iankelling.org Git - automated-distro-installer/blob - fai/config/class/40-parse-profiles.sh

   1 #! /bin/bash
   2
   3 # parse *.profile and build a curses menu, so the user can select a profile
   4 #
   5 # (c) 2015 by Thomas Lange, lange@informatik.uni-koeln.de
   6 # Universitaet zu Koeln
   7
   8 if [ X$FAI_ACTION = Xinstall -o X$FAI_ACTION = Xdirinstall -o X$FAI_ACTION = X ]; then
   9     :
  10 else
  11     return 0
  12 fi
  13
  14 [ "$flag_menu" ] || return 0
  15
  16 out=$(tty)
  17 tempfile=$(mktemp)
  18 tempfile2=$(mktemp)
  19 trap "rm -f $tempfile $tempfile2" EXIT INT QUIT
  20
  21 # declare the data structure, use associative arrays
  22 declare -A arshort
  23 declare -A ardesc
  24 declare -A arlong
  25 declare -A arclasses
  26 declare -a list
  27
  28
  29 parse_profile() {
  30
  31     # read a profile and add all info to the data structure
  32
  33     local short
  34     local long
  35     local desc
  36     local name
  37     local classes
  38     local lflag=0
  39
  40     # disable word splitting when reading a line, this helps reading a keyword without a value
  41     local OIF=$IFS
  42     IFS=
  43
  44     while read -r line || [[ -n $line ]]; do
  45
  46         if [[ $line =~ "Name: " ]]; then
  47             if [ -n "$long" ]; then
  48                 arlong[$name]="$long"
  49             fi
  50             short=
  51             desc=
  52             long=
  53             classes=
  54             lflag=0
  55             name=${line##Name: }
  56             [ $debug ] && echo "XX NAME $name found"
  57             list+=("$name")  # add new item to list
  58             continue
  59         fi
  60
  61         if [[ $line =~ "Description: " ]]; then
  62             lflag=0
  63             desc=${line##Description: }
  64             [ $debug ] && echo "XX $desc found"
  65             ardesc[$name]="$desc"
  66             continue
  67         fi
  68
  69         if [[ $line =~ "Short: " ]]; then
  70             lflag=0
  71             short=${line##Short: }
  72             [ $debug ] && echo "XX $short found"
  73             arshort[$name]="$short"
  74             continue
  75         fi
  76
  77         if [[ $line =~ "Classes: " ]]; then
  78             lflag=0
  79             classes=${line##Classes: }
  80             [ $debug ] && echo "XX classes found"
  81             arclasses[$name]="$classes"
  82             continue
  83         fi
  84
  85         if [[ $line =~ "Long: " ]]; then
  86             lflag=1
  87             long=${line##Long: }
  88             [ $debug ] && echo "XX long found"
  89
  90         # else it's another long line
  91         elif [ $lflag -eq 1 ]; then
  92             long+="\n$line"
  93         fi
  94
  95         if [[ $line =~ "Default: " ]]; then
  96             lflag=0
  97             default=${line##Default: }
  98             continue
  99         fi
 100
 101     done < $1
 102
 103     if [ -n "$long" ]; then
 104         arlong[$name]="$long"
 105     fi
 106     IFS=$OIF
 107 }
 108
 109 prtresult() {
 110
 111     # set newclasses which is used by fai-class(1)
 112     local res=$(<$tempfile)
 113     echo "$BASH_SOURCE defined new classes: ${arclasses[$res]}"
 114     newclasses="${arclasses[$res]}"
 115 }
 116
 117
 118 # read all files with name matching *.profile
 119 _parsed=0
 120 shopt -s nullglob
 121 for _f in *.profile; do
 122     parse_profile $_f
 123     _parsed=1
 124 done
 125 unset _f
 126
 127 # do nothing if no profile was read
 128 if [ $_parsed -eq 0 ]; then
 129     unset _parsed
 130     return 0
 131 fi
 132
 133 # create the argument list containing the menu entries
 134 # and the help text file
 135 for i in "${list[@]}"; do
 136     par+=("$i")
 137     par+=("${ardesc[${i}]}")
 138     par+=("${arshort[${i}]}")
 139     echo "Name: ${i}" >> $tempfile2
 140     echo -e ${arlong[${i}]} >> $tempfile2
 141     echo -e "Classes: " ${arclasses[${i}]} "\n" >> $tempfile2
 142 done
 143 unset i
 144
 145 while true; do
 146
 147     dialog --clear --item-help --title "FAI - Fully Automatic Installation" --help-button \
 148         --default-item "$default" \
 149         --menu "\nSelect your FAI profile\n\nThe profile will define a list of classes,\nwhich are used by FAI.\n\n\n"\
 150         15 70 0 "${par[@]}" 2> $tempfile  1> $out
 151
 152     _retval=$?
 153     case $_retval in
 154         0)
 155             prtresult
 156             break ;;
 157         1)
 158             echo "No profile selected."
 159             break ;;
 160         2)
 161             dialog --title "Description of all profiles" --textbox $tempfile2 0 0 1> $out;;
 162     esac
 163
 164 done
 165 unset par ardesc arshort arlong arclasses list tempfile tempfile2 _parsed _retval line