sedmv

gistfile1.fish

function sedmv
	
  set ls_flags "-1"
  set perform_changes yes
  
  # the last arg is the pattern. save it, remove it, process flags
  set pattern $argv[-1]
  set -e argv[-1]
  
  if test $pattern = ""
    set_color red
    echo "Pattern must not be empty!"
    return 127
  end
  
  if begin 
      contains -- -a $argv
      or contains -- --all-files $argv
     end 
    set ls_flags {$ls_flags}A
  end
  
  if begin
      contains -- -n $argv
      or contains -- --noop $argv
     end
    set perform_changes no
  end
  
  for f in (ls $ls_flags)
    set mvto (echo $f | gsed -r $pattern)
    
    if test "$mvto" = "$f"
      set_color red
      printf "[✗] "
      set_color normal
      echo $f
    else
      set_color green
      printf "[✓] "
      set_color normal
      echo $f
      set_color green
      printf " -> "
      set_color normal
      echo $mvto
      
      if test "$perform_changes" = yes
        mv $f $mvto
      end
    end
  end
  
end