File logFile = logFile(basePath);
        List<BuildOperationRecord> partialTree = readLogToTreeRoots(logFile, false);
        return new BuildOperationTree(partialTree);
    }

    private static List<BuildOperationRecord> readLogToTreeRoots(final File logFile, boolean completeTree) {
        try {
            final JsonSlurper slurper = new JsonSlurper();