If git stash worked anywhere, but only on one file per directory...

stash

#! /usr/bin/env zsh

# aspires to be git stash, everywhere (temporarily hide and unhide files/dirs)
# achieves less: hides a single file or directory by prefixing it with ".stashed-"
#  (i.e., will not stash multiple files in the same dir at once)

if [[ -z "$1" ]]; then
  echo "Need either a path or 'pop' as an argument"
  exit 1
fi

stashed=$(ls -a | grep "\.stashed-")

if [[ "$1" == "pop" ]]; then
  # nb this means you can't stash files named 'pop'
  if [[ -z "$stashed" ]]; then
    echo "stash: nothing to pop";
    exit 1
  fi
  mv $stashed $(echo $stashed | sed 's/.stashed-//')
  exit
fi

if [[ ! -z "$stashed" ]]; then
  echo "Cannot stash another file"
  exit 1
fi

mv "$1" "./.stashed-$1"