name : checkincludes.pl #!/usr/bin/env perl # SPDX-License-Identifier: GPL-2.0 # # checkincludes: find/remove files included more than once # # Copyright abandoned, 2000, Niels Kristian Bech Jensen <nkbj@image.dk>. # Copyright 2009 Luis R. Rodriguez <mcgrof@gmail.com> # # This script checks for duplicate includes. It also has support # to remove them in place. Note that this will not take into # consideration macros so you should run this only if you know # you do have real dups and do not have them under #ifdef's. You # could also just review the results. use strict; sub usage { print "Usage: checkincludes.pl [-r]\n"; print "By default we just warn of duplicates\n"; print "To remove duplicated includes in place use -r\n"; exit 1; } my $remove = 0; if ($#ARGV < 0) { usage(); } if ($#ARGV >= 1) { if ($ARGV[0] =~ /^-/) { if ($ARGV[0] eq "-r") { $remove = 1; shift; } else { usage(); } } } my $dup_counter = 0; foreach my $file (@ARGV) { open(my $f, '<', $file) or die "Cannot open $file: $!.\n"; my %includedfiles = (); my @file_lines = (); while (<$f>) { if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) { ++$includedfiles{$1}; } push(@file_lines, $_); } close($f); if (!$remove) { foreach my $filename (keys %includedfiles) { if ($includedfiles{$filename} > 1) { print "$file: $filename is included more than once.\n"; ++$dup_counter; } } next; } open($f, '>', $file) or die("Cannot write to $file: $!"); my $dups = 0; foreach (@file_lines) { if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) { foreach my $filename (keys %includedfiles) { if ($1 eq $filename) { if ($includedfiles{$filename} > 1) { $includedfiles{$filename}--; $dups++; ++$dup_counter; } else { print {$f} $_; } } } } else { print {$f} $_; } } if ($dups > 0) { print "$file: removed $dups duplicate includes\n"; } close($f); } if ($dup_counter == 0) { print "No duplicate includes found.\n"; }