Added lambda_package option to map files into the zip archive (rename)

Gruntfile.js

@@ -73,7 +73,8 @@ module.exports = function (grunt) {
                     dist_folder: 'tmp/dist',
                     include_time: false,
                     package_folder: 'test/fixtures/package_custom',
-                    include_files: ['custom.json']
+                    include_files: ['custom.json'],
+                    include_files_mapped: {'custom.json': 'custom_mapped.json'}
                 }
             }
         },

README.md

@@ -174,6 +174,14 @@ Default value: `[]`
 
 List of files to explicitly include in the package, even if they would be ignored by NPM
 
+##### options.include_files_mapped
+Type: `Object`
+Default value: `{}`
+
+Mapping of files to explicitly include in the package, even if they would be ignored by NPM.
+The object contains the source as a key and the destination in the zip archive as value.
+This is for example useful when using different environment configurations.
+
 ##### options.include_time
 Type: `Boolean`
 Default value: `true`

test/integ/lambda_package_test.js

@@ -59,12 +59,13 @@ exports.lambda_package = {
         });
     },
     custom_options: function (test) {
-        test.expect(6);
+        test.expect(7);
         var zip = new AdmZip("tmp/dist/another-lambda-function_0-0-1_latest.zip");
         var zipEntries = zip.getEntries();
 
         var required = [
             'custom.json',
+            'custom_mapped.json',
             'index.js',
             'package.json',
             'node_modules/',

utils/package_task.js

@@ -29,7 +29,8 @@ packageTask.getHandler = function (grunt) {
             'include_time': true,
             'include_version': true,
             'package_folder': './',
-            'include_files': []
+            'include_files': [],
+            'include_files_mapped': {}
         });
 
         var pkg = JSON.parse(fs.readFileSync(path.resolve(options.package_folder + '/package.json'), "utf8"));
@@ -97,6 +98,13 @@ packageTask.getHandler = function (grunt) {
                     ]);
                 }
 
+                if (Object.keys(options.include_files_mapped).length !== 0) {
+                    // maps: src -> destination
+                    Object.keys(options.include_files_mapped).forEach(function (src) {
+                        zipArchive.append(src, {name: options.include_files_mapped[src]});
+                    });
+                }
+
                 zipArchive.finalize();
 
                 output.on('close', function () {