Fzf: Accessing shell functions inside preview window

[Bmsandoval]

• Category
  
  
  
  • [ x] fzf binary
  
  
  • [ ] fzf-tmux script
  
  
  • [ ] Key bindings
  
  
  • [ ] Completion
  
  
  • [ ] Vim
  
  
  • [ ] Neovim
  
  
  • [ ] Etc.
  
  
• OS
  
  
  
  • [x ] Linux
  
  
  • [ ] Mac OS X
  
  
  • [ ] Windows
  
  
  • [ ] Windows Subsystem for Linux
  
  
  • [ ] Etc.
  
  
• Shell
  
  
  
  • [ x] bash
  
  
  • [ ] zsh
  
  
  • [ ] fish
  
  

Admittedly the usecase is minimal... but "--preview 'declare -f {}'" gives undesired results if it is passed a bash function that is not in the bashrc (even if the bashrc sources the other file). It seems to be because fzf runs these in a non-login shell. This would be convenient for editing bash functions by allowing you to search for all your bash functions and then display the bash code in the preview window.

[junegunn]

Bash functions are not visible to child processes if you don't explicitly export them.

> foo() { echo foo; }
> declare -f foo
foo ()
{
    echo foo
}
> bash -c 'declare -f foo'
> export -f foo
> bash -c 'declare -f foo'
foo ()
{
    echo foo
}

[junegunn]

Or you can load your configuration files in preview command

fzf --preview 'source ~/.bashrc; declare -f {}'