Fish subshell pwd passing to mc is broken on Debian (with patch)

[chown]

Fish subshell pwd passing doesn't work on Debian Wheezy when under $HOME since the default fish setup on Wheezy has a pwd function that compresses $HOME to ~.

Version: master, commit aa6ad48

Steps to reproduce:

• start fish shell & make mc use it as a subshell

  fish
  set SHELL (which fish)
  

• start mc from $HOME

  cd ~
  mc
  

• go to subshell

• if not on Wheezy, simulate the pwd implementation (has to be done in subshell on Ubuntu)

  function pwd
      echo $PWD | sed -e "s|^$HOME|~|"
  end
  

• change to some sub-dir

  cd some_dir
  

• return from subshell

Expected behaviour:

• return to mc with current panel in ~/some_dir

Actual behaviour:

• warning message appears "The commander can't change to the directory that the subshell claims you are in..."
• returns to mc with current panel still in ~

Instead of calling pwd (which can be a function), it is safer to use the $PWD variable since it is read-only and not manipulated. Attached is a patch with the change to echo $PWD.

Tested on Debian 7 with fish 1.23.1 and Ubuntu 14.04 with fish 2.0.0

[andrew_b]

Branch: 3237_fish_pwd
changeset:cd737f8956f8d8915063cd38923b4c0fcb5d5be8

[andrew_b]

Merged to master: [cd737f8956f8d8915063cd38923b4c0fcb5d5be8].