| # 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 that aren't digits or '.' 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 = "" |
| string = str(version) |
| for i in range(len(string)): |
| ch = string[i] |
| 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 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 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 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 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 config_common.FeatureFlagInfo(value = _strip_version( |
| xcode_config.sdk_version_for_platform( |
| apple_common.platform.macos, |
| ), |
| )) |
| |
| xcode_version_flag = rule( |
| implementation = _xcode_version_flag_impl, |
| attrs = { |
| "_xcode_config": attr.label(default = configuration_field( |
| fragment = "apple", |
| name = "xcode_config_label", |
| )), |
| }, |
| ) |
| |
| ios_sdk_version_flag = rule( |
| implementation = _ios_sdk_version_flag_impl, |
| attrs = { |
| "_xcode_config": attr.label(default = configuration_field( |
| fragment = "apple", |
| name = "xcode_config_label", |
| )), |
| }, |
| ) |
| |
| tvos_sdk_version_flag = rule( |
| implementation = _tvos_sdk_version_flag_impl, |
| attrs = { |
| "_xcode_config": attr.label(default = configuration_field( |
| fragment = "apple", |
| name = "xcode_config_label", |
| )), |
| }, |
| ) |
| |
| watchos_sdk_version_flag = rule( |
| implementation = _watchos_sdk_version_flag_impl, |
| attrs = { |
| "_xcode_config": attr.label(default = configuration_field( |
| fragment = "apple", |
| name = "xcode_config_label", |
| )), |
| }, |
| ) |
| |
| macos_sdk_version_flag = rule( |
| implementation = _macos_sdk_version_flag_impl, |
| attrs = { |
| "_xcode_config": attr.label(default = configuration_field( |
| fragment = "apple", |
| name = "xcode_config_label", |
| )), |
| }, |
| ) |