Use Soong to build to etc modules.

This is the final piece of mk to bp conversion effort for vndk.

Bug: 122332178
Test: Locally ran the test script and built the phony targets.
Change-Id: I9988cc840c0660cc4fb47129ea16cfacb4c0a7ba

3 files changed, 32 insertions, 31 deletions

diff --git a/vndk/snapshot/gen_buildfiles.py b/vndk/snapshot/gen_buildfiles.py
index 35697aa45..9a8d4de1b 100644
--- a/vndk/snapshot/gen_buildfiles.py
+++ b/vndk/snapshot/gen_buildfiles.py
@@ -25,9 +25,10 @@ import utils
 
 
 class GenBuildFile(object):
-    """Generates Android.mk and Android.bp for VNDK snapshot.
+    """Generates Android.bp for VNDK snapshot.
 
     VNDK snapshot directory structure under prebuilts/vndk/v{version}:
+        Android.bp
         {SNAPSHOT_ARCH}/
             Android.bp
             arch-{TARGET_ARCH}-{TARGET_ARCH_VARIANT}/
@@ -52,7 +53,6 @@ class GenBuildFile(object):
                 (various *.txt configuration files, e.g. ld.config.*.txt)
         ... (other {SNAPSHOT_ARCH}/ directories)
         common/
-            Android.mk
             Android.bp
             NOTICE_FILES/
                 (license files, e.g. libfoo.so.txt)
@@ -77,7 +77,7 @@ class GenBuildFile(object):
         self._vndk_version = vndk_version
         self._etc_paths = self._get_etc_paths()
         self._snapshot_archs = utils.get_snapshot_archs(install_dir)
-        self._mkfile = os.path.join(install_dir, utils.ANDROID_MK_PATH)
+        self._root_bpfile = os.path.join(install_dir, utils.ROOT_BP_PATH)
         self._common_bpfile = os.path.join(install_dir, utils.COMMON_BP_PATH)
         self._vndk_core = self._parse_lib_list('vndkcore.libraries.txt')
         self._vndk_sp = self._parse_lib_list(
@@ -122,10 +122,10 @@ class GenBuildFile(object):
                          '*.txt'))
         return [os.path.splitext(os.path.basename(p))[0] for p in notice_paths]
 
-    def generate_android_mk(self):
-        """Autogenerates Android.mk."""
+    def generate_root_android_bp(self):
+        """Autogenerates Android.bp."""
 
-        logging.info('Generating Android.mk for snapshot v{}'.format(
+        logging.info('Generating Android.bp for snapshot v{}'.format(
             self._vndk_version))
         etc_buildrules = []
         for prebuilt in self.ETC_MODULES:
@@ -137,15 +137,13 @@ class GenBuildFile(object):
                 continue
             etc_buildrules.append(self._gen_etc_prebuilt(prebuilt))
 
-        with open(self._mkfile, 'w') as mkfile:
-            mkfile.write(self._gen_autogen_msg('#'))
-            mkfile.write('\n')
-            mkfile.write('LOCAL_PATH := $(call my-dir)\n')
-            mkfile.write('\n')
-            mkfile.write('\n\n'.join(etc_buildrules))
-            mkfile.write('\n')
+        with open(self._root_bpfile, 'w') as bpfile:
+            bpfile.write(self._gen_autogen_msg('/'))
+            bpfile.write('\n')
+            bpfile.write('\n'.join(etc_buildrules))
+            bpfile.write('\n')
 
-        logging.info('Successfully generated {}'.format(self._mkfile))
+        logging.info('Successfully generated {}'.format(self._root_bpfile))
 
     def generate_common_android_bp(self):
         """Autogenerates common/Android.bp."""
@@ -266,19 +264,22 @@ class GenBuildFile(object):
         etc_path = self._etc_paths[prebuilt]
         etc_sub_path = etc_path[etc_path.index('/') + 1:]
 
-        return ('#######################################\n'
-                '# {prebuilt}\n'
-                'include $(CLEAR_VARS)\n'
-                'LOCAL_MODULE := {versioned_name}\n'
-                'LOCAL_SRC_FILES := ../$(TARGET_ARCH)/{etc_sub_path}\n'
-                'LOCAL_MODULE_CLASS := ETC\n'
-                'LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)\n'
-                'LOCAL_MODULE_STEM := $(LOCAL_MODULE)\n'
-                'include $(BUILD_PREBUILT)\n'.format(
-                    prebuilt=prebuilt,
-                    versioned_name=self._get_versioned_name(
-                        prebuilt, None, is_etc=True),
-                    etc_sub_path=etc_sub_path))
+        prebuilt_etc = ('prebuilt_etc {{\n'
+                        '{ind}name: "{versioned_name}",\n'
+                        '{ind}target: {{\n'.format(
+                            ind=self.INDENT,
+                            versioned_name=self._get_versioned_name(
+                                prebuilt, None, is_etc=True)))
+        for arch in self._snapshot_archs:
+            prebuilt_etc += ('{ind}{ind}android_{arch}: {{\n'
+                             '{ind}{ind}{ind}src: "{arch}/{etc_sub_path}",\n'
+                             '{ind}{ind}}},\n'.format(
+                                 ind=self.INDENT,
+                                 arch=arch,
+                                 etc_sub_path=etc_sub_path))
+        prebuilt_etc += ('{ind}}},\n'
+                         '}}\n'.format(ind=self.INDENT))
+        return prebuilt_etc
 
     def _gen_notice_filegroup(self, module):
         """Generates a notice filegroup build rule for a given module.
@@ -524,7 +525,7 @@ def main():
     utils.set_logging_config(args.verbose)
 
     buildfile_generator = GenBuildFile(install_dir, vndk_version)
-    buildfile_generator.generate_android_mk()
+    buildfile_generator.generate_root_android_bp()
     buildfile_generator.generate_common_android_bp()
     buildfile_generator.generate_android_bp()
 
diff --git a/vndk/snapshot/update.py b/vndk/snapshot/update.py
index 9f05a3306..051aac0c1 100644
--- a/vndk/snapshot/update.py
+++ b/vndk/snapshot/update.py
@@ -138,8 +138,8 @@ def revise_ld_config_txt_if_needed(vndk_version):
 
 
 def update_buildfiles(buildfile_generator):
-    logging.info('Generating Android.mk file...')
-    buildfile_generator.generate_android_mk()
+    logging.info('Generating root Android.bp file...')
+    buildfile_generator.generate_root_android_bp()
 
     logging.info('Generating common/Android.bp file...')
     buildfile_generator.generate_common_android_bp()
diff --git a/vndk/snapshot/utils.py b/vndk/snapshot/utils.py
index eae7b885a..7fed12819 100644
--- a/vndk/snapshot/utils.py
+++ b/vndk/snapshot/utils.py
@@ -25,9 +25,9 @@ import sys
 
 # Global Keys
 #   All paths are relative to install_dir: prebuilts/vndk/v{version}
+ROOT_BP_PATH = 'Android.bp'
 COMMON_DIR_NAME = 'common'
 COMMON_DIR_PATH = COMMON_DIR_NAME
-ANDROID_MK_PATH = os.path.join(COMMON_DIR_PATH, 'Android.mk')
 COMMON_BP_PATH = os.path.join(COMMON_DIR_PATH, 'Android.bp')
 CONFIG_DIR_PATH_PATTERN = '*/configs'
 MANIFEST_FILE_NAME = 'manifest.xml'