[gentoo-user] Globally disabling colour

[gentoo-user] Globally disabling colour

[Dr Rainer Woitok]

Greetings,

having freshly erm ... converted from Ubuntu to Gentoo and thus being an
absolute Gentoo newbie  I'm desparately looking  for a way to get rid of
all the colour in the output  produced by "emerge"  but also by "qlist",
"eix", "e-file" and so on.

Is there a way to globally configure this for all these commands?   I've
already added  'NOCLOR="false"'  to my "make.conf" file but this doesn't
seem to do the trick.  Do I really have to remember for each call to one
of these commands to disable colour individually and in addition have to
remember what's the correct "nocolor" option for the command at hand?

Any pointers welcome ... :-)

Sincerely,
  Rainer

Re: [gentoo-user] Globally disabling colour

[Arve Barsnes]

On Tue, 1 Oct 2019 at 13:28, Dr Rainer Woitok <rainer.woitok@gmail.com> wrote:
> having freshly erm ... converted from Ubuntu to Gentoo and thus being an
> absolute Gentoo newbie  I'm desparately looking  for a way to get rid of
> all the colour in the output  produced by "emerge"  but also by "qlist",
> "eix", "e-file" and so on.
>
> Is there a way to globally configure this for all these commands?   I've
> already added  'NOCLOR="false"'  to my "make.conf" file but this doesn't
> seem to do the trick.  Do I really have to remember for each call to one
> of these commands to disable colour individually and in addition have to
> remember what's the correct "nocolor" option for the command at hand?

There was a similar question from someone else this summer, maybe this
will help you.

https://archives.gentoo.org/gentoo-user/message/e0528fd2b468b350aac9ff440f132683

Regards,
Arve

Re: [gentoo-user] Globally disabling colour

[Mick]

On Tue, 1 Oct 2019 at 12:29, Dr Rainer Woitok <rainer.woitok@gmail.com> wrote:
>
> Greetings,
>
> having freshly erm ... converted from Ubuntu to Gentoo and thus being an
> absolute Gentoo newbie  I'm desparately looking  for a way to get rid of
> all the colour in the output  produced by "emerge"  but also by "qlist",
> "eix", "e-file" and so on.
>
> Is there a way to globally configure this for all these commands?   I've
> already added  'NOCLOR="false"'  to my "make.conf" file but this doesn't
> seem to do the trick.

I don't know if you have misspelled the above parameter.  Try setting:

NOCOLOR="true"

However, terminal colors are set differently - see thread mentioned by Arve.
-- 
Regards,
Mick

Re: [gentoo-user] Globally disabling colour

[Håkon Alstadheim]

Den 01.10.2019 13:28, skrev Dr Rainer Woitok:
> Greetings,
>
> having freshly erm ... converted from Ubuntu to Gentoo and thus being an
> absolute Gentoo newbie  I'm desparately looking  for a way to get rid of
> all the colour in the output  produced by "emerge"  but also by "qlist",
> "eix", "e-file" and so on.
>
> Is there a way to globally configure this for all these commands?   I've
> already added  'NOCLOR="false"'  to my "make.conf" file but this doesn't
> seem to do the trick.  Do I really have to remember for each call to one
> of these commands to disable colour individually and in addition have to
> remember what's the correct "nocolor" option for the command at hand?
>
> Any pointers welcome ... :-)

I've got this in make.conf, which gets me part-way there:

CMAKE_COLOR_MAKEFILE=OFF
NOCOLOR="true"
GCC_COLORS=""

I've also got this in /usr/local/bin/rustc and symlinked to 
/usr/local/bin/cargo:

----/usr/local/bin/rustc:----#!/usr/bin/perlmy @newargs=();my $skipnext=0;my $me=$0;$me =~ 
s(.*\/)();push @newargs, "--color";push @newargs, "never";foreach $arg 
(@ARGV) {    if($arg eq "--color"){    $skipnext =1;    } 
elsif($skipnext == 1){    $skipnext = 0;    } else { # any arg EXCEPT 
color gets passed along verbatim     push @newargs, $arg    
}}exec("/usr/bin/${me}",@newargs);
---

This last trick could probably be used for other commands as well 
(modulo specific argument)

Re: [gentoo-user] Globally disabling colour

[Dr Rainer Woitok]

Hakon,

On Tuesday, 2019-10-01 16:07:55 +0200, you wrote:

> ...
> I've got this in make.conf, which gets me part-way there:
> 
> CMAKE_COLOR_MAKEFILE=OFF
> NOCOLOR="true"
> GCC_COLORS=""

I already had the  "NOCOLOR" environment variable set  (there was a typo
in my mail, not in my "make.conf" file :-),  but the Cmake and Gcc spec-
ific environment variables were not yet there.  Thankyou for this tip.

> I've also got this in /usr/local/bin/rustc and symlinked to 
> /usr/local/bin/cargo:

This assumes "/usr/local/bin" to precede "/usr/bin" in environment vari-
able "PATH".  Can I set this for Portage only in "make.conf"?

> ----/usr/local/bin/rustc:----#!/usr/bin/perlmy @newargs=();my $skipnext=0;my $me=$0;$me =~ 
> s(.*\/)();push @newargs, "--color";push @newargs, "never";foreach $arg 
> (@ARGV) {    if($arg eq "--color"){    $skipnext =1;    } 
> elsif($skipnext == 1){    $skipnext = 0;    } else { # any arg EXCEPT 
> color gets passed along verbatim     push @newargs, $arg    
> }}exec("/usr/bin/${me}",@newargs);
> ---

Alas,  this code snippet did not survive  mail transmission :-(.   Could
you please run

   perl -MMIME::Base64 -ne 'print encode_base64($_)' < /usr/local/bin/rustc

and post (or send me privately) the base64 encoded output?  Thankyou.

Sincerely,
  Rainer

Re: [gentoo-user] Globally disabling colour

[Håkon Alstadheim]

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Den 02.10.2019 11:01, skrev Dr Rainer Woitok:
> Hakon,
>
> On Tuesday, 2019-10-01 16:07:55 +0200, you wrote:
>
>> ...
>> I've got this in make.conf, which gets me part-way there:
>>
>> CMAKE_COLOR_MAKEFILE=OFF
>> NOCOLOR="true"
>> GCC_COLORS=""
> I already had the  "NOCOLOR" environment variable set  (there was a typo
> in my mail, not in my "make.conf" file :-),  but the Cmake and Gcc spec-
> ific environment variables were not yet there.  Thankyou for this tip.
>
>> I've also got this in /usr/local/bin/rustc and symlinked to
>> /usr/local/bin/cargo:
> This assumes "/usr/local/bin" to precede "/usr/bin" in environment vari-
> able "PATH".  Can I set this for Portage only in "make.conf"?
Correct.
>> ----/usr/local/bin/rustc:----#!/usr/bin/perlmy @newargs=();my $skipnext=0;my $me=$0;$me =~
>> s(.*\/)();push @newargs, "--color";push @newargs, "never";foreach $arg
>> (@ARGV) {    if($arg eq "--color"){    $skipnext =1;    }
>> elsif($skipnext == 1){    $skipnext = 0;    } else { # any arg EXCEPT
>> color gets passed along verbatim     push @newargs, $arg  Â
>> }}exec("/usr/bin/${me}",@newargs);
>> ---
> Alas,  this code snippet did not survive  mail transmission :-(.   Could
> you please run
>
>     perl -MMIME::Base64 -ne 'print encode_base64($_)' < /usr/local/bin/rustc
>
> and post (or send me privately) the base64 encoded output?  Thankyou.
>
> Sincerely,
>    Rainer

Just doing an attachment, so you'll get the charset as well. Don't know 
if that gets through to the list.



[-- Attachment #2: rustc --]
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#!/usr/bin/perl
my @newargs=();
my $skipnext=0;
my $me=$0;
$me =~ s(.*\/)();
#print STDERR "$me\n";
push @newargs, "--color";
push @newargs, "never";
foreach $arg (@ARGV) {
    if($arg eq "--color"){
	$skipnext =1;
    } elsif($skipnext == 1){
	$skipnext = 0;
    } else {
	push @newargs, $arg
    }
#    print STDERR "$arg\n";
}
exec("/usr/bin/${me}",@newargs);
#foreach $arg (@newargs) {
#    print STDERR "$arg\n";
#}
#exit 0;
#exec /usr/bin/rustc "$@"

Re: [gentoo-user] Globally disabling colour

[Dr Rainer Woitok]

Greetings and a Happy New Year to all of you :-)

Way back on Tuesday, 2019-10-01 16:07:55 +0200, Håkon Alstadheim wrote:

> Den 01.10.2019 13:28, skrev Dr Rainer Woitok:
> > ...
> >                         I'm desparately looking  for a way to get rid of
> > all the colour in the output  produced by "emerge"  but also by "qlist",
> > "eix", "e-file" and so on.
> > ...
> ...
> I've also got this in /usr/local/bin/rustc and symlinked to 
> /usr/local/bin/cargo:
> 
> ----/usr/local/bin/rustc:----
> #!/usr/bin/perl
> my @newargs=();
> my $skipnext=0;
> my $me=$0;
> $me =~ s(.*\/)();
> push @newargs, "--color";
> push @newargs, "never";
> foreach $arg (@ARGV) {
>     if($arg eq "--color"){
> 	$skipnext =1;
>     } elsif($skipnext == 1){
> 	$skipnext = 0;
>     } else {
> 	push @newargs, $arg
>     }
> }
> exec("/usr/bin/${me}",@newargs);

I've used this script ever since  (even though  I had to slightly modify
it when I learned that  "--color=yes"  is also a valid option  which was
not detected  by the original version).   However, yesterday I found the
following:

   error: cannot specify the `--color` option with `--json`

Regardless of whether this  was a change to "rustc"  or of whether up to
now none of my builds used "rustc" with "--json": the effort to keep the
script compatible  with the current versions  of "rustc" and "cargo" now
by far outweighs the nuisance of colour in build logs for me.  Of course
anybody else's milage  might vary,  but I think  anybody else using this
script should at least know.

It was a nice workaround, though.  Thankyou Hakon :-)

Sincerely,
  Rainer

Re: [gentoo-user] Globally disabling colour

[Robert Bridge]

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I had this issue many moons ago, which lead to my discovery of the
ansifilter package:

> # emerge -pv ansifilter | ansifilter
>
> These are the packages that would be merged, in order:
>
> Calculating dependencies  . ... done!
> [ebuild   R    ] app-text/ansifilter-2.15::gentoo  USE="qt5" 0 KiB
>
> Total: 1 package (1 reinstall), Size of downloads: 0 KiB

It strips all the terminal escape chars which are how applications do the
color in their terminal output. Very handy when combined with pastebin
utilities.

Cheers,
Robert.

>
>

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Re: [gentoo-user] Globally disabling colour

[Dr Rainer Woitok]

Robert,

On Sunday, 2020-01-05 12:17:23 +0000, you wrote:

> I had this issue many moons ago, which lead to my discovery of the
> ansifilter package:
> 
> > # emerge -pv ansifilter | ansifilter

Nice find.  However, this only produces a clean terminal window but does
not prevent all the garbage in "/var/log/portage/" :-\

Sincerely,
  Rainer

Re: [gentoo-user] Globally disabling colour

[Robert Bridge]

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But it can easily strip the garbage from that file when you need to use the
contents...

> # ansifilter /var/log/portage/elog/summary.log-20200105 | less

On Sun, 5 Jan 2020 at 12:45, Dr Rainer Woitok <rainer.woitok@gmail.com>
wrote:

> Robert,
>
> On Sunday, 2020-01-05 12:17:23 +0000, you wrote:
>
> > I had this issue many moons ago, which lead to my discovery of the
> > ansifilter package:
> >
> > > # emerge -pv ansifilter | ansifilter
>
> Nice find.  However, this only produces a clean terminal window but does
> not prevent all the garbage in "/var/log/portage/" :-\
>
> Sincerely,
>   Rainer
>
>

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