Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
313 lines
9.4 KiB
313 lines
9.4 KiB
|
|
_shell_find_runfiles = """ |
|
# --- begin runfiles.bash initialization --- |
|
# Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash). |
|
set -euo pipefail |
|
if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then |
|
if [[ -f "$0.runfiles_manifest" ]]; then |
|
export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest" |
|
elif [[ -f "$0.runfiles/MANIFEST" ]]; then |
|
export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST" |
|
elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then |
|
export RUNFILES_DIR="$0.runfiles" |
|
fi |
|
fi |
|
if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then |
|
source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash" |
|
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then |
|
source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \ |
|
"$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)" |
|
else |
|
echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash" |
|
exit 1 |
|
fi |
|
# --- end runfiles.bash initialization --- |
|
""" |
|
|
|
def _librule(name): |
|
return name + "_lib" |
|
|
|
def lua_cclibrary(name, srcs, hdrs = [], deps = [], luadeps = []): |
|
lib_rule = name + "_lib" |
|
so_rule = "lib" + name + ".so" |
|
so_file = _remove_prefix(name, "lua/") + ".so" |
|
|
|
native.cc_library( |
|
name = _librule(name), |
|
hdrs = hdrs, |
|
srcs = srcs, |
|
deps = deps + [_librule(dep) for dep in luadeps] + ["@lua//:liblua_headers"], |
|
) |
|
|
|
native.cc_binary( |
|
name = so_rule, |
|
linkshared = True, |
|
deps = [_librule(name)], |
|
) |
|
|
|
native.genrule( |
|
name = name + "_copy", |
|
srcs = [":" + so_rule], |
|
outs = [so_file], |
|
cmd = "cp $< $@", |
|
) |
|
|
|
native.filegroup( |
|
name = name, |
|
data = [so_file], |
|
) |
|
|
|
def _remove_prefix(str, prefix): |
|
if not str.startswith(prefix): |
|
fail("%s doesn't start with %s" % (str, prefix)) |
|
return str[len(prefix):] |
|
|
|
def _remove_suffix(str, suffix): |
|
if not str.endswith(suffix): |
|
fail("%s doesn't end with %s" % (str, suffix)) |
|
return str[:-len(suffix)] |
|
|
|
def lua_library(name, srcs, strip_prefix, luadeps = []): |
|
outs = [_remove_prefix(src, strip_prefix + "/") for src in srcs] |
|
native.genrule( |
|
name = name + "_copy", |
|
srcs = srcs, |
|
outs = outs, |
|
cmd = "cp $(SRCS) $(@D)", |
|
) |
|
|
|
native.filegroup( |
|
name = name, |
|
data = outs + luadeps, |
|
) |
|
|
|
def make_shell_script(name, contents, out): |
|
script_contents = (_shell_find_runfiles + contents).replace("$", "$$") |
|
native.genrule( |
|
name = "gen_" + name, |
|
outs = [out], |
|
cmd = "(cat <<'HEREDOC'\n%s\nHEREDOC\n) > $@" % script_contents, |
|
) |
|
|
|
def _lua_binary_or_test(name, luamain, luadeps, rule): |
|
script = name + ".sh" |
|
|
|
make_shell_script( |
|
name = "gen_" + name, |
|
out = script, |
|
contents = """ |
|
BASE=$(dirname $(rlocation upb/upb_c.so)) |
|
export LUA_CPATH="$BASE/?.so" |
|
export LUA_PATH="$BASE/?.lua" |
|
$(rlocation lua/lua) $(rlocation upb/tools/upbc.lua) "$@" |
|
""" |
|
) |
|
|
|
rule( |
|
name = name, |
|
srcs = [script], |
|
data = ["@lua//:lua", "@bazel_tools//tools/bash/runfiles", luamain] + luadeps, |
|
) |
|
|
|
def lua_binary(name, luamain, luadeps=[]): |
|
_lua_binary_or_test(name, luamain, luadeps, native.sh_binary) |
|
|
|
def lua_test(name, luamain, luadeps=[]): |
|
_lua_binary_or_test(name, luamain, luadeps, native.sh_test) |
|
|
|
def generated_file_staleness_test(name, outs, generated_pattern): |
|
"""Tests that checked-in file(s) match the contents of generated file(s). |
|
|
|
The resulting test will verify that all output files exist and have the |
|
correct contents. If the test fails, it can be invoked with --fix to |
|
bring the checked-in files up to date. |
|
|
|
Args: |
|
name: Name of the rule. |
|
outs: the checked-in files that are copied from generated files. |
|
generated_pattern: the pattern for transforming each "out" file into a |
|
generated file. For example, if generated_pattern="generated/%s" then |
|
a file foo.txt will look for generated file generated/foo.txt. |
|
""" |
|
|
|
script_name = name + ".py" |
|
script_src = "//:tools/staleness_test.py" |
|
|
|
# Filter out non-existing rules so Blaze doesn't error out before we even |
|
# run the test. |
|
existing_outs = native.glob(include = outs) |
|
|
|
# The file list contains a few extra bits of information at the end. |
|
# These get unpacked by the Config class in staleness_test_lib.py. |
|
file_list = outs + [generated_pattern, native.package_name() or ".", name] |
|
|
|
native.genrule( |
|
name = name + "_makescript", |
|
outs = [script_name], |
|
srcs = [script_src], |
|
testonly = 1, |
|
cmd = "cat $(location " + script_src + ") > $@; " + |
|
"sed -i.bak -e 's|INSERT_FILE_LIST_HERE|" + "\\\n ".join(file_list) + "|' $@", |
|
) |
|
|
|
native.py_test( |
|
name = name, |
|
srcs = [script_name], |
|
data = existing_outs + [generated_pattern % file for file in outs], |
|
deps = [ |
|
"//:staleness_test_lib", |
|
], |
|
) |
|
|
|
# upb_amalgamation() rule, with file_list aspect. |
|
|
|
SrcList = provider( |
|
fields = { |
|
'srcs' : 'list of srcs', |
|
'hdrs' : 'list of hdrs', |
|
} |
|
) |
|
|
|
def _file_list_aspect_impl(target, ctx): |
|
srcs = [] |
|
hdrs = [] |
|
for src in ctx.rule.attr.srcs: |
|
srcs += src.files.to_list() |
|
for hdr in ctx.rule.attr.hdrs: |
|
hdrs += hdr.files.to_list() |
|
return [SrcList(srcs = srcs, hdrs = hdrs)] |
|
|
|
_file_list_aspect = aspect( |
|
implementation = _file_list_aspect_impl, |
|
) |
|
|
|
def _upb_amalgamation(ctx): |
|
inputs = [] |
|
srcs = [] |
|
for lib in ctx.attr.libs: |
|
inputs += lib[SrcList].srcs |
|
inputs += lib[SrcList].hdrs |
|
srcs += [src for src in lib[SrcList].srcs if src.path.endswith("c")] |
|
ctx.actions.run( |
|
inputs = inputs, |
|
outputs = ctx.outputs.outs, |
|
arguments = ["", ctx.bin_dir.path + "/"] + [f.path for f in srcs], |
|
progress_message = "Making amalgamation", |
|
executable = ctx.executable.amalgamator, |
|
) |
|
|
|
upb_amalgamation = rule( |
|
implementation = _upb_amalgamation, |
|
attrs = { |
|
"amalgamator": attr.label( |
|
executable = True, |
|
cfg = "host", |
|
), |
|
"libs": attr.label_list(aspects = [_file_list_aspect]), |
|
"outs": attr.output_list(), |
|
} |
|
) |
|
|
|
# upb_proto_library() rule |
|
|
|
def _remove_up(string): |
|
if string.startswith("../"): |
|
string = string[3:] |
|
pos = string.find("/") |
|
string = string[pos + 1:] |
|
|
|
return _remove_suffix(string, ".proto") |
|
|
|
def _upb_proto_srcs_impl(ctx, suffix): |
|
sources = [] |
|
outs = [] |
|
include_dirs = {} |
|
for dep in ctx.attr.deps: |
|
if hasattr(dep, 'proto'): |
|
for src in dep.proto.transitive_sources: |
|
sources.append(src) |
|
include_dir = _remove_suffix(src.path, _remove_up(src.short_path) + "." + src.extension) |
|
if include_dir: |
|
include_dirs[include_dir] = True |
|
outs.append(ctx.actions.declare_file(_remove_up(src.short_path) + suffix + ".h")) |
|
outs.append(ctx.actions.declare_file(_remove_up(src.short_path) + suffix + ".c")) |
|
outdir = _remove_suffix(outs[-1].path, _remove_up(src.short_path) + suffix + ".c") |
|
|
|
source_paths = [d.path for d in sources] |
|
include_args = ["-I" + root for root in include_dirs.keys()] |
|
|
|
ctx.actions.run( |
|
inputs = [ctx.executable.upbc] + sources, |
|
outputs = outs, |
|
executable = ctx.executable.protoc, |
|
arguments = ["--upb_out", outdir, "--plugin=protoc-gen-upb=" + ctx.executable.upbc.path] + include_args + source_paths, |
|
progress_message = "Generating upb protos", |
|
) |
|
|
|
return [DefaultInfo(files = depset(outs))] |
|
|
|
def _upb_proto_library_srcs_impl(ctx): |
|
return _upb_proto_srcs_impl(ctx, ".upb") |
|
|
|
def _upb_proto_reflection_library_srcs_impl(ctx): |
|
return _upb_proto_srcs_impl(ctx, ".upbdefs") |
|
|
|
_upb_proto_library_srcs = rule( |
|
implementation = _upb_proto_library_srcs_impl, |
|
attrs = { |
|
"upbc": attr.label( |
|
executable = True, |
|
cfg = "host", |
|
), |
|
"protoc": attr.label( |
|
executable = True, |
|
cfg = "host", |
|
default = "@com_google_protobuf//:protoc", |
|
), |
|
"deps": attr.label_list(), |
|
} |
|
) |
|
|
|
def upb_proto_library(name, deps, upbc): |
|
srcs_rule = name + "_srcs.cc" |
|
_upb_proto_library_srcs( |
|
name = srcs_rule, |
|
upbc = upbc, |
|
deps = deps, |
|
) |
|
native.cc_library( |
|
name = name, |
|
srcs = [":" + srcs_rule], |
|
deps = [":upb"], |
|
copts = ["-Ibazel-out/k8-fastbuild/bin"], |
|
) |
|
|
|
_upb_proto_reflection_library_srcs = rule( |
|
implementation = _upb_proto_reflection_library_srcs_impl, |
|
attrs = { |
|
"upbc": attr.label( |
|
executable = True, |
|
cfg = "host", |
|
), |
|
"protoc": attr.label( |
|
executable = True, |
|
cfg = "host", |
|
default = "@com_google_protobuf//:protoc", |
|
), |
|
"deps": attr.label_list(), |
|
} |
|
) |
|
|
|
def upb_proto_reflection_library(name, deps, upbc): |
|
srcs_rule = name + "_defsrcs.cc" |
|
_upb_proto_reflection_library_srcs( |
|
name = srcs_rule, |
|
upbc = upbc, |
|
deps = deps, |
|
) |
|
native.cc_library( |
|
name = name, |
|
srcs = [":" + srcs_rule], |
|
deps = [":upb"], |
|
copts = ["-Ibazel-out/k8-fastbuild/bin"], |
|
)
|
|
|