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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Perl
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899#!/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";}