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provide plugin for rbfu the ruby version switcher

Evaluates $(rbfu --init --auto) if rbfu is installed on the system,
also has a custom rbfu-rubies method which lists the installed
rubies which are available to rbfu.

For compatibility with themes, also creates the rvm_prompt_info
function, so existing themes should work out of the box.
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commit e3ff4b58c6b0012c616ea7a1dc44cde7a2ecfb57 1 parent d165a84
@lwe lwe authored
Showing with 42 additions and 0 deletions.
  1. +42 −0 plugins/rbfu/rbfu.plugin.zsh
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42 plugins/rbfu/rbfu.plugin.zsh
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+# Enables rbfu with --auto option, if available.
+#
+# Also provides a command to list all installed/available
+# rubies. To ensure compatibility with themes, creates the
+# rvm_prompt_info function to return the $RBFU_RUBY_VERSION
+# version.
+
+command -v rbfu &>/dev/null
+
+if [[ $? -eq 0 ]]; then
+ eval "$(rbfu --init --auto)"
+
+ # Internal: Print ruby version details, if it's currently
+ # active etc.
+ function _rbfu_rubies_print() {
+ local rb rb_out
+ rb=$(basename $1)
+ rb_out="$rb"
+ [[ -h $1 ]] && rb_out="$rb_out${fg[green]}@${reset_color}"
+ [[ "x$rb" == "x$2" ]] && rb_out="${fg[red]}$rb_out ${fg[red]}*${reset_color}"
+ echo $rb_out
+ }
+
+ # Public: Provide a list with all available rubies, this basically depends
+ # on `ls -1` and .rfbu/rubies. Highlights the currently active ruby version
+ # and aliases.
+ function rbfu-rubies() {
+ local rbfu_dir active_rb
+ rbfu_dir=$RBFU_RUBIES
+ active_rb=$RBFU_RUBY_VERSION
+ [[ -z "$rbfu_dir" ]] && rbfu_dir="${HOME}/.rbfu/rubies"
+ [[ -z "$active_rb" ]] && active_rb="system"
+ _rbfu_rubies_print "${rbfu_dir}/system" $active_rb
+ for rb in $(ls -1 $rbfu_dir); do
+ _rbfu_rubies_print "${rbfu_dir}/${rb}" $active_rb
+ done
+ }
+
+ # Public: Create rvm_prompt_info command for themes compatibility, unless
+ # it has already been defined.
+ [ ! -x rvm_prompt_info ] && function rvm_prompt_info() { echo "${RBFU_RUBY_VERSION:=system}" }
+fi
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