
 }