.zsh/20_Prompts.zsh

   1 # -*- mode: sh;-*-
   2
   3 # how often should the periodic function be called? I take every 30seconds here.
   4 # Important: The periodic function is only called when
   5 #   - the defined time $PERIOD elapsed
   6 # *AND*
   7 #   - the prompt gets displayed again!
   8 # Its not cron-like "execute this really every 30s in the background"!
   9 #
  10 # But for sanity reasons - make this conditional on existance of tools, but never
  11 # overwrite existing values
  12 if which yacpi > /dev/null; then
  13         (( ${+PERIOD} )) || export PERIOD=30
  14         LAPTOP=yacpi
  15 elif which ibam > /dev/null; then
  16         (( ${+PERIOD} )) || export PERIOD=30
  17         LAPTOP=ibam
  18 else
  19         (( ${+PERIOD} )) || unset PERIOD
  20         unset LAPTOP
  21 fi
  22
  23 # the following is for prompt and gets modified in periodic()
  24 typeset -A ACPIDISPLAY
  25 # I know, this stuff is currently made only for my laptop. But right now i cant be bothered
  26 # to make it more generic
  27 PR_SLASH='${PR_YELLOW}/${PR_RED}'
  28 TOOLONG=0
  29
  30 # I call periodic here one time to have all the variables it sets initialized. Or
  31 # the first prompt would look ugly.
  32 periodic
  33
  34 # gather version control information for inclusion in a prompt
  35 # we will only be using one variable, so let the code know now.
  36 autoload -Uz vcs_info && vcs_info
  37 zstyle ':vcs_info:*' max-exports 1
  38 zstyle ':vcs_info:*' disable cdv darcs mtn tla hg
  39 zstyle ':vcs_info:*' use-prompt-escapes
  40 zstyle ':vcs_info:*' use_simple
  41
  42 # change vcs_info formats for the prompt
  43 if [[ "$TERM" == dumb ]] ; then
  44         zstyle ':vcs_info:*' actionformats "(%s%)-[%b|%a] "
  45         zstyle ':vcs_info:*' formats       "(%s%)-[%b] "
  46 else
  47     # these are the same, just with a lot of colours:
  48 #       zstyle ':vcs_info:*' actionformats "$%s${PR_YELLOW})${PR_CYAN}-${PR_YELLOW}[${PR_GREEN}%b${PR_YELLOW}|${PR_RED}%a${PR_YELLOW}]${PR_NO_COLOUR}"
  49         zstyle ':vcs_info:(sv[nk]|bzr):*' branchformat "%b%{$fg[red]%}:%{$fg[yellow]%}%r"
  50     zstyle ':vcs_info:git*' formats "%{$fg[yellow]%}%s %{$reset_color%} %{$fg[green]%}%b%{$reset_color%}%m%u%c%{$reset_color%} "
  51     zstyle ':vcs_info:git*' actionformats "%{$fg[yellow]%}%s%{$reset_color%} %{$fg[green]%}%b%{$reset_color%} $fg[red]%}(%a)%{$reset_color%} %m%u%c%{$reset_color%} "
  52 fi
  53
  54 PR_BARLENGTH=0
  55
  56 setprompt
  57
  58 # See if our (effective) group has changed at all.  (For instance, we're
  59 # in a subshell that is setgid.)  This happens when i type "newgrp group"
  60 # for whatever reason
  61 # I haven't put this in the precmd function because I don't expect
  62 # my effective group to change over the life of the shell.  It can if
  63 # I'm running with root privileges, but I deliberately don't use zsh for
  64 # root in any case, because that encourages me to not use root for
  65 # anything I don't have to use it for.
  66 if [[ "$ORIGGID" != "$EGID" ]]; then
  67   # Set for either normal prompt and xterm title bars.
  68     GNAME=$(grpname $EGID)
  69     if [[ "$TERM" = "xterm" ]]; then
  70         psvar[5]=":$GNAME"
  71     else
  72         psvar[5]="g[$GNAME] "
  73     fi
  74 else
  75     psvar[5]=
  76 fi