RVM is not setting my PATH in `fish`, but should be

Question

I have been using RVM for a year and a half now.

Had the RVM PATH warning surface from every command invocation, but otherwise RVM was still functioning appropriately. I may have fixed that warning with instructions from this link: StackOverflow - Getting “Warning! PATH is not properly set up” when doing rvm use 2.0.0 --default This involved putting [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" into one of my bash-related shell configuration profiles.

Adding that one, or too many of those in the other available files in the call chain, may have lead to this weird (mostly?) aesthetic error: SuperUser - Why am I having / how can I fix this error: “shell_session_update: command not found”

Started getting the RVM PATH error again. I did not think this at the time, but looking back at the problem, I wonder if I had just updated my fish shell from around 2.2.0 to 2.5.0, which may be causing my further actual PATH errors (not warnings) as well...

Executing rvm reset did not help.

Executing rvm get stable --auto-dotfiles seemed to help a current terminal, but not others, even on restart. Decided to reinstall.

Ran rvm implode. Removed or commented out all of the RVM lines in all of my shell configuration files.

Ran through RVM - Integration - Fish Shell, which is also covered here for StackOVerflow - Can't get RVM to switch rubies, which involves doing some of RVM - Installing RVM - Quick (guided) Install first.

Used this combination: curl -sSL https://get.rvm.io | bash -s stable --rails --with-default-gems="rails haml" --with-gems="hirb".
Downloaded the rvm fish function.
Added rvm default config to config.fish.

Problem

My ruby executable is the wrong version:

⋊> ~ ruby -v
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]

It is the system ruby, and not the RVM-set version:

⋊> ~ which ruby
/usr/bin/ruby

I have no bundle command:

⋊> ~ which bundle
⋊> ~ bundle
fish: Unknown command 'bundle'
⋊> ~ functions bundle

Thus I cannot use Rails without bundle helping me to install the gem:

⋊> ~ rails
Rails is not currently installed on this system. To get the latest version, simply type:

    $ sudo gem install rails

You can then rerun your "rails" command.

My PATH and GEM_PATH variables do not seem to update, as can be seen below.

My question would be to ask how to get those variables to update? Something similar to this link: StackOverflow - RVM doesn't set correct gem path

More background

⋊> ~ which rails
/usr/bin/rails
⋊> ~ functions rails
⋊> ~ ⨯
⋊> ~ head /usr/bin/rails
#!/usr/bin/ruby
# Stub rails command to load rails from Gems or print an error if not installed.
require 'rubygems'

version = ">= 0"
if ARGV.first =~ /^_(.*)_$/ and Gem::Version.correct? $1 then
  version = $1
  ARGV.shift
end

⋊> ~ which rvm
⋊> ~ ⨯

⋊> ~ ls ~/.config/fish/functions/rvm.fish
/Users/username/.config/fish/functions/rvm.fish

⋊> ~ functions rvm|head
function rvm --description 'Ruby enVironment Manager'
  # run RVM and capture the resulting environment
  set --local env_file (mktemp -t rvm.fish.XXXXXXXXXX);
  # echo "DEBUG: env_file: $env_file"
  # This finds where RVM's root directory is and sources scripts/rvm from within it.  Then loads RVM in a clean environment and dumps the environment variables it generates out for us to use.
  bash -c 'PATH=$GEM_HOME/bin:$PATH;RVMA=$(which rvm);RVMB=$(whereis rvm | sed "s/rvm://");source $(if test $RVMA;then echo $RVMA | sed "s/\/bin\//\/scripts\//";elif test $RVMB; then echo $RVMB | sed "s/rvm/rvm\/scripts\/rvm/"; else echo ~/.rvm/scripts/rvm; fi); rvm "$@"; status=$?; env > "$0"; exit $status' $env_file $argv

  # apply rvm_* and *PATH variables from the captured environment
  and eval (grep -E '^rvm|^GEM_PATH|^GEM_HOME' $env_file | grep -v '_clr=' | sed '/^[^=]*PATH/s/:/" "/g; s/^/set -xg /; s/=/ "/; s/$/" ;/; s/(//; s/)//')
  # needed under fish >= 2.2.0

⋊> ~ bash -c 'which rvm'
⋊> ~ bash -c 'whereis rvm'
⋊> ~ bash -c 'echo ~/.rvm/scripts/rvm;'
/Users/username/.rvm/scripts/rvm
⋊> ~ head /Users/username/.rvm/scripts/rvm
#!/usr/bin/env bash

# rvm : Ruby enVironment Manager
# https://rvm.io
# https://github.com/rvm/rvm

# partial duplication marker dkjnkjvnckbjncvbkjnvkj
# prevent from loading in sh shells
if
  builtin test -n "${BASH_VERSION:-}" -o -n "${ZSH_VERSION:-}" -o -n "${KSH_VERSION:-}"

⋊> ~ rvm use
Using /Users/username/.rvm/gems/ruby-2.1.5 with gemset ux-rails3.2

⋊> ~ rvm list

rvm rubies

=* ruby-2.1.5 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

⋊> ~ ls /Users/username/.rvm/rubies/
default@  ruby-2.1.5/
⋊> ~ ls /Users/username/.rvm/rubies/ruby-2.1.5/
bin/  config  include/  lib/  share/

⋊> ~ rvm env
export PATH="/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2/bin:/Users/username/.rvm/gems/ruby-2.1.5@global/bin:/Users/username/.rvm/rubies/ruby-2.1.5/bin:$PATH"
export GEM_HOME='/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2'
export GEM_PATH='/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2:/Users/username/.rvm/gems/ruby-2.1.5@global'
export MY_RUBY_HOME='/Users/username/.rvm/rubies/ruby-2.1.5'
export IRBRC='/Users/username/.rvm/rubies/ruby-2.1.5/.irbrc'
unset MAGLEV_HOME
unset RBXOPT
export RUBY_VERSION='ruby-2.1.5'

⋊> ~ rvm env --path
/Users/username/.rvm/environments/ruby-2.1.5@ux-rails3.2
⋊> ~ cat /Users/username/.rvm/environments/ruby-2.1.5@ux-rails3.2
export PATH="/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2/bin:/Users/username/.rvm/gems/ruby-2.1.5@global/bin:/Users/username/.rvm/rubies/ruby-2.1.5/bin:$PATH"
export GEM_HOME='/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2'
export GEM_PATH='/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2:/Users/username/.rvm/gems/ruby-2.1.5@global'
export MY_RUBY_HOME='/Users/username/.rvm/rubies/ruby-2.1.5'
export IRBRC='/Users/username/.rvm/rubies/ruby-2.1.5/.irbrc'
unset MAGLEV_HOME
unset RBXOPT
export RUBY_VERSION='ruby-2.1.5'

⋊> ~ rvm 2.1.5 do rvm env --path
/Users/username/.rvm/environments/ruby-2.1.5
⋊> ~ cat /Users/username/.rvm/environments/ruby-2.1.5
export PATH="/Users/username/.rvm/gems/ruby-2.1.5/bin:/Users/username/.rvm/gems/ruby-2.1.5@global/bin:/Users/username/.rvm/rubies/ruby-2.1.5/bin:$PATH"
export GEM_HOME='/Users/username/.rvm/gems/ruby-2.1.5'
export GEM_PATH='/Users/username/.rvm/gems/ruby-2.1.5:/Users/username/.rvm/gems/ruby-2.1.5@global'
export MY_RUBY_HOME='/Users/username/.rvm/rubies/ruby-2.1.5'
export IRBRC='/Users/username/.rvm/rubies/ruby-2.1.5/.irbrc'
unset MAGLEV_HOME
unset RBXOPT
export RUBY_VERSION='ruby-2.1.5'

⋊> ~ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.0.14.1
  - RUBY VERSION: 2.0.0 (2015-12-16 patchlevel 648) [universal.x86_64-darwin16]
  - INSTALLATION DIRECTORY: /Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2
  - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-darwin-16
  - GEM PATHS:
     - /Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2
     - /Users/username/.rvm/gems/ruby-2.1.5@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/

⋊> ~ gem list
bigdecimal (1.2.0)
bundler (1.7.6)
bundler-unload (1.0.2)
executable-hooks (1.3.2)
gem-wrappers (1.2.7)
hirb (0.7.3)
io-console (0.4.2)
json (1.7.7)
minitest (4.3.2)
psych (2.0.0)
rake (0.9.6)
rdoc (4.0.0)
rubygems-bundler (1.4.4)
rvm (1.11.3.9)
test-unit (2.0.0.0)

⋊> ~ rvm gemset list

gemsets for ruby-2.1.5 (found in /Users/username/.rvm/gems/ruby-2.1.5)
   (default)
   global
=> ux-rails3.2

⋊> ~ rvm gemset dir
/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2

⋊> ~ ls /Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2/
bin
cache
environment
wrappers

⋊> ~ ls /Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2/bin/
⋊> ~

⋊> ~ ls /Users/username/.rvm/gems/ruby-2.1.5@global/bin/
bundle
bundler
executable-hooks-uninstaller
ruby_executable_hooks

⋊> ~ ls /Users/username/.rvm/gems/ruby-2.1.5/bin/
haml
ruby_executable_hooks
tilt

⋊> ~ echo $PATH
/usr/local/mysql/bin /usr/local/opt/coreutils/libexec/gnubin /usr/local/opt/findutils/bin /Users/username/bin /usr/local/mysql/bin /usr/local/opt/coreutils/libexec/gnubin /usr/local/opt/findutils/bin /Users/username/bin /usr/local/bin /usr/bin /bin /usr/sbin /sbin /usr/local/munki /opt/puppetlabs/bin /Applications/Wireshark.app/Contents/MacOS

⋊> ~ echo $GEM_PATH
/Users/username/.rvm/gems/ruby-2.1.5@ux-rails3.2:/Users/username/.rvm/gems/ruby-2.1.5@global

⋊> ~ cat .ruby-gemset .ruby-version
ux-rails3.2
ruby-2.1.5

⋊> ~ grep "rvm" .config/fish/config.fish  .bashrc .bash_profile .profile .zshrc .mkshrc .zlogin /etc/profile /etc/bashrc
.config/fish/config.fish:# Source: http://stackoverflow.com/questions/18276701/getting-warning-path-is-not-properly-set-up-when-doing-rvm-use-2-0-0-defaul
.config/fish/config.fish:rvm default;
.bashrc:# From running the command 'rvm get head ...'.  Needs to be at the bottom, so no other PATH entries can change the order.
.bashrc:# Source: http://stackoverflow.com/questions/18276701/getting-warning-path-is-not-properly-set-up-when-doing-rvm-use-2-0-0-defaul
.bashrc:# export PATH="$PATH:$HOME/.rvm/bin"
.bash_profile:# [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
.profile:# export PATH="$PATH:$HOME/.rvm/bin"
.profile:# [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
grep: .zshrc: No such file or directory
grep: .mkshrc: No such file or directory
grep: .zlogin: No such file or directory

⋊> ~ ls .gemrc
ls: cannot access '.gemrc': No such file or directory

⋊> ~ rvm -v; ruby -v; rails -v; echo "gem version "(gem -v); rake -V; bundle -v;
rvm 1.29.1 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io/]
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]
Rails is not currently installed on this system. To get the latest version, simply type:

    $ sudo gem install rails

You can then rerun your "rails" command.
gem version 2.0.14.1
rake, version 0.9.6
fish: Unknown command 'bundle'

Mac 10.12.3

iTerm2 3.0.15

fish, version 2.5.0

Other stuff

More related to bash, but may still apply since the fish rvm function uses bash inside: StackOVerflow - Need to Fix PATH in my bashrc File for RVM
Simplistic approach, but I need the RVM dynamic feature working: StackOverflow - How to set up path for gems with the Fish shell?

Pysis · Accepted Answer

Some kind of solution

So far I have it barely working by making the change from:

grep -E '^rvm|^GEM_PATH|^GEM_HOME'

to:

grep -E '^rvm|^[^=]*PATH|^GEM_HOME'

Not sure what side effects that will cause, but from looking at the rvm.fish code, that would seem to be missing.

Related aside

An older version had the ^[^=]*PATH\ term in it, like my system's previous version, and can also be randomly found here: GitHub Gist - ToniRib/rvm.fish That is for escaping the pipe (|) characters, but I can't see why that is needed inside of single quotes. My fix works specifically without the backslashes, and just plain pipe characters.

Non-functional alternative

I have alternatively tried a patch without the other code such as this one:

and set -xg GEM_PATH (echo $GEM_PATH | sed 's/ /:/g')
and set -xg PATH (echo $GEM_PATH | sed 's/:/ /g') $MY_RUBY_HOME/bin $PATH

I am continuing to add lines to it, but still see various errors. First I needed the "rubies" directory for the correct version of ruby, then both gem paths modified with spaces for fish, and still I am having issues, so taking bash's PATH environment variable wholesale and letting the rvm script do its own work is the best I have so far.