scripts/checkdeclares.pl

   1 #!/usr/bin/env perl
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # checkdeclares: find struct declared more than once
   5 #
   6 # Copyright 2021 Wan Jiabing<wanjiabing@vivo.com>
   7 # Inspired by checkincludes.pl
   8 #
   9 # This script checks for duplicate struct declares.
  10 # Note that this will not take into consideration macros so
  11 # you should run this only if you know you do have real dups
  12 # and do not have them under #ifdef's.
  13 # You could also just review the results.
  14
  15 use strict;
  16
  17 sub usage {
  18         print "Usage: checkdeclares.pl file1.h ...\n";
  19         print "Warns of struct declaration duplicates\n";
  20         exit 1;
  21 }
  22
  23 if ($#ARGV < 0) {
  24         usage();
  25 }
  26
  27 my $dup_counter = 0;
  28
  29 foreach my $file (@ARGV) {
  30         open(my $f, '<', $file)
  31             or die "Cannot open $file: $!.\n";
  32
  33         my %declaredstructs = ();
  34
  35         while (<$f>) {
  36                 if (m/^\s*struct\s*(\w*);$/o) {
  37                         ++$declaredstructs{$1};
  38                 }
  39         }
  40
  41         close($f);
  42
  43         foreach my $structname (keys %declaredstructs) {
  44                 if ($declaredstructs{$structname} > 1) {
  45                         print "$file: struct $structname is declared more than once.\n";
  46                         ++$dup_counter;
  47                 }
  48         }
  49 }
  50
  51 if ($dup_counter == 0) {
  52         print "No duplicate struct declares found.\n";
  53 }