Awesome
ShellMetrics
ShellMetrics is Cyclomatic Complexity Analyzer for shell script.
Requirements
ShellMetrics is written by shell script.
One of the following shells is required: bash, mksh, yash, zsh
Installation
curl -fsSL https://git.io/shellmetrics > ~/bin/shellmetrics
chmod +x ~/bin/shellmetrics
or
wget https://git.io/shellmetrics -O ~/bin/shellmetrics
chmod +x ~/bin/shellmetrics
Usage
Usage: shellmetrics [options] files...
-s, --shell The path of shell to use as parser [default: bash]
Supported shells: bash, mksh, yash, zsh
--[no-]color Enable / Disable color [default: enabled]
--csv Generate CSV output
-p, --pretty Format pretty with wrapper function(s)
-d, --debug Display parsed data for debug instead of report
-v, --version Display the version
-h, --help You're looking at it
Metric values vary slightly depending on the shell used.
Example
ShellMetrics self metrics.
- NLOC - Non-comment Lines of Code
- LLOC - Logical Lines of Code
- CCN - Cyclomatic Complexity number
$ shellmetrics ./shellmetrics
==============================================================================
LLOC CCN Location
------------------------------------------------------------------------------
1 1 usage:9 shellmetrics
1 1 proxy:35 shellmetrics
1 1 putsn:40 shellmetrics
1 1 putsn:44 shellmetrics
4 2 putsn:39 shellmetrics
9 2 count:51 shellmetrics
2 1 is_comment_line:64 shellmetrics
2 2 is_blank_line:69 shellmetrics
3 1 repeat_string:73 shellmetrics
3 2 array:79 shellmetrics
2 1 array_is_empty:86 shellmetrics
7 2 push_array:91 shellmetrics
11 3 pop_array:102 shellmetrics
11 3 shift_array:119 shellmetrics
8 3 peel:136 shellmetrics
7 3 pretty:149 shellmetrics
2 1 process:162 shellmetrics
65 27 parse:167 shellmetrics
21 8 analyze:238 shellmetrics
56 6 default_report:274 shellmetrics
10 4 csv_report:372 shellmetrics
3 1 title:389 shellmetrics
9 5 init_mode:395 shellmetrics
9 2 main:412 shellmetrics
4 2 error:426 shellmetrics
2 1 abort:435 shellmetrics
1 1 unknown:440 shellmetrics
1 1 required:441 shellmetrics
1 1 param:442 shellmetrics
1 1 params:443 shellmetrics
2 1 params_:444 shellmetrics
20 12 parse_options:446 shellmetrics
52 2 <main> shellmetrics
------------------------------------------------------------------------------
1 file(s), 33 function(s) analyzed. [bash 4.4.20(1)-release]
==============================================================================
NLOC NLOC LLOC LLOC CCN Func File (lines:comment:blank)
total avg total avg avg cnt
------------------------------------------------------------------------------
412 12.48 332 10.06 3.18 33 shellmetrics (479:5:62)
------------------------------------------------------------------------------
==============================================================================
NLOC NLOC LLOC LLOC CCN Func File lines comment blank
total avg total avg avg cnt cnt total total total
------------------------------------------------------------------------------
412 12.48 332 10.06 3.18 33 1 479 5 62
------------------------------------------------------------------------------
Contribution
How to test
ShellMetrics tested by ShellSpec.
To test, install ShellSpec and run spellspec on the project root directory.