GoogleCloudPlatform / gcsfuse - 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 1,448 units with 18,992 lines of code in units (78.6% of code).

1 very complex units (264 lines of code)
2 complex units (343 lines of code)
41 medium complex units (2,362 lines of code)
128 simple units (3,914 lines of code)
1,276 very simple units (12,109 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
func BindFlags() in cfg/config.go	264	88	2
func BuildFlagSet() in cfg/config.go	208	39	1
func Mount() in cmd/legacy_main.go	135	31	3
func categorize() in internal/fs/wrappers/monitoring.go	158	19	1
func() in internal/gcsx/random_reader.go	57	19	1
func() in internal/fs/inode/dir.go	88	17	1
func errno() in internal/fs/wrappers/error_mapping.go	50	17	2
func() in internal/fs/inode/dir.go	69	16	1
func AreFilesIdentical() in tools/integration_tests/util/operations/file_operations.go	55	15	2
func buildBinaries() in tools/build_gcsfuse/main.go	108	15	4
func() in internal/fs/fs.go	69	15	1
func() in internal/gcsx/syncer.go	56	15	1
func preconditionChecks() in internal/storage/fake/bucket.go	70	15	3
func() in internal/storage/fake/bucket.go	62	15	1
func ValidateConfig() in cfg/validate.go	43	14	2
func computeFlagTemplateDataForParam() in tools/config-gen/flag_template_data_gen.go	58	14	1
func() in internal/gcsx/file_cache_reader.go	67	14	1
func() in internal/storage/fake/bucket.go	61	14	1
func setFlagValue() in cfg/optimize.go	47	13	4
func run() in benchmarks/read_full_file/main.go	86	13	0
def generate_load() in perfmetrics/scripts/load_tests/python/load_generator/load_generator.py	54	13	2
func() in internal/fs/inode/file.go	47	13	1
func() in internal/fs/fs.go	48	13	1
func() in internal/gcsx/random_reader.go	62	13	1
func() in internal/storage/fake/fake_multi_range_downloader.go	47	13	1
func isValidMetadataCache() in cfg/validate.go	33	12	2
func() in tools/integration_tests/emulator_tests/proxy_server/main.go	51	12	1
func parseArgs() in tools/mount_gcsfuse/main.go	41	12	1
def _compare_directory_structure() in perfmetrics/scripts/ls_metrics/listing_benchmark.py	24	12	2
def _extract_metrics() in perfmetrics/scripts/fio/fio_metrics.py	34	12	2
def _run_rename_benchmark() in perfmetrics/scripts/hns_rename_folders_metrics/renaming_benchmark.py	41	12	4
func() in internal/fs/fs.go	39	12	1
func() in internal/fs/fs.go	67	12	1
func() in internal/gcsx/bucket_manager.go	69	12	1
func newRootCmd() in cmd/root.go	70	12	1
func run() in tools/mount_gcsfuse/main.go	51	11	1
def generate_files_and_upload_to_gcs_bucket() in perfmetrics/scripts/generate_files.py	39	11	7
def _check_for_config_file_inconsistency() in perfmetrics/scripts/hns_rename_folders_metrics/generate_folders_and_files.py	24	11	1
def _generate_files_and_upload_to_gcs_bucket() in perfmetrics/scripts/hns_rename_folders_metrics/generate_folders_and_files.py	34	11	5
func() in internal/fs/inode/file.go	56	11	1
func() in internal/fs/fs.go	40	11	1
func() in internal/gcsx/multi_range_downloader_wrapper.go	58	11	1
func() in internal/storage/bucket_handle.go	40	11	1
func mountWithStorageHandle() in cmd/mount.go	89	11	6
func resolveMetadataCacheTTL() in cfg/rationalize.go	18	10	3
func build() in tools/package_gcsfuse/build.go	91	10	3
def _parse_and_generate_directory_structure() in perfmetrics/scripts/hns_rename_folders_metrics/generate_folders_and_files.py	32	10	1
func() in internal/fs/inode/file.go	41	10	1
func NewFileSystem() in internal/fs/fs.go	76	10	2
func() in internal/fs/fs.go	29	10	1