Import of the watch repository from Pebble

third_party/nanopb/generator/proto/_utils.py

@@ -0,0 +1,66 @@
+import sys
+import subprocess
+import os.path
+
+def has_grpcio_protoc():
+    # type: () -> bool
+    """ checks if grpcio-tools protoc is installed"""
+
+    try:
+        import grpc_tools.protoc
+    except ImportError:
+        return False
+    return True
+
+
+def invoke_protoc(argv):
+    # type: (list) -> typing.Any
+    """
+    Invoke protoc.
+
+    This routine will use grpcio-provided protoc if it exists,
+    using system-installed protoc as a fallback.
+
+    Args:
+        argv: protoc CLI invocation, first item must be 'protoc'
+    """
+
+    # Add current directory to include path if nothing else is specified
+    if not [x for x in argv if x.startswith('-I')]:
+        argv.append("-I.")
+
+    # Add default protoc include paths
+    nanopb_include = os.path.dirname(os.path.abspath(__file__))
+    argv.append('-I' + nanopb_include)
+
+    if has_grpcio_protoc():
+        import grpc_tools.protoc as protoc
+        import pkg_resources
+        proto_include = pkg_resources.resource_filename('grpc_tools', '_proto')
+        argv.append('-I' + proto_include)
+
+        return protoc.main(argv)
+    else:
+        return subprocess.call(argv)
+
+def print_versions():
+    try:
+        if has_grpcio_protoc():
+            import grpc_tools.protoc
+            sys.stderr.write("Using grpcio-tools protoc from " + grpc_tools.protoc.__file__ + "\n")
+        else:
+            sys.stderr.write("Using protoc from system path\n")
+
+        invoke_protoc(['protoc', '--version'])
+    except Exception as e:
+        sys.stderr.write("Failed to determine protoc version: " + str(e) + "\n")
+
+    try:
+        import google.protobuf
+        sys.stderr.write("Using python-protobuf from " + google.protobuf.__file__ + "\n")
+        sys.stderr.write("Python-protobuf version: " + google.protobuf.__version__ + "\n")
+    except Exception as e:
+        sys.stderr.write("Failed to determine python-protobuf version: " + str(e) + "\n")
+
+if __name__ == '__main__':
+    print_versions()