vis-open

   1 #!/bin/sh
   2 set -e
   3
   4 # Later, we're going to want to set $IFS to a single newline, so let's prepare one.
   5 NL='
   6 '
   7
   8 VIS_MENU_PROMPT=""
   9 ALLOW_AUTO_SELECT=1
  10
  11 while [ $# -gt 0 ]; do
  12         case "$1" in
  13         -h|--help)
  14                 echo "usage: $(basename $0) [-h] [-p prompt] [-f] [--] [file-pattern]"
  15                 exit 0;
  16                 ;;
  17         -p)
  18                 VIS_MENU_PROMPT=$2
  19                 shift
  20                 shift
  21                 ;;
  22         -f)
  23                 ALLOW_AUTO_SELECT=""
  24                 shift
  25                 ;;
  26         --)
  27                 shift
  28                 break
  29                 ;;
  30         *)
  31                 break
  32                 ;;
  33         esac
  34 done
  35
  36 # At this point, all the remaining arguments should be the expansion of
  37 # any globs that were passed on the command line.
  38
  39 if [ $# -eq 1 -a "$ALLOW_AUTO_SELECT" = 1 ]; then
  40         # If there were globs on the command-line, they've expanded to
  41         # a single item, so we can just process it.
  42
  43         if [ -d "$1" ]; then
  44                 # Recurse and show the contents of the named directory,
  45                 # We pass -f to force the next iteration to present the
  46                 # full list, even if it's just an empty directory.
  47                 cd "$1"
  48                 IFS=$NL  # Don't split ls output on tabs or spaces.
  49                 exec "$0" -p "$VIS_MENU_PROMPT" -f .. $(ls -1)
  50         else
  51                 # We've found a single item, and it's not a directory,
  52                 # so it must be a filename (or file-like thing) to open,
  53                 # unless the parent directory does not exist.
  54                 if [ -d "$(dirname "$1")" ]; then
  55                         cd "$(dirname "$1")"
  56                         echo "$(pwd -P)"/"$(basename "$1" | sed 's/\*$//')"
  57                         exit 0
  58                 else
  59                         exit 1
  60                 fi
  61         fi
  62 fi
  63
  64 # At this point, we have a bunch of options we need to present to the
  65 # user so they can pick one.
  66 CHOICE=$(printf "%s\n" "$@" | vis-menu -b -p "$VIS_MENU_PROMPT")
  67
  68 # Did they pick a file or directory? Who knows, let's let the next iteration figure it out.
  69 exec "$0" -p "$VIS_MENU_PROMPT" -- "$CHOICE"