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https://gitlab.com/pulsechaincom/prysm-pulse.git
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bba8dd6f1e
* Run buildifier * Other BUILD.bazel cleanup, rm swagger stuff. --------- Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
"""
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A rule that uses the generated pb.go files from a go_proto_library target to generate SSZ marshal
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and unmarshal functions as pointer receivers on the specified objects. To use this rule, provide a
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go_proto_library target and specify the structs to generate methods in the "objs" field. Lastly,
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include your new target as a source for the go_library that embeds the go_proto_library.
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Example:
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go_proto_library(
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name = "example_go_proto",
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...
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)
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ssz_gen_marshal(
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name = "ssz_generated_sources",
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go_proto = ":example_go_proto",
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objs = [ # omit this field to generate for all structs in the package.
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"AddressBook",
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"Person",
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],
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)
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go_library(
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name = "go_default_library",
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srcs = [":ssz_generated_sources"],
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embed = [":example_go_proto"],
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deps = SSZ_DEPS,
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)
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"""
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load(
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"@io_bazel_rules_go//go:def.bzl",
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"GoLibrary",
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"GoSource",
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)
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def _ssz_go_proto_library_impl(ctx):
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if ctx.var.get("ssz"):
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fail("--define=ssz=<value> is no longer supported, please use --//proto:network=<value>")
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if ctx.attr.go_proto != None:
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go_proto = ctx.attr.go_proto
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input_files = go_proto[OutputGroupInfo].go_generated_srcs.to_list()
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package_path = input_files[0].dirname
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elif hasattr(ctx.attr, "srcs") and len(ctx.attr.srcs) > 0:
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package_path = ctx.attr.srcs[0].files.to_list()[0].dirname
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input_files = ctx.attr.srcs[0].files.to_list()
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else:
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fail("Must have go_proto or srcs")
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# Run the tool.
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output = ctx.outputs.out
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args = [
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"--output=%s" % output.path,
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"--path=%s" % package_path,
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]
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if hasattr(ctx.attr, "includes") and len(ctx.attr.includes) > 0:
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incs = []
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for include in ctx.attr.includes:
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incs.append(include[GoSource].srcs[0].dirname)
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input_files += include[GoSource].srcs
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args.append("--include=%s" % ",".join(incs))
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if len(ctx.attr.objs) > 0:
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args.append("--objs=%s" % ",".join(ctx.attr.objs))
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ctx.actions.run(
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executable = ctx.executable.sszgen,
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progress_message = "Generating ssz marshal and unmarshal functions",
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inputs = input_files,
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arguments = args,
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outputs = [output],
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)
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ssz_gen_marshal = rule(
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implementation = _ssz_go_proto_library_impl,
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attrs = {
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"srcs": attr.label_list(allow_files = True),
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"go_proto": attr.label(providers = [GoLibrary]),
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"sszgen": attr.label(
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default = Label("@com_github_prysmaticlabs_fastssz//sszgen:sszgen"),
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executable = True,
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cfg = "exec",
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),
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"objs": attr.string_list(),
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"includes": attr.label_list(providers = [GoLibrary]),
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},
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outputs = {"out": "generated.ssz.go"},
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)
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SSZ_DEPS = ["@com_github_prysmaticlabs_fastssz//:go_default_library"]
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