mcs/build/gensources.sh

   1 #! /bin/sh
   2
   3 outfile=$1
   4 incfile=$2
   5 excfile=$3
   6 extfile=$4
   7 extexcfile=$5
   8
   9 process_includes_1() {
  10     sed -e '/^[ \t]*$/d' -e '/^[ \t]*#/d' $1 > $2
  11     if cmp -s $1 $2; then
  12         false
  13     else
  14         sed -n 's,^[ \t]*#include ,,p' $1 |
  15         while read inc; do
  16             cat $inc >> $2
  17             echo $outfile: $inc >> $outfile.makefrag
  18             echo $inc: >> $outfile.makefrag
  19         done
  20     fi
  21 }
  22
  23 process_includes() {
  24     i=$1; o=$2; t=${2}.tmp
  25     while process_includes_1 $i $o; do
  26         mv $o $t
  27         i=$t
  28     done
  29     rm -f $t
  30 }
  31
  32 rm -f $outfile.makefrag
  33
  34 process_includes $incfile $outfile.inc
  35
  36 if test x$extfile != x -a -f "$extfile"; then
  37         process_includes $extfile $outfile.ext.inc
  38         cat $outfile.ext.inc >> $outfile.inc
  39         rm -f $outfile.ext.inc
  40 fi
  41
  42 sort -u $outfile.inc > $outfile.inc_s
  43 rm -f $outfile.inc
  44
  45
  46 if test -n "$excfile"; then
  47     process_includes $excfile $outfile.exc
  48 fi
  49
  50 if test -n "$extexcfile"; then
  51     process_includes $extexcfile $outfile.ext_exc
  52         cat $outfile.ext_exc >> $outfile.exc
  53         rm -f $outfile.ext_exc
  54 fi
  55
  56 if test -f $outfile.exc; then
  57         # So what we're doing below with uniq -u is that we take
  58         # lines that have not been duplicated. This computes the
  59         # symmetric difference between the files. This is not
  60         # what we want. If a file is in the excludes but not in
  61         # the sources, we want that file not to show up. By duplicating the
  62         # excludes, we ensure that we won't end up in this failure state.
  63         sort -u $outfile.exc > $outfile.exc_s
  64
  65         # Duplicate excludes
  66         cat $outfile.exc_s >> $outfile.exc_s_dup
  67         cat $outfile.exc_s >> $outfile.exc_s_dup
  68
  69         rm -f $outfile.exc $outfile.exc_s
  70
  71         cat $outfile.inc_s $outfile.exc_s_dup | sort | uniq -u > $outfile
  72         rm -f $outfile.inc_s $outfile.exc_s_dup
  73 else
  74         mv $outfile.inc_s $outfile
  75 fi
  76
  77