build/gensources.sh

   1 #! /bin/sh
   2
   3 outfile=$1
   4 incfile=$2
   5 excfile=$3
   6
   7 process_includes_1() {
   8     sed -e '/^[ \t]*$/d' -e '/^[ \t]*#/d' $1 > $2
   9     if cmp -s $1 $2; then
  10         false
  11     else
  12         sed -n 's,^[ \t]*#include ,,p' $1 |
  13         while read inc; do
  14             cat $inc >> $2
  15             echo $outfile: $inc >> $outfile.makefrag
  16             echo $inc: >> $outfile.makefrag
  17         done
  18     fi
  19 }
  20
  21 process_includes() {
  22     i=$1; o=$2; t=${2}.tmp
  23     while process_includes_1 $i $o; do
  24         mv $o $t
  25         i=$t
  26     done
  27     rm -f $t
  28 }
  29
  30 rm -f $outfile.makefrag
  31
  32 process_includes $incfile $outfile.inc
  33
  34 sort -u $outfile.inc > $outfile.inc_s
  35 rm -f $outfile.inc
  36
  37 if test -z "$excfile"; then
  38     mv $outfile.inc_s $outfile
  39 else
  40     process_includes $excfile $outfile.exc
  41
  42     sort -u $outfile.exc > $outfile.exc_s
  43     rm -f $outfile.exc
  44
  45     sort -m $outfile.inc_s $outfile.exc_s | uniq -u > $outfile
  46     rm -f $outfile.inc_s $outfile.exc_s
  47 fi
  48
  49