最近有一個需求是要計算整個 project 的程式碼行數，為了解決這個問題我找到一個程式叫做 cloc 可以用很快的方法計算整個 project 的程式含量與這個 project 使用多少語言來撰寫。
安裝 cloc
$ sudo apt install cloc Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: libalgorithm-diff-perl libalgorithm-diff-xs-perl libb-hooks-op-check-perl libclass-method-modifiers-perl libclass-xsaccessor-perl libdevel-callchecker-perl libdynaloader-functions-perl libimport-into-perl libmodule-runtime-perl libmoo-perl libparallel-forkmanager-perl libparams-classify-perl libregexp-common-perl librole-tiny-perl libstrictures-perl libsub-name-perl libsub-quote-perl Suggested packages: libscalar-number-perl libbareword-filehandles-perl libindirect-perl libmultidimensional-perl The following NEW packages will be installed: cloc libalgorithm-diff-perl libalgorithm-diff-xs-perl libb-hooks-op-check-perl libclass-method-modifiers-perl libclass-xsaccessor-perl libdevel-callchecker-perl libdynaloader-functions-perl libimport-into-perl libmodule-runtime-perl libmoo-perl libparallel-forkmanager-perl libparams-classify-perl libregexp-common-perl librole-tiny-perl libstrictures-perl libsub-name-perl libsub-quote-perl 0 upgraded, 18 newly installed, 0 to remove and 4 not upgraded. Need to get 591 kB of archives. After this operation, 2,070 kB of additional disk space will be used. Do you want to continue? [Y/n] y
使用 cloc 計算程式碼行數
計算完之後可以看到這隻程式可以計算出多種語言包誇 JavaScript、C/C++ 與 SQL 多種語言的檔案數量跟程式數量等等的資料
$ cloc .
13352 text files.
11248 unique files.
3398 files ignored.
github.com/AlDanial/cloc v 1.82 T=15.84 s (631.0 files/s, 90710.0 lines/s)
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Language files blank comment code
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JavaScript 7055 104040 155910 727519
Markdown 885 42864 4 110280
JSON 769 128 0 100825
TypeScript 960 4613 65476 48644
HTML 56 389 3 21232
Python 52 4198 7606 18687
C/C++ Header 10 1372 821 7421
CoffeeScript 24 804 582 2557
C++ 6 382 95 1785
YAML 108 110 41 1649
SVG 3 2 3 1264
Bourne Shell 11 201 212 948
XML 8 0 0 883
CSS 6 28 15 688
SQL 2 133 0 455
Windows Module Definition 5 83 0 451
Bourne Again Shell 4 76 78 281
Lisp 3 42 38 264
C# 1 55 7 211
Dockerfile 3 26 67 152
make 14 58 30 140
Smarty 2 7 0 71
DOS Batch 7 19 0 41
Nix 1 1 0 19
EJS 2 0 0 14
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SUM: 9997 159631 230988 1046481
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