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executable file 225 lines (116 sloc) 3.764 kb
#!/usr/bin/env bash
add()
{
token=${1:-""}
eval "${token}_flag=1" ; shift
if [[ -n "$format" ]] ; then
[[ ${previous_is_format_var:-0} == 1 ]] && eval "${token}_prefix_flag=1"
format="${format}\$${token}"
else
format="\$${token}"
fi
previous_is_format_var=1
return 0
}
add_raw_token()
{
previous_is_format_var=0
token=${1:-""}
format="${format:-""}${token}"
return 0
}
rvm_gemset_separator="${rvm_gemset_separator:-"@"}"
ruby=$( builtin command -v ruby | grep -v $rvm_path/bin/ruby )
if [[ -n "$ruby" && -n "$(echo "$ruby" | awk '/rvm/{print}')" ]] ; 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" ;;
g|gemset) add "gemset" ;;
u|unicode) add "unicode" ;;
s|system) ;; #skip when in ruby
-d|--no-default) no_default=1 ;;
*) add_raw_token "$token" ;;
esac
done
if [[ -z "${format:-""}" ]] ; then
for default in interpreter version patchlevel gemset ; do
add "$default"
done
fi
ruby_string=$(dirname "$ruby" | xargs dirname | xargs basename)
if [[ -n "$no_default" ]]; then
# Do not display anything if no default flag was provided
# and we are using the default ruby
# Only people who explicitely ask for this will have the
# slight performance penalty associated.
if [[ "$(rvm tools identifier)" == "$(rvm alias show default)" ]] ; then
exit 0
fi
fi
strings=(${ruby_string//-/ })
if [[ ${interpreter_flag:-0} -gt 0 || -n "$unicode_flag" ]] ; then
interpreter=${strings[0]}
[[ ${interpreter_prefix_flag:-0} -gt 0 ]] && interpreter="-${interpreter}"
fi
if [[ ${version_flag:-0} -gt 0 || -n "$unicode_flag" ]] ; then
version=${strings[1]}
[[ ${version_prefix_flag:-0} -gt 0 ]] && version="-${version}"
fi
if [[ ${#strings[@]} -gt 2 ]] ; then
if [[ ${patchlevel_flag:-0} -gt 0 ]] ; then
patchlevel=${strings[2]}
[[ ${patchlevel_prefix_flag:-0} -gt 0 ]] && patchlevel="-${patchlevel}"
fi
fi
if [[ ${architecture_flag:-0} -gt 0 ]] ; then
architecture="$(echo "$(ruby -v)" | sed 's/^.*\[//' | sed 's/\].*$//')"
[[ ${architecture_prefix_flag:-0} -gt 0 ]] && architecture="-${architecture}"
fi
if [[ ${gemset_flag:-0} -gt 0 ]] ; then
case "${GEM_HOME:-""}" in
*${rvm_gemset_separator:-"@"}*)
gemset="${rvm_gemset_separator:-"@"}${GEM_HOME/*${rvm_gemset_separator:-"@"}/}"
;;
esac
fi
if [[ ${unicode_flag:-0} -gt 0 ]] ; then
case "$interpreter" in
jruby) unicode="" ;;
rbx) unicode="" ;;
ree) unicode="" ;;
macruby) unicode="" ;;
maglev) unicode="" ;;
ironruby) unicode="" ;;
system) unicode="" ;;
goruby) unicode="";;
ruby)
case ${version:-""} in
1.8.6) unicode="" ;;
1.8.7) unicode="" ;;
1.9.1) unicode="" ;;
1.9.2) unicode="" ;;
*) unicode="" ;;
esac ;;
*) unicode="" ;;
esac
if echo "$ruby_string" | \grep '-head' >/dev/null 2>&1 ; then
unicode="${unicode}"
fi
[[ ${unicode_prefix_flag:-0} -gt 0 ]] && unicode="-${unicode}"
fi
eval "echo \"$format\""
else
while [[ $# -gt 0 ]] ; do
token="$1" ; shift
case "$token" in
s|system) echo "system" ;;
esac
done
fi
exit 0
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