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#!/usr/bin/perl -w
# Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
# its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# "report-include-statistics" script for WebKit Open Source Project
use strict;
use File::Find;
find(\&wanted, @ARGV ? @ARGV : ".");
my %paths;
my %sources;
my %includes;
sub wanted
{
my $file = $_;
if ($file eq "icu") {
$File::Find::prune = 1;
return;
}
if ($file !~ /^\./ && $file =~ /\.(h|cpp|c|mm|m)$/) {
$paths{$file} = $File::Find::name;
$sources{$file} = $File::Find::name if $file !~ /\.h/;
open FILE, $file or die;
while (<FILE>) {
if (m-^\s*#\s*(include|import)\s+["<]((\S+/)*)(\S+)[">]-) {
my $include = ($2 eq "sys/" ? $2 : "") . $4;
$includes{$file}{$include}++;
}
}
close FILE;
}
}
my %totalIncludes;
sub fillOut
{
my ($file) = @_;
return if defined $totalIncludes{$file};
for my $include (keys %{ $includes{$file} }) {
$totalIncludes{$file}{$include} = 1;
fillOut($include);
for my $i (keys %{ $totalIncludes{$include} }) {
$totalIncludes{$file}{$i} = 1;
}
}
}
my %inclusionCounts;
for my $file (keys %includes) {
$inclusionCounts{$file} = 0;
fillOut($file);
}
for my $file (keys %sources) {
for my $include (keys %{ $totalIncludes{$file} }) {
$inclusionCounts{$include}++;
}
}
for my $file (sort mostincludedcmp keys %includes) {
next if !$paths{$file};
my $count = $inclusionCounts{$file};
my $numIncludes = keys %{ $includes{$file} };
my $numTotalIncludes = keys %{ $totalIncludes{$file} };
print "$file is included $count times, includes $numIncludes files directly, $numTotalIncludes files total.\n"
}
# Sort most-included files first.
sub mostincludedcmp($$)
{
my ($filea, $fileb) = @_;
my $counta = $inclusionCounts{$filea} || 0;
my $countb = $inclusionCounts{$fileb} || 0;
return $countb <=> $counta if $counta != $countb;
my $ta = keys %{ $totalIncludes{$filea} };
my $tb = keys %{ $totalIncludes{$fileb} };
return $ta <=> $tb if $ta != $tb;
return $filea cmp $fileb;
}
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