elastic / elasticsearch-sql-odbc - 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).

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Conditional Complexity Overall

There are 3,930 units with 126,841 lines of code in units (60.5% of code).

61 very complex units (22,283 lines of code)
152 complex units (18,740 lines of code)
493 medium complex units (31,258 lines of code)
642 simple units (20,973 lines of code)
2,582 very simple units (33,587 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
CURLcode Curl_vsetopt() in libs/curl/lib/setopt.c	1987	553	3
ParameterError getparameter() in libs/curl/src/tool_getparam.c	1473	485	6
static CURLcode single_transfer() in libs/curl/src/tool_operate.c	1141	343	5
static CURLcode ssh_statemach_act() in libs/curl/lib/vssh/libssh2.c	1665	338	2
static CURLcode myssh_statemach_act() in libs/curl/lib/vssh/libssh.c	1084	225	2
int ZEXPORT inflate() in libs/zlib/inflate.c	635	204	2
size_t Curl_ftp_parselist() in libs/curl/lib/ftplistparser.c	646	159	4
static CURLMcode multi_runsingle() in libs/curl/lib/multi.c	571	142	3
static int formatf() in libs/curl/lib/mprintf.c	309	106	2
CURLFORMcode FormAdd() in libs/curl/lib/formdata.c	401	104	3
CURLUcode curl_url_get() in libs/curl/lib/urlapi.c	268	103	4
static int parsefmt() in libs/curl/lib/mprintf.c	362	102	6
CURLcode Curl_ossl_ctx_init() in libs/curl/lib/vtls/openssl.c	401	102	11
static CURLcode ftp_statemachine() in libs/curl/lib/ftp.c	320	102	2
static CURLcode post_per_transfer() in libs/curl/src/tool_operate.c	237	101	5
static CURLproxycode do_SOCKS5() in libs/curl/lib/socks.c	421	98	3
CURLcode Curl_http_header() in libs/curl/lib/http.c	268	92	3
CURLUcode curl_url_set() in libs/curl/lib/urlapi.c	259	86	4
static CURLcode sectransp_connect_step2() in libs/curl/lib/vtls/sectransp.c	279	86	2
int ZEXPORT deflate() in libs/zlib/deflate.c	257	85	2
static CURLcode wssh_statemach_act() in libs/curl/lib/vssh/wolfssh.c	392	84	2
CURLcode Curl_http() in libs/curl/lib/c-hyper.c	300	80	2
static CURLcode rtsp_do() in libs/curl/lib/rtsp.c	292	80	2
SQLRETURN config_dbc() in driver/connect.c	349	77	2
SQLRETURN EsSQLGetDiagFieldW() in driver/info.c	195	75	5
int main() in libs/zlib/contrib/minizip/minizip.c	233	74	2
int ZEXPORT inflateBack() in libs/zlib/infback.c	327	72	5
size_t tool_write_cb() in libs/curl/src/tool_cb_wrt.c	193	71	4
bool curlx_verify_windows_version() in libs/curl/lib/version_win32.c	197	70	5
static CURLUcode parseurl() in libs/curl/lib/urlapi.c	260	69	3
static CURLcode ldap_do() in libs/curl/lib/ldap.c	394	68	2
int ZEXPORT inflateBack9() in libs/zlib/contrib/infback9/infback9.c	336	67	5
CURLcode Curl_SOCKS5_gssapi_negotiate() in libs/curl/lib/socks_sspi.c	425	67	2
static CURLcode http_on_response() in libs/curl/lib/http.c	193	66	6
SQLRETURN EsSQLSetDescFieldW() in driver/handles.c	262	65	5
local int unz64local_GetCurrentFileInfoInternal() in libs/zlib/contrib/minizip/unzip.c	182	64	9
int cert_stuff() in libs/curl/lib/vtls/openssl.c	324	64	9
static CURLcode ftp_done() in libs/curl/lib/ftp.c	170	64	3
static CURLcode create_conn() in libs/curl/lib/url.c	245	63	3
SQLRETURN EsSQLSetStmtAttrW() in driver/handles.c	247	62	4
static CborError value_to_pretty() in libs/tinycbor/src/cborpretty.c	181	62	5
static int get_param_part() in libs/curl/src/tool_formparse.c	171	62	8
static int parsedate() in libs/curl/lib/parsedate.c	159	62	2
static void write_linked_location() in libs/curl/src/tool_cb_hdr.c	160	59	4
static int parsenetrc() in libs/curl/lib/netrc.c	188	59	4
static CURLcode telnet_do() in libs/curl/lib/telnet.c	272	59	2
static SQLRETURN parse_interval_iso8601() in driver/convert.c	231	58	4
int parseconfig() in libs/curl/src/tool_parsecfg.c	161	57	2
CURLcode Curl_follow() in libs/curl/lib/transfer.c	179	57	3
CURLcode Curl_altsvc_parse() in libs/curl/lib/altsvc.c	158	57	6