Bug 500

Summary:	emerge output should not be coloured when redirected
Product:	Gentoo Linux	Reporter:	Arcady Genkin <agenkin-gentoo-bugzilla>
Component:	Current packages	Assignee:	Geert Bevin <gbevin>
Status:	RESOLVED DUPLICATE
Severity:	minor	CC:	agenkin-gentoo-bugzilla
Priority:	High
Version:	unspecified
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Arcady Genkin 2002-02-02 13:00:49 UTC

It would be nice if emerge would not output color escape sequences when 
redirected to a pipe or a file.  Assuming that Python allows to check the type 
of the file descriptor, of course.

It's unnerving to see the "junk" when piping the output to `less', for 
example. ;^)

Comment 1 Chad Huneycutt (RETIRED) gentoo-dev

2002-02-02 18:45:29 UTC

I think 'less -r' (which should be the default in newer baselayouts) will do
what you want.  For other cases, if there is not already, we should probably
provide an option to emerge that disables color (like keychain).

Comment 2 Arcady Genkin 2002-02-02 22:56:29 UTC

"less -r" does what you say, but my main point was that whenever the output goes
to anything other than a terminal, the color escapes are, probably, not
welcome.  So, if there is a way to detect what sort of a file descriptor the
stdout is, the output should not be coloured unless it is a tty.

Comment 3 Geert Bevin 2002-02-03 16:24:17 UTC

Imho it's not possible to detect this automatically, therefor marking as
duplicate of bug 414

*** This bug has been marked as a duplicate of 414 ***