generate-cmdlist.sh

   1 #!/bin/sh
   2
   3 die () {
   4         echo "$@" >&2
   5         exit 1
   6 }
   7
   8 command_list () {
   9         grep -v '^#' "$1"
  10 }
  11
  12 get_categories () {
  13         tr ' ' '\n'|
  14         grep -v '^$' |
  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 print_command_list () {
  49         echo "static struct cmdname_help command_list[] = {"
  50
  51         command_list "$1" |
  52         while read cmd rest
  53         do
  54                 printf "        { \"$cmd\", $(get_synopsis $cmd), 0"
  55                 for cat in $(echo "$rest" | get_categories)
  56                 do
  57                         printf " | CAT_$cat"
  58                 done
  59                 echo " },"
  60         done
  61         echo "};"
  62 }
  63
  64 echo "/* Automatically generated by generate-cmdlist.sh */
  65 struct cmdname_help {
  66         const char *name;
  67         const char *help;
  68         uint32_t category;
  69 };
  70 "
  71 if test -z "$2"
  72 then
  73         define_categories "$1"
  74         echo
  75         print_command_list "$1"
  76         exit 0
  77 fi
  78
  79 echo "static const char *common_cmd_groups[] = {"
  80
  81 grps=grps$$.tmp
  82 match=match$$.tmp
  83 trap "rm -f '$grps' '$match'" 0 1 2 3 15
  84
  85 sed -n '
  86         1,/^### common groups/b
  87         /^### command list/q
  88         /^#/b
  89         /^[     ]*$/b
  90         h;s/^[^         ][^     ]*[     ][      ]*\(.*\)/       N_("\1"),/p
  91         g;s/^\([^       ][^     ]*\)[   ].*/\1/w '$grps'
  92         ' "$1"
  93 printf '};\n\n'
  94
  95 n=0
  96 substnum=
  97 while read grp
  98 do
  99         echo "^git-..*[         ]$grp"
 100         substnum="$substnum${substnum:+;}s/[    ]$grp/$n/"
 101         n=$(($n+1))
 102 done <"$grps" >"$match"
 103
 104 printf 'static struct cmdname_help common_cmds[] = {\n'
 105 grep -f "$match" "$1" |
 106 sed 's/^git-//' |
 107 sort |
 108 while read cmd tags
 109 do
 110         tag=$(echo "$tags" | sed "$substnum; s/[^0-9]//g")
 111         echo "  {\"$cmd\", $(get_synopsis git-$cmd), $tag},"
 112 done
 113 echo "};"