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|
# Environment variables:
#
# PS1_SHOWHOSTNAME
# 'auto' (default): Only show hostname over SSH
# 'yes': Always show hostname
# anything else: Never show hostname
__show-hostname ()
{
case "${PS1_SHOWHOSTNAME}" in
(''|auto)
[ "${SSH_CONNECTION}" ]
return $?;;
(yes)
return 0;;
(*)
return 1;;
esac
}
__set-title ()
{
local title
local git_root=$(git root 2> /dev/null)
if [ ${git_root} ]
then
title=$(basename ${git_root})
else
local path=${PWD/~/\~}
if __show-hostname
then
title="${USER}@${HOSTNAME}:${path}"
else
title="${USER}:${path}"
fi
fi
echo -ne "\033]2;${title}\007"
}
# In order to know how much space PS1 takes, Bash needs us to delimit
# non-printing characters with \[ and \].
__start-nonprinting ()
{
if [ ${BUILDING_PS1} ]
then
echo -en '\['
fi
}
__end-nonprinting ()
{
if [ ${BUILDING_PS1} ]
then
echo -en '\]'
fi
}
__fontify ()
{
local -A codes
codes[red]='31'
codes[green]='32'
codes[blue]='34'
codes[white]='37'
codes[bold]='1'
codes[dim]='2'
codes[clear]='0'
local text=$1
shift
output=$(__start-nonprinting)
output+='\033['
for ((i=1; i<=$#; i++))
do
output+=${codes[${!i}]}
if ((i<$#))
then
output+=';'
else
output+='m'
fi
done
output+=$(__end-nonprinting)
output+="${text}"
output+=$(__start-nonprinting)
output+='\033[0m'
output+=$(__end-nonprinting)
echo -en "${output}"
}
__set-prompt ()
{
BUILDING_PS1=t
local last_status=$1
PS1=''
if [ ${last_status} -ne 0 ]
then
PS1+=$(__fontify "${last_status} " bold red)
fi
PS1+=$(__fontify '\u' green)
if __show-hostname
then
PS1+=$(__fontify '@\H' dim green)
fi
PS1+=$(__fontify : dim)
PS1+=$(__fontify '\w' bold blue)
PS1+=$(__fontify "$(__git_ps1 '(%s)')" red)
PS1+=$(__fontify '\$' dim)
PS1+=' '
BUILDING_PS1=
}
__draw-rule ()
{
rule=''
for ((i=0; i<COLUMNS; i++))
do
rule+=—
done
__fontify ${rule} dim
}
__refresh-terminal ()
{
local last_status=$?
__set-title
__set-prompt ${last_status}
__draw-rule
}
. /usr/lib/git-core/git-sh-prompt
GIT_PS1_SHOWDIRTYSTATE=t
GIT_PS1_SHOWUPSTREAM=auto
export PROMPT_COMMAND=__refresh-terminal
|
