Kotlin: Build system tweaks

Author: igfoo

java/kotlin-extractor/build.py

@@ -21,6 +21,8 @@ def parse_args():
                         help='Build for all versions/kinds')
     parser.add_argument('--single', action='store_false',
                         dest='many', help='Build for a single version/kind')
+    parser.add_argument('--single-version',
+                        help='Build for a specific version/kind')
     return parser.parse_args()
 
 
@@ -174,8 +176,8 @@ def compile(jars, java_jars, dependency_folder, transform_to_embeddable, output,
 
     for v in kotlin_plugin_versions.many_versions:
         if v != version:
-            shutil.rmtree(
-                tmp_dir + '/main/kotlin/utils/versions/v_' + v.replace('.', '_'))
+            d = tmp_dir + '/main/kotlin/utils/versions/v_' + v.replace('.', '_')
+            shutil.rmtree(d)
 
     srcs = find_sources(tmp_dir)
 
@@ -205,7 +207,9 @@ def compile_standalone(version):
             'build/temp_src',
             version)
 
-if args.many:
+if args.single_version:
+    compile_standalone(args.single_version)
+elif args.many:
     for version in kotlin_plugin_versions.many_versions:
         compile_standalone(version)
         compile_embeddable(version)

java/kotlin-extractor/kotlin_plugin_versions.py

@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 import platform
 import re
 import shutil