command_util.sh

   1 #!/usr/bin/env 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                 SI:)
  30                         for i in $value; do
  31                                 system_includes="$system_includes
  32 #include <$i.h>"
  33                         done
  34                         ;;
  35                 IN:)
  36                         for i in $value; do
  37                                 includes="$includes
  38 #include \"$i.h\""
  39                         done
  40                         includes="$includes
  41 #include \"$output_file.h\""
  42                         ;;
  43                 SN:)
  44                         section_name="$value"
  45                         ;;
  46                 TM:)
  47                         template_members="$value"
  48                 esac
  49         done
  50         if test -z "$header_comment" -o -z "$c_file_comment" \
  51                         -o -z "$output_file"; then
  52                 echo "header error" 1&>2
  53                 exit 1
  54         fi
  55 }
  56
  57 read_one_command()
  58 {
  59         local line
  60
  61         name_txt=""
  62         desc_txt=""
  63         usage_txt=""
  64         help_txt=""
  65         perms_txt=""
  66         template=0
  67         template_name=""
  68         template_prototype=""
  69         mkdir -p man/man1
  70         while read key value; do
  71                 case "$key" in
  72                 ---)
  73                         break
  74                         ;;
  75                 N:)
  76                         name_txt="$value"
  77                         ;;
  78                 T:)
  79                         template_name="$value"
  80                         template=1
  81                         ;;
  82                 O:)
  83                         template_prototype="$value"
  84                         template=1
  85                         ;;
  86                 P:)
  87                         perms_txt="$value"
  88                         ;;
  89                 D:)
  90                         desc_txt="$value"
  91                         ;;
  92                 U:)
  93                         usage_txt="$value"
  94                         ;;
  95                 H:)
  96                         help_txt="${value}"
  97                         while read line; do
  98                                 if test "$line" = "---"; then
  99                                         break;
 100                                 fi
 101                                 line=${line#H:}
 102                                 help_txt="$help_txt
 103 ${line# }"
 104                         done
 105                         break
 106                         ;;
 107                 esac
 108         done
 109         if test $template -eq 0; then
 110                 if test -n "$name_txt" -a -n "$desc_txt" -a -n "$usage_txt" \
 111                                 -a -n "$help_txt"; then
 112                         ret=1
 113                         return
 114                 fi
 115         else
 116                 if test -n "$template_name" -a -n "$template_prototype" \
 117                                 -a -n "$name_txt " -a -n "$template_members" \
 118                                 -a -n "$desc_txt" -a -n "$usage_txt" \
 119                                 -a -n "$help_txt"; then
 120                         ret=1
 121                         return
 122                 fi
 123         fi
 124         if test -z "$name_txt" -a -z "$desc_txt" -a -z "$usage_txt" \
 125                         -a -z "$help_txt"; then
 126                 ret=0
 127                 return
 128         fi
 129         ret=-1
 130         #return
 131         echo "!ERROR!"
 132         echo "N: $name_txt"
 133         echo "D: $desc_txt"
 134         echo "S: $usage_txt"
 135         echo "P: $perms_txt"
 136         echo "H: $help_txt"
 137         echo "O: $template_prototype"
 138 }
 139
 140 dump_man()
 141 {
 142         if test $template -eq 0; then
 143                 echo ".SS \"$name_txt\""
 144                 echo "$desc_txt"
 145                 echo
 146                 echo "\\fBUsage: \\fP$usage_txt"
 147         else
 148                 for member in $template_members; do
 149                         local sed_cmd="sed -e s/@member@/$member/g"
 150                         local t_name_txt=$(echo $name_txt | $sed_cmd)
 151                         echo ".SS \"$t_name_txt\""
 152                 done
 153                 echo "$desc_txt" | sed -e "s/@member@/{$(echo $template_members | sed -e 's/ / | /g')}/g"
 154                 echo
 155                 echo "\\fBUsage: \\fP"
 156                 echo
 157                 echo ".nf"
 158                 for member in $template_members; do
 159                         local sed_cmd="sed -e s/@member@/$member/g"
 160                         local t_usage_txt=$(echo $usage_txt | $sed_cmd)
 161                         printf "\t$t_usage_txt\n"
 162                 done
 163                 echo ".fi"
 164         fi
 165         echo
 166         echo "$help_txt" | sed -e 's/^  //'
 167         echo
 168         if test -n "$perms_txt"; then
 169                 echo -n "\\fBpermissions:\\fP "
 170                 if test "$perms_txt" = "0"; then
 171                         echo "(none)"
 172                 else
 173                         echo "$perms_txt"
 174                 fi
 175         fi
 176         echo
 177 }
 178
 179
 180 com_man()
 181 {
 182         echo "[$section_name]"
 183         echo
 184         while : ; do
 185                 read_one_command
 186                 if test $ret -lt 0; then
 187                         exit 1
 188                 fi
 189                 if test $ret -eq 0; then
 190                         break
 191                 fi
 192                 dump_man
 193         done
 194 }
 195
 196 dump_proto()
 197 {
 198         local source_file match=""
 199
 200         echo '/**'
 201         echo " * $desc_txt"
 202         echo ' *'
 203         if [[ "$system_includes" =~ openssl/rc4.h ]]; then
 204                 echo ' * \param rc4c The rc4 crypt context.'
 205         else
 206                 echo ' * \param fd The file descriptor to send output to.'
 207         fi
 208         echo ' * \param argc The number of arguments.'
 209         echo ' * \param argv The argument vector.'
 210         echo ' * '
 211         echo " * Usage: $usage_txt"
 212         echo ' * '
 213         echo "$help_txt" | sed -e 's/^/ * /g'
 214         echo ' */'
 215         if test -n "$prototype"; then
 216                 echo "$prototype"
 217                 echo
 218                 return
 219         fi
 220         for source_file in $source_files; do
 221                 match=$(grep "^\(__noreturn \)*int com_$name_txt(" $source_file | head -n 1 | sed -e 's/$/;/1')
 222                 if test -n "$match"; then
 223                         echo "$match"
 224                         break
 225                 fi
 226         done
 227         echo
 228 }
 229
 230 dump_array_member()
 231 {
 232         echo '{'
 233         echo ".name = \"$name_txt\","
 234         echo ".handler = com_$name_txt,"
 235         if test -n "$perms_txt"; then
 236                 echo ".perms = $perms_txt,"
 237         fi
 238         echo ".description = \"$desc_txt\","
 239         echo ".usage = \"$usage_txt\","
 240         echo ".help = "
 241         printf "%s\n" "$help_txt" | sed -e 's/^/\"/g' -e 's/$/\\n\"/g'
 242         echo '},'
 243 }
 244
 245
 246 template_loop()
 247 {
 248         local t_name="$name_txt"
 249         local t_perms="$perms_txt"
 250         local t_desc="$desc_txt"
 251         local t_usage="$usage_txt"
 252         local t_help="$help_txt"
 253         local t_source_files="$source_files"
 254         local member
 255         for member in $template_members; do
 256                 local sed_cmd="sed -e s/@member@/$member/g"
 257                 #echo "sed_cmd: $sed_cmd"
 258                 name_txt=$(echo $t_name | $sed_cmd)
 259                 #name_txt="$tname"
 260                 perms_txt=$(echo $t_perms | $sed_cmd)
 261                 desc_txt=$(echo $t_desc | $sed_cmd)
 262                 usage_txt=$(echo $t_usage | $sed_cmd)
 263                 help_txt=$(printf "%s\n" "$t_help" | $sed_cmd)
 264                 prototype=$(echo "$template_prototype" | $sed_cmd)
 265                 $1
 266         done
 267
 268 }
 269
 270 com_c_file()
 271 {
 272         echo "/** \file $output_file.c $c_file_comment */"
 273         echo "$system_includes"
 274         echo "$includes"
 275         echo "struct $array_type $array_name[] = {"
 276         while : ; do
 277                 read_one_command
 278                 if test $ret -lt 0; then
 279                         exit 1
 280                 fi
 281                 if test $ret -eq 0; then
 282                         break
 283                 fi
 284                 if test $template -eq 0; then
 285                         dump_array_member
 286                         continue
 287                 fi
 288                 template_loop dump_array_member
 289         done
 290         echo '{.name = NULL}};'
 291 }
 292
 293 com_header()
 294 {
 295         echo "/** \file $output_file.h $header_comment */"
 296         echo
 297         echo "extern struct $array_type $array_name[];"
 298         while : ; do
 299                 read_one_command
 300                 if test $ret -lt 0; then
 301                         exit 1
 302                 fi
 303                 if test $ret -eq 0; then
 304                         break
 305                 fi
 306                 if test $template -eq 0; then
 307                         dump_proto
 308                         continue
 309                 fi
 310                 template_loop dump_proto
 311         done
 312 }
 313
 314 read_header
 315 arg="$1"
 316 shift
 317 case "$arg" in
 318         "c")
 319                 com_c_file
 320                 ;;
 321         "h")
 322                 com_header
 323                 ;;
 324         "man")
 325                 com_man $*
 326                 ;;
 327 esac