зеркало из https://github.com/mozilla/gecko-dev.git
445 строки
11 KiB
Perl
Executable File
445 строки
11 KiB
Perl
Executable File
#!/usr/bin/env perl
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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##----------------------------##
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##---] CORE/CPAN INCLUDES [---##
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##----------------------------##
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use strict;
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use warnings;
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use Getopt::Long;
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use Benchmark;
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use Cwd;
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use File::Basename;
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use File::Copy;
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use File::Path qw{mkpath};
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##-------------------##
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##---] EXPORTS [---##
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##-------------------##
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our $VERSION = qw(2.0);
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##--------------------##
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##---] INCLUDES [---##
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##--------------------##
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##############################################################
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# pymake: special case path handling for windows cmd shell.
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# if invoked by cmd.exe and msys-perl is in play
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# $0 may contain a drive letter
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# modules use-or-expect msys/unix paths
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# adjust $0 => C:/foo => /c/foo so string tests and
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# manipulation can by applied properly.
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##############################################################
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sub BEGIN
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{
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if ($^O eq 'msys' && $ENV{PATH} =~ m!\w:/!)
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{
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$0 =~ s!^(\w):!/$1!;
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}
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eval 'use FindBin';
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die $@ if ($@);
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}
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use lib $FindBin::Bin;
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use makemakefile;
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##-------------------##
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##---] GLOBALS [---##
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##-------------------##
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my %argv;
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my $t0 = Benchmark->new();
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sub END
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{
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if ($argv{bench})
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{
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my $t1 = Benchmark->new();
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my $delta = timediff($t1, $t0);
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print STDERR timestr($delta), "\n";
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}
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}
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##----------------##
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##---] MAIN [---##
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##----------------##
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umask 0;
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my $debug = $argv{debug} || 0;
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my $pwdcmd = ($^O eq 'msys') ? 'pwd -W' : 'pwd';
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# Determine various tree path variables
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#
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my ($topsrcdir, $ptopsrcdir, $depth, @makefiles) = parse_arguments(@ARGV);
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my $object_fullpath = `$pwdcmd`; # Cwd::getcwd()
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chdir $depth;
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my $object_root = `$pwdcmd`; # Cwd::getcwd()
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chomp $object_fullpath;
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chomp $object_root;
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# $source_subdir is the path from the object root to where
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# 'make-makefile' was called. For example, if make-makefile was
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# called from "mozilla/gfx/src", then $source_subdir would be
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# "gfx/src/".
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my $source_subdir = "$object_fullpath/";
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my $quoted_object_root = quotemeta($object_root);
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$source_subdir =~ s|^$quoted_object_root/||;
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# Prefix makefiles with $source_subdir so that paths
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# will be relative to the top of the object tree.
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#
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my $makefile;
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for $makefile (@makefiles) { # dead code ?
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$makefile = "$source_subdir$makefile";
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}
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# Find the path to the source directory based on how 'make-makefile'
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# was invoked. The path is either relative to the object directory
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# or an absolute path.
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my $given_srcdir = find_srcdir($topsrcdir, $depth);
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my $pgiven_srcdir = find_srcdir($ptopsrcdir, $depth);
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if ($debug) {
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warn "object_fullpath = $object_fullpath\n";
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warn "object_root = $object_root\n";
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warn "source_subdir = $source_subdir\n";
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warn "makefiles = @makefiles\n";
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warn "given_srcdir = $given_srcdir\n";
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}
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my @errors;
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my @unhandled = update_makefiles_legacy($given_srcdir, $pgiven_srcdir, @makefiles);
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push(@errors, $@) if ($@);
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run_config_status(@unhandled);
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push(@errors, $@) if ($@ && $argv{'no-warnings'});
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exit scalar(@errors);
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# end of Main
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############################################################
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###########################################################################
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# find_depth: Pull the value of DEPTH out of a Makefile (or Makefile.in)
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###########################################################################
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sub find_depth {
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my $depth = '';
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open(MAKEFILE, "<$_[0]") || die "Unable to open $_[0]: $!\n";
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while (<MAKEFILE>) {
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next unless /^DEPTH\s*=\s*(\..*)/;
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$depth = $1;
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last;
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}
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close MAKEFILE;
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return $depth;
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}
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###########################################################################
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## Intent: Parse command line arguments and assign values
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###########################################################################
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sub parse_arguments {
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my @args = @_;
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my @makefiles = ();
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my @arglist = qw(badtokens! bench
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chdir=s
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debug
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depth|d=s
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enhanced
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obj=s top|t=s ptop|p=s
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src=s dst=s
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);
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unless(GetOptions(\%argv, @arglist))
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{
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my $script = join('/', $FindBin::RealBin, $FindBin::Script);
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system("perldoc $script </dev/null");
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exit
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}
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@args = @ARGV;
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my $topsrcdir = $argv{top} || '';
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if (! $topsrcdir)
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{
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$topsrcdir = $argv{top} = getTopDir();
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}
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my $ptopsrcdir ||= $argv{ptop} || $topsrcdir || '';
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## Init --no- switch values
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foreach my $var (qw(badtokens exclusions warnings))
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{
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$argv{"no-${var}"} = $argv{$var} || 0;
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}
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# Propogate parsed arguments for module use [--debug, --verbose]
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while (my($k, $v) = each %argv)
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{
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$main::argv{$k} = $v;
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}
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if ($argv{chdir})
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{
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chdir $argv{chdir} || die "chdir $argv{chdir} failed: $!";
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}
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##############################################################
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## Arguments allowing make-makefile to be invoked from $topsrc
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##############################################################
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if (!$argv{top} || !$argv{obj})
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{
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}
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## Limit access to container makefiles for now
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elsif ($argv{enhanced})
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{
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my @errors;
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## iterate over @ARGV to preserve original filename for 'unhandled'
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my @files = map{ getRelPath($_) } @ARGV;
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my $top = getTopDir();
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my $obj = getObjDir();
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mkdirr(map{ "$obj/$_" } @files);
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push(@errors, $@) if ($@); # legacy behavior: do not exit with status
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my $exclude = join('/', $FindBin::RealBin, $FindBin::Script);
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$exclude .= '.excl'; # $argv{exclude}
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my %exclude = getExclusions($exclude);
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my @unhandled;
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foreach my $relpath (@files)
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{
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my $rel = join('/', $relpath, 'Makefile.in');
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my $mf = join('/', $top, $rel);
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next if ($exclude{$rel});
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print STDERR " ** relpath=[$relpath], mf=[$mf]\n" if ($main::argv{debug});
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my $rc = updateMakefiles($relpath, {depth=>$depth, obj=>$obj, top=>$top});
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if ($@)
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{
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push(@errors, $@);
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}
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elsif ($rc eq 'badtokens')
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{
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push(@unhandled, $mf);
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}
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}
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run_config_status(@unhandled);
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push(@errors, $@) if ($@ && $argv{'no-warnings'});
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exit scalar(@errors);
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}
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my $depth = $argv{depth} || '';
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if (! $depth)
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{
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foreach my $fyl (@args)
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{
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if (my $tmp = find_depth($fyl))
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{
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$depth = $tmp;
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last;
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}
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}
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}
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if (! $depth) {
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# Use $(DEPTH) in the Makefile or Makefile.in to determine the depth
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if (-e "Makefile.in") {
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$depth = find_depth("Makefile.in");
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} elsif (-e "Makefile") {
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$depth = find_depth("Makefile");
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} elsif (-e "../Makefile") {
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$depth = "../".find_depth("../Makefile");
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$depth =~ s/\/\.$//;
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} else {
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warn "Unable to determine depth (e.g. ../..) to root of objdir tree.\n";
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die "No Makefile(.in) present. Try running with '-d <depth>'\n";
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}
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}
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# Build the list of makefiles to generate
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#
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@makefiles = ();
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while (@args)
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{
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next unless my $makefile = shift @args;
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$makefile =~ s/\.in$//;
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$makefile =~ s/\/$//;
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$makefile =~ /Makefile$/
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or $makefile =~ /^\.\//
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or $makefile .= "/Makefile";
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push @makefiles, "$makefile";
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}
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@makefiles = "Makefile" unless @makefiles;
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return ($topsrcdir, $ptopsrcdir, $depth, @makefiles);
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}
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# Find the top of the source directory
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# (Assuming that the executable is in $top_srcdir/build/autoconf)
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sub find_srcdir {
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my ($ac_given_srcdir, $depth) = @_;
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if ($debug) {
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print "ac_given_srcdir = $ac_given_srcdir\n";
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print "depth = $depth\n";
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}
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if ($ac_given_srcdir =~ /^\./ and $depth ne '.') {
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my $quoted_depth = quotemeta($depth);
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$ac_given_srcdir =~ s|^$quoted_depth/?||;
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}
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if ($debug) {
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print "ac_given_srcdir = $ac_given_srcdir\n";
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}
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$ac_given_srcdir = '.' if $ac_given_srcdir eq '';
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return $ac_given_srcdir;
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}
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1;
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###########################################################################
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## perldoc
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###########################################################################
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__END__
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=head1 NAME
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make-makefile - Generate a Makefile from a F<Makefile.in> template
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=head1 SYNOPSIS
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make-makefile [--top t] [--obj o] [--depth d] foo/bar/Makefile.in tans/fans/Makefile foo/bar
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=head1 DESCRIPTION
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Given options and makefile path arguments determine path to the template
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F<Makefile.in> beneath a source directory and path to generated F<Makefile>
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beneath $MOZ_OBJDIR. DEPTH from destination directory to the 'root' will
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also be determined. F<Makefile.in> will be read in, template strings of the
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gorm @token@ will be replaced with derived values and a generated makefile
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will be written out as F<Makefile>.
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Makefile DEPTH= can be determined in a few different ways:
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o The string C<DEPTH=../../..> may be embedded within F<Makefile.in>.
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o Search parent directories for F<Makefile.in> and use it to assign the child.
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=head2 Option List
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=over 4
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=item --chdir
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Move to this directory before doing anything else
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=item -d, --depth
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Explicitly specify the relative path from directory containing Makefile.in
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to the top sandbox directory. memory/makefile, DEPTH=../.., js/src/config, DEPTH=..
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=item --enhanced
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Use alternate/simplified path construction when options --top and --obj are
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passed. This feature will be used by container makefiles to support makefile
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generation while cd'd into the sandbox top directory.
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=item -t, --top
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Path the root of a development sandbox.
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=item --obj
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Path to object directory where generated makefile will be written ($MOZ_OBJDIR).
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=item --ptop
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Print top source dir
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=back
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=head2 Options List DEBUG
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=over 4
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=item --bench
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Enable script benchmarking, report elapsed runtime.
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=item --debug
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Enable script debug mode.
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=back
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=head2 Options List --NO-
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=over 4
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=item --no-badtokens (wip)
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Handle unexpanded @token@ makefile tokens as an error condition.
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Do not rely on system(config.status) to externally supply values.
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=item --no-excludes
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Ignore file entries on the exclusion list, generate everything.
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=item --no-warnings
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Warnings are handled as an error condition.
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=back
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=head2 Examples
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=over 4
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=item * make-makefile -t /mozilla/nightly -d . memory/mozalloc
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cd $MOZ_OBJDIR;
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--top and --depth are explicitly set for generting memory/mozalloc/Makefile.
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=item * make-makefile -t /mozilla/nightly -d ../../../.. html5lib_tree_construction/Makefile
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cd $MOZ_OBJDIR/parser/htmlparser/tests/mochitest
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--top and --depth are explicitly set for generting a makefile from within
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a subdirectory of $MOZ_OBJDIR
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=item * make-makefile --top /mozilla/nightly --obj /mozilla/nightly/obj memory/mozalloc
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With --top and --obj explicitly set generate $MOZ_OBJDIR/memory/mozalloc/Makefile
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while sitting in the sandbox root.
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=back
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=head2 Work In Progress
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=over 4
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=item --no-badtokens
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Fail on unexpanded @foo@ makefile tokens. Any tokens that can be expanded
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directly by make-makefile will avoid config.status shell overhead.
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=item Depth from delta(--obj, --top)
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If DEPTH= has not been embedded within a makefile the value could
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be set directly if --top and --obj are specified and the paths overlap.
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=back
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=head1 SEE ALSO
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L<config/rules.mk>
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=cut
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