RetroZilla/xpinstall/packager/xptlink.pl

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2015-10-21 05:03:22 +02:00
#!/usr/bin/perl -w
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (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.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is Mozilla Communicator client code, released
# March 31, 1998.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 1998-1999
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Jonathan Granrose (granrose@netscape.com)
# Jean-Jacques Enser (jj@netscape.com)
#
# Alternatively, the contents of this file may be used under the terms of
# either of the GNU General Public License Version 2 or later (the "GPL"),
# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
# xptlink.pl -
#
# traverse directories created by pkgcp.pl and merge multiple .xpt files into
# a single .xpt file to improve startup performance.
#
use Getopt::Long;
# initialize variables
$srcdir = ""; # root directory being copied from
$destdir = ""; # root directory being copied to
$finaldir = ""; # where to put the final linked XPT
$verbose = 0; # shorthand for --debug 1
$debug = 0; # controls amount of debug output
$help = 0; # flag: if set, print usage
# get command line options
$return = GetOptions( "source|s=s", \$srcdir,
"destination|d=s", \$destdir,
"final|f=s", \$finaldir,
"help|h", \$help,
"debug=i", \$debug,
"verbose|v", \$verbose,
"<>", \&do_badargument
);
if ($finaldir ne "") {
$bindir = "";
}
else {
$bindir = "bin/";
}
# remove extra slashes from $destdir
$destdir =~ s:/+:/:g;
# set debug level
if ($verbose && !($debug)) {
$debug = 1;
} elsif ($debug != 0) {
$debug = abs ($debug);
($debug >= 2) && print "debug level: $debug\n";
}
# check usage
if (! $return)
{
die "Error: couldn't parse command line options. See \'$0 --help' for options.\nExiting...\n";
} else {
check_arguments();
}
$xptdirs = (); # directories in the destination directory
($debug >= 1) && print "\nLinking .xpt files...\n";
($debug >= 2) && print "do_xptlink():\n";
# get list of directories on which to run xptlink
opendir (DESTDIR, "$destdir") ||
die "Error: could not open directory $destdir. Exiting...\n";
@xptdirs = sort ( grep (!/^\./, readdir (DESTDIR) ) );
($debug >= 4) && print "xptdirs: @xptdirs\n";
closedir (DESTDIR);
foreach my $component (@xptdirs) {
($debug >= 1) && print "[$component]\n";
print ("Checking for '$destdir/$component/$bindir"."components'\n") if $debug >= 3;
if (-d "$destdir/$component/$bindir"."components") {
warn "File '$destdir/$component/$bindir"."components/$component.xpt' already exists."
if -f "$destdir/$component/$bindir"."components/$component.xpt";
# create list of .xpt files in cwd
my @xptfiles;
($debug >= 4) && print "opendir: $destdir/$component/$bindir"."components\n";
opendir (COMPDIR, "$destdir/$component/$bindir"."components") ||
die "Error: cannot open $destdir/$component/$bindir"."components. Exiting...\n";
($debug >= 3) && print "Creating list of .xpt files...\n";
my @files = sort ( grep (!/^\./, readdir (COMPDIR)));
foreach my $file (@files) {
($debug >= 6) && print "$file\n";
if ( $file =~ /\.xpt$/ ) {
push @xptfiles, "$destdir/$component/$bindir"."components/$file";
($debug >= 8) && print "xptfiles:\t@xptfiles\n";
}
}
closedir (COMPDIR);
# merge .xpt files into one if we found any in the dir
if ( scalar(@xptfiles) ) {
my ($merged, $fmerged);
if ($finaldir ne "") {
$merged = "$finaldir/$component.xpt";
}
else {
$fmerged = "$destdir/$component/$bindir"."components/$component.xpt";
$merged = $fmerged.".new";
}
my @realxptfiles;
my $realmerged;
if ($^O eq "cygwin") {
@realxptfiles = map {my $file = `cygpath -t mixed $_`;
chomp $file;
$file} @xptfiles;
$realmerged = `cygpath -t mixed $merged`;
chomp $realmerged;
}
else {
@realxptfiles = @xptfiles;
$realmerged = $merged;
}
my $cmdline = "$srcdir/bin/xpt_link $realmerged @realxptfiles";
($debug >= 4) && print "$cmdline\n";
system($cmdline) == 0 || die ("'$cmdline' failed");
if ($finaldir eq "") {
# remove old .xpt files in the component directory.
($debug >= 2) && print "Deleting individual xpt files.\n";
for my $file (@xptfiles) {
($debug >= 4) && print "\t$file";
unlink ($file) ||
die "Couldn't unlink file $file.\n";
($debug >= 4) && print "\t\tdeleted\n\n";
}
($debug >= 2) && print "Renaming $merged as $fmerged\n";
rename ($merged, $fmerged) ||
die "Rename of '$merged' to '$fmerged' failed.\n";
}
}
}
}
($debug >= 1) && print "Linking .xpt files completed.\n";
exit (0);
#
# Check that arguments to script are valid.
#
sub check_arguments
{
my ($exitval) = 0;
($debug >= 2) && print "check_arguments():\n";
# if --help print usage
if ($help) {
print_usage();
exit (1);
}
# make sure required variables are set:
# check source directory
if ( $srcdir eq "" ) {
print "Error: source directory (--source) not specified.\n";
$exitval += 8;
} elsif ((! -d $srcdir) || (! -r $srcdir)) {
print "Error: source directory \"$srcdir\" is not a directory or is unreadable.\n";
$exitval = 1;
}
# check directory
if ( $destdir eq "" ) {
print "Error: destination directory (--destdir) not specified.\n";
$exitval += 8;
} elsif ((! -d $destdir) || (! -w $destdir)) {
print "Error: destination directory \"$destdir\" is not a directory or is not writeable.\n";
$exitval += 2;
}
if ($exitval) {
print "See \'$0 --help\' for more information.\n";
print "Exiting...\n";
exit ($exitval);
}
}
#
# This is called by GetOptions when there are extra command line arguments
# it doesn't understand.
#
sub do_badargument
{
warn "Warning: unknown command line option specified: @_.\n";
}
#
# display usage information
#
sub print_usage
{
($debug >= 2) && print "print_usage():\n";
print <<EOC
$0
Traverse component directory specified and merge multiple existing
.xpt files into single new .xpt files for improved startup time.
Options:
-s, --source <directory>
Specifies the directory from which the component files were
copied. Typically, this will be the same directory used by
pkgcp.pl.
Required.
-d, --destination <directory>
Specifies the directory in which the component directories are
located. Typically, this will be the same directory used by
pkgcp.pl.
Required.
-o, --os [dos|unix]
Specifies which type of system this is. Used for setting path
delimiters correctly.
Required.
-h, --help
Prints this information.
Optional.
--debug [1-10]
Controls verbosity of debugging output, 10 being most verbose.
1 : same as --verbose.
2 : includes function calls.
3 : includes source and destination for each copy.
Optional.
-v, --verbose
Print component names and files copied/deleted.
Optional.
e.g.
$0 --os unix -source /builds/mozilla/dist --destination /h/lithium/install --os unix --verbose
Note: options can be specified by either a leading '--' or '-'.
EOC
}
# EOF