linux-hardened/scripts/checkincludes.pl
Kamil Rytarowski cb77f0d623 scripts: Switch to more portable Perl shebang
The default NetBSD package manager is pkgsrc and it installs Perl
along other third party programs under custom and configurable prefix.
The default prefix for binary prebuilt packages is /usr/pkg, and the
Perl executable lands in /usr/pkg/bin/perl.

This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
the most portable solution that should work for almost everybody.
Perl's executable is detected automatically.

This change switches -w option passed to the executable with more
modern "use warnings;" approach. There is no functional change to the
default behavior.

While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?).

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-14 11:20:44 +09:00

97 lines
1.9 KiB
Perl
Executable file

#!/usr/bin/env perl
#
# 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";
}