generate-cmdlist.sh

   1 #!/bin/sh
   2
   3 die () {
   4         echo "$@" >&2
   5         exit 1
   6 }
   7
   8 command_list () {
   9         eval "grep -ve '^#' $exclude_programs" <"$1"
  10 }
  11
  12 get_categories () {
  13         tr ' ' '\n'|
  14         grep -v '^$' |
  15         sort |
  16         uniq
  17 }
  18
  19 category_list () {
  20         command_list "$1" |
  21         cut -c 40- |
  22         get_categories
  23 }
  24
  25 get_synopsis () {
  26         sed -n '
  27                 /^NAME/,/'"$1"'/H
  28                 ${
  29                         x
  30                         s/.*'"$1"' - \(.*\)/N_("\1")/
  31                         p
  32                 }' "Documentation/$1.txt"
  33 }
  34
  35 define_categories () {
  36         echo
  37         echo "/* Command categories */"
  38         bit=0
  39         category_list "$1" |
  40         while read cat
  41         do
  42                 echo "#define CAT_$cat (1UL << $bit)"
  43                 bit=$(($bit+1))
  44         done
  45         test "$bit" -gt 32 && die "Urgh.. too many categories?"
  46 }
  47
  48 define_category_names () {
  49         echo
  50         echo "/* Category names */"
  51         echo "static const char *category_names[] = {"
  52         bit=0
  53         category_list "$1" |
  54         while read cat
  55         do
  56                 echo "  \"$cat\", /* (1UL << $bit) */"
  57                 bit=$(($bit+1))
  58         done
  59         echo "  NULL"
  60         echo "};"
  61 }
  62
  63 print_command_list () {
  64         echo "static struct cmdname_help command_list[] = {"
  65
  66         command_list "$1" |
  67         while read cmd rest
  68         do
  69                 printf "        { \"$cmd\", $(get_synopsis $cmd), 0"
  70                 for cat in $(echo "$rest" | get_categories)
  71                 do
  72                         printf " | CAT_$cat"
  73                 done
  74                 echo " },"
  75         done
  76         echo "};"
  77 }
  78
  79 exclude_programs=
  80 while test "--exclude-program" = "$1"
  81 do
  82         shift
  83         exclude_programs="$exclude_programs -e \"^$1 \""
  84         shift
  85 done
  86
  87 echo "/* Automatically generated by generate-cmdlist.sh */
  88 struct cmdname_help {
  89         const char *name;
  90         const char *help;
  91         uint32_t category;
  92 };
  93 "
  94 define_categories "$1"
  95 echo
  96 define_category_names "$1"
  97 echo
  98 print_command_list "$1"