1 #!/usr/bin/perl -w

     2 

     3 # Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.

     4 #

     5 # Redistribution and use in source and binary forms, with or without

     6 # modification, are permitted provided that the following conditions

     7 # are met:

     8 #

     9 # 1.  Redistributions of source code must retain the above copyright

    10 #     notice, this list of conditions and the following disclaimer. 

    11 # 2.  Redistributions in binary form must reproduce the above copyright

    12 #     notice, this list of conditions and the following disclaimer in the

    13 #     documentation and/or other materials provided with the distribution. 

    14 # 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    15 #     its contributors may be used to endorse or promote products derived

    16 #     from this software without specific prior written permission. 

    17 #

    18 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    19 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    21 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    22 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    23 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    24 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    25 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    28 

    29 # "find-extra-includes" script for Web Kit Open Source Project

    30 

    31 use strict;

    32 use File::Find;

    33 

    34 find(\&wanted, @ARGV ? @ARGV : ".");

    35 

    36 my %paths;

    37 my %includes;

    38 

    39 sub wanted

    40 {

    41     my $file = $_;

    42 

    43     if ($file eq "icu") {

    44         $File::Find::prune = 1;

    45         return;

    46     }

    47 

    48     if ($file !~ /^\./ && $file =~ /.(h|cpp|c|mm|m)$/) {

    49         $paths{$file} = $File::Find::name;

    50         open FILE, $file or die;

    51         while (<FILE>) {

    52             if (m-^\s*#\s*(include|import)\s+["<]((\S+/)*)(\S+)[">]-) {

    53                 my $include = ($2 eq "sys/" ? $2 : "") . $4;

    54                 $includes{$file}{$include}++;

    55             }

    56         }

    57         close FILE;

    58     }

    59 }

    60 

    61 my %totalIncludes;

    62 

    63 sub fillOut

    64 {

    65     my ($file) = @_;

    66 

    67     return if defined $totalIncludes{$file};

    68 

    69     for my $include (keys %{ $includes{$file} }) {

    70         $totalIncludes{$file}{$include} = 1;

    71         fillOut($include);

    72         for my $i (keys %{ $totalIncludes{$include} }) {

    73             $totalIncludes{$file}{$i} = 1;

    74         }

    75     }

    76 }

    77 

    78 sub check

    79 {

    80     my ($file) = @_;

    81 

    82     for my $include (keys %{ $includes{$file} }) {

    83         fillOut($include);

    84     }

    85     for my $i1 (sort keys %{ $includes{$file} }) {

    86         for my $i2 (keys %{ $includes{$file} }) {

    87             next if $i1 eq $i2;

    88             if ($totalIncludes{$i2}{$i1}) {

    89                 my $b1 = $i1;

    90                 my $b2 = $file;

    91                 $b1 =~ s/\..+$//;

    92                 $b2 =~ s/\..+$//;

    93                 print "$paths{$file} does not need to include $i1, because $i2 does\n" if $b1 ne $b2;

    94                 last;

    95             }

    96         }

    97     }

    98 }

    99 

   100 for my $file (sort keys %includes) {

   101     check($file);

   102 }