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Diffstat (limited to 'third_party/upb/lua/lua_proto_library.bzl')
| -rw-r--r-- | third_party/upb/lua/lua_proto_library.bzl | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/third_party/upb/lua/lua_proto_library.bzl b/third_party/upb/lua/lua_proto_library.bzl deleted file mode 100644 index cc1486a60b..0000000000 --- a/third_party/upb/lua/lua_proto_library.bzl +++ /dev/null @@ -1,154 +0,0 @@ -# Copyright (c) 2009-2021, Google LLC -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# * Neither the name of Google LLC nor the -# names of its contributors may be used to endorse or promote products -# derived from this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -# DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY -# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -"""lua_proto_library(): a rule for building Lua protos.""" - -load("@bazel_skylib//lib:paths.bzl", "paths") - -# Generic support code ######################################################### - -# begin:github_only -_is_google3 = False -# end:github_only - -# begin:google_only -# _is_google3 = True -# end:google_only - -def _get_real_short_path(file): - # For some reason, files from other archives have short paths that look like: - # ../com_google_protobuf/google/protobuf/descriptor.proto - short_path = file.short_path - if short_path.startswith("../"): - second_slash = short_path.index("/", 3) - short_path = short_path[second_slash + 1:] - - # Sometimes it has another few prefixes like: - # _virtual_imports/any_proto/google/protobuf/any.proto - # benchmarks/_virtual_imports/100_msgs_proto/benchmarks/100_msgs.proto - # We want just google/protobuf/any.proto. - virtual_imports = "_virtual_imports/" - if virtual_imports in short_path: - short_path = short_path.split(virtual_imports)[1].split("/", 1)[1] - return short_path - -def _get_real_root(ctx, file): - real_short_path = _get_real_short_path(file) - root = file.path[:-len(real_short_path) - 1] - if not _is_google3 and ctx.rule.attr.strip_import_prefix: - root = paths.join(root, ctx.rule.attr.strip_import_prefix[1:]) - return root - -def _generate_output_file(ctx, src, extension): - package = ctx.label.package - if not _is_google3 and ctx.rule.attr.strip_import_prefix and ctx.rule.attr.strip_import_prefix != "/": - package = package[len(ctx.rule.attr.strip_import_prefix):] - real_short_path = _get_real_short_path(src) - real_short_path = paths.relativize(real_short_path, package) - output_filename = paths.replace_extension(real_short_path, extension) - ret = ctx.actions.declare_file(output_filename) - return ret - -# upb_proto_library / upb_proto_reflection_library shared code ################# - -_LuaFilesInfo = provider( - "A set of lua files generated from .proto files", - fields = ["files"], -) - -def _compile_upb_protos(ctx, proto_info, proto_sources): - files = [_generate_output_file(ctx, name, "_pb.lua") for name in proto_sources] - transitive_sets = proto_info.transitive_descriptor_sets.to_list() - ctx.actions.run( - inputs = depset( - direct = [proto_info.direct_descriptor_set], - transitive = [proto_info.transitive_descriptor_sets], - ), - tools = [ctx.executable._upbc], - outputs = files, - executable = ctx.executable._protoc, - arguments = [ - "--lua_out=" + _get_real_root(ctx, files[0]), - "--plugin=protoc-gen-lua=" + ctx.executable._upbc.path, - "--descriptor_set_in=" + ctx.configuration.host_path_separator.join([f.path for f in transitive_sets]), - ] + - [_get_real_short_path(file) for file in proto_sources], - progress_message = "Generating Lua protos for :" + ctx.label.name, - ) - return files - -def _lua_proto_rule_impl(ctx): - if len(ctx.attr.deps) != 1: - fail("only one deps dependency allowed.") - dep = ctx.attr.deps[0] - if _LuaFilesInfo not in dep: - fail("proto_library rule must generate _LuaFilesInfo (aspect should have handled this).") - files = dep[_LuaFilesInfo].files - return [ - DefaultInfo( - files = files, - data_runfiles = ctx.runfiles(files = files.to_list()), - ), - ] - -def _lua_proto_library_aspect_impl(target, ctx): - proto_info = target[ProtoInfo] - files = _compile_upb_protos(ctx, proto_info, proto_info.direct_sources) - deps = ctx.rule.attr.deps - transitive = [dep[_LuaFilesInfo].files for dep in deps if _LuaFilesInfo in dep] - return [_LuaFilesInfo(files = depset(direct = files, transitive = transitive))] - -# lua_proto_library() ########################################################## - -_lua_proto_library_aspect = aspect( - attrs = { - "_upbc": attr.label( - executable = True, - cfg = "exec", - default = "//lua:protoc-gen-lua", - ), - "_protoc": attr.label( - executable = True, - cfg = "exec", - default = "@com_google_protobuf//:protoc", - ), - }, - implementation = _lua_proto_library_aspect_impl, - provides = [_LuaFilesInfo], - attr_aspects = ["deps"], - fragments = ["cpp"], -) - -lua_proto_library = rule( - output_to_genfiles = True, - implementation = _lua_proto_rule_impl, - attrs = { - "deps": attr.label_list( - aspects = [_lua_proto_library_aspect], - allow_rules = ["proto_library"], - providers = [ProtoInfo], - ), - }, -) |