command_util.sh

   1 #!/bin/bash
   2
   3
   4 read_header()
   5 {
   6         local key value i
   7
   8         while read key value; do
   9                 case "$key" in
  10                 ---)
  11                         break
  12                         ;;
  13                 HC:)
  14                         header_comment="$value"
  15                         ;;
  16                 CC:)
  17                         c_file_comment="$value"
  18                         ;;
  19                 OF:)
  20                         output_file="$value"
  21                         array_name=${value%command_list}cmds
  22                         ;;
  23                 SF:)
  24                         source_files="$value"
  25                         ;;
  26                 AT:)
  27                         array_type="$value"
  28                         ;;
  29                 IN:)
  30                         for i in $value; do
  31                                 includes="$includes
  32 #include \"$i.h\""
  33                         done
  34                         includes="$includes
  35 #include \"$output_file.h\""
  36                         ;;
  37                 SN:)
  38                         section_name="$value"
  39                         ;;
  40                 TM:)
  41                         template_members="$value"
  42                 esac
  43         done
  44         if test -z "$header_comment" -o -z "$c_file_comment" \
  45                         -o -z "$output_file"; then
  46                 echo "header error" 1&>2
  47                 exit 1
  48         fi
  49 }
  50
  51 read_one_command()
  52 {
  53         local line
  54
  55         name_txt=""
  56         desc_txt=""
  57         usage_txt=""
  58         help_txt=""
  59         perms_txt=""
  60         line_handler=0
  61         template=0
  62         template_name=""
  63         template_prototype=""
  64         mkdir -p man/man1
  65         while read key value; do
  66                 case "$key" in
  67                 ---)
  68                         break
  69                         ;;
  70                 N:)
  71                         name_txt="$value"
  72                         ;;
  73                 T:)
  74                         template_name="$value"
  75                         template=1
  76                         ;;
  77                 O:)
  78                         template_prototype="$value"
  79                         template=1
  80                         ;;
  81                 P:)
  82                         perms_txt="$value"
  83                         ;;
  84                 D:)
  85                         desc_txt="$value"
  86                         ;;
  87                 L:)
  88                         line_handler=1
  89                         ;;
  90                 U:)
  91                         usage_txt="$value"
  92                         ;;
  93                 H:)
  94                         help_txt="${value}"
  95                         while read line; do
  96                                 if test "$line" = "---"; then
  97                                         break;
  98                                 fi
  99                                 line=${line#H:}
 100                                 help_txt="$help_txt
 101 ${line# }"
 102                         done
 103                         break
 104                         ;;
 105                 esac
 106         done
 107         if test $template -eq 0; then
 108                 if test -n "$name_txt" -a -n "$desc_txt" -a -n "$usage_txt" \
 109                                 -a -n "$help_txt"; then
 110                         ret=1
 111                         return
 112                 fi
 113         else
 114                 if test -n "$template_name" -a -n "$template_prototype" \
 115                                 -a -n "$name_txt " -a -n "$template_members" \
 116                                 -a -n "$desc_txt" -a -n "$usage_txt" \
 117                                 -a -n "$help_txt"; then
 118                         ret=1
 119                         return
 120                 fi
 121         fi
 122         if test -z "$name_txt" -a -z "$desc_txt" -a -z "$usage_txt" \
 123                         -a -z "$help_txt"; then
 124                 ret=0
 125                 return
 126         fi
 127         ret=-1
 128         #return
 129         echo "!ERROR!"
 130         echo "N: $name_txt"
 131         echo "D: $desc_txt"
 132         echo "S: $usage_txt"
 133         echo "P: $perms_txt"
 134         echo "H: $help_txt"
 135         echo "O: $template_prototype"
 136 }
 137
 138 dump_man()
 139 {
 140         echo ".SS \"$name_txt\""
 141         echo "$desc_txt"
 142         echo
 143         echo "\\fBusage: \\fP$usage_txt"
 144         echo
 145         echo "$help_txt"
 146         echo
 147         if test -n "$perms_txt"; then
 148                 echo -n "\\fBpermissions:\\fP "
 149                 if test "$perms_txt" = "0"; then
 150                         echo "(none)"
 151                 else
 152                         echo "$perms_txt"
 153                 fi
 154         fi
 155         echo
 156 }
 157
 158
 159 com_man()
 160 {
 161         echo "[$section_name]"
 162         echo
 163         while : ; do
 164                 read_one_command
 165                 if test $ret -lt 0; then
 166                         exit 1
 167                 fi
 168                 if test $ret -eq 0; then
 169                         break
 170                 fi
 171                 dump_man
 172         done
 173 }
 174
 175 dump_proto()
 176 {
 177         local source_file match=""
 178
 179         echo '/**'
 180         echo " * $desc_txt"
 181         echo ' *'
 182         echo ' * \param fd The file descriptor to send output to.'
 183         if test $line_handler -eq 0; then
 184                 echo ' * \param argc The number of arguments.'
 185                 echo ' * \param argv The argument vector.'
 186         else
 187                 echo ' * \param cmdline The full command line.'
 188         fi
 189         echo ' * '
 190         echo " * Usage: $usage_txt"
 191         echo ' * '
 192         echo "$help_txt" | sed -e 's/^/ * /g'
 193         echo ' */'
 194         if test -n "$prototype"; then
 195                 echo "$prototype"
 196                 echo
 197                 return
 198         fi
 199         for source_file in $source_files; do
 200                 match=$(grep "^\(__noreturn \)*int com_$name_txt(" $source_file | head -n 1 | sed -e 's/$/;/1')
 201                 if test -n "$match"; then
 202                         echo "$match"
 203                         break
 204                 fi
 205         done
 206         echo
 207 }
 208
 209 dump_array_member()
 210 {
 211         echo '{'
 212         echo ".name = \"$name_txt\","
 213         if test $line_handler -eq 0; then
 214                 echo ".handler = com_$name_txt,"
 215         else
 216                 echo ".handler = NULL,"
 217                 echo ".line_handler = com_$name_txt,"
 218         fi
 219         if test -n "$perms_txt"; then
 220                 echo ".perms = $perms_txt,"
 221         fi
 222         echo ".description = \"$desc_txt\","
 223         echo ".usage = \"$usage_txt\","
 224         echo ".help = "
 225         echo "$help_txt" | sed -e 's/^/\"/g' -e 's/$/\\n\"/g'
 226         echo '},'
 227 }
 228
 229
 230 template_loop()
 231 {
 232         local t_name="$name_txt"
 233         local t_perms="$perms_txt"
 234         local t_desc="$desc_txt"
 235         local t_usage="$usage_txt"
 236         local t_help="$help_txt"
 237         local t_source_files="$source_files"
 238         local member
 239         for member in $template_members; do
 240                 local sed_cmd="sed -e s/@member@/$member/g"
 241                 #echo "sed_cmd: $sed_cmd"
 242                 name_txt=$(echo $t_name | $sed_cmd)
 243                 #name_txt="$tname"
 244                 perms_txt=$(echo $t_perms | $sed_cmd)
 245                 desc_txt=$(echo $t_desc | $sed_cmd)
 246                 usage_txt=$(echo $t_usage | $sed_cmd)
 247                 help_txt=$(echo $t_help | $sed_cmd)
 248                 prototype=$(echo "$template_prototype" | $sed_cmd)
 249                 $1
 250         done
 251
 252 }
 253
 254 com_c_file()
 255 {
 256         echo "/** \file $output_file.c $c_file_comment */"
 257         echo "$includes"
 258         echo "struct $array_type $array_name[] = {"
 259         while : ; do
 260                 read_one_command
 261                 if test $ret -lt 0; then
 262                         exit 1
 263                 fi
 264                 if test $ret -eq 0; then
 265                         break
 266                 fi
 267                 if test $template -eq 0; then
 268                         dump_array_member
 269                         continue
 270                 fi
 271                 template_loop dump_array_member
 272         done
 273         echo '{.name = NULL}};'
 274 }
 275
 276 com_header()
 277 {
 278         echo "/** \file $output_file.h $header_comment */"
 279         echo
 280         echo "extern struct $array_type $array_name[];"
 281         while : ; do
 282                 read_one_command
 283                 if test $ret -lt 0; then
 284                         exit 1
 285                 fi
 286                 if test $ret -eq 0; then
 287                         break
 288                 fi
 289                 if test $template -eq 0; then
 290                         dump_proto
 291                         continue
 292                 fi
 293                 template_loop dump_proto
 294         done
 295 }
 296
 297 read_header
 298 arg="$1"
 299 shift
 300 case "$arg" in
 301         "c")
 302                 com_c_file
 303                 ;;
 304         "h")
 305                 com_header
 306                 ;;
 307         "man")
 308                 com_man $*
 309                 ;;
 310 esac