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#!/usr/bin/perl
# Copyright 2018 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Extract header files required for build protobuf-lite
#
# usage: ./extract_headers.pl *.cc
use strict;
use warnings;
sub Process() {
my $file = shift @_;
if ($file =~ /\.h$/) {
print "$file\n";
}
return unless open(F, $file);
my @files = ();
while (<F>) {
chomp;
if (/\#include <(google\/protobuf\/[^>]+)>/) {
push @files, $1;
}
}
close(F);
for my $file (@files) {
&Process($file);
}
}
for my $f (@ARGV) {
&Process($f);
}
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