diff options
author | 2016-08-22 17:22:30 +0000 | |
---|---|---|
committer | 2016-08-23 09:29:11 +0000 | |
commit | 0b48ab671c41ce1f58d3ad2cc2dcdabb0aeda8d7 (patch) | |
tree | c4b776816d2027a6e38663ee81fbab4eaf5eba63 /src/main/java/com/google/devtools/build/lib/rules | |
parent | cb80dd51cf2a50d1d55c5eaf0a43a89f6dd744c9 (diff) |
Enables objc_proto_library to depend on other objc_proto_libraries. This only works when using the new version of objc_proto_library by adding the portable_proto_filters attribute.
--
MOS_MIGRATED_REVID=130952647
Diffstat (limited to 'src/main/java/com/google/devtools/build/lib/rules')
-rw-r--r-- | src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java | 16 | ||||
-rw-r--r-- | src/main/java/com/google/devtools/build/lib/rules/objc/ProtoAttributes.java | 66 |
2 files changed, 76 insertions, 6 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java index aad39c923e..326ce49f02 100644 --- a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java +++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java @@ -49,6 +49,19 @@ public class ObjcProtoLibraryRule implements RuleDefinition { static final String XCODE_GEN_ATTR = "$xcodegen"; + private final ObjcProtoAspect objcProtoAspect; + + /** + * Returns a newly built rule definition for objc_proto_library. + * + * @param objcProtoAspect Aspect that traverses the dependency graph through the deps attribute + * to gather all proto files and portable filters depended by + * objc_proto_library targets using the new protobuf compiler/library. + */ + public ObjcProtoLibraryRule(ObjcProtoAspect objcProtoAspect) { + this.objcProtoAspect = objcProtoAspect; + } + @Override public RuleClass build(Builder builder, final RuleDefinitionEnvironment env) { return builder @@ -59,7 +72,8 @@ public class ObjcProtoLibraryRule implements RuleDefinition { .override( attr("deps", LABEL_LIST) // Support for files in deps is for backwards compatibility. - .allowedRuleClasses("proto_library", "filegroup") + .allowedRuleClasses("proto_library", "filegroup", "objc_proto_library") + .aspect(objcProtoAspect) .legacyAllowAnyFileType()) /* <!-- #BLAZE_RULE(objc_proto_library).ATTRIBUTE(options_file) --> Optional options file to apply to protos which affects compilation (e.g. class diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ProtoAttributes.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ProtoAttributes.java index bc7e8bdc7a..e87febff44 100644 --- a/src/main/java/com/google/devtools/build/lib/rules/objc/ProtoAttributes.java +++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ProtoAttributes.java @@ -21,9 +21,11 @@ import com.google.common.annotations.VisibleForTesting; import com.google.common.base.Optional; import com.google.common.collect.ImmutableList; import com.google.devtools.build.lib.actions.Artifact; +import com.google.devtools.build.lib.analysis.AbstractConfiguredTarget; import com.google.devtools.build.lib.analysis.PrerequisiteArtifacts; import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode; import com.google.devtools.build.lib.analysis.RuleContext; +import com.google.devtools.build.lib.analysis.TransitiveInfoCollection; import com.google.devtools.build.lib.collect.nestedset.NestedSet; import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException; @@ -50,6 +52,18 @@ final class ProtoAttributes { static final String PORTABLE_PROTO_FILTERS_EMPTY_ERROR = "The portable_proto_filters attribute can't be empty"; + @VisibleForTesting + static final String OBJC_PROTO_LIB_DEP_IN_PROTOCOL_BUFFERS2_DEPS_ERROR = + "Protocol Buffers 2 objc_proto_library targets can't depend on other objc_proto_library " + + "targets. Please migrate your Protocol Buffers 2 objc_proto_library targets to use the " + + "portable_proto_filters attribute."; + + @VisibleForTesting + static final String PROTOCOL_BUFFERS2_IN_PROTOBUF_DEPS_ERROR = + "Protobuf objc_proto_library targets can't depend on Protocol Buffers 2 objc_proto_library " + + "targets. Please migrate your Protocol Buffers 2 objc_proto_library targets to use the " + + "portable_proto_filters attribute."; + private final RuleContext ruleContext; /** @@ -73,11 +87,6 @@ final class ProtoAttributes { * </ul> */ public void validate() throws RuleErrorException { - - if (getProtoFiles().isEmpty()) { - ruleContext.throwWithRuleError(NO_PROTOS_ERROR); - } - PrerequisiteArtifacts prerequisiteArtifacts = ruleContext.getPrerequisiteArtifacts("deps", Mode.TARGET); ImmutableList<Artifact> protos = prerequisiteArtifacts.filter(FileType.of(".proto")).list(); @@ -88,6 +97,10 @@ final class ProtoAttributes { if (ruleContext .attributes() .isAttributeValueExplicitlySpecified(ObjcProtoLibraryRule.PORTABLE_PROTO_FILTERS_ATTR)) { + if (getProtoFiles().isEmpty() && !hasObjcProtoLibraryDependencies()) { + ruleContext.throwWithRuleError(NO_PROTOS_ERROR); + } + if (getPortableProtoFilters().isEmpty()) { ruleContext.throwWithRuleError(PORTABLE_PROTO_FILTERS_EMPTY_ERROR); } @@ -98,7 +111,15 @@ final class ProtoAttributes { || getOptionsFile().isPresent()) { ruleContext.throwWithRuleError(PORTABLE_PROTO_FILTERS_NOT_EXCLUSIVE_ERROR); } + if (hasPB2Dependencies()) { + ruleContext.throwWithRuleError(PROTOCOL_BUFFERS2_IN_PROTOBUF_DEPS_ERROR); + } + } else { + if (getProtoFiles().isEmpty()) { + ruleContext.throwWithRuleError(NO_PROTOS_ERROR); + } + if (outputsCpp()) { ruleContext.ruleWarning( "The output_cpp attribute has been deprecated. Please " @@ -109,6 +130,9 @@ final class ProtoAttributes { "As part of the migration process, it is recommended to enable " + "use_objc_header_names. Please refer to b/29368416 for more information."); } + if (hasObjcProtoLibraryDependencies()) { + ruleContext.throwWithRuleError(OBJC_PROTO_LIB_DEP_IN_PROTOCOL_BUFFERS2_DEPS_ERROR); + } } } @@ -217,4 +241,36 @@ final class ProtoAttributes { ruleContext.getPrerequisiteArtifacts("deps", Mode.TARGET); return prerequisiteArtifacts.filter(FileType.of(".proto")).list(); } + + private boolean hasPB2Dependencies() { + for (TransitiveInfoCollection dep : ruleContext.getPrerequisites("deps", Mode.TARGET)) { + if (isObjcProtoLibrary(dep) && !hasProtobufProvider(dep)) { + return true; + } + } + return false; + } + + private boolean hasObjcProtoLibraryDependencies() { + for (TransitiveInfoCollection dep : ruleContext.getPrerequisites("deps", Mode.TARGET)) { + if (isObjcProtoLibrary(dep)) { + return true; + } + } + return false; + } + + private boolean isObjcProtoLibrary(TransitiveInfoCollection dependency) { + try { + AbstractConfiguredTarget target = (AbstractConfiguredTarget) dependency; + String targetName = target.getTarget().getTargetKind(); + return targetName.equals("objc_proto_library rule"); + } catch (Exception e) { + return false; + } + } + + private boolean hasProtobufProvider(TransitiveInfoCollection dependency) { + return dependency.getProvider(ObjcProtoProvider.class) != null; + } } |