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[/] [or1k/] [trunk/] [rtems/] [tools/] [update/] [ampolish] - Blame information for rev 1778

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1 158 chris 
#!/usr/bin/perl
2 
 
3 
package main ;
4 
 
5 
use strict ;
6 
 
7 
#
8 
# Perl script to beautify and enhance RTEMS automake Makefile.ams
9 
#
10 
# Reads from stdin and writes to stdout
11 
#
12 
# usage:
13 
# /ampolish Makefile.am~
14 
# mv Makefile.am~ Makefile.am
15 
#
16 
 
17 
my @vars ;
18 
my @conditions = ( "" ) ;
19 
my @buffer = ();
20 
my %var_ ;
21 
 
22 
define_variable( "\$(AUTOMAKE_OPTIONS)", ( "foreign",  "1.4" ) );
23 
define_variable( "\$(VPATH)", ( "\@srcdir\@" ) );
24 
 
25 
# find relative up-path to configure.in
26 
my $rtems_cfg = find_file(".","configure.in");
27 
 
28 
# find relative up-path from configure.in to VERSION
29 
my $rtems_top = find_file("$rtems_cfg","VERSION");
30 
 
31 
if ( "$rtems_top" eq "." ) { $rtems_top = "" ; }
32 
else { $rtems_top .= "/" ; }
33 
 
34 
{
35 
# PASS1:
36 
# read input file and concatenate multiple lines into single lines.
37 
 
38 
  my @ibuf = () ;
39 
 
40 
  while(  )
41 
  { # consume header
42 
    last if ( /^[^#].*$/ ) ;
43 
    push @ibuf, "$_" ;
44 
  }
45 
 
46 
  push @ibuf, "§header\n" ;
47 
 
48 
  do
49 
  {
50 
    if ( /^(#.*)$/o )
51 
    { # preserve comments
52 
        push @ibuf, "$_" ;
53 
    }
54 
    elsif ( /^(\t.*)\\[\s]*$/o )
55 
      { # multilines for scripts
56 
        my $line = "$1§" ;
57 
        while(  )
58 
        {
59 
          if ( /^(.*)\\[\s]*$/o )
60 
          {
61 
            $line .= "$1§" ;
62 
          }
63 
          else
64 
          {
65 
            $line .= "$_" ;
66 
            push @ibuf, $line ;
67 
            last ;
68 
          }
69 
        }
70 
      }
71 
    elsif ( /^(.*)\\[\s]*$/o )
72 
      { # multilines
73 
        my $line = "$1" ;
74 
        while(  )
75 
        {
76 
          if ( /^(.*)\\[\s]*$/o )
77 
          {
78 
            $line .= "$1" ;
79 
          }
80 
          else
81 
          {
82 
            $line .= "$_" ;
83 
            $line =~ s%[\s]+% %g ;
84 
            push @ibuf, "$line\n" ;
85 
            last ;
86 
          }
87 
        }
88 
      }
89 
    else
90 
      {
91 
        push @ibuf, "$_" ;
92 
      }
93 
  } while (  ) ;
94 
  @buffer = @ibuf ;
95 
}
96 
 
97 
{
98 
# PASS2:
99 
# fix obsolete constructs
100 
  my @ibuf = () ;
101 
 
102 
  foreach ( @buffer )
103 
  {
104 
#    tr /\{\}/\(\)/ ;
105 
 
106 
    if ( /^(TMP|PRE)INSTALL_FILES[\s]*=(.*)$/o )
107 
    { # force "+="
108 
      push @ibuf, "$1INSTALL_FILES +=$2\n" ;
109 
    }
110 
    elsif ( /^(VPATH|EXTRA_DIST)[\s]*\+=(.*)$/o )
111 
    { # force "="
112 
      push @ibuf, "$1 = $2\n" ;
113 
    }
114 
    elsif ( /^[\s]*ACLOCAL[\s]*=[\s]*\@ACLOCAL\@.*$/o )
115 
    { # remove the line
116 
    }
117 
    elsif ( /^[\s]*(ACLOCAL_AMFLAGS)[\s\t]*[\+]*=[\s]*(.*)[\s]*$/o )
118 
    { # remove the line
119 
    }
120 
    elsif ( /^[\s]*(AM_CFLAGS)[\s\t]*[\+]*=[\s]*\$\(CFLAGS_OS_V\)[\s]*$/o )
121 
    { # remove the line
122 
    }
123 
    elsif ( /^[\s]*debug-am:.*$/o )
124 
    { # remove the line
125 
    }
126 
    elsif ( /^[\s]*all(\-am):(.*)$/o )
127 
    { # replace the line
128 
      push @ibuf, "all-local:$2\n" ;
129 
    }
130 
    elsif ( /^[\s]*profile-am:.*$/o )
131 
    { # remove the line
132 
    }
133 
    elsif ( /^[\s]*include[\s\t]*\$\(RTEMS_ROOT\)\/make\/lib.cfg[\s]*$/o )
134 
    {
135 
      push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/lib.am\n" ;
136 
    }
137 
    elsif ( /^(.*[^\s])[\s]*$/o )
138 
    { # remove trailing spaces
139 
      push @ibuf, "$1\n" ;
140 
    }
141 
    else
142 
    {
143 
      push @ibuf, "$_" ;
144 
    }
145 
  }
146 
  @buffer = @ibuf ;
147 
}
148 
 
149 
# print STDERR "\n", @buffer, "\n" ;
150 
 
151 
{
152 
  my @ibuf = () ;
153 
  foreach ( @buffer )
154 
  {
155 
    if ( /^#(.*)$/o )
156 
    {
157 
      push @ibuf, "#$1\n" ;
158 
    }
159 
    elsif ( /^[\s]*if[\s\t]+([a-zA-Z0-9_]+)[\s\t]*$/o )
160 
    {
161 
      push @conditions, "\@" . $1 . "_TRUE\@" ;
162 
      push @ibuf, "if $1\n" ;
163 
    }
164 
    elsif ( /^[\s]*else[\s\t]*$/o )
165 
    {
166 
      @conditions[$#conditions] =~ s/_TRUE\@$/_FALSE\@/;
167 
      push @ibuf, "else\n" ;
168 
    }
169 
    elsif ( /^[\s]*endif[\s\t]*$/o )
170 
    {
171 
      pop @conditions ;
172 
      push @ibuf, "endif\n" ;
173 
    }
174 
    elsif ( /^§.*$/o )
175 
    {
176 
      push @ibuf, "$_" ;
177 
    }
178 
    elsif ( /^[\s]*(VPATH)[\s\t]*([\+]*)=[\s]*(.*)[\s]*$/o )
179 
    {
180 
      my $lh = "\$($1)" ;
181 
      my @rh = split( /:/,"$3");
182 
      if ( $#conditions  > 0 )
183 
      {
184 
        print STDERR "WARNING: $1 must not be set inside of conditionals!\n"
185 
      }
186 
      define_variable( "$lh", @rh );
187 
 
188 
    }
189 
    elsif ( /^[\s]*(AUTOMAKE_OPTIONS)[\s\t]*([\+]*)=[\s]*(.*)$/o )
190 
    {
191 
      my $lh = "\$($1)" ;
192 
      my @rh = &split_vars("$3");
193 
 
194 
      if ( $#conditions > 0 )
195 
      {
196 
        print STDERR "WARNING: $1 must not be set inside of conditionals!\n"
197 
      }
198 
 
199 
      define_variable( "$lh", @rh );
200 
    }
201 
    elsif ( /^[\s]*([a-zA-Z0-9_]+)[\s\t]*([\+]*)=[\s]*(.*)$/o )
202 
    {
203 
      my $lh = join ('',@conditions) . "\$($1)" ;
204 
      my @rh = &split_vars("$3");
205 
      my $seen = variable_seen( "$lh" ) ;
206 
 
207 
      if ( $#conditions > 0 )
208 
      {
209 
        define_variable( "\$($1)", () );
210 
      }
211 
 
212 
      define_variable( "$lh", @rh );
213 
 
214 
      if ( not $seen )
215 
      {
216 
        push @ibuf, "§$2var_$lh\n" ;
217 
      }
218 
    }
219 
    elsif ( /^[\s]*include[\s\t]*\$\(top_srcdir\)[\.\/]*automake\/(.*)\.am$/o )
220 
    {
221 
      if ( "$1" eq "lib" )
222 
      {
223 
        push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/$1.am\n" ;
224 
      }
225 
      elsif ( "$1" eq "local" )
226 
      {
227 
        $main::seen_local = 1 ;
228 
      }
229 
      elsif ( "$1" eq "host" )
230 
      {
231 
        $main::seen_host = 1 ;
232 
      }
233 
    }
234 
    elsif ( /^[\s]*include[\s\t]*(.*)$/o )
235 
    {
236 
      push @ibuf, "include $1\n" ;
237 
    }
238 
    elsif ( /^\t(.*)$/o )
239 
    {
240 
      push @ibuf, "\t$1\n" ;
241 
    }
242 
    elsif ( /^(.*)\:(.*)$/o )
243 
    {
244 
      push @ibuf, "$1:$2\n" ;
245 
    }
246 
    elsif ( /^[\s]*$/o )
247 
    {
248 
      push @ibuf, "\n" ;
249 
    }
250 
    else
251 
    {
252 
      die "ERROR: Don't know how to handle <$_>" ;
253 
    }
254 
  } # for
255 
  @buffer = @ibuf ;
256 
} # while
257 
 
258 
die "Conditional stack corrupted" if ( $#conditions != 0 );
259 
 
260 
foreach( @vars )
261 
{
262 
  purge( \@{$var_{"$_"}} );
263 
}
264 
 
265 
# print STDERR "\n", @buffer, "\n" ;
266 
 
267 
 
268 
{
269 
  my @ibuf = () ;
270 
  foreach( @buffer )
271 
  {
272 
    if ( /^#.*$/o )
273 
    {
274 
      push @ibuf, "$_" ;
275 
    }
276 
    elsif( /^§header$/o )
277 
    {
278 
      my $l = $var_{"\$(AUTOMAKE_OPTIONS)"} ;
279 
      push @ibuf, "\nAUTOMAKE_OPTIONS = @{$l}\n" ;
280 
      if ( "$rtems_cfg" eq "." )
281 
      {
282 
        push @ibuf, "ACLOCAL_AMFLAGS = -I \$(RTEMS_TOPdir)/aclocal\n" ;
283 
      }
284 
      if ( defined( @{$var_{"\$(VPATH)"}} ) )
285 
      {
286 
        if ( $#{$var_{"\$(VPATH)"}} > 0 )
287 
        {
288 
          my $l = join (':',@{$var_{"\$(VPATH)"}}) ;
289 
          push @ibuf, "\nVPATH = $l\n" ;
290 
        }
291 
      }
292 
      push @ibuf, "\n" ;
293 
    }
294 
    elsif ( /^§(\+|)var_(.*)\$\((.*)\)$/o )
295 
    {
296 
      print_var(\@ibuf, "$3 $1=", $var_{"$2\$($3)"}) ;
297 
    }
298 
    elsif ( /^\t.*$/o )
299 
    {
300 
      &print_script(\@ibuf, "$_");
301 
    }
302 
    elsif ( /^[\s]*if[\s]+([a-zA-Z0-9_]+)[\s\t]*$/o )
303 
    {
304 
      push @conditions, "\@$1_TRUE\@" ;
305 
      push @ibuf, "if $1\n" ;
306 
    }
307 
    elsif ( /^[\s]*else[\s]*$/o )
308 
    {
309 
      @conditions[$#conditions] =~ s/_TRUE\@$/_FALSE\@/;
310 
      push @ibuf, "else\n" ;
311 
    }
312 
    elsif ( /^[\s]*endif[\s]*$/o )
313 
    {
314 
      pop @conditions ;
315 
      push @ibuf, "endif\n" ;
316 
    }
317 
    else
318 
    {
319 
      print_line(\@ibuf,$_);
320 
    }
321 
  }
322 
 
323 
  if ( variable_seen("\$(SUBDIRS)") )
324 
  {
325 
    push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/subdirs.am\n" ;
326 
  }
327 
 
328 
  if ( defined( $main::seen_host ) )
329 
  {
330 
    push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/host.am\n" ;
331 
  }
332 
  else
333 
  {
334 
    push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/local.am\n" ;
335 
  }
336 
 
337 
  @buffer = @ibuf ;
338 
}
339 
 
340 
#print STDERR "\n", @buffer, "\n" ;
341 
 
342 
{ ## pretty print
343 
  my $out = join ('',@buffer) ;
344 
  $out =~ s/\s\#\n(\#\n)+/\n/g ;
345 
  $out =~ s/\n\n\#\n\n/\n/g ;
346 
  $out =~ s/\n\n[\n]*/\n\n/g ;
347 
  print $out ;
348 
}
349 
 
350 
exit 0;
351 
 
352 
# find a relative up-path to a file $file, starting at directory $pre
353 
sub find_file
354 
{
355 
  my $pre = $_[0] ;
356 
  my $file= $_[1] ;
357 
 
358 
  my $top = "." ;
359 
  if (not "$pre") { $pre = "." ; }
360 
 
361 
  for ( my $str = "$pre" . "/" . "$top" ;
362 
    ( -d "$str" ) ;
363 
    $str = "$pre" . "/" . "$top" )
364 
  {
365 
    if ( -f "${str}/${file}" )
366 
    {
367 
      return $top ;
368 
    }
369 
    if ( "$top" eq "." )
370 
    {
371 
      $top = ".." ;
372 
    }
373 
    else
374 
    {
375 
      $top .= "/.." ;
376 
    }
377 
  } ;
378 
  die "Can't find file ${file}\n" ;
379 
}
380 
 
381 
sub variable_seen($)
382 
{
383 
  my $label = "$_[0]" ;
384 
  my $res = defined $var_{"$label"};
385 
#print STDERR "SEEN: $label ->$res<\n" ;
386 
  return $res ;
387 
}
388 
 
389 
sub define_variable($$)
390 
{
391 
  my ($label,@value) = @_ ;
392 
 
393 
  if ( not variable_seen("$label") )
394 
  {
395 
#print STDERR "DEFINING: $label\n" ;
396 
    push @vars, "$label" ;
397 
  }
398 
 
399 
  foreach my $i ( @{value} )
400 
  {
401 
    push @{$var_{"$label"}}, $i ;
402 
  }
403 
}
404 
 
405 
# Strip off duplicate entries from a list
406 
sub purge($)
407 
{
408 
  my $list = $_[0] ; # Reference to list !
409 
  my (@tmp) = () ;
410 
 
411 
  foreach my $l ( @{$list} )
412 
  {
413 
    my $i = 1 ;
414 
    foreach my $t (@tmp)
415 
    {
416 
      if ( $t eq $l )
417 
      {
418 
        $i = 0 ;
419 
        last ;
420 
      }
421 
    }
422 
    push @tmp,$l if ($i) ;
423 
  }
424 
 
425 
  @{$list} = @tmp ;
426 
}
427 
 
428 
#
429 
# Break the right hand side of a variable assignment into separate chunks
430 
#
431 
sub split_vars($)
432 
{
433 
  my $line = $_[0] ;
434 
  my (@buf) = split(//,"$line") ;
435 
 
436 
  my $begin = 0 ;
437 
  my @res = () ;
438 
 
439 
  my $depth = 0 ;
440 
  my $state = 0 ;
441 
 
442 
  my $len = $#buf + 1 ;
443 
  for ( my $i = 0 ; $i < $len ; $i++ )
444 
  {
445 
    my $c = @buf[$i] ;
446 
    if ( $state == 0 )
447 
    {
448 
      if ( "$c" ne " " )
449 
      { # token
450 
        $begin = $i ;
451 
        $state++ ;
452 
      }
453 
      if ( "$c" eq "\$" )
454 
      { # variable
455 
        $depth++ ;
456 
      }
457 
    }
458 
    elsif ( $state == 1 )
459 
    {
460 
      if ( ( "$c" eq "\)" ) or ( "$c" eq "\}" ) )
461 
      { # variable
462 
        $depth-- ;
463 
      }
464 
      elsif ( ("$c" eq " " ) and ( $depth == 0 ) )
465 
      {
466 
        push @res, substr($line,$begin,$i-$begin);
467 
        $state-- ;
468 
      }
469 
      elsif ( "$c" eq "\$" )
470 
      { # variable
471 
        $depth++ ;
472 
      }
473 
    }
474 
    else
475 
    {
476 
      die "split_vars: unknown mode\n" ;
477 
    }
478 
  }
479 
 
480 
  if ( $state > 0 )
481 
  {
482 
    push @res, substr($line,$begin,$len-$begin);
483 
    $state = 0
484 
  }
485 
  return @res ;
486 
}
487 
 
488 
sub print_var($$$)
489 
{
490 
  my ($ibuf,$line,$l) = @_ ; # $l .. reference to list
491 
 
492 
  foreach (@{$l}) {
493 
    if ( ( length($line) + length($_) ) < 76 )
494 
    {
495 
          $line .= " $_";
496 
    }
497 
    else
498 
    {
499 
           push @{$ibuf}, "$line \\\n";
500 
           $line = "    $_" ;
501 
    }
502 
  }
503 
  push @{$ibuf}, "$line\n" ;
504 
}
505 
 
506 
sub print_line($$)
507 
{
508 
  my ($ibuf,$input) = @_ ;
509 
  my @l = split( / /, $input );
510 
  my $line = shift @l ;
511 
 
512 
  foreach my $i (@l) {
513 
    if ( ( length($line) + length($i) ) < 76 )
514 
    {
515 
          $line .= " $i";
516 
    }
517 
    else
518 
    {
519 
           push @{$ibuf}, "$line \\\n";
520 
           $line = "    $i" ;
521 
    }
522 
  }
523 
  push @{$ibuf}, "$line" ;
524 
}
525 
 
526 
sub print_script($$)
527 
{
528 
  my ($ibuf,$input) = @_ ;
529 
  $input =~ s%§%\\\n%g ;
530 
  push @{$ibuf}, $input ;
531 
}

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