tools/gensources.sh

   1 #!/usr/bin/env bash
   2
   3 includefile=$1
   4 excludefile=$2
   5
   6 ## input variables:
   7 ##      $filelist:
   8 ##              A colon (':') separated list of files already read.
   9 ##              Must be initialized to ":".
  10 ##      $excludelist:
  11 ##              A newline separated of element (support Shell Patterns) to exclude.
  12 ##      $separator:
  13 ##              The separator used in list for the output
  14 ##
  15 ## output variables:
  16 ##      $list:
  17 ##              A list of elements separated by the separator given in $separator.
  18 ##              The new elements will be appended to the list.
  19 readlist () {
  20         local onelist
  21         local onelistcontent
  22         onelist=$1
  23
  24         if [ ":$onelist:" = "::" ] ; then return ; fi
  25         if [ ! -f $onelist ] ; then return ; fi
  26         if [ ":${filelist##*:$onelist:*}:" = "::" ]  ; then return ; fi
  27         filelist=":$onelist$filelist"
  28
  29         onelistcontent=`cat $onelist | sed "s=[ \t]*$==g" | while read line ; do echo -n $line ; echo -n ":" ; done`
  30
  31         OFS="$IFS"
  32         IFS=":"
  33         for line in $onelistcontent ; do
  34                 line2=${line##\#}
  35                 if [ ":$line:" = ":$line2:" ] ; then
  36                         for linex in $excludelist ; do
  37                                 if [ ":${line##$linex}:" = "::" ] ; then line="" ; fi
  38                         done
  39                         if [ ":$line:" != "::" ] ; then
  40                                 if [ ":$list:" = "::" ] ; then
  41                                         list="$line"
  42                                 else
  43                                         list="$list$separator$line"
  44                                 fi
  45                         fi
  46                 else
  47                         line3=${line2##include }
  48                         if [ ":$line3:" != ":$line2:" -a ":$line3:" != "::" ] ; then
  49                                 readlist "$line3"
  50                         fi
  51                 fi
  52         done
  53         IFS="$OFS"
  54 }
  55
  56 list=""
  57 filelist=":"
  58 excludelist=""
  59 separator=":"
  60 readlist "$excludefile"
  61
  62 excludelist="$list"
  63 list=""
  64 filelist=":"
  65 separator="
  66 "
  67 readlist "$includefile"
  68 echo "$list" | sort | uniq