Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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# Copyright (c) 2009-2021, Google LLC
# All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file or at
# https://developers.google.com/open-source/licenses/bsd
"""Internal rules for building upb."""
6 years ago
_DEFAULT_CPPOPTS = []
_DEFAULT_COPTS = []
# begin:github_only
_DEFAULT_CPPOPTS.extend([
"-Wextra",
# "-Wshorten-64-to-32", # not in GCC (and my Kokoro images doesn't have Clang)
"-Wno-unused-parameter",
"-Wno-long-long",
])
_DEFAULT_COPTS.extend([
"-std=c99",
"-Wall",
"-Wstrict-prototypes",
# GCC (at least) emits spurious warnings for this that cannot be fixed
# without introducing redundant initialization (with runtime cost):
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635
#"-Wno-maybe-uninitialized",
])
# end:github_only
UPB_DEFAULT_CPPOPTS = select({
"//upb:windows": [],
"//conditions:default": _DEFAULT_CPPOPTS,
})
UPB_DEFAULT_COPTS = select({
"//upb:windows": [],
"//upb:fasttable_enabled_setting": ["-std=gnu99", "-DUPB_ENABLE_FASTTABLE"],
"//conditions:default": _DEFAULT_COPTS,
})
5 years ago
runfiles_init = """\
# --- begin runfiles.bash initialization v2 ---
# Copy-pasted from the Bazel Bash runfiles library v2.
set -uo pipefail; f=bazel_tools/tools/bash/runfiles/runfiles.bash
source "${RUNFILES_DIR:-/dev/null}/$f" 2>/dev/null || \
source "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" 2>/dev/null || \
source "$0.runfiles/$f" 2>/dev/null || \
source "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
source "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
{ echo>&2 "ERROR: cannot find $f"; exit 1; }; f=; set -e
# --- end runfiles.bash initialization v2 ---
"""
def _get_real_short_path(file):
# For some reason, files from other archives have short paths that look like:
# ../com_google_protobuf/google/protobuf/descriptor.proto
short_path = file.short_path
if short_path.startswith("../"):
second_slash = short_path.index("/", 3)
short_path = short_path[second_slash + 1:]
return short_path
def _get_real_root(file):
real_short_path = _get_real_short_path(file)
return file.path[:-len(real_short_path) - 1]
def _get_real_roots(files):
roots = {}
for file in files:
real_root = _get_real_root(file)
if real_root:
roots[real_root] = True
return roots.keys()
def make_shell_script(name, contents, out):
contents = contents.replace("$", "$$")
native.genrule(
name = "gen_" + name,
outs = [out],
cmd = "(cat <<'HEREDOC'\n%s\nHEREDOC\n) > $@" % contents,
)