pjs/build/autoconf/acoutput-fast.pl

145 строки
4.0 KiB
Perl
Исходник Обычный вид История

#! /usr/bin/env perl
#
# The contents of this file are subject to the Netscape Public License
# Version 1.0 (the "NPL"); you may not use this file except in
# compliance with the NPL. You may obtain a copy of the NPL at
# http://www.mozilla.org/NPL/
#
# Software distributed under the NPL is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
# for the specific language governing rights and limitations under the
# NPL.
#
# The Initial Developer of this code under the NPL is Netscape
# Communications Corporation. Portions created by Netscape are
# Copyright (C) 1999 Netscape Communications Corporation. All Rights
# Reserved.
#
# acoutput-fast.pl - Quickly create makefiles that are in a common format.
#
# Most of the makefiles in mozilla only refer to two configure variables:
# @srcdir@
# @top_srcdir@
# However, configure does not know any better and it runs sed on each file
# with over 150 replacement rules (slow as molasses).
#
# This script takes a list of makefiles as input. For example,
#
# echo $MAKEFILES | acoutput-fast.pl
#
# The script creates each Makefile that only references @srcdir@ and
# @top_srcdir@. For other files, it lists them in a shell command that is
# printed to stdout:
#
# CONFIG_FILES="unhandled_files..."; export CONFIG_FILES
#
# This command can be used to have config.status create the unhandled
# files. For example,
#
# eval "echo $MAKEFILES | acoutput-fast.pl"
# AC_OUTPUT($MAKEFILES)
#
# Send comments, improvements, bugs to Steve Lamm (slamm@netscape.com).
#use File::Basename;
sub dirname {
my $dir = $_[0];
return '.' if not $dir =~ m%/%;
$dir =~ s%/[^/][^/]*$%%;
return $dir;
}
$ac_given_srcdir = $0;
$ac_given_srcdir =~ s|/?build/autoconf/.*$||;
$ac_given_srcdir = '.' if $ac_given_srcdir eq '';
# Read list of makefiles from the stdin or,
# from files listed on the command-line.
#
@makefiles=();
push @makefiles, split while (<>);
# Create all the directories at once.
# This can be much faster than calling mkdir() for each one.
@dirs_to_create = ();
%have_seen = ();
foreach $ac_file (@makefiles) {
next if $ac_file =~ /:/;
$ac_dir = dirname($ac_file);
next if defined($have_seen{$ac_dir});
push @dirs_to_create, $ac_dir if not -d $ac_dir;
$have_seen{$ac_dir} = 1;
}
system "mkdir ".join(' ',@dirs_to_create) if $#dirs_to_create >= 0;
# Output the makefiles.
#
@unhandled=();
foreach $ac_file (@makefiles) {
if (not $ac_file =~ /Makefile$/ or $ac_file =~ /:/) {
push @unhandled, $ac_file;
next;
}
$ac_file_in = "$ac_given_srcdir/$ac_file.in";
$ac_dir = dirname($ac_file);
if ($ac_dir eq '.') {
$ac_dir_suffix = '';
$ac_dots = '';
} else {
$ac_dir_suffix = "/$ac_dir";
$ac_dir_suffix =~ s%^/\./%/%;
$ac_dots = $ac_dir_suffix;
$ac_dots =~ s%/[^/]*%../%g;
}
if ($ac_given_srcdir eq '.') {
$srcdir = '.';
if ($ac_dots eq '') {
$top_srcdir = '.'
} else {
$top_srcdir = $ac_dots;
$top_srcdir =~ s%/$%%;
}
} elsif ($ac_given_srcdir =~ m%^/%) {
$srcdir = "$ac_given_srcdir$ac_dir_suffix";
$top_srcdir = "$ac_given_srcdir";
} else {
$srcdir = "$ac_dots$ac_given_srcdir$ac_dir_suffix";
$top_srcdir = "$ac_dots$ac_given_srcdir";
}
# mkdir $subdir, 0777 if not -d $subdir;
print STDERR "creating $ac_file\n";
open (INFILE, "<$ac_file_in")
or ( warn "can't read $ac_file_in: No such file or directory\n" and next);
open (OUTFILE, ">$ac_file")
or ( warn "Unable to create $ac_file\n" and next);
while (<INFILE>) {
if (/\@[_a-zA-Z]*\@.*\@[_a-zA-Z]*\@/) {
#warn "Two defines on a line:$ac_file:$.:$_";
push @unhandled, $ac_file;
last;
}
s/\@srcdir\@/$srcdir/;
s/\@top_srcdir\@/$top_srcdir/;
if (/\@[_a-zA-Z]*\@/) {
#warn "Unknown variable:$ac_file:$.:$_";
push @unhandled, $ac_file;
last;
}
print OUTFILE;
}
close INFILE;
close OUTFILE;
}
# Print the shell command to be evaluated by configure.
#
print "CONFIG_FILES=\"".join(' ', @unhandled)."\"; export CONFIG_FILES\n";