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checkincludes.pl: add option to remove duplicates in place

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checkincludes.pl is more useful if it actually removed the lines.  This
adds support for that with -r.

[akpm@linux-foundation.org: improve usage message]
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Luis R. Rodriguez 2009-09-18 12:49:27 -07:00 committed by Sam Ravnborg
parent 82fa39552f
commit 92f3f19c51
1 changed files with 59 additions and 7 deletions
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66
scripts/checkincludes.pl
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@ -1,33 +1,85 @@
#!/usr/bin/perl
#
# checkincludes: Find files included more than once in (other) files.
# 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.
sub usage {
print "Usage: checkincludes.pl <file list>\n";
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();
usage();
}
if ($#ARGV >= 1) {
if ($ARGV[0] =~ /^-/) {
if ($ARGV[0] eq "-r") {
$remove = 1;
shift;
} else {
usage();
}
}
}
foreach $file (@ARGV) {
open(FILE, $file) or die "Cannot open $file: $!.\n";
my %includedfiles = ();
my @file_lines = ();
while (<FILE>) {
if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
++$includedfiles{$1};
}
push(@file_lines, $_);
}
close(FILE);
foreach $filename (keys %includedfiles) {
if ($includedfiles{$filename} > 1) {
print "$file: $filename is included more than once.\n";
if (!$remove) {
foreach $filename (keys %includedfiles) {
if ($includedfiles{$filename} > 1) {
print "$file: $filename is included more than once.\n";
}
}
next;
}
open(FILE,">$file") || die("Cannot write to $file: $!");
my $dups = 0;
foreach (@file_lines) {
if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
foreach $filename (keys %includedfiles) {
if ($1 eq $filename) {
if ($includedfiles{$filename} > 1) {
$includedfiles{$filename}--;
$dups++;
} else {
print FILE $_;
}
}
}
} else {
print FILE $_;
}
}
if ($dups > 0) {
print "$file: removed $dups duplicate includes\n";
}
close(FILE);
}