bug#10861: tee swallowing colours

[Pádraig Brady]

On 02/21/2012 08:16 AM, Carsten Palleske wrote:
>    Hi,
>    I use tee on W7 pro.
>    tee reports itself as follows:
>    Usage: tee [OPTION]... [FILE]...

>    I use tee often to duplicate output of several build processes. This
>    output happens to be coloured. However - once output is passed through
>    tee, the colours disappear. I would be happy to see preserved colours

tee doesn't adjust the data.
I'm guessing what's happening is the process
generating the colors is doing so conditionally
upon being connected to a tty.
This is fine as long as there is a way to override it.
Consider:

ls --color=always | tee -
ls --color=auto | tee -

cheers,
Pádraig.

p.s. if you want to display the output logs
containing ansi color codes etc. on a web page
you can process using a tool like:
http://www.pixelbeat.org/scripts/ansi2html.sh