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| -rw-r--r-- | gnu/packages/monitoring.scm | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gnu/packages/monitoring.scm b/gnu/packages/monitoring.scm index 1544efb614..1694f94b98 100644 --- a/gnu/packages/monitoring.scm +++ b/gnu/packages/monitoring.scm @@ -10,6 +10,7 @@ ;;; Copyright © 2021, 2022 Marius Bakke <marius@gnu.org> ;;; Copyright © 2021 Stefan Reichör <stefan@xsteve.at> ;;; Copyright © 2021 Raphaël Mélotte <raphael.melotte@mind.be> +;;; Copyright © 2022 Paul A. Patience <paul@apatience.com> ;;; ;;; This file is part of GNU Guix. ;;; @@ -682,3 +683,63 @@ processes which keep waking up the disk unnecessarily and thus prevent some power saving.") (home-page "https://github.com/martinpitt/fatrace") (license license:gpl3+))) + +(define-public pw + (package + (name "pw") + (version "2") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://www.kylheku.com/git/pw") + (commit (string-append "pw-" version)))) + (file-name (git-file-name name version)) + (sha256 + (base32 "1xn3qnzz48xan78cp83hfrcifrxx9lgnm14134qhyr5wvj7dk246")))) + (build-system gnu-build-system) + (arguments + (list #:tests? #f ; There are no tests + #:make-flags + #~(list (string-append "CC=" #$(cc-for-target)) + (string-append "DESTDIR=" #$output)) + #:phases + #~(modify-phases %standard-phases + (add-after 'unpack 'fix-makefile + (lambda _ + (substitute* "Makefile" + (("/share/man/man1 \\\\") "/share/man/man1; \\")))) + (delete 'configure) + (add-before 'install 'make-install-dirs + (lambda _ + (mkdir-p (string-append #$output "/bin")) + (mkdir-p (string-append #$output "/share/man/man1")) + (mkdir-p (string-append #$output "/share/man/man5"))))))) + (home-page "https://www.kylheku.com/cgit/pw/") + (synopsis "Monitor recent lines of output from pipe") + (description + "@command{pw} is Pipe Watch, a utility that continuously reads lines of +text from a pipe or pipe-like source, passes them through a FIFO buffer, and +maintains a display based on the occasional sampling of the contents of the +FIFO buffer, with useful features such as triggering and filtering. + +With @command{pw} you can: + +@itemize +@item Interactively apply and remove filters on-the-fly, without interrupting +the source. + +@item Make recurring patterns in the stream appear to ``freeze'' on the +screen, using triggers. + +@item Prevent the overwhelming amount of output from a program from flooding +the terminal, while consuming all of that output so that the program isn't +blocked. @command{pw} can pause its display updates entirely. + +@item Juggle multiple shell background jobs that produce output, yet execute +indefinitely without blocking. When @command{pw} runs as part of a shell +background job, it continues to consume input, process filters and take +snapshots, without displaying anything. When put into the foreground again, +display resumes. +@end itemize") + (license license:bsd-2))) |