revert gen_build_yaml.py

src/boringssl/gen_build_yaml.py

@@ -14,20 +14,20 @@
 # limitations under the License.
 
 from __future__ import print_function
-from collections import OrderedDict
-
-import json
 import shutil
 import sys
 import os
 import yaml
 
+sys.dont_write_bytecode = True
+
+boring_ssl_root = os.path.abspath(
+    os.path.join(os.path.dirname(sys.argv[0]),
+                 '../../third_party/boringssl-with-bazel/src'))
+sys.path.append(os.path.join(boring_ssl_root, 'util'))
+
 try:
-    sources_path = os.path.abspath(
-        os.path.join(os.path.dirname(sys.argv[0]),
-                     '../../third_party/boringssl-with-bazel/sources.json'))
-    with open(sources_path, 'r') as s:
-        sources = json.load(s)
+    import generate_build_files
 except ImportError:
     print(yaml.dump({}))
     sys.exit()
@@ -38,18 +38,12 @@ def map_dir(filename):
 
 
 class Grpc(object):
-    """ Adapter for boring-SSL json sources files. """
+    """Implements a "platform" in the sense of boringssl's generate_build_files.py"""
+    yaml = None
 
-    def __init__(self, sources):
-        self.yaml = None
-        self.WriteFiles(sources)
-
-    def WriteFiles(self, files):
+    def WriteFiles(self, files, asm_outputs):
         test_binaries = ['ssl_test', 'crypto_test']
-        asm_outputs = {
-            key: value for key, value in files.items() if any(
-                f.endswith(".S") or f.endswith(".asm") for f in value)
-        }
+
         self.yaml = {
             '#':
                 'generated with src/boringssl/gen_build_yaml.py',
@@ -126,5 +120,29 @@ class Grpc(object):
         }
 
 
-grpc_platform = Grpc(sources)
-print(yaml.dump(grpc_platform.yaml))
+os.chdir(os.path.dirname(sys.argv[0]))
+os.mkdir('src')
+try:
+    for f in os.listdir(boring_ssl_root):
+        os.symlink(os.path.join(boring_ssl_root, f), os.path.join('src', f))
+
+    grpc_platform = Grpc()
+    # We use a hack to run boringssl's util/generate_build_files.py as part of this script.
+    # The call will populate "grpc_platform" with boringssl's source file metadata.
+    # As a side effect this script generates err_data.c and crypto_test_data.cc (requires golang)
+    # Both of these files are already available under third_party/boringssl-with-bazel
+    # so we don't need to generate them again, but there's no option to disable that behavior.
+    # - crypto_test_data.cc is required to run boringssl_crypto_test but we already
+    #   use the copy under third_party/boringssl-with-bazel so we just delete it
+    # - err_data.c is already under third_party/boringssl-with-bazel so we just delete it
+    generate_build_files.main([grpc_platform])
+
+    print(yaml.dump(grpc_platform.yaml))
+
+finally:
+    # we don't want err_data.c and crypto_test_data.cc (see comment above)
+    if os.path.exists('err_data.c'):
+        os.remove('err_data.c')
+    if os.path.exists('crypto_test_data.cc'):
+        os.remove('crypto_test_data.cc')
+    shutil.rmtree('src')