App::BrowserUtils - Utilities related to browsers, particularly modern GUI ones
This document describes version 0.012 of App::BrowserUtils (from Perl distribution App-BrowserUtils), released on 2020-10-16.
This distribution includes several utilities related to browsers:
browsers-are-paused
kill-browsers
pause-browsers
ps-browsers
restart-browsers
start-browsers
terminate-browsers
unpause-browsers
Supported browsers: Firefox on Linux, Opera on Linux, Chrome on Linux, and Vivaldi on Linux.
Usage:
browsers_are_paused(%args) -> [status, msg, payload, meta]
Check whether browsers are paused.
Browser is defined as paused if all of its processes are in 'stop' state.
This function is not exported.
Arguments ('*' denotes required arguments):
quiet => true
users => array[unix::local_uid]
Kill browser processes that belong to certain user(s) only.
Returns an enveloped result (an array).
First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (payload) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.
Return value: (any)
pause_browsers(%args) -> [status, msg, payload, meta]
Pause (kill -STOP) browsers.
A modern browser now runs complex web pages and applications. Despite browser's power management feature, these pages/tabs on the browser often still eat considerable CPU cycles even though they only run in the background. Stopping (kill -STOP) the browser processes is a simple and effective way to stop CPU eating on Unix. It can be performed whenever you are not using your browser for a little while, e.g. when you are typing on an editor or watching a movie. When you want to use your browser again, simply unpause it.
ps_browsers(%args) -> [status, msg, payload, meta]
List browser processes.
restart_browsers(%args) -> [status, msg, payload, meta]
Restart browsers.
For each of the requested browser, first check whether browser processes (that run the current user) exist. If they do then terminate the browser first. After that, start the browser again.
Example on the CLI:
% restart-browsers --restart-firefox
To customize command:
% restart-browsers --start-firefox --firefox-cmd 'firefox -P myprofile'
when starting each browser, console output will be captured and returned in function metadata. Will wait for 2/5/10 seconds and check if the browsers have been started. If all browsers can't be started, will return 500; otherwise will return 200 but report the browsers that failed to start to the STDERR.
This function supports dry-run operation.
chrome_cmd => array[str]|str (default: "google-chrome")
firefox_cmd => array[str]|str (default: "firefox")
opera_cmd => array[str]|str (default: "opera")
restart_chrome => bool
restart_firefox => bool
restart_opera => bool
restart_vivaldi => bool
vivaldi_cmd => array[str]|str (default: "vivaldi")
Special arguments:
-dry_run => bool
Pass -dry_run=>1 to enable simulation mode.
start_browsers(%args) -> [status, msg, payload, meta]
Start browsers.
For each of the requested browser, check whether browser processes (that run as the current user) exist and if not then start the browser. If browser processes exist, even if all are paused, then no new instance of the browser will be started.
% start-browsers --start-firefox
To customize command to use to start:
% start-browsers --start-firefox --firefox-cmd 'firefox -P myprofile'
start_chrome => bool
start_firefox => bool
start_opera => bool
start_vivaldi => bool
terminate_browsers(%args) -> [status, msg, payload, meta]
Terminate (kill -KILL) browsers.
unpause_browsers(%args) -> [status, msg, payload, meta]
Unpause (resume, continue, kill -CONT) browsers.
Please visit the project's homepage at https://metacpan.org/release/App-BrowserUtils.
Source repository is at https://github.com/perlancar/perl-App-BrowserUtils.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-BrowserUtils
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
Utilities using this distribution: App::FirefoxUtils, App::ChromeUtils, App::OperaUtils, App::VivaldiUtils
App::BrowserOpenUtils
perlancar <perlancar@cpan.org>
This software is copyright (c) 2020, 2019 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install App::BrowserUtils, copy and paste the appropriate command in to your terminal.
cpanm
cpanm App::BrowserUtils
CPAN shell
perl -MCPAN -e shell install App::BrowserUtils
For more information on module installation, please visit the detailed CPAN module installation guide.