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executable file 46 lines (38 sloc) 1.267 kb
#!/usr/bin/env bash
add(){
token="$1"
eval "${token}_flag=1" ; shift
if [[ ! -z "$format" ]] ; then
format="${format}-\$${token}"
else
format="\$${token}"
fi
}
if which ruby 2>/dev/null | grep -q 'rvm' ; then
unset format
while [[ $# -gt 0 ]] ; do
token="$1" ; shift
case "$token" in
i|interpreter) add "interpreter" ;;
v|version) add "version" ;;
p|patchlevel) add "patchlevel" ;;
r|revision) add "revision" ;;
a|architecture) add "architecture" ;;
*) echo "Unrecognized command line option '$token' for $0" ; exit 1 ;;
esac
done
if [[ -z "$format" ]] ; then
add "interpreter"
add "version"
add "patchlevel"
fi
ruby_string=$(dirname "$(which ruby 2>/dev/null)" | xargs dirname | xargs basename)
(( $interpreter_flag )) && interpreter="$(echo $ruby_string | awk -F'-' '{print $1}')"
(( $version_flag )) && version="$(echo $ruby_string | awk -F'-' '{print $2}')"
(( $patchlevel_flag )) && patchlevel=$(echo $ruby_string | awk -F'-' '{print $3}')
(( $architecture_flag )) && architecture="$(echo "$(ruby -v)" | sed 's/^.*\[//' | sed 's/\].*$//')"
command="prompt=\"[$format]\""
eval "$command"
echo "${prompt/-]/]}"
fi
exit 0
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