Provide elvish functions for cd_on_quit feature

[lvm-1896]

Support cd_on_quit for elvish shell users

Why support only fish and bash shell users ...

[lvm-1896]

I recently swichted my default login shell to elvish and I am missing the functionality. I have implemented a small elvish module for that:

var spf-last-dir = ~/.local/state/superfile/lastdir

use str

fn spf {|@args|
  e:spf $@args
  if ?(test -f $spf-last-dir) {
    var dir = (str:trim-prefix (read-line < ~/.local/state/superfile/lastdir) 'cd ')
    set dir = (str:trim $dir '''')
    if ?(cd $dir) {
      echo You are now in (styled $pwd magenta).
    }
    rm -f -- $spf-last-dir
  }
}

[lvm-1896]

I tried to avoid eval ...

Is there anything I can help with?

The script should be manually placed in ~/.config/elvish/lib/superfile.elv and imported into elvish's readline namespace in ~/.config/elvish/rc.elv:

use superfile
edit:add-var spf~ $superfile:spf~

If the script is provided via a github repo users will be able to use the epm package manager.

[lazysegtree]

Thanks for this @lvm-1896 . I would be testing this. and then we can add it to cd on quit scripts.
Actually we are trying re design the cd_on_quit to make it cross compatible on all shells, with lesser code.
See

• Make cd_on_quit more cross platform and more clean. #706