guardian / secure-contact - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

Conditional Complexity Overall

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 28 most complex units

Unit	# lines	McCabe index	# params
def run() in src/monitor.py	27	10	3
def dump_to_dynamodb() in src/dynamo.py	23	9	1
def healthcheck() in src/monitor.py	7	4	1
def update_website_configuration() in src/monitor.py	8	4	3
def monitor() in src/monitor.py	14	4	4
def send_message() in src/notifications.py	11	4	3
def build_pages() in securedrop.py	13	3	3
def get_stage() in src/monitor.py	9	3	1
def send_request() in src/monitor.py	14	3	1
def create_service_resource() in src/monitor.py	4	2	2
def fetch_parameter() in src/monitor.py	7	2	2
def hour_is_0900() in src/monitor.py	5	2	0
def upload_website_index() in src/monitor.py	4	2	4
def default() in src/dynamo.py	4	2	2
def write_to_database() in src/dynamo.py	3	2	4
def send_email() in src/notifications.py	18	2	4
def render_page() in securedrop.py	8	1	4
def create_session() in src/monitor.py	2	1	2
def get_uptime() in src/monitor.py	4	1	0
def get_expiry() in src/monitor.py	2	1	1
def create_item() in src/monitor.py	7	1	2
def send_failure_email() in src/monitor.py	6	1	3
def state_has_changed() in src/monitor.py	2	1	3
def read_from_database() in src/dynamo.py	10	1	2
def generate_text() in src/notifications.py	2	1	2
def generate_html() in src/notifications.py	2	1	2
def create_email() in src/notifications.py	19	1	3
def generate_message() in src/notifications.py	32	1	4