gitlab-org / GitLab_Puma - 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 524 units with 6,750 lines of code in units (81.5% of code).

1 very complex units (942 lines of code)
3 complex units (481 lines of code)
18 medium complex units (969 lines of code)
38 simple units (1,215 lines of code)
464 very simple units (3,143 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
size_t puma_parser_execute() in ext/puma_http11/http11_parser.c	942	405	4
handle_request in lib/puma/server.rb	186	47	2
public int execute() in ext/puma_http11/org/jruby/puma/Http11Parser.java	171	39	4
run_internal in lib/puma/reactor.rb	124	29	0
parse in lib/puma/binder.rb	94	22	2
handle_servers in lib/puma/server.rb	65	21	0
run in lib/puma/cluster.rb	94	20	0
worker in lib/puma/cluster.rb	58	18	2
process_client in lib/puma/server.rb	56	18	2
decode_chunk in lib/puma/client.rb	69	17	1
context in lib/puma/minissl/context_builder.rb	46	17	0
handle_servers_lopez_mode in lib/puma/server.rb	49	17	0
send_request in lib/puma/control_cli.rb	45	15	0
self.set_host_port_to_config in lib/rack/handler/puma.rb	18	14	3
initialize in lib/puma/control_cli.rb	79	14	3
check_workers in lib/puma/cluster.rb	30	13	1
initialize in lib/puma/launcher.rb	35	13	2
send_signal in lib/puma/control_cli.rb	40	12	0
call in lib/puma/app/status.rb	37	12	1
spawn_thread in lib/puma/thread_pool.rb	50	11	0
run in lib/puma/server.rb	63	11	1
graceful_shutdown in lib/puma/server.rb	41	11	0
VALUE engine_init_server() in ext/puma_http11/mini_ssl.c	87	10	2
self.config in lib/rack/handler/puma.rb	36	10	2
setup_signals in lib/puma/launcher.rb	50	10	0
call in lib/puma/rack/urlmap.rb	26	10	1
read_nonblock in lib/puma/minissl.rb	18	10	2
public static void http_field() in ext/puma_http11/org/jruby/puma/Http11.java	31	9	7
public IRubyObject read() in ext/puma_http11/org/jruby/puma/MiniSSL.java	42	9	0
setup_body in lib/puma/client.rb	46	9	0
start in lib/puma/control_cli.rb	16	9	0
normalize_env in lib/puma/server.rb	30	9	2
generate_restart_data in lib/puma/launcher.rb	26	9	0
handler_opts in lib/puma/rack/builder.rb	20	9	1
private SSLEngineResult doOp() in ext/puma_http11/org/jruby/puma/MiniSSL.java	35	8	3
try_to_finish in lib/puma/client.rb	28	8	0
jruby_start_try_to_finish in lib/puma/client.rb	27	8	0
run in lib/puma/single.rb	49	8	0
set_remote_address in lib/puma/dsl.rb	21	8	1
parse! in lib/puma/rack/builder.rb	77	8	1
start_control in lib/puma/runner.rb	32	8	0
setup_options in lib/puma/cli.rb	108	8	0
reset in lib/puma/client.rb	30	7	1
read_body in lib/puma/client.rb	33	7	0
read_chunked_body in lib/puma/client.rb	18	7	0
closed_socket? in lib/puma/server.rb	14	7	1
read_body in lib/puma/server.rb	28	7	4
fast_write in lib/puma/server.rb	17	7	2
run in lib/puma/launcher.rb	29	7	0
readpartial in lib/puma/minissl.rb	13	7	1