Re: Emacs Shell Ansi Colors

[Andreas Politz <politza@fh-trier.de>]

Lorenzo Isella wrote:
> OK,
> I think we are getting to the bottom of this. Apologies in advance for
> the long email, but there are several suggestions here about what to
> modify (and how), and my knowledge of shell scripting is clearly on a
> different league wrt the one of many people on the list.
> To make a long story short, this is the output of your command:
> 
> ~$ env | grep TERM
> TERM=xterm
> COLORTERM=gnome-terminal
> 
> and this is my .bashrc file (or better: the part about aliases and
> colors, which I think is relevant here):
> 
> # set a fancy prompt (non-color, unless we know we "want" color)
> case "$TERM" in
> xterm-color)
>     PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$
> '
>     ;;
> *)
>     PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
>     ;;
> esac
> 
> # Comment in the above and uncomment this below for a color prompt
> #PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$
> '
> 
> # If this is an xterm set the title to user@host:dir
> case "$TERM" in
> xterm*|rxvt*)
>     PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD/$HOME/~}\007"'
>     ;;
> *)
>     ;;
> esac
> 
> # Alias definitions.
> # You may want to put all your additions into a separate file like
> # ~/.bash_aliases, instead of adding them here directly.
> # See /usr/share/doc/bash-doc/examples in the bash-doc package.
> 
> #if [ -f ~/.bash_aliases ]; then
> #    . ~/.bash_aliases
> #fi
> 
> # enable color support of ls and also add handy aliases
> if [ "$TERM" != "dumb" ]; then
>     eval "`dircolors -b`"
>     alias ls='ls --color=auto'
>     #alias dir='ls --color=auto --format=vertical'
>     #alias vdir='ls --color=auto --format=long'
> fi
> 
> # some more ls aliases
> #alias ll='ls -l'
> #alias la='ls -A'
> #alias l='ls -CF'
> 
> and this is my /etc/profile file:
> 
> # /etc/profile: system-wide .profile file for the Bourne shell (sh(1))
> # and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).
> 
> if [ "`id -u`" -eq 0 ]; then
>   PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11"
> else
>   PATH="/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games"
> fi
> 
> if [ "$PS1" ]; then
>   if [ "$BASH" ]; then
>     PS1='\u@\h:\w\$ '
>   else
>     if [ "`id -u`" -eq 0 ]; then
>       PS1='# '
>     else
>       PS1='$ '
>     fi
>   fi
> fi
> 
> export PATH
> 
> umask 022
> 
> 
> As to your suggestion:
> 
>> in case you need a drop-in solution for emacs, you can use the lines
>> below.
>>
>>    (comint-send-string (current-buffer) "alias ls='ls --color'")
>> then do a
>>    (comint-send-input)
> 
> please, do not laugh, but I am a bit at a loss about the way I should
> put this into my .emacs file. The part dealing with the shell is now:
> 
> (require 'shell-command)
> (shell-command-completion-mode)
> 
> 
> 
> ;; ;;Now I add another customization for the shell-mode
> 
> (autoload 'ansi-color-for-comint-mode-on "ansi-color" nil t)
> (add-hook 'shell-mode-hook 'ansi-color-for-comint-mode-on)
> 
> 
> (custom-set-variables
>  '(comint-scroll-to-bottom-on-input t)  ; always insert at the bottom
>  '(comint-scroll-to-bottom-on-output t) ; always add output at the bottom
>  '(comint-scroll-show-maximum-output t) ; scroll to show max possible output
>  '(comint-completion-autolist t)        ; show completion list when ambiguous
>  '(comint-input-ignoredups t)           ; no duplicates in command history
>  '(comint-completion-addsuffix t)       ; insert space/slash after
> file completion
>  )
> 
> 
> 
> ; make completion buffers disappear after 3 seconds.
> (add-hook 'completion-setup-hook
>   (lambda () (run-at-time 3 nil
>     (lambda () (delete-windows-on "*Completions*")))))
> 
> (add-hook 'shell-mode-hook '(lambda () (toggle-truncate-lines 1)))
> (setq comint-prompt-read-only t)
> 
> 
> What should I actually add to this?
> Hope this is the conclusion, thanks again to everybody.
> Cheers
> 
> Lorenzo
> 

> 
> 2008/9/29 Paul R <paul.r.ml@gmail.com>:
>> Lorenzo> So it looks like there could be a problem with the TERM
>> Lorenzo> environment variable (but do not ask me what this stands
>> Lorenzo> for). I suppose (hope?) this is a one-liner for somebody
>> Lorenzo> really knowledgeable about emacs. Kind Regards
>>
>> in case you need a drop-in solution for emacs, you can use the lines
>> below.
>>
>>    (comint-send-string (current-buffer) "alias ls='ls --color'")
>> then do a
>>    (comint-send-input)
>>
>> --
>>  Paul
>>
> 
> 
> 

Leave your .emacs as it is and create a file '~/.emacs_bash', insert
the following lines, save and you should have colors.

PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$
eval "`dircolors -b`"
alias ls='ls --color=auto'


-ap