https://kazuhira-r.hatenablog.com/entry/2025/10/04/163206

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 24.04.3 LTS
Release:        24.04
Codename:       noble


$ uname -srvmpio
Linux 6.8.0-85-generic #85-Ubuntu SMP PREEMPT_DYNAMIC Thu Sep 18 15:26:59 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

お題

なにかリポジトリーで計測してみましょう。今回はRESTEasyとFastAPIにしてみます。

cloneして準備しておきます。

# RESTEasy
$ git clone https://github.com/resteasy/resteasy.git
$ cd resteasy
$ git checkout 6.2.11.Final


# FastAPI
$ git clone https://github.com/fastapi/fastapi.git
$ cd fastapi
$ git checkout 0.118.0

比較のために、単純な行数もそれぞれ見ておきましょう。

# RESTEasy
$ wc -l resteasy-core/src/main/java/org/jboss/resteasy/core/SynchronousDispatcher.java
554 resteasy-core/src/main/java/org/jboss/resteasy/core/SynchronousDispatcher.java


# FastAPI
$ wc -l fastapi/applications.py
4667 fastapi/applications.py

cloc

それでは、順番に見ていきましょう。

まずはclocから。

clocはaptで入れると少し古いものになるので、バイナリーをダウンロードしてきて使いましょう。

$ curl -LO https://github.com/AlDanial/cloc/releases/download/v2.06/cloc-2.06.tar.gz
$ tar xf cloc-2.06.tar.gz
$ cp cloc-2.06/cloc ~/.local/bin

バージョン。

$ cloc --version
2.06

ヘルプ。

$ cloc --help

Usage: cloc [options] <file(s)/dir(s)/git hash(es)> | <set 1> <set 2> | <report files>

Count, or compute differences of, physical lines of source code in the
given files (may be archives such as compressed tarballs or zip files,
or git commit hashes or branch names) and/or recursively below the
given directories.

Input Options
--extract-with=<cmd> This option is only needed if cloc is unable
to figure out how to extract the contents of
the input file(s) by itself.
Use <cmd> to extract binary archive files (e.g.:
.tar.gz, .zip, .Z). Use the literal '>FILE<' as
a stand-in for the actual file(s) to be
extracted. For example, to count lines of code
in the input files
gcc-4.2.tar.gz perl-5.8.8.tar.gz
on Unix use
--extract-with='gzip -dc >FILE< | tar xf -'
or, if you have GNU tar,
--extract-with='tar zxf >FILE<'
and on Windows use, for example:
--extract-with="\"c:\Program Files\WinZip\WinZip32.exe\" -e -o >FILE< ."
(if WinZip is installed there).
--list-file=<file> Take the list of file and/or directory names to
process from <file>, which has one file/directory
name per line. Only exact matches are counted;
relative path names will be resolved starting from
the directory where cloc is invoked. Set <file>
to - to read file names from a STDIN pipe.
See also --exclude-list-file, --config.
--diff-list-file=<file> Take the pairs of file names to be diff'ed from
<file>, whose format matches the output of
--diff-alignment. (Run with that option to
see a sample.) The language identifier at the
end of each line is ignored. This enables --diff
mode and bypasses file pair alignment logic.
Use --diff-list-files to define the file name
pairs in separate files. See also --config.
--diff-list-files <file1> <file2>
Compute differences in code and comments between
the files and directories listed in <file1> and
<file2>. Each input file should use the same
format as --list-file, where there is one file or
directory name per line. Only exact matches are
counted; relative path names will be resolved
starting from the directory where cloc is invoked.
This enables --diff mode. See also --list-file,
--diff-list-file, --diff.
--files-from=<CMD> Synonym for --vcs=<CMD>.
--vcs=<CMD> Invoke a system call to <CMD> to obtain a list of
files to work on. If <CMD> is 'git', then will
invoke 'git ls-files' to get a file list and
'git submodule status' to get a list of submodules
whose contents will be ignored. See also --git
which accepts git commit hashes and branch names.
If <VCS> is 'svn' then will invoke 'svn list -R'.
The primary benefit is that cloc will then skip
files explicitly excluded by the versioning tool
in question, ie, those in .gitignore or have the
svn:ignore property.
Alternatively <CMD> may be any system command
that generates a list of files.
Note: cloc must be in a directory which can read
the files as they are returned by <CMD>. cloc will
not download files from remote repositories.
'svn list -R' may refer to a remote repository
to obtain file names (and therefore may require
authentication to the remote repository), but
the files themselves must be local.
Setting <CMD> to 'auto' selects between 'git'
and 'svn' (or neither) depending on the presence
of a .git or .svn subdirectory below the directory
where cloc is invoked.
--files-from is a synonym for --vcs.
--unicode Check binary files to see if they contain Unicode
expanded ASCII text. This causes performance to
drop noticeably.

Processing Options
--autoconf Count .in files (as processed by GNU autoconf) of
recognized languages. See also --no-autogen.
--by-file Report results for every source file encountered.
See also --fmt under 'Output Options'.
--by-file-by-lang Report results for every source file encountered
in addition to reporting by language.
--config <file> Read command line switches from <file> instead of
the default location of /home/vagrant/.config/cloc/options.txt.
The file should contain one switch, along with
arguments (if any), per line. Blank lines and lines
beginning with '#' are skipped. Options given on
the command line take priority over entries read from
the file.
If a directory is also given with any of these
switches: --list-file, --exclude-list-file,
--read-lang-def, --force-lang-def, --diff-list-file
and a config file exists in that directory, it will
take priority over /home/vagrant/.config/cloc/options.txt.
--count-and-diff <set1> <set2>
First perform direct code counts of source file(s)
of <set1> and <set2> separately, then perform a diff
of these. Inputs may be pairs of files, directories,
or archives. If --out or --report-file is given,
three output files will be created, one for each
of the two counts and one for the diff. See also
--diff, --diff-alignment, --diff-timeout,
--ignore-case, --ignore-whitespace.
--diff <set1> <set2> Compute differences in code and comments between
source file(s) of <set1> and <set2>. The inputs
may be any mix of files, directories, archives,
or git commit hashes. Use --diff-alignment to
generate a list showing which file pairs where
compared. When comparing git branches, only files
which have changed in either commit are compared.
See also --git, --count-and-diff, --diff-alignment,
--diff-list-file, --diff-timeout, --ignore-case,
--ignore-whitespace.
--diff-timeout <N> Ignore files which take more than <N> seconds
to process. Default is 10 seconds. Setting <N>
to 0 allows unlimited time. (Large files with many
repeated lines can cause Algorithm::Diff::sdiff()
to take hours.) See also --timeout.
--docstring-as-code cloc considers docstrings to be comments, but this is
not always correct as docstrings represent regular
strings when they appear on the right hand side of an
assignment or as function arguments. This switch
forces docstrings to be counted as code.
--follow-links [Unix only] Follow symbolic links to directories
(sym links to files are always followed).
See also --stat.
--force-lang=<lang>[,<ext>]
Process all files that have a <ext> extension
with the counter for language <lang>. For
example, to count all .f files with the
Fortran 90 counter (which expects files to
end with .f90) instead of the default Fortran 77
counter, use
--force-lang="Fortran 90,f"
If <ext> is omitted, every file will be counted
with the <lang> counter. This option can be
specified multiple times (but that is only
useful when <ext> is given each time).
See also --script-lang, --lang-no-ext.
--force-lang-def=<file> Load language processing filters from <file>,
then use these filters instead of the built-in
filters. Note: languages which map to the same
file extension (for example:
MATLAB/Mathematica/Objective-C/MUMPS/Mercury;
Pascal/PHP; Lisp/OpenCL; Lisp/Julia; Perl/Prolog)
will be ignored as these require additional
processing that is not expressed in language
definition files. Use --read-lang-def to define
new language filters without replacing built-in
filters (see also --write-lang-def,
--write-lang-def-incl-dup, --config).
--git Forces the inputs to be interpreted as git targets
(commit hashes, branch names, et cetera) if these
are not first identified as file or directory
names. This option overrides the --vcs=git logic
if this is given; in other words, --git gets its
list of files to work on directly from git using
the hash or branch name rather than from
'git ls-files'. This option can be used with
--diff to perform line count diffs between git
commits, or between a git commit and a file,
directory, or archive. Use -v/--verbose to see
the git system commands cloc issues.
--git-diff-rel Same as --git --diff, or just --diff if the inputs
are recognized as git targets. Only files which
have changed in either commit are compared.
--git-diff-all Git diff strategy #2: compare all files in the
repository between the two commits.
--ignore-whitespace Ignore horizontal white space when comparing files
with --diff. See also --ignore-case.
--ignore-case Ignore changes in case within file contents;
consider upper- and lowercase letters equivalent
when comparing files with --diff. See also
--ignore-whitespace.
--ignore-case-ext Ignore case of file name extensions. This will
cause problems counting some languages
(specifically, .c and .C are associated with C and
C++; this switch would count .C files as C rather
than C++ on *nix operating systems). File name
case insensitivity is always true on Windows.
--ignore-regex Ignore lines in source files that match the given
Perl regular expression for the given language(s).
This option can be specified multiple times.
Language names are comma separated and are followed
by the pipe character and the regular expression.
Use * to match all languages.
Examples:
--ignore-regex="C,Java,C++|^\s*[{};]\s*$"
--ignore-regex="*|DEBUG|TEST\s+ONLY"
These filters are applied after comments are
removed. Use --strip-comments=EXT to create
new files that show these filters applied.
The primary use case is to ignore lines
containing only braces, brackets, or puctuation.
--lang-no-ext=<lang> Count files without extensions using the <lang>
counter. This option overrides internal logic
for files without extensions (where such files
are checked against known scripting languages
by examining the first line for #!). See also
--force-lang, --script-lang.
--max-file-size=<MB> Skip files larger than <MB> megabytes when
traversing directories. By default, <MB>=100.
cloc's memory requirement is roughly twenty times
larger than the largest file so running with
files larger than 100 MB on a computer with less
than 2 GB of memory will cause problems.
Note: this check does not apply to files
explicitly passed as command line arguments.
--no-autogen[=list] Ignore files generated by code-production systems
such as GNU autoconf. To see a list of these files
(then exit), run with --no-autogen list
See also --autoconf.
--no-recurse Count files in the given directories without
recursively descending below them.
--original-dir [Only effective in combination with
--strip-comments or --strip-code] Write the stripped
files to the same directory as the original files.
--only-count-files Only count files by language. Blank, comment, and
code counts will be zero.
--read-binary-files Process binary files in addition to text files.
This is usually a bad idea and should only be
attempted with text files that have embedded
binary data.
--read-lang-def=<file> Load new language processing filters from <file>
and merge them with those already known to cloc.
If <file> defines a language cloc already knows
about, cloc's definition will take precedence.
Use --force-lang-def to over-ride cloc's
definitions (see also --write-lang-def,
--write-lang-def-incl-dup, --config).
--script-lang=<lang>,<s> Process all files that invoke <s> as a #!
scripting language with the counter for language
<lang>. For example, files that begin with
#!/usr/local/bin/perl5.8.8
will be counted with the Perl counter by using
--script-lang=Perl,perl5.8.8
The language name is case insensitive but the
name of the script language executable, <s>,
must have the right case. This option can be
specified multiple times. See also --force-lang,
--lang-no-ext.
--sdir=<dir> Use <dir> as the scratch directory instead of
letting File::Temp chose the location. Files
written to this location are not removed at
the end of the run (as they are with File::Temp).
--skip-leading=<N[,ext]> Skip the first <N> lines of each file. If a
comma separated list of extensions is also given,
only skip lines from those file types. Example:
--skip-leading=10,cpp,h
will skip the first ten lines of *.cpp and *.h
files. This is useful for ignoring boilerplate
text.
--skip-uniqueness Skip the file uniqueness check. This will give
a performance boost at the expense of counting
files with identical contents multiple times
(if such duplicates exist).
--stat Some file systems (AFS, CD-ROM, FAT, HPFS, SMB)
do not have directory 'nlink' counts that match
the number of its subdirectories. Consequently
cloc may undercount or completely skip the
contents of such file systems. This switch forces
File::Find to stat directories to obtain the
correct count. File search speed will decrease.
See also --follow-links.
--stdin-name=<file> Give a file name to use to determine the language
for standard input. (Use - as the input name to
receive source code via STDIN.)
--strip-code=<ext> For each file processed, write to the current
directory a version of the file which has blank
and code lines, including code with (in-line
comments) removed. The name of each stripped file
is the original file name with .<ext> appended to
it. It is written to the current directory unless
--original-dir is on.
--strip-comments=<ext> For each file processed, write to the current
directory a version of the file which has blank
and commented lines removed (in-line comments
persist). The name of each stripped file is the
original file name with .<ext> appended to it.
It is written to the current directory unless
--original-dir is on.
--strip-str-comments Replace comment markers embedded in strings with
'xx'. This attempts to work around a limitation
in Regexp::Common::Comment where comment markers
embedded in strings are seen as actual comment
markers and not strings, often resulting in a
'Complex regular subexpression recursion limit'
warning and incorrect counts. There are two
disadvantages to using this switch: 1/code count
performance drops, and 2/code generated with
--strip-comments will contain different strings
where ever embedded comments are found.
--sum-reports Input arguments are report files previously
created with the --report-file option in plain
format (eg. not JSON, YAML, XML, or SQL).
Makes a cumulative set of results containing the
sum of data from the individual report files.
--timeout <N> Ignore files which take more than <N> seconds
to process at any of the language's filter stages.
The default maximum number of seconds spent on a
filter stage is the number of lines in the file
divided by one thousand. Setting <N> to 0 allows
unlimited time. See also --diff-timeout.
--processes=NUM [Available only on systems with a recent version
of the Parallel::ForkManager module. Not
available on Windows.] Sets the maximum number of
cores that cloc uses. The default value of 0
disables multiprocessing.
--unix Override the operating system autodetection
logic and run in UNIX mode. See also
--windows, --show-os.
--use-sloccount If SLOCCount is installed, use its compiled
executables c_count, java_count, pascal_count,
php_count, and xml_count instead of cloc's
counters. SLOCCount's compiled counters are
substantially faster than cloc's and may give
a performance improvement when counting projects
with large files. However, these cloc-specific
features will not be available: --diff,
--count-and-diff, --strip-code, --strip-comments,
--unicode.
--windows Override the operating system autodetection
logic and run in Microsoft Windows mode.
See also --unix, --show-os.

Filter Options
--include-content=<regex> Only count files containing text that matches the
given regular expression.
--exclude-content=<regex> Exclude files containing text that matches the given
regular expression.
--exclude-dir=<D1>[,D2,] Exclude the given comma separated directories
D1, D2, D3, et cetera, from being scanned. For
example --exclude-dir=.cache,test will skip
all files and subdirectories that have /.cache/
or /test/ as their parent directory.
Directories named .bzr, .cvs, .hg, .git, .svn,
and .snapshot are always excluded.
This option only works with individual directory
names so including file path separators is not
allowed. Use --fullpath and --not-match-d=<regex>
to supply a regex matching multiple subdirectories.
--exclude-ext=<ext1>[,<ext2>[...]]
Do not count files having the given file name
extensions.
--exclude-lang=<L1>[,L2[...]]
Exclude the given comma separated languages
L1, L2, L3, et cetera, from being counted.
--exclude-list-file=<file> Ignore files and/or directories whose names
appear in <file>. <file> should have one file
name per line. Only exact matches are ignored;
relative path names will be resolved starting from
the directory where cloc is invoked.
See also --list-file, --config.
--fullpath Modifies the behavior of --match-f, --not-match-f,
and --not-match-d to include the file's path--
relative to the directory from which cloc is
invoked--in the regex, not just the file's basename.
(This does not expand each filename to include its
fully qualified absolute path; instead, it uses as
much of the path as is passed in to cloc.)
--include-ext=<ext1>[,ext2[...]]
Count only languages having the given comma
separated file extensions. Use --show-ext to
see the recognized extensions.
--include-lang=<L1>[,L2[...]]
Count only the given comma separated, case-
insensitive languages L1, L2, L3, et cetera. Use
--show-lang to see the list of recognized languages.
--match-d=<regex> Only count files in directories matching the Perl
regex. For example
--match-d='/(src|include)/'
only counts files in directories containing
/src/ or /include/. Unlike --not-match-d,
--match-f, and --not-match-f, --match-d always
anchors the regex to the directory from which
cloc is invoked.
--not-match-d=<regex> Count all files except those in directories
matching the Perl regex. Only the trailing
directory name is compared, for example, when
counting in /usr/local/lib, only 'lib' is
compared to the regex.
Add --fullpath to compare parent directories, beginning
from the directory where cloc is invoked, to the regex.
Do not include file path separators at the beginning
or end of the regex. This option may be repeated.
--match-f=<regex> Only count files whose basenames match the Perl
regex. For example
--match-f='^[Ww]idget'
only counts files that start with Widget or widget.
Add --fullpath to include parent directories
in the regex instead of just the basename.
--not-match-f=<regex> Count all files except those whose basenames
match the Perl regex. Add --fullpath to include
parent directories in the regex instead of just
the basename. This option may be repeated.
--skip-archive=<regex> Ignore files that end with the given Perl regular
expression. For example, if given
--skip-archive='(zip|tar(.(gz|Z|bz2|xz|7z))?)'
the code will skip files that end with .zip,
.tar, .tar.gz, .tar.Z, .tar.bz2, .tar.xz, and
.tar.7z.
--skip-win-hidden On Windows, ignore hidden files.

Debug Options
--categorized=<file> Save file sizes in bytes, identified languages
and names of categorized files to <file>.
--counted=<file> Save names of processed source files to <file>.
See also --found, --ignored, --unique.
--diff-alignment=<file> Write to <file> a list of files and file pairs
showing which files were added, removed, and/or
compared during a run with --diff. This switch
forces the --diff mode on.
--explain=<lang> Print the filters used to remove comments for
language <lang> and exit. In some cases the
filters refer to Perl subroutines rather than
regular expressions. An examination of the
source code may be needed for further explanation.
--help Print this usage information and exit.
--found=<file> Save names of every file found to <file>. See
also --counted, --ignored, --unique.
--ignored=<file> Save names of ignored files and the reason they
were ignored to <file>. See also --counted,
--found, --unique.
--print-filter-stages Print processed source code before and after
each filter is applied.
--show-ext[=<ext>] Print information about all known (or just the
given) file extensions and exit.
--show-lang[=<lang>] Print information about all known (or just the
given) languages and exit.
--show-os Print the value of the operating system mode
and exit. See also --unix, --windows.
--unique=<file> Save names of unique files found to <file>. See
also --counted, --found, --ignored.
-v[=<n>] Verbose switch (optional numeric value).
-verbose[=<n>] Long form of -v.
--version Print the version of this program and exit.
--write-lang-def=<file> Writes to <file> the language processing filters
then exits. Useful as a first step to creating
custom language definitions. Note: languages which
map to the same file extension will be excluded.
(See also --force-lang-def, --read-lang-def).
--write-lang-def-incl-dup=<file>
Same as --write-lang-def, but includes duplicated
extensions. This generates a problematic language
definition file because cloc will refuse to use
it until duplicates are removed.

Output Options
--3 Print third-generation language output.
(This option can cause report summation to fail
if some reports were produced with this option
while others were produced without it.)
--by-percent X Instead of comment and blank line counts, show
these values as percentages based on the value
of X in the denominator, where X is
c meaning lines of code
cm meaning lines of code + comments
cb meaning lines of code + blanks
cmb meaning lines of code + comments + blanks
t meaning sum of values in that column
For example, if using method 'c' and your code
has twice as many lines of comments as lines
of code, the value in the comment column will
be 200%. Method 't' computes percentages
based on totals for each column. Another way of
looking at this is that 't' computes percentages
vertically while the other methods compute them
horizontally.
--csv Write the results as comma separated values.
--csv-delimiter=<C> Use the character <C> as the delimiter for comma
separated files instead of ,. This switch forces
--file-encoding=<E> Write output files using the <E> encoding instead of
the default ASCII (<E> = 'UTF-7'). Examples: 'UTF-16',
'euc-kr', 'iso-8859-16'. Known encodings can be
printed with
perl -MEncode -e 'print join("\n", Encode->encodings(":all")), "\n"'
--fmt=<N> Alternate text output format where <N> is a number
from 1 to 5. 'total lines' means the sum of code,
comment, and blank lines. The formats are:
1: by language (same as cloc default output)
2: by language with an extra column for total lines
3: by file with language
4: by file with a total lines column
5: by file with language and a total lines column
--hide-rate Do not show elapsed time, line processing rate, or
file processing rates in the output header. This
makes output deterministic.
--json Write the results as JavaScript Object Notation
(JSON) formatted output.
--md Write the results as Markdown-formatted text.
--out=<file> Synonym for --report-file=<file>.
--percent Show counts as percentages of sums for each column.
Same as '--by-percent t'.
--progress-rate=<n> Show progress update after every <n> files are
processed (default <n>=100). Set <n> to 0 to
suppress progress output (useful when redirecting
output to STDOUT).
--quiet Suppress all information messages except for
the final report.
--report-file=<file> Write the results to <file> instead of STDOUT.
--summary-cutoff=X:N Aggregate to 'Other' results having X lines
below N where X is one of
c meaning lines of code
f meaning files
m meaning lines of comments
cm meaning lines of code + comments
Appending a percent sign to N changes
the calculation from straight count to
percentage.
Ignored with --diff or --by-file.
--sql=<file> Write results as SQL create and insert statements
which can be read by a database program such as
SQLite. If <file> is -, output is sent to STDOUT.
--sql-append Append SQL insert statements to the file specified
by --sql and do not generate table creation
statements. Only valid with the --sql option.
--sql-project=<name> Use <name> as the project identifier for the
current run. Only valid with the --sql option.
--sql-style=<style> Write SQL statements in the given style instead
of the default SQLite format. Styles include
'Oracle' and 'Named_Columns'.
--sum-one For plain text reports, show the SUM: output line
even if only one input file is processed.
--thousands-delimiter=<C> Divides numbers with many digits (i.e. numbers
over 999) into groups using the character <C> as
delimiter (e.g. for <C> = '.': 12345 -> 12.345).
Only works with the '--fmt' option.
Sample values: '.', ',', '_', ' '
Synonym: --ksep
--xml Write the results in XML.
--xsl=<file> Reference <file> as an XSL stylesheet within
the XML output. If <file> is 1 (numeric one),
writes a default stylesheet, cloc.xsl (or
cloc-diff.xsl if --diff is also given).
This switch forces --xml on.
--yaml Write the results in YAML.

オプションが多いですね…。

RESTEasyで計測。

$ cloc *
    4416 text files.
    4299 unique files.
     155 files ignored.

github.com/AlDanial/cloc v 2.06  T=3.39 s (1267.6 files/s, 105057.8 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Java                          3942          44140          40922         236368
AsciiDoc                        61           3054             59          11301
Maven                           63            506            483           9336
XML                            160            684            774           3795
Properties                      41             27           2534            969
HTML                             2             34              0            182
JavaScript                       1             54            321            166
Text                            10             18              0            132
Python                           7             58             53            101
Markdown                         3             33              0             51
XSD                              2              3              0             51
JSON                             1              0              0             37
Bourne Shell                     1              8              0             16
Org Mode                         1              0              0             16
SQL                              2              0              0              3
DTD                              2              0              0              2
-------------------------------------------------------------------------------
SUM:                          4299          48619          45146         262526
-------------------------------------------------------------------------------

1ファイルを測ってみましょう。

$ cloc resteasy-core/src/main/java/org/jboss/resteasy/core/SynchronousDispatcher.java
       1 text file.
       1 unique file.
       0 files ignored.

github.com/AlDanial/cloc v 2.06  T=0.02 s (45.8 files/s, 25374.5 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Java                             1             50             75            429
-------------------------------------------------------------------------------

FastAPI。

$ cloc *
    2222 text files.
    2176 unique files.
     221 files ignored.

github.com/AlDanial/cloc v 2.06  T=1.00 s (2172.4 files/s, 287267.6 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Markdown                      1060          74072             64         104639
Python                        1028          12760           7829          68717
SVG                             51              1              0          12717
YAML                            16              0              5           5694
JavaScript                       3             38             71            369
CSS                              3             46             29            229
TOML                             1             24             42            203
HTML                             3              1              0            104
Text                             7              0              0             56
Bourne Shell                     4              7              0             22
-------------------------------------------------------------------------------
SUM:                          2176          86949           8040         192750
-------------------------------------------------------------------------------

1ファイルを対象に計測。

$ cloc fastapi/applications.py
       1 text file.
       1 unique file.
       0 files ignored.

github.com/AlDanial/cloc v 2.06  T=0.03 s (33.8 files/s, 157685.9 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Python                           1            648           2187           1832
-------------------------------------------------------------------------------

scc

scc。

sccはsnapでも入れられますが、やっぱり少し古いのでバイナリーをダウンロードしてきてインストールします。

$ curl -LO https://github.com/boyter/scc/releases/download/v3.5.0/scc_Linux_x86_64.tar.gz
$ tar xf scc_Linux_x86_64.tar.gz
$ cp scc ~/.local/bin

バージョン。

$ scc --version
scc version 3.5.0

ヘルプ。

$ scc --help
Sloc, Cloc and Code. Count lines of code in a directory with complexity estimation.
Version 3.5.0
Ben Boyter <ben@boyter.org> + Contributors

Usage:
  scc [flags] [files or directories]

Flags:
      --avg-wage int                       average wage value used for basic COCOMO calculation (default 56286)
      --binary                             disable binary file detection
      --by-file                            display output for every file
  -m, --character                          calculate max and mean characters per line
      --ci                                 enable CI output settings where stdout is ASCII
      --cocomo-project-type string         change COCOMO model type [organic, semi-detached, embedded, "custom,1,1,1,1"] (default "organic")
      --count-as string                    count extension as language [e.g. jsp:htm,chead:"C Header" maps extension jsp to html and chead to C Header]
      --count-ignore                       set to allow .gitignore and .ignore files to be counted
      --currency-symbol string             set currency symbol (default "$")
      --debug                              enable debug output
      --directory-walker-job-workers int   controls the maximum number of workers which will walk the directory tree (default 8)
  -a, --dryness                            calculate the DRYness of the project (implies --uloc)
      --eaf float                          the effort adjustment factor derived from the cost drivers (1.0 if rated nominal) (default 1)
      --exclude-dir strings                directories to exclude (default [.git,.hg,.svn])
  -x, --exclude-ext strings                ignore file extensions (overrides include-ext) [comma separated list: e.g. go,java,js]
  -n, --exclude-file strings               ignore files with matching names (default [package-lock.json,Cargo.lock,yarn.lock,pubspec.lock,Podfile.lock,pnpm-lock.yaml])
      --file-gc-count int                  number of files to parse before turning the GC on (default 10000)
      --file-list-queue-size int           the size of the queue of files found and ready to be read into memory (default 4)
      --file-process-job-workers int       number of goroutine workers that process files collecting stats (default 4)
      --file-summary-job-queue-size int    the size of the queue used to hold processed file statistics before formatting (default 4)
  -f, --format string                      set output format [tabular, wide, json, json2, csv, csv-stream, cloc-yaml, html, html-table, sql, sql-insert, openmetrics] (default "tabular")
      --format-multi string                have multiple format output overriding --format [e.g. tabular:stdout,csv:file.csv,json:file.json]
      --gen                                identify generated files
      --generated-markers strings          string markers in head of generated files (default [do not edit,<auto-generated />])
  -h, --help                               help for scc
  -i, --include-ext strings                limit to file extensions [comma separated list: e.g. go,java,js]
      --include-symlinks                   if set will count symlink files
  -l, --languages                          print supported languages and extensions
      --large-byte-count int               number of bytes a file can contain before being removed from output (default 1000000)
      --large-line-count int               number of lines a file can contain before being removed from output (default 40000)
      --min                                identify minified files
  -z, --min-gen                            identify minified or generated files
      --min-gen-line-length int            number of bytes per average line for file to be considered minified or generated (default 255)
      --no-cocomo                          remove COCOMO calculation output
  -c, --no-complexity                      skip calculation of code complexity
  -d, --no-duplicates                      remove duplicate files from stats and output
      --no-gen                             ignore generated files in output (implies --gen)
      --no-gitignore                       disables .gitignore file logic
      --no-gitmodule                       disables .gitmodules file logic
      --no-hborder                         remove horizontal borders between sections
      --no-ignore                          disables .ignore file logic
      --no-large                           ignore files over certain byte and line size set by large-line-count and large-byte-count
      --no-min                             ignore minified files in output (implies --min)
      --no-min-gen                         ignore minified or generated files in output (implies --min-gen)
      --no-scc-ignore                      disables .sccignore file logic
      --no-size                            remove size calculation output
  -M, --not-match stringArray              ignore files and directories matching regular expression
  -o, --output string                      output filename (default stdout)
      --overhead float                     set the overhead multiplier for corporate overhead (facilities, equipment, accounting, etc.) (default 2.4)
  -p, --percent                            include percentage values in output
      --remap-all string                   inspect every file and remap by checking for a string and remapping the language [e.g. "-*- C++ -*-":"C Header"]
      --remap-unknown string               inspect files of unknown type and remap by checking for a string and remapping the language [e.g. "-*- C++ -*-":"C Header"]
      --size-unit string                   set size unit [si, binary, mixed, xkcd-kb, xkcd-kelly, xkcd-imaginary, xkcd-intel, xkcd-drive, xkcd-bakers] (default "si")
      --sloccount-format                   print a more SLOCCount like COCOMO calculation
  -s, --sort string                        column to sort by [files, name, lines, blanks, code, comments, complexity] (default "files")
      --sql-project string                 use supplied name as the project identifier for the current run. Only valid with the --format sql or sql-insert option
  -t, --trace                              enable trace output (not recommended when processing multiple files)
  -u, --uloc                               calculate the number of unique lines of code (ULOC) for the project
  -v, --verbose                            verbose output
      --version                            version for scc
  -w, --wide                               wider output with additional statistics (implies --complexity)

RESTEasyに対して実行。

$ scc
───────────────────────────────────────────────────────────────────────────────
Language                 Files     Lines   Blanks  Comments     Code Complexity
───────────────────────────────────────────────────────────────────────────────
Java                      3976    322762    44293     41051   237418      16317
XML                        225     15401     1190      1264    12947          0
AsciiDoc                    61     14414     3054         0    11360          0
Properties File             49      5746       37      4140     1569          0
Plain Text                  12       197       25         0      172          0
Python                       7       212       56        54      102          0
YAML                         7       721       54        58      609          0
Markdown                     4       260       72         0      188          0
Document Type Defin…         2         2        0         0        2          0
HTML                         2       216       34         0      182          0
SQL                          2         3        0         0        3          0
XML Schema                   2        54        3         0       51          0
Dockerfile                   1         0        0         0        0          0
JSON                         1        37        0         0       37          0
JavaScript                   1       541       54        76      411        132
Org                          1        16        0         0       16          0
Shell                        1        24        8         1       15          0
TOML                         1         5        0         0        5          0
───────────────────────────────────────────────────────────────────────────────
Total                     4355    360611    48880     46644   265087      16449
───────────────────────────────────────────────────────────────────────────────
Estimated Cost to Develop (organic) $9,465,709
Estimated Schedule Effort (organic) 32.31 months
Estimated People Required (organic) 26.03
───────────────────────────────────────────────────────────────────────────────
Processed 13426363 bytes, 13.426 megabytes (SI)
───────────────────────────────────────────────────────────────────────────────

ちょっと驚きますが、ものすごく速いです…。

よく見ると複雑度や期間、コストが出ているのも面白いですね。

1ファイルで計測。

$ scc resteasy-core/src/main/java/org/jboss/resteasy/core/SynchronousDispatcher.java
───────────────────────────────────────────────────────────────────────────────
Language                 Files     Lines   Blanks  Comments     Code Complexity
───────────────────────────────────────────────────────────────────────────────
Java                         1       554       50        75      429         50
───────────────────────────────────────────────────────────────────────────────
Total                        1       554       50        75      429         50
───────────────────────────────────────────────────────────────────────────────
Estimated Cost to Develop (organic) $11,109
Estimated Schedule Effort (organic) 2.49 months
Estimated People Required (organic) 0.40
───────────────────────────────────────────────────────────────────────────────
Processed 23518 bytes, 0.024 megabytes (SI)
───────────────────────────────────────────────────────────────────────────────

FastAPI。

$ scc
───────────────────────────────────────────────────────────────────────────────
Language                 Files     Lines   Blanks  Comments     Code Complexity
───────────────────────────────────────────────────────────────────────────────
Python                    1142     89909    11683      4299    73927       2423
Markdown                  1060    178775    74072         0   104703          0
YAML                        66      7128       83        32     7013          0
SVG                         51     12718        1         0    12717          1
Plain Text                   7        56        0         0       56          0
Shell                        4        29        7         4       18          0
CSS                          3       304       46        29      229          0
HTML                         3       105        1         0      104          0
JavaScript                   3       478       38        71      369         69
License                      1        21        4         0       17          0
TOML                         1       269       24        42      203          1
───────────────────────────────────────────────────────────────────────────────
Total                     2341    289792    85959      4477   199356       2494
───────────────────────────────────────────────────────────────────────────────
Estimated Cost to Develop (organic) $7,017,882
Estimated Schedule Effort (organic) 28.84 months
Estimated People Required (organic) 21.62
───────────────────────────────────────────────────────────────────────────────
Processed 18090919 bytes, 18.091 megabytes (SI)
───────────────────────────────────────────────────────────────────────────────

1ファイルで計測。

$ scc fastapi/applications.py
───────────────────────────────────────────────────────────────────────────────
Language                 Files     Lines   Blanks  Comments     Code Complexity
───────────────────────────────────────────────────────────────────────────────
Python                       1      4667      274      1137     3256        231
───────────────────────────────────────────────────────────────────────────────
Total                        1      4667      274      1137     3256        231
───────────────────────────────────────────────────────────────────────────────
Estimated Cost to Develop (organic) $93,306
Estimated Schedule Effort (organic) 5.58 months
Estimated People Required (organic) 1.48
───────────────────────────────────────────────────────────────────────────────
Processed 180276 bytes, 0.180 megabytes (SI)
───────────────────────────────────────────────────────────────────────────────

tokei

最後はtokeiです。こちらはUbuntu Linuxだとバイナリーをダウンロードすることになりますね。

$ curl -LO https://github.com/XAMPPRocky/tokei/releases/download/v12.1.2/tokei-x86_64-unknown-linux-gnu.tar.gz
$ tar xf tokei-x86_64-unknown-linux-gnu.tar.gz
$ cp tokei ~/.local/bin

バージョン。

$ tokei --version
tokei 12.1.2 compiled with serialization support: json, cbor, yaml

ヘルプ。

$ tokei --help
tokei 12.1.2 compiled with serialization support: json, cbor, yaml
Erin P. <xampprocky@gmail.com> + Contributors
Count your code, quickly.
Support this project on GitHub Sponsors: https://github.com/sponsors/XAMPPRocky

USAGE:
    tokei [FLAGS] [OPTIONS] [--] [input]...

FLAGS:
    -C, --compact             Do not print statistics about embedded languages.
    -f, --files               Will print out statistics on individual files.
    -h, --help                Prints help information
        --hidden              Count hidden files.
    -l, --languages           Prints out supported languages and their extensions.
        --no-ignore           Don't respect ignore files (.gitignore, .ignore, etc.). This implies --no-ignore-parent,
                              --no-ignore-dot, and --no-ignore-vcs.
        --no-ignore-dot       Don't respect .ignore and .tokeignore files, including those in parent directories.
        --no-ignore-parent    Don't respect ignore files (.gitignore, .ignore, etc.) in parent directories.
        --no-ignore-vcs       Don't respect VCS ignore files (.gitignore, .hgignore, etc.), including those in parent
                              directories.
    -V, --version             Prints version information
    -v, --verbose             Set log output level:
                                          1: to show unknown file extensions,
                                          2: reserved for future debugging,
                                          3: enable file level trace. Not recommended on multiple files

OPTIONS:
    -c, --columns <columns>                Sets a strict column width of the output, only available for terminal output.
    -e, --exclude <exclude>...             Ignore all files & directories matching the pattern.
    -i, --input <file_input>               Gives statistics from a previous tokei run. Can be given a file path, or
                                           "stdin" to read from stdin.
    -n, --num-format <num_format_style>    Format of printed numbers, i.e. plain (1234, default), commas (1,234), dots
                                           (1.234), or underscores (1_234). Cannot be used with --output. [possible
                                           values: commas, dots, plain, underscores]
    -o, --output <output>                  Outputs Tokei in a specific format. Compile with additional features for more
                                           format support. [possible values: cbor, json, yaml]
    -s, --sort <sort>                      Sort languages based on column [possible values: files, lines, blanks, code,
                                           comments]
    -t, --type <types>                     Filters output by language type, seperated by a comma. i.e. -t=Rust,Markdown

ARGS:
    <input>...    The path(s) to the file or directory to be counted.

RESTEasyで計測。

$ tokei
===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 AsciiDoc               61        14414        11301           59         3054
 HTML                    2          216          187            0           29
 Java                 3976       322762       237481        41025        44256
 JavaScript              1          541          455           48           38
 JSON                    1           37           37            0            0
 Org                     1           16           16            0            0
 Python                  7          212          106           50           56
 Shell                   1           24           15            1            8
 SQL                     2            3            3            0            0
 Plain Text             12          197            0          172           25
 XML                   225        15401        12951         1264         1186
-------------------------------------------------------------------------------
 Markdown                4          257            0          185           72
 |- BASH                 1            3            3            0            0
 (Total)                            260            3          185           72
===============================================================================
 Total                4294       354080       262552        42804        48724
===============================================================================

こちらも高速です。

単一ファイルで計測。

$ tokei resteasy-core/src/main/java/org/jboss/resteasy/core/SynchronousDispatcher.java
===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 Java                    1          554          429           75           50
===============================================================================
 Total                   1          554          429           75           50
===============================================================================

FastAPIで計測。

$ tokei
===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 CSS                     3          304          229           29           46
 HTML                    3          105          104            0            1
 JavaScript              3          478          369           71           38
 Python               1142        89909        77889          721        11299
 Shell                   4           29           18            4            7
 SVG                    51        12718        12717            0            1
 Plain Text              7           56            0           56            0
 TOML                    1          269          203           42           24
 YAML                   40         5722         5717            5            0
-------------------------------------------------------------------------------
 Markdown             1060       169156            0        96171        72985
 |- BASH                 9           18           16            2            0
 |- CSS                  7           14           14            0            0
 |- Dockerfile          10          277          160           24           93
 |- HTML                 6           12           12            0            0
 |- JavaScript          14           40           36            4            0
 |- JSON               250         4334         4286            0           48
 |- Markdown             1            6            0            4            2
 |- Python             357         5281         4259          124          898
 |- TOML                 6          174          138            0           36
 |- TypeScript           6            6            6            0            0
 |- YAML                 2            2            2            0            0
 (Total)                         179320         8929        96329        74062
===============================================================================
 Total                2314       278746        97246        97099        84401
===============================================================================

単一ファイルで計測。

===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 Python                  1         4667         4597           23           47
===============================================================================
 Total                   1         4667         4597           23           47
===============================================================================

おわりに

ソースコードの規模を計測できるツール、cloc、scc、tokeiを試してみました。

ただ動かしただけなのですが、こういうのは1度触って覚えておくというのが大事なのかなと…。

機会があったら使ってみましょう。sccはおもしろいなと思いました。