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Improve situation for linux in-kernel VTs (TERM = "linux")

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This adds a special colorscheme and prompt function guaranteed to work
on a VT and activates them automatically if $TERM = "linux".

set_color is overridden to only allow the 8 colors VTs have (under the
assumption those are always the same) and the color variables are
shadowed with global ones so they don't pollute our nice capable terms.
This commit is contained in:
Fabian Homborg 2015-08-17 17:32:45 +02:00
parent d6c97a6a13
commit f71e877f18
2 changed files with 85 additions and 0 deletions
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58
share/functions/__fish_config_interactive.fish
View File

@ -254,4 +254,62 @@ function __fish_config_interactive -d "Initializations that should be performed
end
__fish_command_not_found_handler $argv
end
if test $TERM = "linux" # A linux in-kernel VT with 8 colors and 256/512 glyphs
# In a VT we have
# black (invisible)
# red
# green
# yellow
# blue
# magenta
# cyan
# white
# Pretty much just set at random
set -g fish_color_normal normal
set -g fish_color_command yellow
set -g fish_color_param cyan
set -g fish_color_redirection normal
set -g fish_color_comment red
set -g fish_color_error red
set -g fish_color_escape cyan
set -g fish_color_operator cyan
set -g fish_color_quote blue
set -g fish_color_autosuggestion yellow
set -g fish_color_valid_path
set -g fish_color_cwd green
set -g fish_color_cwd_root red
set -g fish_color_match cyan
set -g fish_color_history_current cyan
set -g fish_color_search_match cyan
set -g fish_color_selection blue
set -g fish_color_end yellow
set -g fish_color_host normal
set -g fish_color_status red
set -g fish_color_user green
set -g fish_pager_color_prefix cyan
set -g fish_pager_color_completion normal
set -g fish_pager_color_description yellow
set -g fish_pager_color_progress cyan
# Don't allow setting color other than what linux offers (see #2001)
functions -e set_color
function set_color
set -l term_colors black red green yellow blue magenta cyan white normal
for a in $argv
if not contains -- $a $term_colors
echo "Color not valid in TERM = linux: $a"
return 1
end
end
builtin set_color $argv
return $status
end
# Set fish_prompt to a VT-friendly version
# without color or unicode
function fish_prompt
fish_fallback_prompt
end
end
end

27
share/functions/fish_fallback_prompt.fish Normal file
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@ -0,0 +1,27 @@
# vim: set noet:
#
# Set the default prompt command.
function fish_fallback_prompt --description "A simple fallback prompt without too much color or special characters for linux VTs"
# Just calculate this once, to save a few cycles when displaying the prompt
if not set -q __fish_prompt_hostname
set -g __fish_prompt_hostname (hostname|cut -d . -f 1)
end
set -l color_cwd
set -l suffix
switch $USER
case root toor
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
end
set suffix '#'
case '*'
set color_cwd $fish_color_cwd
set suffix '>'
end
echo -n -s "$USER" @ "$__fish_prompt_hostname" ' ' (set_color $color_cwd) (prompt_pwd) (set_color normal) "$suffix "
end