1#!/usr/bin/perl
 
 2#
 3# checkincludes: find/remove files included more than once
 4#
 5# Copyright abandoned, 2000, Niels Kristian Bech Jensen <nkbj@image.dk>.
 6# Copyright 2009 Luis R. Rodriguez <mcgrof@gmail.com>
 7#
 8# This script checks for duplicate includes. It also has support
 9# to remove them in place. Note that this will not take into
10# consideration macros so you should run this only if you know
11# you do have real dups and do not have them under #ifdef's. You
12# could also just review the results.
13
14use strict;
15
16sub usage {
17	print "Usage: checkincludes.pl [-r]\n";
18	print "By default we just warn of duplicates\n";
19	print "To remove duplicated includes in place use -r\n";
20	exit 1;
21}
22
23my $remove = 0;
24
25if ($#ARGV < 0) {
26	usage();
27}
28
29if ($#ARGV >= 1) {
30	if ($ARGV[0] =~ /^-/) {
31		if ($ARGV[0] eq "-r") {
32			$remove = 1;
33			shift;
34		} else {
35			usage();
36		}
37	}
38}
39
 
 
40foreach my $file (@ARGV) {
41	open(my $f, '<', $file)
42	    or die "Cannot open $file: $!.\n";
43
44	my %includedfiles = ();
45	my @file_lines = ();
46
47	while (<$f>) {
48		if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
49			++$includedfiles{$1};
50		}
51		push(@file_lines, $_);
52	}
53
54	close($f);
55
56	if (!$remove) {
57		foreach my $filename (keys %includedfiles) {
58			if ($includedfiles{$filename} > 1) {
59				print "$file: $filename is included more than once.\n";
 
60			}
61		}
62		next;
63	}
64
65	open($f, '>', $file)
66	    or die("Cannot write to $file: $!");
67
68	my $dups = 0;
69	foreach (@file_lines) {
70		if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
71			foreach my $filename (keys %includedfiles) {
72				if ($1 eq $filename) {
73					if ($includedfiles{$filename} > 1) {
74						$includedfiles{$filename}--;
75						$dups++;
 
76					} else {
77						print {$f} $_;
78					}
79				}
80			}
81		} else {
82			print {$f} $_;
83		}
84	}
85	if ($dups > 0) {
86		print "$file: removed $dups duplicate includes\n";
87	}
88	close($f);
 
 
 
 
89}

 1#!/usr/bin/env perl
 2# SPDX-License-Identifier: GPL-2.0
 3#
 4# checkincludes: find/remove files included more than once
 5#
 6# Copyright abandoned, 2000, Niels Kristian Bech Jensen <nkbj@image.dk>.
 7# Copyright 2009 Luis R. Rodriguez <mcgrof@gmail.com>
 8#
 9# This script checks for duplicate includes. It also has support
10# to remove them in place. Note that this will not take into
11# consideration macros so you should run this only if you know
12# you do have real dups and do not have them under #ifdef's. You
13# could also just review the results.
14
15use strict;
16
17sub usage {
18	print "Usage: checkincludes.pl [-r]\n";
19	print "By default we just warn of duplicates\n";
20	print "To remove duplicated includes in place use -r\n";
21	exit 1;
22}
23
24my $remove = 0;
25
26if ($#ARGV < 0) {
27	usage();
28}
29
30if ($#ARGV >= 1) {
31	if ($ARGV[0] =~ /^-/) {
32		if ($ARGV[0] eq "-r") {
33			$remove = 1;
34			shift;
35		} else {
36			usage();
37		}
38	}
39}
40
41my $dup_counter = 0;
42
43foreach my $file (@ARGV) {
44	open(my $f, '<', $file)
45	    or die "Cannot open $file: $!.\n";
46
47	my %includedfiles = ();
48	my @file_lines = ();
49
50	while (<$f>) {
51		if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
52			++$includedfiles{$1};
53		}
54		push(@file_lines, $_);
55	}
56
57	close($f);
58
59	if (!$remove) {
60		foreach my $filename (keys %includedfiles) {
61			if ($includedfiles{$filename} > 1) {
62				print "$file: $filename is included more than once.\n";
63				++$dup_counter;
64			}
65		}
66		next;
67	}
68
69	open($f, '>', $file)
70	    or die("Cannot write to $file: $!");
71
72	my $dups = 0;
73	foreach (@file_lines) {
74		if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
75			foreach my $filename (keys %includedfiles) {
76				if ($1 eq $filename) {
77					if ($includedfiles{$filename} > 1) {
78						$includedfiles{$filename}--;
79						$dups++;
80						++$dup_counter;
81					} else {
82						print {$f} $_;
83					}
84				}
85			}
86		} else {
87			print {$f} $_;
88		}
89	}
90	if ($dups > 0) {
91		print "$file: removed $dups duplicate includes\n";
92	}
93	close($f);
94}
95
96if ($dup_counter == 0) {
97	print "No duplicate includes found.\n";
98}