[split] Move rvm plugin to oh-my-fish/plugin-rvm

https://github.com/oh-my-fish/plugin-rvm

plugins/rvm/rvm.fish

-function rvm -d 'Ruby enVironment Manager'
-
-  # run RVM and capture the resulting environment
-  set -l env_file (mktemp -t rvm.fish.XXXXXXXXXX)
-
-  bash -c '[ -e ~/.rvm/scripts/rvm ] && source ~/.rvm/scripts/rvm || source /usr/local/rvm/scripts/rvm; rvm "$@"; status=$?; env > "$0"; exit $status' $env_file $argv
-
-  # grep the rvm_* *PATH RUBY_* GEM_* variables from the captured environment
-  # exclude lines with _clr and _debug
-  # apply rvm_* *PATH RUBY_* GEM_* variables from the captured environment
-  and eval (grep '^rvm\|^[^=]*PATH\|^RUBY_\|^GEM_' $env_file |grep -v _clr |grep -v _debug| sed '/^[^=]*PATH/y/:/ /; s/^/set -xg /; s/=/ /; s/$/ ;/; s/(//; s/)//')
-
-  # clean up
-  rm -f $env_file
-
-end

plugins/rvm/rvm.load

-rvm current 1>/dev/null 2>&1
-
-function __check_rvm --on-variable PWD --description 'Setup rvm on directory change'
-  status --is-command-substitution; and return
-
-  if test "$rvm_project_rvmrc" != 0
-    set -l cwd $PWD
-    while true
-      if contains $cwd "" $HOME "/"
-        if test "$rvm_project_rvmrc_default" = 1
-          rvm default 1>/dev/null 2>&1
-        end
-        break
-      else
-        if begin ; test -s ".rvmrc" ; or test -s ".ruby-version" ; or test -s ".ruby-gemset" ; or test -s ".versions.conf" ; end
-          rvm reload 1> /dev/null 2>&1
-          rvm rvmrc load 1>/dev/null 2>&1
-          break
-        else
-          set cwd (dirname "$cwd")
-        end
-      end
-    end
-
-    set -e cwd
-  end
-end