tmux_rbenv.md

Problem

RBenv not being detected inside tmux

# rbenv versions
  system
  1.8.7
  1.8.7-p358
  1.9.2
  1.9.2-p320
  1.9.3
  1.9.3-p327
  1.9.3-p392
* 1.9.3-p429 (set by /opt/boxen/rbenv/version)
  2.0.0
  2.0.0-p0
  2.0.0-p247
  2.1.1
  2.1.2

# ruby -v
ruby 2.0.0p451 (2014-02-24 revision 45167) [universal.x86_64-darwin13]

Checks

First possible problem was found on rbenv/rbenv#369 tried the solution proposed on rbenv/rbenv#369 (comment) for PATH being overriden, but didn't work

Second possible problem was found http://pgib.me/blog/2013/10/11/macosx-tmux-zsh-rbenv/ and it worked

Solution

Changed file /etc/zshenv

# system-wide environment settings for zsh(1)
if [ -x /usr/libexec/path_helper ]; then
  eval `/usr/libexec/path_helper -s`
fi

to

# system-wide environment settings for zsh(1)
if [ -x /usr/libexec/path_helper ]; then
  if [ -z "$TMUX" ]; then
    eval `/usr/libexec/path_helper -s`
  fi
fi

Honestly I didn't like this approach once it touchs system files, but didn't find any other solution to the problem.