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proxy.golang.org : github.com/ckatsak/glocc
Package glocc implements a relatively fast, parallel counter of lines of code in files and directories. It also includes a command line tool, glocc, which is handy for performing such counting and pretty printing (brief or extensive) of the results. glocc is an aggressively parallel solution to an embarrassingly parallel problem. The count for every file and every subdirectory is assigned to a separate goroutine. All spawned goroutines are properly synchronized and their independent results are merged later, on a higher level (level = on a per-subdirectory basis). It was originally written for use with personal projects and small codebases, and also to get in touch with the Go programming language. Performance-wise, it can be further improved (and hopefully will be, when I have more time). Simply run it with any number of files or directories as command line arguments: By default, only a summary of all counted lines is printed to the standard output. To print the results extensively in a tree-like format, it can be executed with the -a flag: The results can be printed in YAML (default) or JSON format, using the -o flag: Running it with the -h flag shows all options available. For use as a package, glocc exports `func CountLoc(root string) DirResult`, which, given a root directory, returns a struct of type DirResult, a custom (recursive) type that contains the results of counting all lines of code under this root directory. It also exports EnableLogging() and DisableLogging() functions, to enable and disable verbose logging to standard error, respectively, using a package-level logger. Note that verbose logging includes details about every line of every file visited, which might be quite ...verbose, and not that useful. For now, really huge source trees, like the Linux kernel source tree, might rarely cause glocc to crash, due the big number of blocked OS threads trying to handle the huge number of goroutines spawned. To be more precise, the exact problem is reported as: It cannot occur in small and medium-sized codebases, and it's also unlikely to occur in bigger ones too. Just be warned. I plan to hack around this problem once I have the time; maybe using some kind of pool or something, or by spawning the goroutines in some clever way. As long as this note is here though, the bug is probably still around. Theoretically, a quick and dirty solution would be to increase the number of operating system threads that a Go program can use, using the SetMaxThreads() function in runtime/debug; the default value is set to 10000 threads. However, mind that (quoted from https://golang.org/pkg/runtime/debug/#SetMaxThreads): Ada, assembly, AWK, C, C++, C#, D (not the ddoc comments), Delphi, Dockerfile, Eiffel, Elixir, Erlang, Go, Haskell, HTML, Java, Javascript, JSON, Kotlin, Lisp, Makefile, Matlab, OCaml, Perl (not __END__ comments), PHP, PowerShell, Python, R, Ruby (not __END__ comments), Rust, Scala, Scheme, shell scripts, SQL, Standard ML, TeX, Tcl, YAML.
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purl: pkg:golang/github.com/ckatsak/glocc
Keywords: cli, cloc, code, command-line-tool, count-lines, count-lines-of-code, go, golang, package
License: BSD-3-Clause
Latest release: over 6 years ago
First release: over 6 years ago
Namespace: github.com/ckatsak
Dependent packages: 2
Dependent repositories: 1
Stars: 2 on GitHub
Forks: 0 on GitHub
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Last synced: 9 days ago