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ohmyzsh/plugins/chruby/chruby.plugin.zsh
Marc Cornellà 40a60d2847
chruby: add "system" to completion list if available (#5280)
Detect system Ruby in default `PATH`, and provide "system" completion if found.

Tested with [the Dockerfile](https://gist.github.com/franklinyu/b8deda6a5093a17b575679b5808b371f).
2018-10-01 16:50:17 +02:00

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#
# INSTRUCTIONS
#
# With either a manual or brew installed chruby things should just work.
#
# If you'd prefer to specify an explicit path to load chruby from
# you can set variables like so:
#
# zstyle :omz:plugins:chruby path /local/path/to/chruby.sh
# zstyle :omz:plugins:chruby auto /local/path/to/auto.sh
#
# TODO
# - autodetermine correct source path on non OS X systems
# - completion if ruby-install exists
# rvm and rbenv plugins also provide this alias
alias rubies='chruby'
_homebrew-installed() {
whence brew &> /dev/null
_xit=$?
if [ $_xit -eq 0 ];then
# ok , we have brew installed
# speculatively we check default brew prefix
if [ -h /usr/local/opt/chruby ];then
_brew_prefix="/usr/local/opt/chruby"
else
# ok , it is not default prefix
# this call to brew is expensive ( about 400 ms ), so at least let's make it only once
_brew_prefix=$(brew --prefix chruby)
fi
return 0
else
return $_xit
fi
}
_chruby-from-homebrew-installed() {
[ -r _brew_prefix ] &> /dev/null
}
_ruby-build_installed() {
whence ruby-build &> /dev/null
}
_ruby-install-installed() {
whence ruby-install &> /dev/null
}
# Simple definition completer for ruby-build
if _ruby-build_installed; then
_ruby-build() { compadd $(ruby-build --definitions) }
compdef _ruby-build ruby-build
fi
_source_from_omz_settings() {
local _chruby_path
local _chruby_auto
zstyle -s :omz:plugins:chruby path _chruby_path
zstyle -s :omz:plugins:chruby auto _chruby_auto
if [[ -r ${_chruby_path} ]]; then
source ${_chruby_path}
fi
if [[ -r ${_chruby_auto} ]]; then
source ${_chruby_auto}
fi
}
_chruby_dirs() {
chrubydirs=($HOME/.rubies/ $PREFIX/opt/rubies)
for dir in chrubydirs; do
if [[ -d $dir ]]; then
RUBIES+=$dir
fi
done
}
if _homebrew-installed && _chruby-from-homebrew-installed ; then
source $_brew_prefix/share/chruby/chruby.sh
source $_brew_prefix/share/chruby/auto.sh
_chruby_dirs
elif [[ -r "/usr/local/share/chruby/chruby.sh" ]] ; then
source /usr/local/share/chruby/chruby.sh
source /usr/local/share/chruby/auto.sh
_chruby_dirs
else
_source_from_omz_settings
_chruby_dirs
fi
function ensure_chruby() {
$(whence chruby)
}
function current_ruby() {
local _ruby
_ruby="$(chruby |grep \* |tr -d '* ')"
if [[ $(chruby |grep -c \*) -eq 1 ]]; then
echo ${_ruby}
else
echo "system"
fi
}
function chruby_prompt_info() {
echo "$(current_ruby)"
}
# complete on installed rubies
_chruby() {
compadd $(chruby | tr -d '* ')
local default_path='/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
if PATH=${default_path} type ruby &> /dev/null; then
compadd system
fi
}
compdef _chruby chruby