Dumb little script to find and ostensibly let someone list / recover vim swap files

recover-vim

#!/usr/bin/env bash
# vim: set tw=80 sw=2 ts=2 et :
# USAGE: recover-vim [-h|-help] [CMD...]
#
# See usage text below for more information.

case "$1" in
[-/]h|[-/]help|--help)
  cat <<'USAGE'
USAGE: recover-vim [-h|-help] [CMD...]

recover-vim performs a recursive search for .s[a-z][a-z] files and passes them
to the given CMD (all at once). By default, if no CMD is given, vim is invoked
for the swap file's original file to deal with the swap file (either to recover
or delete it, if either). If no files or found, it prints a message to stderr
and exits with status code 0.

If invoked with -h (or -help), it prints this usage text and exits with status
code 2. -help may also be passed with two hyphens (--help). Both -help and -h
may be passed with DOS-style /h or /help flags.

EXAMPLES

Open original files in vim:
> recover-vim

List original files that have swap files:
> recover-vim ls -1

Pretty-print a list of original files:
> recover-vim printf '* %s\n'

Print this usage text:
> recover-vim -h
USAGE
  exit 2
  ;;
esac

if [ $# -eq 0 ]; then
  set -- vim
fi

# Find things that look like vim swap files
files=(`
  find . -iname '.*.s[a-z][a-z]' |
  sed -e 's@/\.\(.*\)\.s[a-z][a-z]$@/\1@' |
  tr -s '\n' '\0' |
  xargs -0 bash -c 'printf "%q\n" "$@"' _
`)
# Ensure all the files exist -- prefix them with a dot if we've accidentally
# stripped the original file's dot (vim won't create a ..foo.swp)
found=()
for ((i=0; i < "${#files[@]}"; i++)); do
  f="${files[$i]}"
  fdot="$(dirname "$f")/.$(basename "$f")"
  if [ -f "$f" ]; then
    found["${#found[@]}"]="$f"
  elif [ -f "$fdot" ]; then
    found["${#found[@]}"]="$fdot"
  fi
done
unset files

if [ "${#found[@]}" -eq 0 ]; then
  if [ -t 1 ]; then
    echo "recover-vim: no swap files found" 1>&2
  fi
  exit 0
fi

exec "$@" "${found[@]}"