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