@Nullable
private static Label maybeGetConfiguredTargetCycleCulprit(
Label labelToLoad, Iterable<CycleInfo> cycleInfos) {
for (CycleInfo cycleInfo : cycleInfos) {
SkyKey culprit = Iterables.getFirst(cycleInfo.getCycle(), null);
if (culprit == null) {
continue;
}
if (culprit.functionName().equals(SkyFunctions.CONFIGURED_TARGET)) {
return ((ConfiguredTargetKey) culprit.argument()).getLabel();
} else {
// For other types of cycles (e.g. file symlink cycles), the root cause is the furthest
// target dependency that itself depended on the cycle.
Label furthestTarget = labelToLoad;
for (SkyKey skyKey : cycleInfo.getPathToCycle()) {
if (skyKey.functionName().equals(SkyFunctions.CONFIGURED_TARGET)) {
furthestTarget = (Label) skyKey.argument();
} else {
break;
}
}
return furthestTarget;
}
}
return null;
}
@Nullable
Label maybeGetConfiguredTargetCycleCulprit(Iterable<CycleInfo> cycleInfos) {
for (CycleInfo cycleInfo : cycleInfos) {
SkyKey culprit = Iterables.getFirst(cycleInfo.getCycle(), null);
if (culprit == null) {
continue;
}
if (culprit.functionName().equals(SkyFunctions.CONFIGURED_TARGET)) {
return ((LabelAndConfiguration) culprit.argument()).getLabel();
}
}
return null;
}
@Override
protected boolean canReportCycle(SkyKey topLevelKey, CycleInfo cycleInfo) {
return IS_ARTIFACT_OR_ACTION_SKY_KEY.apply(topLevelKey)
&& Iterables.all(cycleInfo.getCycle(), IS_ARTIFACT_OR_ACTION_SKY_KEY);
}