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      1 #!/usr/bin/env perl
      2 
      3 # Note: this script must not be used to build MPFR due to the
      4 # dependency on perl, but this is OK for "make dist".
      5 
      6 # Copyright 2016-2023 Free Software Foundation, Inc.
      7 # This script is free software; the Free Software Foundation
      8 # gives unlimited permission to copy and/or distribute it,
      9 # with or without modifications, as long as this notice is preserved.
     10 
     11 # This program is distributed in the hope that it will be useful,
     12 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
     13 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
     14 # PARTICULAR PURPOSE.
     15 
     16 use strict;
     17 use Cwd;
     18 
     19 if (! -d 'src')
     20   {
     21     getcwd() =~ m,/tools$,
     22       or die "Execute $0 from the MPFR source directory\n";
     23     chdir '..' or die "$!\n$0: can't change cwd\n";
     24   }
     25 
     26 open VERSION, '<', 'VERSION'
     27   or die "$!\n$0: can't open VERSION file\n";
     28 my $version = do { local $/; <VERSION> };
     29 close VERSION or die "$!\n$0: can't close VERSION file\n";
     30 
     31 my ($base,$mv,$pl,$suf) = $version =~ /^((\d+\.\d+)\.(\d+))(-\S+)?/
     32   or die "$0: bad VERSION format\n";
     33 
     34 my $r1 = qr/^Changes from version/;
     35 my $r2 = qr/ to version \Q$base\E:/;
     36 my $rx = $pl ? qr/$r1 \Q$mv\E\.@{[$pl-1]}$r2/ : qr/${r1}s? \S+\.[0*]$r2/;
     37 
     38 open NEWS, '<', 'NEWS'
     39   or die "$!\n$0: can't open NEWS file\n";
     40 my $ok;
     41 while (<NEWS>)
     42   {
     43     /$rx/ and $ok = 1;
     44     # If this is a release or a release candidate, check that
     45     # the NEWS file does not contain FIXME or TODO.
     46     $suf =~ /^(-rc.*)?$/ && /FIXME|TODO/
     47       and $! = 2, die "$0: $& in NEWS file";
     48   }
     49 close NEWS or die "$!\n$0: can't close NEWS file\n";
     50 
     51 $ok or $! = 1, die "$0: missing or bad change log in NEWS file\n";
     52