xdg-ninja.sh

   1 #!/bin/bash
   2
   3 USE_GLOW=true
   4 if ! command -v glow &> /dev/null
   5 then
   6     echo "Glow not found, markdown rendering not available."
   7     USE_GLOW=false
   8 fi
   9
  10 unalias -a
  11
  12 ERR=0
  13 WARN=1
  14 INFO=2
  15 SUCS=3
  16 HELP=4
  17
  18 # Function to expand enviornment variables in string
  19 # https://stackoverflow.com/a/20316582/11110290
  20 apply_shell_expansion() {
  21     declare data="$1"
  22     declare delimiter="__apply_shell_expansion_delimiter__"
  23     declare command="cat <<$delimiter"$'\n'"$data"$'\n'"$delimiter"
  24     eval "$command"
  25 }
  26
  27 # Returns 0 if the path doesn't lead anywhere
  28 # Return 1 if the path points to a file, 2 if it points to a directory
  29 check_not_exists_file() {
  30     FILE_PATH=$(apply_shell_expansion "$1")
  31     if [ -f "$FILE_PATH" ]; then
  32         return 1
  33     elif [ -d "$FILE_PATH" ]; then
  34         return 2
  35     else
  36         return 0
  37     fi
  38 }
  39
  40
  41 # Function to handle the formatting of output
  42 log() {
  43     MODE="$1"
  44     NAME="$2"
  45     FILENAME="$3"
  46     HELP="$4"
  47
  48     case "$MODE" in
  49
  50         ERR)
  51             printf "[\e[1;31m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
  52             ;;
  53
  54         WARN)
  55             printf "[\e[1;33m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
  56             ;;
  57
  58         INFO)
  59             printf "[\e[1;36m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
  60             ;;
  61
  62         SUCS)
  63             printf "[\e[1;32m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
  64             ;;
  65
  66         HELP)
  67             if $USE_GLOW; then
  68                 echo "$HELP" | glow -
  69             else
  70                 echo "$HELP"
  71             fi
  72             ;;
  73
  74     esac
  75 }
  76
  77 # Checks that the given file does not exist, otherwise outputs help
  78 check_file() {
  79     INPUT="$1"
  80     NAME="$2"
  81
  82     FILENAME=$(echo -E "$INPUT" | jq -r .path)
  83     MOVABLE=$(echo -E "$INPUT" | jq -r .movable)
  84     HELP=$(echo -E "$INPUT" | jq -r .help)
  85
  86     check_not_exists_file "$FILENAME"
  87
  88     case $? in
  89
  90         0)
  91             log SUCS "$NAME" "$FILENAME" "$HELP"
  92             ;;
  93
  94         1 | 2)
  95             if "$MOVABLE"; then
  96                 log ERR "$NAME" "$FILENAME" "$HELP"
  97             else
  98                 log WARN "$NAME" "$FILENAME" "$HELP"
  99             fi
 100             if ! [ -z "$HELP" ]; then
 101                 log HELP "$NAME" "$FILENAME" "$HELP"
 102             else
 103                 log HELP "$NAME" "$FILENAME" "_No help available._"
 104             fi
 105             ;;
 106
 107     esac
 108 }
 109
 110 # Reads a file from programs/, calls check_file on each file specified for the program
 111 check_program() {
 112     INPUT=$1
 113
 114     NAME=$(echo "$INPUT" | jq -r .name)
 115
 116
 117     while IFS= read -r file; do
 118         check_file "$file" "$NAME"
 119     done <<< "$(echo "$INPUT" | jq -rc '.files[]')"
 120 }
 121
 122 # Loops over all files in the programs/ directory and calls check_program
 123 enumerate_programs() {
 124     for prog_filename in ./programs/*; do
 125         check_program "$(cat $prog_filename)"
 126     done
 127 }
 128
 129 enumerate_programs