X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/95aa056551f52c584698ab9faf16c6e993f2d2a5..27b757ee1ecd8a0e9af94b3b1d42adae74534681:/regen.pl

diff --git a/regen.pl b/regen.pl
index 3d2ad4f..4f3be80 100644
--- a/regen.pl
+++ b/regen.pl
@@ -1,5 +1,8 @@
 #!/usr/bin/perl -w
-require 5.003;	# keep this compatible, an old perl is all we may have before
+#
+# regen.pl - a wrapper that runs all *.pl scripts to to autogenerate files
+
+require 5.004;	# keep this compatible, an old perl is all we may have before
                 # we build the new one
 
 # The idea is to move the regen_headers target out of the Makefile so that
@@ -9,55 +12,23 @@ require 5.003;	# keep this compatible, an old perl is all we may have before
 # anything else.
 
 use strict;
-my $perl = $^X;
-
-# keep warnings.pl in sync with the CPAN distribution by not requiring core
-# changes.  Um, what ?
-# safer_unlink ("warnings.h", "lib/warnings.pm");
 
-my %gen = (
-	   'autodoc.pl'  => [qw[pod/perlapi.pod pod/perlintern.pod]],
-	   'embed.pl'    => [qw[proto.h embed.h embedvar.h global.sym
-				perlapi.h perlapi.c]],
-	   'keywords.pl' => [qw[keywords.h]],
-	   'opcode.pl'   => [qw[opcode.h opnames.h pp_proto.h pp.sym]],
-	   'regcomp.pl'  => [qw[regnodes.h]],
-	   'warnings.pl' => [qw[warnings.h lib/warnings.pm]],
-	   'reentr.pl'   => [qw[reentr.c reentr.h]],
-	   'overload.pl' => [qw[overload.h]],
-	   );
+# Which scripts to run. Note the ordering: embed.pl must run after
+# opcode.pl, since it depends on pp.sym
 
-sub do_cksum {
-    my $pl = shift;
-    my %cksum;
-    for my $f (@{ $gen{$pl} }) {
-	local *FH;
-	if (open(FH, $f)) {
-	    local $/;
-	    $cksum{$f} = unpack("%32C*", <FH>);
-	    close FH;
-	} else {
-	    warn "$0: $f: $!\n";
-	}
-    }
-    return %cksum;
-}
+my @scripts = qw(
+keywords.pl
+opcode.pl
+overload.pl
+reentr.pl
+regcomp.pl
+warnings.pl
+embed.pl
+);
 
-foreach my $pl (qw (keywords.pl opcode.pl embed.pl
-		    regcomp.pl warnings.pl autodoc.pl reentr.pl)) {
+my $tap = $ARGV[0] && $ARGV[0] eq '--tap' ? '# ' : '';
+foreach my $pl (map {"regen/$_"} @scripts) {
   my @command =  ($^X, $pl, @ARGV);
-  print "@command\n";
-  my %cksum0;
-  %cksum0 = do_cksum($pl) unless $pl eq 'warnings.pl'; # the files were removed
+  print "$tap@command\n";
   system @command;
-  next if $pl eq 'warnings.pl'; # the files were removed
-  my %cksum1 = do_cksum($pl);
-  my @chg;
-  for my $f (@{ $gen{$pl} }) {
-      push(@chg, $f)
-	  if !defined($cksum0{$f}) ||
-	     !defined($cksum1{$f}) ||
-	     $cksum0{$f} ne $cksum1{$f};
-  }
-  print "Changed: @chg\n" if @chg;
 }