mozilla / addons-server - 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).

Learn more...

Conditional Complexity Overall

There are 3,996 units with 41,735 lines of code in units (41.1% of code).

2 very complex units (679 lines of code)
10 complex units (1,096 lines of code)
103 medium complex units (4,851 lines of code)
312 simple units (7,960 lines of code)
3,569 very simple units (27,149 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

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 50 most complex units

Unit	# lines	McCabe index	# params
def review() in src/olympia/reviewers/views.py	280	56	3
(function ()() in static/js/stats/chart.js	399	54	1
def to_string() in src/olympia/activity/models.py	134	49	2
def appeal() in src/olympia/abuse/views.py	98	38	5
def upload_filter() in src/olympia/blocklist/tasks.py	69	31	2
def addons_section() in src/olympia/devhub/views.py	113	31	5
def clean_changed_version_ids() in src/olympia/blocklist/forms.py	27	30	1
def handle_upload() in src/olympia/signing/views.py	101	30	5
def version_edit() in src/olympia/devhub/views.py	99	30	4
function _truncate() in static/js/lib/truncate.js	59	27	2
$.fn.addonUploader = function() in static/js/common/upload-addon.js	327	26	1
def upload_image() in src/olympia/devhub/views.py	69	26	4
def clean() in src/olympia/reviewers/forms.py	70	24	1
def __call__() in src/olympia/addons/validators.py	49	24	3
def save() in src/olympia/amo/models.py	32	23	3
def block_activity_log_delete() in src/olympia/blocklist/utils.py	58	22	5
def with_user() in src/olympia/accounts/views.py	95	21	1
def __call__() in src/olympia/addons/validators.py	59	21	3
def extract_document() in src/olympia/addons/indexers.py	87	20	2
def arguments_builder() in src/olympia/activity/models.py	38	20	2
def clean() in src/olympia/shelves/forms.py	91	19	1
def get_actions() in src/olympia/reviewers/utils.py	435	19	1
def get_search_results() in src/olympia/amo/admin.py	68	18	4
def dashboard() in src/olympia/reviewers/views.py	110	18	1
def clean_slug() in src/olympia/addons/models.py	34	18	2
def get_docker_image_meta() in scripts/setup.py	57	17	1
def _upload_mlbf_to_remote_settings() in src/olympia/blocklist/cron.py	55	17	2
def can_be_appealed() in src/olympia/abuse/models.py	25	17	4
def attach_trans_dict() in src/olympia/amo/utils.py	41	17	2
def validate() in src/olympia/abuse/serializers.py	48	16	2
def set_max_length_on_fields_where_necessary() in src/olympia/amo/utils.py	29	16	1
def update() in src/olympia/addons/serializers.py	42	16	3
def handle() in src/olympia/search/management/commands/reindex.py	37	16	3
MsgVisitor.prototype.message = function() in static/js/zamboni/validator.js	77	15	2
$() in static/js/zamboni/reviewers.js	51	15	1
def _submit_source() in src/olympia/devhub/views.py	70	15	5
def get_queryset() in src/olympia/accounts/views.py	30	15	2
def get_queryset_with_related_ips() in src/olympia/amo/admin.py	44	15	4
def filter_queryset() in src/olympia/ratings/views.py	58	15	2
def post_save() in src/olympia/ratings/models.py	24	15	4
def filter_queryset() in src/olympia/search/filters.py	52	15	4
def watch_changes() in src/olympia/users/models.py	20	15	5
function() in static/js/common/upload-addon.js	48	14	4
def get_extended_attributes() in src/olympia/abuse/cinder.py	45	14	1
def email_verification() in src/olympia/devhub/views.py	53	14	1
def clean() in src/olympia/devhub/forms.py	47	14	1
def decorator() in src/olympia/devhub/decorators.py	41	14	1
def send_notifications() in src/olympia/reviewers/models.py	33	14	4
def process() in src/olympia/reviewers/management/commands/auto_approve.py	70	14	2
def get_es_query() in src/olympia/search/filters.py	26	14	1