private LicensesProvider initializeLicensesProvider() {
if (!ruleContext.getConfiguration().checkLicenses()) {
return LicensesProviderImpl.EMPTY;
}
NestedSetBuilder<TargetLicense> builder = NestedSetBuilder.linkOrder();
BuildConfiguration configuration = ruleContext.getConfiguration();
Rule rule = ruleContext.getRule();
License toolOutputLicense = rule.getToolOutputLicense(ruleContext.attributes());
if (configuration.isHostConfiguration() && toolOutputLicense != null) {
if (toolOutputLicense != License.NO_LICENSE) {
builder.add(new TargetLicense(rule.getLabel(), toolOutputLicense));
}
} else {
if (rule.getLicense() != License.NO_LICENSE) {
builder.add(new TargetLicense(rule.getLabel(), rule.getLicense()));
}
for (TransitiveInfoCollection dep : ruleContext.getConfiguredTargetMap().values()) {
LicensesProvider provider = dep.getProvider(LicensesProvider.class);
if (provider != null) {
builder.addTransitive(provider.getTransitiveLicenses());
}
}
}
return new LicensesProviderImpl(builder.build());
}
/**
* Scans {@code action_listeners} associated with this build to see if any {@code extra_actions}
* should be added to this configured target. If any action_listeners are present, a partial visit
* of the artifact/action graph is performed (for as long as actions found are owned by this
* {@link ConfiguredTarget}). Any actions that match the {@code action_listener} get an {@code
* extra_action} associated. The output artifacts of the extra_action are reported to the {@link
* AnalysisEnvironment} for bookkeeping.
*/
private ExtraActionArtifactsProvider initializeExtraActions() {
BuildConfiguration configuration = ruleContext.getConfiguration();
if (configuration.isHostConfiguration()) {
return ExtraActionArtifactsProvider.EMPTY;
}
ImmutableList<Artifact> extraActionArtifacts = ImmutableList.of();
NestedSetBuilder<ExtraArtifactSet> builder = NestedSetBuilder.stableOrder();
List<Label> actionListenerLabels = configuration.getActionListeners();
if (!actionListenerLabels.isEmpty()
&& ruleContext.getRule().getAttributeDefinition(":action_listener") != null) {
ExtraActionsVisitor visitor =
new ExtraActionsVisitor(ruleContext, computeMnemonicsToExtraActionMap());
// The action list is modified within the body of the loop by the addExtraAction() call,
// thus the copy
for (Action action :
ImmutableList.copyOf(ruleContext.getAnalysisEnvironment().getRegisteredActions())) {
if (!actionsWithoutExtraAction.contains(action)) {
visitor.addExtraAction(action);
}
}
extraActionArtifacts = visitor.getAndResetExtraArtifacts();
if (!extraActionArtifacts.isEmpty()) {
builder.add(ExtraArtifactSet.of(ruleContext.getLabel(), extraActionArtifacts));
}
}
// Add extra action artifacts from dependencies
for (TransitiveInfoCollection dep : ruleContext.getConfiguredTargetMap().values()) {
ExtraActionArtifactsProvider provider = dep.getProvider(ExtraActionArtifactsProvider.class);
if (provider != null) {
builder.addTransitive(provider.getTransitiveExtraActionArtifacts());
}
}
if (mandatoryStampFiles != null && !mandatoryStampFiles.isEmpty()) {
builder.add(ExtraArtifactSet.of(ruleContext.getLabel(), mandatoryStampFiles));
}
if (extraActionArtifacts.isEmpty() && builder.isEmpty()) {
return ExtraActionArtifactsProvider.EMPTY;
}
return new ExtraActionArtifactsProvider(extraActionArtifacts, builder.build());
}
/**
* Populates the configuration specific mnemonicToExtraActionMap based on all action_listers
* selected by the user (via the blaze option {@code --experimental_action_listener=<target>}).
*/
private Multimap<String, ExtraActionSpec> computeMnemonicsToExtraActionMap() {
// We copy the multimap here every time. This could be expensive.
Multimap<String, ExtraActionSpec> mnemonicToExtraActionMap = HashMultimap.create();
for (TransitiveInfoCollection actionListener :
ruleContext.getPrerequisites(":action_listener", Mode.HOST)) {
ExtraActionMapProvider provider = actionListener.getProvider(ExtraActionMapProvider.class);
if (provider == null) {
ruleContext.ruleError(
String.format(
"Unable to match experimental_action_listeners to this rule. "
+ "Specified target %s is not an action_listener rule",
actionListener.getLabel().toString()));
} else {
mnemonicToExtraActionMap.putAll(provider.getExtraActionMap());
}
}
return mnemonicToExtraActionMap;
}
