// Copyright 2016 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.
package com.google.devtools.build.lib.rules.objc;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.skylark.SkylarkRuleContext;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.packages.Attribute.SplitTransitionProvider;
import com.google.devtools.build.lib.packages.Info;
import com.google.devtools.build.lib.packages.NativeInfo;
import com.google.devtools.build.lib.packages.Provider;
import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;
import com.google.devtools.build.lib.packages.SkylarkAspect;
import com.google.devtools.build.lib.rules.apple.AppleConfiguration;
import com.google.devtools.build.lib.rules.apple.ApplePlatform;
import com.google.devtools.build.lib.rules.apple.ApplePlatform.PlatformType;
import com.google.devtools.build.lib.rules.apple.AppleToolchain;
import com.google.devtools.build.lib.rules.apple.DottedVersion;
import com.google.devtools.build.lib.rules.apple.XcodeConfigProvider;
import com.google.devtools.build.lib.rules.apple.XcodeVersionProperties;
import com.google.devtools.build.lib.rules.objc.AppleBinary.AppleBinaryOutput;
import com.google.devtools.build.lib.rules.objc.ObjcProvider.Key;
import com.google.devtools.build.lib.skylarkinterface.Param;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.syntax.Environment;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.Runtime;
import com.google.devtools.build.lib.syntax.SkylarkDict;
import com.google.devtools.build.lib.syntax.SkylarkNestedSet;
import com.google.devtools.build.lib.syntax.SkylarkSignatureProcessor;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.Map;
import javax.annotation.Nullable;
/**
* A class that exposes apple rule implementation internals to skylark.
*/
@SkylarkModule(
name = "apple_common",
doc = "Functions for skylark to access internals of the apple rule implementations."
)
public class AppleSkylarkCommon {
@VisibleForTesting
public static final String BAD_KEY_ERROR = "Argument %s not a recognized key, 'providers',"
+ " or 'direct_dep_providers'.";
@VisibleForTesting
public static final String BAD_SET_TYPE_ERROR =
"Value for key %s must be a set of %s, instead found set of %s.";
@VisibleForTesting
public static final String BAD_PROVIDERS_ITER_ERROR =
"Value for argument 'providers' must be a list of ObjcProvider instances, instead found %s.";
@VisibleForTesting
public static final String BAD_PROVIDERS_ELEM_ERROR =
"Value for argument 'providers' must be a list of ObjcProvider instances, instead found "
+ "iterable with %s.";
@VisibleForTesting
public static final String NOT_SET_ERROR = "Value for key %s must be a set, instead found %s.";
@VisibleForTesting
public static final String MISSING_KEY_ERROR = "No value for required key %s was present.";
@Nullable private Info platformType;
@Nullable private Info platform;
private ObjcProtoAspect objcProtoAspect;
public AppleSkylarkCommon(ObjcProtoAspect objcProtoAspect) {
this.objcProtoAspect = objcProtoAspect;
}
@SkylarkCallable(
name = "apple_toolchain",
doc = "Utilities for resolving items from the apple toolchain."
)
public AppleToolchain getAppleToolchain() {
return new AppleToolchain();
}
@SkylarkCallable(
name = "platform_type",
doc =
"An enum-like struct that contains the following fields corresponding to Apple platform "
+ "types:
ios
macos
tvos
watchos
" + "These values can be passed to methods that expect a platform type, like the 'apple' " + "configuration fragment's " + "multi_arch_platform method.
" + "Example:
" + "
\n" + "ctx.fragments.apple.multi_arch_platform(apple_common.platform_type.ios)\n" + "", structField = true ) public Info getPlatformTypeStruct() { if (platformType == null) { platformType = PlatformType.getSkylarkStruct(); } return platformType; } @SkylarkCallable( name = "platform", doc = "An enum-like struct that contains the following fields corresponding to Apple " + "platforms:
ios_device
ios_simulator
macos
tvos_device
tvos_simulator
watchos_device
watchos_device
"
+ "These values can be passed to methods that expect a platform, like "
+ "apple.sdk_version_for_platform.",
structField = true
)
public Info getPlatformStruct() {
if (platform == null) {
platform = ApplePlatform.getSkylarkStruct();
}
return platform;
}
@SkylarkCallable(
name = XcodeVersionProperties.SKYLARK_NAME,
doc =
"The constructor/key for the XcodeVersionProperties
provider.
"
+ "If a target propagates the XcodeVersionProperties
provider,"
+ " use this as the key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.XcodeVersionProperties]\n" + "", structField = true ) public Provider getXcodeVersionPropertiesConstructor() { return XcodeVersionProperties.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = XcodeConfigProvider.SKYLARK_NAME, doc = "The constructor/key for the
XcodeVersionConfig
provider.",
structField = true
)
public Provider getXcodeVersionConfigConstructor() {
return XcodeConfigProvider.PROVIDER;
}
@SkylarkCallable(
// TODO(b/63899207): This currently does not match ObjcProvider.SKYLARK_NAME as it requires
// a migration of existing skylark rules.
name = "Objc",
doc =
"The constructor/key for the Objc
provider."
+ "If a target propagates the Objc
provider, use this as the "
+ "key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.Objc]\n" + "", structField = true ) public Provider getObjcProviderConstructor() { return ObjcProvider.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleDynamicFrameworkInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleDynamicFramework
provider."
+ "If a target propagates the AppleDynamicFramework
provider, use this "
+ "as the key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleDynamicFramework]\n" + "", structField = true ) public Provider getAppleDynamicFrameworkConstructor() { return AppleDynamicFrameworkInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleDylibBinaryInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleDylibBinary
provider."
+ "If a target propagates the AppleDylibBinary
provider, use this as the "
+ "key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleDylibBinary]\n" + "", structField = true ) public Provider getAppleDylibBinaryConstructor() { return AppleDylibBinaryInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleExecutableBinaryInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleExecutableBinary
provider."
+ "If a target propagates the AppleExecutableBinary
provider,"
+ " use this as the key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleExecutableBinary]\n" + "", structField = true ) public Provider getAppleExecutableBinaryConstructor() { return AppleExecutableBinaryInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleStaticLibraryInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleStaticLibrary
provider."
+ "If a target propagates the AppleStaticLibrary
provider, use "
+ "this as the key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleStaticLibrary]\n" + "", structField = true ) public AppleStaticLibraryInfo.Provider getAppleStaticLibraryProvider() { return AppleStaticLibraryInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleDebugOutputsInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleDebugOutputs
provider."
+ "If a target propagates the AppleDebugOutputs
provider, use this as the "
+ "key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleDebugOutputs]\n" + "", structField = true ) public Provider getAppleDebugOutputsConstructor() { return AppleDebugOutputsInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = AppleLoadableBundleBinaryInfo.SKYLARK_NAME, doc = "The constructor/key for the
AppleLoadableBundleBinary
provider."
+ "If a target propagates the AppleLoadableBundleBinary
provider, "
+ "use this as the key with which to retrieve it. Example:
"
+ "
\n" + "dep = ctx.attr.deps[0]\n" + "p = dep[apple_common.AppleLoadableBundleBinary]\n" + "", structField = true ) public Provider getAppleLoadableBundleBinaryConstructor() { return AppleLoadableBundleBinaryInfo.SKYLARK_CONSTRUCTOR; } @SkylarkCallable( name = "apple_host_system_env", doc = "Returns a dict of environment variables that should be set " + "for actions that need to run build tools on an Apple host system, such as the " + " version of Xcode that should be used. The keys are variable names and the values " + " are their corresponding values." ) public ImmutableMap
dict
of environment variables that should be set for actions "
+ "that build targets of the given Apple platform type. For example, this dictionary "
+ "contains variables that denote the platform name and SDK version with which to "
+ "build. The keys are variable names and the values are their corresponding values."
)
public ImmutableMapUse of this transition requires that the 'platform_type' and 'minimum_os_version'" + " string attributes are defined and mandatory on the rule.
" + "The value of the platform_type attribute will dictate the target architectures " + " for which dependencies along this configuration transition will be built.
" + "Options are:
" + "ios
: architectures gathered from --ios_multi_cpus
.macos
: architectures gathered from --macos_cpus
.tvos
: architectures gathered from --tvos_cpus
.watchos
: architectures gathered from --watchos_cpus
."
+ "minimum_os_version should be a dotted version string such as '7.3', and is used to"
+ " set the minimum operating system on the configuration similarly based on platform"
+ " type. For example, specifying platform_type 'ios' and minimum_os_version '8.0' will"
+ " ensure that dependencies are built with minimum iOS version '8.0'.",
structField = true
)
public SplitTransitionProvider getMultiArchSplitProvider() {
return new MultiArchSplitTransitionProvider();
}
@SkylarkCallable(
name = "new_objc_provider",
doc = "Creates a new ObjcProvider instance.",
parameters = {
@Param(
name = "uses_swift",
type = Boolean.class,
defaultValue = "False",
named = true,
positional = false,
doc = "Whether this provider should enable Swift support."
)
},
extraKeywords =
@Param(
name = "kwargs",
type = SkylarkDict.class,
defaultValue = "{}",
doc = "Dictionary of arguments."
),
useEnvironment = true
)
// This method is registered statically for skylark, and never called directly.
public ObjcProvider newObjcProvider(
Boolean usesSwift,
SkylarkDict, ?> kwargs,
Environment environment) {
boolean disableObjcResourceKeys =
environment.getSemantics().incompatibleDisableObjcProviderResources();
ObjcProvider.Builder resultBuilder = new ObjcProvider.Builder(environment.getSemantics());
if (usesSwift) {
resultBuilder.add(ObjcProvider.FLAG, ObjcProvider.Flag.USES_SWIFT);
}
for (Map.Entry, ?> entry : kwargs.entrySet()) {
Key> key = ObjcProvider.getSkylarkKeyForString((String) entry.getKey());
if (key != null) {
if (disableObjcResourceKeys && ObjcProvider.isDeprecatedResourceKey(key)) {
throw new IllegalArgumentException(String.format(BAD_KEY_ERROR, entry.getKey()));
}
resultBuilder.addElementsFromSkylark(key, entry.getValue());
} else if (entry.getKey().equals("providers")) {
resultBuilder.addProvidersFromSkylark(entry.getValue());
} else if (entry.getKey().equals("direct_dep_providers")) {
resultBuilder.addDirectDepProvidersFromSkylark(entry.getValue());
} else {
throw new IllegalArgumentException(String.format(BAD_KEY_ERROR, entry.getKey()));
}
}
return resultBuilder.build();
}
@SkylarkCallable(
name = "new_dynamic_framework_provider",
doc = "Creates a new AppleDynamicFramework provider instance.",
parameters = {
@Param(
name = AppleDynamicFrameworkInfo.DYLIB_BINARY_FIELD_NAME,
type = Artifact.class,
named = true,
positional = false,
doc = "The dylib binary artifact of the dynamic framework."
),
@Param(
name = AppleDynamicFrameworkInfo.OBJC_PROVIDER_FIELD_NAME,
type = ObjcProvider.class,
named = true,
positional = false,
doc =
"An ObjcProvider which contains information about the transitive "
+ "dependencies linked into the binary."
),
@Param(
name = AppleDynamicFrameworkInfo.FRAMEWORK_DIRS_FIELD_NAME,
type = SkylarkNestedSet.class,
generic1 = String.class,
named = true,
noneable = true,
positional = false,
defaultValue = "None",
doc =
"The framework path names used as link inputs in order to link against the dynamic "
+ "framework."
),
@Param(
name = AppleDynamicFrameworkInfo.FRAMEWORK_FILES_FIELD_NAME,
type = SkylarkNestedSet.class,
generic1 = Artifact.class,
named = true,
noneable = true,
positional = false,
defaultValue = "None",
doc =
"The full set of artifacts that should be included as inputs to link against the "
+ "dynamic framework"
)
}
)
public AppleDynamicFrameworkInfo newDynamicFrameworkProvider(
Artifact dylibBinary,
ObjcProvider depsObjcProvider,
Object dynamicFrameworkDirs,
Object dynamicFrameworkFiles) {
NestedSet This API is highly experimental and subject to change at any time. Do not "
+ "depend on the stability of this function at this time.",
mandatoryPositionals = 1 // The SkylarkRuleContext.
)
// TODO(b/70937317): Iterate on, improve, and solidify this API.
public NativeInfo linkMultiArchBinary(SkylarkRuleContext skylarkRuleContext)
throws EvalException, InterruptedException {
try {
RuleContext ruleContext = skylarkRuleContext.getRuleContext();
AppleBinaryOutput appleBinaryOutput = AppleBinary.linkMultiArchBinary(ruleContext);
return appleBinaryOutput.getBinaryInfoProvider();
} catch (RuleErrorException | ActionConflictException exception) {
throw new EvalException(null, exception);
}
}
@SkylarkCallable(
name = "dotted_version",
doc = "Creates a new DottedVersion instance.",
parameters = {
@Param(
name = "version",
type = String.class,
doc = "The string representation of the DottedVersion."
)
}
)
public DottedVersion dottedVersion(String version) {
return DottedVersion.fromString(version);
}
@SkylarkCallable(
name = "objc_proto_aspect",
doc =
"objc_proto_aspect gathers the proto dependencies of the attached rule target,"
+ "and propagates the proto values of its dependencies through the ObjcProto provider.",
structField = true
)
public SkylarkAspect getObjcProtoAspect() {
return objcProtoAspect;
}
static {
SkylarkSignatureProcessor.configureSkylarkFunctions(AppleSkylarkCommon.class);
}
}
apple_binary
rule, and is "
+ "exposed as an API to iterate on migration of apple_binary
to skylark.\n"
+ "