generate-cmdlist.sh

   1 #!/bin/sh
   2
   3 die () {
   4         echo "$@" >&2
   5         exit 1
   6 }
   7
   8 command_list () {
   9         while read cmd rest
  10         do
  11                 case "$cmd" in
  12                 "#"* | '')
  13                         # Ignore comments and allow empty lines
  14                         continue
  15                         ;;
  16                 *)
  17                         case "$exclude_programs" in
  18                         *":$cmd:"*)
  19                                 ;;
  20                         *)
  21                                 echo "$cmd $rest"
  22                                 ;;
  23                         esac
  24                 esac
  25         done <"$1"
  26 }
  27
  28 category_list () {
  29         echo "$1" |
  30         cut -d' ' -f2- |
  31         tr ' ' '\012' |
  32         grep -v '^$' |
  33         LC_ALL=C sort -u
  34 }
  35
  36 define_categories () {
  37         echo
  38         echo "/* Command categories */"
  39         bit=0
  40         echo "$1" |
  41         while read cat
  42         do
  43                 echo "#define CAT_$cat (1UL << $bit)"
  44                 bit=$(($bit+1))
  45         done
  46         test "$bit" -gt 32 && die "Urgh.. too many categories?"
  47 }
  48
  49 define_category_names () {
  50         echo
  51         echo "/* Category names */"
  52         echo "static const char *category_names[] = {"
  53         bit=0
  54         echo "$1" |
  55         while read cat
  56         do
  57                 echo "  \"$cat\", /* (1UL << $bit) */"
  58                 bit=$(($bit+1))
  59         done
  60         echo "  NULL"
  61         echo "};"
  62 }
  63
  64 print_command_list () {
  65         echo "static struct cmdname_help command_list[] = {"
  66
  67         echo "$1" |
  68         while read cmd rest
  69         do
  70                 synopsis=
  71                 while read line
  72                 do
  73                         case "$line" in
  74                         "$cmd - "*)
  75                                 synopsis=${line#$cmd - }
  76                                 break
  77                                 ;;
  78                         esac
  79                 done <"Documentation/$cmd.txt"
  80
  81                 printf '\t{ "%s", N_("%s"), 0' "$cmd" "$synopsis"
  82                 printf " | CAT_%s" $rest
  83                 echo " },"
  84         done
  85         echo "};"
  86 }
  87
  88 exclude_programs=:
  89 while test "--exclude-program" = "$1"
  90 do
  91         shift
  92         exclude_programs="$exclude_programs$1:"
  93         shift
  94 done
  95
  96 commands="$(command_list "$1")"
  97 categories="$(category_list "$commands")"
  98
  99 echo "/* Automatically generated by generate-cmdlist.sh */
 100 struct cmdname_help {
 101         const char *name;
 102         const char *help;
 103         uint32_t category;
 104 };
 105 "
 106 define_categories "$categories"
 107 echo
 108 define_category_names "$categories"
 109 echo
 110 print_command_list "$commands"