911cd4046d
Patch By Max Kanat-Alexander <mkanat@bugzilla.org> (module owner) a=myk git-svn-id: svn://10.0.0.236/trunk@205080 18797224-902f-48f8-a5cc-f745e15eee43
566 lines
17 KiB
Perl
566 lines
17 KiB
Perl
# -*- Mode: perl; indent-tabs-mode: nil -*-
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#
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# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Bug Tracking System.
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#
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# Contributor(s): Max Kanat-Alexander <mkanat@bugzilla.org>
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package Bugzilla::Install::Requirements;
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# NOTE: This package MUST NOT "use" any Bugzilla modules other than
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# Bugzilla::Constants, anywhere. We may "use" standard perl modules.
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#
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# Subroutines may "require" and "import" from modules, but they
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# MUST NOT "use."
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use strict;
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use base qw(Exporter);
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our @EXPORT = qw(
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REQUIRED_MODULES
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OPTIONAL_MODULES
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MOD_PERL_MODULES
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check_requirements
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have_vers
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vers_cmp
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);
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our @EXPORT_OK = qw(
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install_command
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);
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use Bugzilla::Constants;
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use constant REQUIRED_MODULES => [
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{
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name => 'AppConfig',
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version => '1.52'
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},
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{
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name => 'CGI',
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version => '2.93'
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},
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{
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name => 'Data::Dumper',
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version => '0'
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},
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{
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name => 'Date::Format',
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version => '2.21'
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},
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{
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name => 'DBI',
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version => '1.41'
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},
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{
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name => 'File::Spec',
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version => '0.84'
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},
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{
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name => 'File::Temp',
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version => '0'
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},
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{
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name => 'Template',
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version => '2.08'
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},
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{
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name => 'Text::Wrap',
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version => '2001.0131'
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},
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{
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name => 'Mail::Mailer',
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version => '1.67'
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},
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{
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name => 'MIME::Base64',
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version => '3.01'
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},
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{
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# MIME::Parser is packaged as MIME::Tools on ActiveState Perl
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name => $^O =~ /MSWin32/i ? 'MIME::Tools' : 'MIME::Parser',
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version => '5.406'
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},
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{
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name => 'Storable',
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version => '0'
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},
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];
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use constant OPTIONAL_MODULES => [
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{
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name => 'GD',
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version => '1.20'
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},
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{
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# This module tells us whether or not Template-GD is installed
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# on Template-Toolkits after 2.14, and still works with 2.14 and lower.
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name => 'Template::Plugin::GD::Image',
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version => 0
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},
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{
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name => 'Chart::Base',
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version => '1.0'
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},
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{
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name => 'GD::Graph',
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version => 0
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},
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{
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name => 'GD::Text::Align',
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version => 0
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},
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{
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name => 'XML::Twig',
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version => 0
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},
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{
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name => 'LWP::UserAgent',
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version => 0
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},
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{
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name => 'PatchReader',
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version => '0.9.4'
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},
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{
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name => 'Image::Magick',
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version => 0
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},
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{
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name => 'Net::LDAP',
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version => 0
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},
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];
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# These are only required if you want to use Bugzilla with
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# mod_perl.
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use constant MOD_PERL_MODULES => [
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{
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name => 'mod_perl2',
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version => '1.999022'
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},
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# Even very new releases of perl (5.8.5) don't come with this version,
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# so I didn't want to make it a general requirement just for
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# running under mod_cgi.
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{
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name => 'CGI',
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version => '3.11'
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},
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{
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name => 'Apache::DBI',
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version => '0.96'
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},
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];
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# Remember that you only have to add modules to this hash if their
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# names are significantly different on ActiveState than on normal perl.
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# If it's just a difference between "::" and "-" in the name, don't worry
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# about it--install_command() handles that automatically.
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use constant WIN32_MODULE_NAMES => {
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'Chart::Base' => 'Chart',
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'Date::Format' => 'TimeDate',
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'Template' => 'Template-Toolkit',
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'GD::Graph' => 'GDGraph',
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'GD::Text::Align' => 'GDTextUtil',
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'Mail::Mailer' => 'MailTools',
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# We provide Template 2.14 or lower for Win32, so it still includes
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# the GD plugin.
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'Template::Plugin::GD' => 'Template',
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};
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sub check_requirements {
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my ($output) = @_;
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print "\nChecking perl modules...\n" if $output;
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my $modules = REQUIRED_MODULES;
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my $root = ROOT_USER;
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my %missing;
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foreach my $module (@{$modules}) {
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unless (have_vers($module->{name}, $module->{version}, $output)) {
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$missing{$module->{name}} = $module->{version};
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}
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}
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print "\nYou need one of the following DBD modules installed, depending",
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" on\nwhich database you are using with Bugzilla:\n" if $output;
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my $have_one_dbd = 0;
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my $db_modules = DB_MODULE;
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foreach my $db (keys %$db_modules) {
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if (have_vers($db_modules->{$db}->{dbd},
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$db_modules->{$db}->{dbd_version}, $output))
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{
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$have_one_dbd = 1;
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}
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}
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print "\nThe following Perl modules are optional:\n" if $output;
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my $opt_modules = OPTIONAL_MODULES;
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my %have_mod;
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foreach my $module (@$opt_modules) {
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$have_mod{$module->{name}} =
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have_vers($module->{name}, $module->{version}, $output);
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}
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print "\nThe following modules are required for mod_perl support:\n"
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if $output;
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my $mp_modules = MOD_PERL_MODULES;
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foreach my $module (@$mp_modules) {
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$have_mod{$module->{name}} =
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have_vers($module->{name}, $module->{version}, $output);
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}
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# If we're running on Windows, reset the input line terminator so that
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# console input works properly - loading CGI tends to mess it up
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$/ = "\015\012" if ON_WINDOWS;
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if ($output) {
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print "\n";
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if ($^O =~ /MSWin32/i) {
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print "All the required modules are available at:\n",
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" http://landfill.bugzilla.org/ppm/\n",
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"You can add the repository with the following command:\n",
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" ppm rep add bugzilla http://landfill.bugzilla.org/ppm/",
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"\n\n";
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}
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# New/Old Charts
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if ((!$have_mod{'GD'} || !$have_mod{'Chart::Base'})) {
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print "If you you want to see graphical bug charts (plotting",
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" historical data over \ntime), you should install libgd",
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" and the following Perl modules (as $root):\n\n";
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print " GD: " . install_command("GD") ."\n"
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if !$have_mod{'GD'};
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print " Chart: " . install_command("Chart::Base") . "\n"
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if !$have_mod{'Chart::Base'};
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print "\n";
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}
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# Bug Import/Export
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if (!$have_mod{'XML::Twig'}) {
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print "If you want to use the bug import/export feature to move",
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" bugs to or from\nother bugzilla installations, you will",
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" need to install the XML::Twig\nmodule by running",
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" (as $root):\n\n",
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" " . install_command("XML::Twig") . "\n\n";
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}
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# Automatic Updates
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if (!$have_mod{'LWP::UserAgent'}) {
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print "If you want to use the automatic update notification",
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" feature you will\nneed to install the LWP::UserAgent",
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" module by running (as $root):\n\n",
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" " . install_command("LWP::UserAgent") . "\n\n";
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}
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# BMP to PNG
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if (!$have_mod{'Image::Magick'}) {
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print "If you want to convert BMP image attachments to PNG to",
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" conserve\ndisk space, you will need to install the",
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" ImageMagick application\nAvailable from",
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" http://www.imagemagick.org, and the Image::Magick\n",
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"Perl module by running (as $root):\n\n",
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" " . install_command("Image::Magick") . "\n\n";
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}
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# Graphical Reports
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if (!$have_mod{'GD'} || !$have_mod{'GD::Graph'}
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|| !$have_mod{'GD::Text::Align'}
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|| !$have_mod{'Template::Plugin::GD::Image'})
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{
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print "If you want to see graphical bug reports (bar, pie and",
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" line charts of \ncurrent data), you should install libgd",
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" and the following Perl modules:\n\n";
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print " GD: " . install_command("GD") . "\n"
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if !$have_mod{'GD'};
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print " GD::Graph: " . install_command("GD::Graph") . "\n"
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if !$have_mod{'GD::Graph'};
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print " GD::Text::Align: " . install_command("GD::Text::Align")
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. "\n" if !$have_mod{'GD::Text::Align'};
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print " Template::Plugin::GD: "
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. install_command('Template::Plugin::GD') . "\n"
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if !$have_mod{'Template::Plugin::GD::Image'};
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print "\n";
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}
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# Diff View
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if (!$have_mod{'PatchReader'}) {
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print "If you want to see pretty HTML views of patches, you",
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" should install the \nPatchReader module by running",
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" (as $root):\n\n",
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" " . install_command("PatchReader") . "\n\n";
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}
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# LDAP
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if (!$have_mod{'Net::LDAP'}) {
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print "If you wish to use LDAP authentication, then you must",
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" install Net::LDAP\nby running (as $root):\n\n",
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" " . install_command('Net::LDAP') . "\n\n";
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}
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# mod_perl
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if (!$have_mod{'mod_perl2'}) {
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print "If you would like mod_perl support, you must install at",
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" least the minimum\nrequired version of mod_perl. You",
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" can download mod_perl from:\n",
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" http://perl.apache.org/download/binaries.html\n",
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"Make sure that you get the 2.0 version, not the 1.0",
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" version.\n\n";
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}
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if (!$have_mod{'Apache::DBI'} || !$have_mod{'CGI'}) {
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print "For mod_perl support, you must install the following",
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" perl module(s):\n\n";
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print " Apache::DBI: " . install_command('Apache::DBI') . "\n"
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if !$have_mod{'Apache::DBI'};
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print " CGI: " . install_command('CGI') . "\n"
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if !$have_mod{'CGI'};
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print "\n";
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}
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}
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if (!$have_one_dbd) {
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print "\n";
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print "Bugzilla requires that at least one DBD module be",
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" installed in order to\naccess a database. You can install",
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" the correct one by running (as $root) the\ncommand listed",
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" below for your database:\n\n";
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foreach my $db (keys %$db_modules) {
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print $db_modules->{$db}->{name} . ": "
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. install_command($db_modules->{$db}->{dbd}) . "\n";
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print " Minimum version required: "
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. $db_modules->{$db}->{dbd_version} . "\n";
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}
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print "\n";
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}
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if (%missing) {
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print "\n";
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print "Bugzilla requires some Perl modules which are either",
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" missing from your\nsystem, or the version on your system",
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" is too old. They can be installed\nby running (as $root)",
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" the following:\n";
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foreach my $module (keys %missing) {
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print " " . install_command("$module") . "\n";
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if ($missing{$module} > 0) {
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print " Minimum version required: $missing{$module}\n";
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}
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}
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print "\n";
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}
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return {
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pass => !scalar(keys %missing) && $have_one_dbd,
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missing => \%missing,
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optional => \%have_mod,
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}
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}
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# This was originally clipped from the libnet Makefile.PL, adapted here to
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# use the below vers_cmp routine for accurate version checking.
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sub have_vers {
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my ($pkg, $wanted, $output) = @_;
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my ($msg, $vnum, $vstr);
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no strict 'refs';
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printf("Checking for %15s %-9s ", $pkg, !$wanted?'(any)':"(v$wanted)")
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if $output;
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# Modules may change $SIG{__DIE__} and $SIG{__WARN__}, so localise them here
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# so that later errors display 'normally'
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local $::SIG{__DIE__};
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local $::SIG{__WARN__};
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eval "require $pkg;";
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# do this twice to avoid a "used only once" error for these vars
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$vnum = ${"${pkg}::VERSION"} || ${"${pkg}::Version"} || 0;
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$vnum = ${"${pkg}::VERSION"} || ${"${pkg}::Version"} || 0;
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$vnum = -1 if $@;
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# CGI's versioning scheme went 2.75, 2.751, 2.752, 2.753, 2.76
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# That breaks the standard version tests, so we need to manually correct
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# the version
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if ($pkg eq 'CGI' && $vnum =~ /(2\.7\d)(\d+)/) {
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$vnum = $1 . "." . $2;
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}
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if ($vnum eq "-1") { # string compare just in case it's non-numeric
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$vstr = "not found";
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}
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elsif (vers_cmp($vnum,"0") > -1) {
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$vstr = "found v$vnum";
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}
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else {
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$vstr = "found unknown version";
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}
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my $vok = (vers_cmp($vnum,$wanted) > -1);
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print ((($vok) ? "ok: " : " "), "$vstr\n") if $output;
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return $vok ? 1 : 0;
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}
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# This is taken straight from Sort::Versions 1.5, which is not included
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# with perl by default.
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sub vers_cmp {
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my ($a, $b) = @_;
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# Remove leading zeroes - Bug 344661
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$a =~ s/^0*(\d.+)/$1/;
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$b =~ s/^0*(\d.+)/$1/;
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my @A = ($a =~ /([-.]|\d+|[^-.\d]+)/g);
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my @B = ($b =~ /([-.]|\d+|[^-.\d]+)/g);
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my ($A, $B);
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while (@A and @B) {
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$A = shift @A;
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$B = shift @B;
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if ($A eq '-' and $B eq '-') {
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next;
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} elsif ( $A eq '-' ) {
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return -1;
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} elsif ( $B eq '-') {
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return 1;
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} elsif ($A eq '.' and $B eq '.') {
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next;
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} elsif ( $A eq '.' ) {
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return -1;
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} elsif ( $B eq '.' ) {
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return 1;
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} elsif ($A =~ /^\d+$/ and $B =~ /^\d+$/) {
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if ($A =~ /^0/ || $B =~ /^0/) {
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return $A cmp $B if $A cmp $B;
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} else {
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return $A <=> $B if $A <=> $B;
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}
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} else {
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$A = uc $A;
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$B = uc $B;
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return $A cmp $B if $A cmp $B;
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}
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}
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@A <=> @B;
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}
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sub install_command {
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my $module = shift;
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if ($^O =~ /MSWin32/i) {
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return "ppm install " . WIN32_MODULE_NAMES->{$module} if
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WIN32_MODULE_NAMES->{$module};
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$module =~ s/::/-/g;
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return "ppm install " . $module;
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} else {
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return "$^X -MCPAN -e 'install \"$module\"'";
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}
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}
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1;
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__END__
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=head1 NAME
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Bugzilla::Install::Requirements - Functions and variables dealing
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with Bugzilla's perl-module requirements.
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=head1 DESCRIPTION
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This module is used primarily by C<checksetup.pl> to determine whether
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or not all of Bugzilla's prerequisites are installed. (That is, all the
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perl modules it requires.)
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=head1 CONSTANTS
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=over 4
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=item C<REQUIRED_MODULES>
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An arrayref of hashrefs that describes the perl modules required by
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Bugzilla. The hashes have two keys, C<name> and C<version>, which
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represent the name of the module and the version that we require.
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=back
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=head1 SUBROUTINES
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|
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=over 4
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=item C<check_requirements($output)>
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Description: This checks what optional or required perl modules
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are installed, like C<checksetup.pl> does.
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|
Params: C<$output> - C<true> if you want the function to print
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out information about what it's doing,
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and the versions of everything installed.
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|
If you don't pass the minimum requirements,
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the will always print out something,
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regardless of this parameter.
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|
Returns: A hashref containing three values:
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C<pass> - Whether or not we have all the mandatory
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requirements.
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|
C<missing> - A hash showing which mandatory requirements
|
|
are missing. The key is the module name,
|
|
and the value is the version we require.
|
|
C<optional> - Which optional modules are installed and
|
|
up-to-date enough for Bugzilla.
|
|
|
|
=item C<vers_cmp($a, $b)>
|
|
|
|
Description: This is a comparison function, like you would use in
|
|
C<sort>, except that it compares two version numbers.
|
|
It's actually identical to versioncmp from
|
|
L<Sort::Versions>.
|
|
|
|
Params: c<$a> and C<$b> are versions you want to compare.
|
|
|
|
Returns: -1 if $a is less than $b, 0 if they are equal, and
|
|
1 if $a is greater than $b.
|
|
|
|
=item C<have_vers($pkg, $wanted, $output)>
|
|
|
|
Description: Tells you whether or not you have the appropriate
|
|
version of the module requested. It also prints
|
|
out a message to the user explaining the check
|
|
and the result.
|
|
|
|
Params: C<$pkg> - A string, the name of the package you're checking.
|
|
C<$wanted> - The version of the package you require.
|
|
Set this to 0 if you don't require any
|
|
particular version.
|
|
C<$output> - Set to true if you want this function to
|
|
print information to STDOUT about what it's
|
|
doing.
|
|
|
|
Returns: C<1> if you have the module installed and you have the
|
|
appropriate version. C<0> otherwise.
|
|
|
|
=item C<install_command($module)>
|
|
|
|
Description: Prints out the appropriate command to install the
|
|
module specified, depending on whether you're
|
|
on Windows or Linux.
|
|
|
|
Params: C<$module> - The name of the module.
|
|
|
|
Returns: nothing
|
|
|
|
=back
|