plugins/.nnn-plugin-helper

   1 #!/usr/bin/env sh
   2
   3 # Description: Helper script for plugins
   4 #
   5 # Shell: POSIX compliant
   6 # Author: Anna Arad
   7
   8 selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}
   9 export selection
  10
  11 ## Set CUR_CTX to 1 to open directory in current context
  12 CUR_CTX=0
  13 export CUR_CTX
  14
  15 NNN_PREFER_SELECTION="${NNN_PREFER_SELECTION:-0}"
  16 export NNN_PREFER_SELECTION
  17
  18 ## Ask nnn to switch to directory $1 in context $2.
  19 ## If $2 is not provided, the function asks explicitly.
  20 nnn_cd () {
  21     dir="$1"
  22
  23     if [ -z "$NNN_PIPE" ]; then
  24         echo "No pipe file found" 1>&2
  25         return
  26     fi
  27
  28     if [ -n "$2" ]; then
  29         context=$2
  30     elif [ $CUR_CTX -ne 1 ]; then
  31         printf "Choose context 1-4 (blank for current): "
  32         read -r context
  33     fi
  34
  35     printf "%s" "${context:-0}c$dir" > "$NNN_PIPE"
  36 }
  37
  38 cmd_exists () {
  39     type "$1" > /dev/null 2>&1
  40     echo $?
  41 }
  42
  43 nnn_use_selection() {
  44     if ! [ -s "$selection" ]; then
  45         return 1
  46     fi
  47
  48     if [ "$NNN_PREFER_SELECTION" -eq 1 ]; then
  49         return 0
  50     else
  51         [ -n "$1" ] && printf "%s " "$1"
  52         printf "(s)election/(c)urrent? [default=c] "
  53         read -r resp__
  54
  55         if [ "$resp__" = "s" ]; then
  56             return 0
  57         else
  58             return 1
  59         fi
  60     fi
  61 }