Examples with GetNamedRefsParams org.projectnessie.versioned.GetNamedRefsParams used on opensource projects

Example 1 with GetNamedRefsParams

use of org.projectnessie.versioned.GetNamedRefsParams in project nessie by projectnessie.

the class AbstractDatabaseAdapter method namedRefsWithDefaultBranchRelatedInfo.

/**
 * If necessary based on the given {@link GetNamedRefsParams}, updates the returned {@link
 * ReferenceInfo}s with the common-ancestor of the named reference and the default branch and the
 * number of commits behind/ahead compared to the default branch.
 *
 * <p>The common ancestor and/or information of commits behind/ahead is meaningless ({@code null})
 * for the default branch. Both fields are also {@code null} if the named reference points to the
 * {@link #noAncestorHash()} (beginning of time).
 */
protected Stream<ReferenceInfo<ByteString>> namedRefsWithDefaultBranchRelatedInfo(OP_CONTEXT ctx, GetNamedRefsParams params, Stream<ReferenceInfo<ByteString>> refs, Hash defaultBranchHead) {
    if (defaultBranchHead == null) {
        // No enhancement of common ancestor and/or commits behind/ahead.
        return refs;
    }
    CommonAncestorState commonAncestorState = new CommonAncestorState(ctx, defaultBranchHead, params.getBranchRetrieveOptions().isComputeAheadBehind() || params.getTagRetrieveOptions().isComputeAheadBehind());
    return refs.map(ref -> {
        if (ref.getNamedRef().equals(params.getBaseReference())) {
            return ref;
        }
        RetrieveOptions retrieveOptions = namedRefsRetrieveOptionsForReference(params, ref);
        ReferenceInfo<ByteString> updated = namedRefsRequiresBaseReference(retrieveOptions) ? findCommonAncestor(ctx, ref.getHash(), commonAncestorState, (diffOnFrom, hash) -> {
            ReferenceInfo<ByteString> newRef = ref;
            if (retrieveOptions.isComputeCommonAncestor()) {
                newRef = newRef.withCommonAncestor(hash);
            }
            if (retrieveOptions.isComputeAheadBehind()) {
                int behind = commonAncestorState.indexOf(hash);
                CommitsAheadBehind aheadBehind = CommitsAheadBehind.of(diffOnFrom, behind);
                newRef = newRef.withAheadBehind(aheadBehind);
            }
            return newRef;
        }) : null;
        return updated != null ? updated : ref;
    });
}