mesonbuild/meson

Add meson option to force color output when output is not tty

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#2,486 opened on Oct 12, 2017

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 (2 comments) (8 reactions) (0 assignees)Python (4,978 stars) (1,465 forks)batch import
enhancementhelp wanted

Description

meson disables color output if stdout is not tty, as below:

mesonbuild/mlog.py:

colorize_console = platform.system().lower() != 'windows' and os.isatty(sys.stdout.fileno()) and \ os.environ.get('TERM') != 'dumb'

This works good normally. But colored log files are needed for sharing log across html email / link ( to pin point the exact areas of concern ( red / yellow warnings etc ). Colored output is much faster to debug than plain text. Screenshot is a very limiting option. An option to meson ( similar to ls --color=always ) should help here.

Example color log file:

root@vbox:~# apt-get install aha

set colorize_console = True in mesonbuild/mlog.py

user@vbox:/local/meson/source$ meson ../build | aha > ../build/log.html

meson-color-output

Contributor guide

Tech stack
python
Domain
clibuild systemdeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
PythonMeson build systemcommand line option design
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
The issue requests adding a Meson command line option, similar to ' color=always', to force color output even when stdout is not a TTY. The relevant code is in mesonbuild/mlog.py where colorize console is set. The implementation involves modifying that condition to check the new option. The issue is old (2017); verify it is still open and not superseded by other changes.