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# Copyright 2017 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Rules that allows select() to differentiate between Apple OS versions."""
def _strip_version(version):
"""Strip trailing characters from version names.
Some OS versions look like "9.0gm", which is not useful for select()
statements. Thus, we strip the trailing "gm" part.
Args:
version: the version string
Returns:
The version with trailing letters stripped.
"""
result = ""
for ch in str(version):
if not ch.isdigit() and ch != ".":
break
result += ch
return result
def _xcode_version_flag_impl(ctx):
"""A rule that allows select() to differentiate between Xcode versions."""
xcode_config = ctx.attr._xcode_config[apple_common.XcodeVersionConfig]
return struct(providers = [
config_common.FeatureFlagInfo(value = _strip_version(
xcode_config.xcode_version()))])
def _ios_sdk_version_flag_impl(ctx):
"""A rule that allows select() to select based on the iOS SDK version."""
xcode_config = ctx.attr._xcode_config[apple_common.XcodeVersionConfig]
return struct(providers = [
config_common.FeatureFlagInfo(value = _strip_version(
xcode_config.sdk_version_for_platform(
apple_common.platform.ios_device)))])
def _tvos_sdk_version_flag_impl(ctx):
"""A rule that allows select() to select based on the tvOS SDK version."""
xcode_config = ctx.attr._xcode_config[apple_common.XcodeVersionConfig]
return struct(providers = [
config_common.FeatureFlagInfo(value = _strip_version(
xcode_config.sdk_version_for_platform(
apple_common.platform.tvos_device)))])
def _watchos_sdk_version_flag_impl(ctx):
"""A rule that allows select() to select based on the watchOS SDK version."""
xcode_config = ctx.attr._xcode_config[apple_common.XcodeVersionConfig]
return struct(providers = [
config_common.FeatureFlagInfo(value = _strip_version(
xcode_config.sdk_version_for_platform(
apple_common.platform.watchos_device)))])
def _macos_sdk_version_flag_impl(ctx):
"""A rule that allows select() to select based on the macOS SDK version."""
xcode_config = ctx.attr._xcode_config[apple_common.XcodeVersionConfig]
return struct(providers = [
config_common.FeatureFlagInfo(value = _strip_version(
xcode_config.sdk_version_for_platform(
apple_common.platform.macos_device)))])
xcode_version_flag = rule(
implementation = _xcode_version_flag_impl,
attrs = {
"_xcode_config": attr.label(default=Label("//tools/osx:current_xcode_config")),
})
ios_sdk_version_flag = rule(
implementation = _ios_sdk_version_flag_impl,
attrs = {
"_xcode_config": attr.label(default=Label("//tools/osx:current_xcode_config")),
})
tvos_sdk_version_flag = rule(
implementation = _tvos_sdk_version_flag_impl,
attrs = {
"_xcode_config": attr.label(default=Label("//tools/osx:current_xcode_config")),
})
watchos_sdk_version_flag = rule(
implementation = _watchos_sdk_version_flag_impl,
attrs = {
"_xcode_config": attr.label(default=Label("//tools/osx:current_xcode_config")),
})
macos_sdk_version_flag = rule(
implementation = _macos_sdk_version_flag_impl,
attrs = {
"_xcode_config": attr.label(default=Label("//tools/osx:current_xcode_config")),
})
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