Apache-Reload-0.14/0000755000104006017510000000000014463674057014755 5ustar AdministratorssteveApache-Reload-0.14/Changes0000644060175106017510000000327214463674057014416 0ustar stevesteve=head1 NAME Changes - Apache::Reload change logfile =head1 CHANGES =over 1 =item 0.14 August 06, 2023 Fix unnecessary FAIL reports on CPAN Testers by checking for mod_perl or mod_perl2. [Andreas Koenig , CPAN RT#34316; Steve Hay] Fix spelling error. [, CPAN RT#127004] Fix Makefile.PL when Apache::Test is not present. [Nigel Gregoire, CPAN RT#113778] =item 0.13 May 09, 2015 Fix reload.t. Reported in CPAN RT#96656. [Steve Hay] =item 0.12 March 31, 2012 Set the -apxs argument correctly when building from mod_perl. [Steve Hay] Doc spelling fix [Nicholas Bamber] Add Apache-Test 1.34 dependency. [Phred] =item 0.11 August 21, 2010 Ignore require-hooks which exist in %INC [Ryan Gies ] Reloads by file, not module name [Ryan Gies ] Add a no Apache::Reload directive which skips reloading for modules that have it included (useful for Moose compatibility). [Graham Barr, ] Add Empty NOTICE file http://rt.cpan.org/Ticket/Display.html?id=34786 [Niko Tyni (Debian Perl Group) ] =item 0.10 February 25, 2008 Add make disttest procedure to RELEASE document - fred Check for Apache::Test version 1.30, needed to run tests - fred Apache::Reload and Apache2::Reload bundled for CPAN release This release incorporates unreleased changes in 0.08 and 0.09 [Fred Moyer ] =item 0.09 Apache2::Reload was part of mod_perl2 core in this version =item 0.08 Remove modified modules before reloading them [Javier Ureuen Val] Imported from v0.07 into ASF SVN [Philip M. Gollucci ] Matt Sergeant has donated Apache-Reload to the ASF. =back Apache-Reload-0.14/lib/0000755000104006017510000000000014463674054015520 5ustar AdministratorssteveApache-Reload-0.14/lib/Apache/0000755000104006017510000000000014463674057016704 5ustar AdministratorssteveApache-Reload-0.14/lib/Apache/Reload.pm0000644060175106017510000002041514463674057016614 0ustar stevesteve# Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You 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. package Apache::Reload; use strict; $Apache::Reload::VERSION = '0.14'; use vars qw(%INCS %Stat $TouchTime %UndefFields %Ignore); %Stat = ($INC{"Apache/Reload.pm"} => time); $TouchTime = time; sub import { my $class = shift; my ($package,$file) = (caller)[0,1]; $class->register_module($package, $file); } sub unimport { my $class = shift; my ($package,$file) = (caller)[0,1]; $class->unregister_module($package, $file); } sub package_to_module { my $package = shift; $package =~ s/::/\//g; $package .= ".pm"; return $package; } sub register_module { my ($class, $package, $file) = @_; my $module = package_to_module($package); if ($file) { $INCS{$module} = $file; } else { $file = $INC{$module}; return unless $file; $INCS{$module} = $file; } no strict 'refs'; if (%{"${package}::FIELDS"}) { $UndefFields{$module} = "${package}::FIELDS"; } } sub unregister_module { my ($class, $package, $file) = @_; my $module = package_to_module($package); $Ignore{$module} = 1; } sub handler { my $r = shift; my $DEBUG = ref($r) && (lc($r->dir_config("ReloadDebug") || '') eq 'on'); my $TouchFile = ref($r) && $r->dir_config("ReloadTouchFile"); my $TouchModules; if ($TouchFile) { warn "Checking mtime of $TouchFile\n" if $DEBUG; my $touch_mtime = (stat($TouchFile))[9] || return 1; return 1 unless $touch_mtime > $TouchTime; $TouchTime = $touch_mtime; my $sym = Apache->gensym; open($sym, $TouchFile) || die "Can't open '$TouchFile': $!"; $TouchModules = <$sym>; chomp $TouchModules; } if (ref($r) && (lc($r->dir_config("ReloadAll") || 'on') eq 'on')) { *Apache::Reload::INCS = \%INC; } else { *Apache::Reload::INCS = \%INCS; my $ExtraList = $TouchModules || (ref($r) && $r->dir_config("ReloadModules")) || ''; my @extra = split(/\s+/, $ExtraList); foreach (@extra) { if (/(.*)::\*$/) { my $prefix = $1; $prefix =~ s/::/\//g; foreach my $match (keys %INC) { if ($match =~ /^\Q$prefix\E/) { $Apache::Reload::INCS{$match} = $INC{$match}; my $package = $match; $package =~ s/\//::/g; $package =~ s/\.pm$//; no strict 'refs'; # warn "checking for FIELDS on $package\n"; if (%{"${package}::FIELDS"}) { # warn "found fields in $package\n"; $UndefFields{$match} = "${package}::FIELDS"; } } } } else { Apache::Reload->register_module($_); } } } my @changed; while (my($key, $file) = each %Apache::Reload::INCS) { local $^W; warn "Apache::Reload: Checking mtime of $key\n" if $DEBUG; my $mtime = (stat $file)[9]; unless (defined($mtime) && $mtime) { for (@INC) { $mtime = (stat "$_/$file")[9]; last if defined($mtime) && $mtime; } } warn("Apache::Reload: Can't locate $file\n"),next unless defined $mtime and $mtime; unless (defined $Stat{$file}) { $Stat{$file} = $^T; } # remove the modules if ($mtime > $Stat{$file}) { if ($Ignore{$key}) { warn "Apache::Reload: Not reloading $key\n"; } else { delete $INC{$key}; push @changed, $key; } } $Stat{$file} = $mtime; } # reload the modules foreach my $key (@changed) { warn("Reloading $key\n") if $DEBUG; if (my $symref = $UndefFields{$key}) { warn("undeffing fields\n") if $DEBUG; no strict 'refs'; undef %{$symref}; } require $key; warn("Apache::Reload: process $$ reloading $key\n") if $DEBUG; } return 1; } 1; __END__ =head1 NAME Apache::Reload - Reload changed modules =head1 SYNOPSIS In httpd.conf: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off Then your module: package My::Apache::Module; use Apache::Reload; sub handler { ... } 1; =head1 DESCRIPTION This module is two things. First it is an adaptation of Randal Schwartz's Stonehenge::Reload module that attempts to be a little more intuitive and makes the usage easier. Stonehenge::Reload was written by Randal to make specific modules reload themselves when they changed. Unlike Apache::StatINC, Stonehenge::Reload only checked the change time of modules that registered themselves with Stonehenge::Reload, thus reducing stat() calls. Apache::Reload also offers the exact same functionality as Apache::StatINC, and is thus designed to be a drop-in replacement. Apache::Reload only checks modules that register themselves with Apache::Reload if you explicitly turn off the StatINC emulation method (see below). Like Apache::StatINC, Apache::Reload must be installed as an Init Handler. =head2 StatINC Replacement To use as a StatINC replacement, simply add the following configuration to your httpd.conf: PerlInitHandler Apache::Reload =head2 Register Modules Implicitly To only reload modules that have registered with Apache::Reload, add the following to the httpd.conf: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off # ReloadAll defaults to On Then any modules with the line: use Apache::Reload; Will be reloaded when they change. =head2 Register Modules Explicitly You can also register modules explicitly in your httpd.conf file that you want to be reloaded on change: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off PerlSetVar ReloadModules "My::Foo My::Bar Foo::Bar::Test" Note that these are split on whitespace, but the module list B be in quotes, otherwise Apache tries to parse the parameter list. =head2 Un-Register Modules Explicitly If ReloadAll is set to On, then you can explicity force a module not to be reloaded with no Apache::Reload; A warning will appear in the error log that the file has changed, but will not be reloaded =head2 Special "Touch" File You can also set a file that you can touch() that causes the reloads to be performed. If you set this, and don't touch() the file, the reloads don't happen. This can be a great boon in a live environment: PerlSetVar ReloadTouchFile /tmp/reload_modules Now when you're happy with your changes, simply go to the command line and type: touch /tmp/reload_modules And your modules will be magically reloaded on the next request. This option works in both StatINC emulation mode and the registered modules mode. =head1 PSUEDOHASHES The short summary of this is: Don't use psuedohashes. Use an array with constant indexes. Its faster in the general case, its more guaranteed, and generally, it works. The long summary is that I've done some work to get this working with modules that use psuedo hashes, but its still broken in the case of a single module that contains multiple packages that all use psuedohashes. So don't do that. =head1 AUTHOR Matt Sergeant, matt@sergeant.org =head1 MAINTAINERS the mod_perl developers, dev@perl.apache.org =head1 SEE ALSO Apache::StatINC, Stonehenge::Reload =cut Apache-Reload-0.14/lib/Apache2/0000755000104006017510000000000014463674057016766 5ustar AdministratorssteveApache-Reload-0.14/lib/Apache2/Reload.pm0000644060175106017510000004347714463674057016713 0ustar stevesteve# Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You 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. # package Apache2::Reload; use strict; use warnings FATAL => 'all'; our $VERSION = '0.14'; use Apache2::Const -compile => qw(OK); use Apache2::Connection; use Apache2::ServerUtil; use Apache2::RequestUtil; use ModPerl::Util (); use vars qw(%INCS %Stat $TouchTime); %Stat = ($INC{"Apache2/Reload.pm"} => time); $TouchTime = time; sub import { my $class = shift; my ($package, $file) = (caller)[0,1]; $class->register_module($package, $file); } sub package_to_module { my $package = shift; $package =~ s/::/\//g; $package .= ".pm"; return $package; } sub module_to_package { my $module = shift; $module =~ s/\//::/g; $module =~ s/\.pm$//g; return $module; } sub register_module { my ($class, $package, $file) = @_; my $module = package_to_module($package); if ($file) { $INCS{$module} = $file; } else { $file = $INC{$module}; return unless $file; $INCS{$module} = $file; } } sub unregister_module { my ($class, $package) = @_; my $module = package_to_module($package); delete $INCS{$module}; } # the first argument is: # $c if invoked as 'PerlPreConnectionHandler' # $r if invoked as 'PerlInitHandler' sub handler { my $o = shift; $o = $o->base_server if ref($o) eq 'Apache2::Connection'; my $DEBUG = ref($o) && (lc($o->dir_config("ReloadDebug") || '') eq 'on'); my $ReloadByModuleName = ref($o) && (lc($o->dir_config("ReloadByModuleName") || '') eq 'on'); my $TouchFile = ref($o) && $o->dir_config("ReloadTouchFile"); my $ConstantRedefineWarnings = ref($o) && (lc($o->dir_config("ReloadConstantRedefineWarnings") || '') eq 'off') ? 0 : 1; my $TouchModules; if ($TouchFile) { warn "Checking mtime of $TouchFile\n" if $DEBUG; my $touch_mtime = (stat $TouchFile)[9] || return Apache2::Const::OK; return Apache2::Const::OK unless $touch_mtime > $TouchTime; $TouchTime = $touch_mtime; open my $fh, $TouchFile or die "Can't open '$TouchFile': $!"; $TouchModules = <$fh>; chomp $TouchModules if $TouchModules; } if (ref($o) && (lc($o->dir_config("ReloadAll") || 'on') eq 'on')) { *Apache2::Reload::INCS = \%INC; } else { *Apache2::Reload::INCS = \%INCS; my $ExtraList = $TouchModules || (ref($o) && $o->dir_config("ReloadModules")) || ''; my @extra = split /\s+/, $ExtraList; foreach (@extra) { if (/(.*)::\*$/) { my $prefix = $1; $prefix =~ s/::/\//g; foreach my $match (keys %INC) { if ($match =~ /^\Q$prefix\E/) { $Apache2::Reload::INCS{$match} = $INC{$match}; } } } else { Apache2::Reload->register_module($_); } } } my $ReloadDirs = ref($o) && $o->dir_config("ReloadDirectories"); my @watch_dirs = split(/\s+/, $ReloadDirs||''); my @changed; foreach my $key (sort { $a cmp $b } keys %Apache2::Reload::INCS) { my $file = $Apache2::Reload::INCS{$key}; next unless defined $file; next if ref $file; next if @watch_dirs && !grep { $file =~ /^$_/ } @watch_dirs; warn "Apache2::Reload: Checking mtime of $key\n" if $DEBUG; my $mtime = (stat $file)[9]; unless (defined($mtime) && $mtime) { for (@INC) { $mtime = (stat "$_/$file")[9]; last if defined($mtime) && $mtime; } } warn("Apache2::Reload: Can't locate $file\n"), next unless defined $mtime and $mtime; unless (defined $Stat{$file}) { $Stat{$file} = $^T; } if ($mtime > $Stat{$file}) { push @changed, [$key, $file]; } $Stat{$file} = $mtime; } #First, let's unload all changed modules foreach my $change (@changed) { my ($module, $file) = @$change; my $package = module_to_package($module); ModPerl::Util::unload_package($package); } #Then, let's reload them all, so that module dependencies can satisfy #themselves in the correct order. foreach my $change (@changed) { my ($module, $file) = @$change; my $name = $ReloadByModuleName ? $module : $file; require $name; if ($DEBUG) { my $package = module_to_package($module); warn sprintf("Apache2::Reload: process %d reloading %s from %s\n", $$, $package, $name); } } return Apache2::Const::OK; } 1; __END__ =head1 NAME Apache2::Reload - Reload Perl Modules when Changed on Disk =head1 Synopsis # Monitor and reload all modules in %INC: # httpd.conf: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload # when working with protocols and connection filters # PerlPreConnectionHandler Apache2::Reload # Reload groups of modules: # httpd.conf: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload PerlSetVar ReloadAll Off PerlSetVar ReloadModules "ModPerl::* Apache2::*" #PerlSetVar ReloadDebug On #PerlSetVar ReloadByModuleName On # Reload a single module from within itself: package My::Apache2::Module; use Apache2::Reload; sub handler { ... } 1; =head1 Description C reloads modules that change on the disk. When Perl pulls a file via C, it stores the filename in the global hash C<%INC>. The next time Perl tries to C the same file, it sees the file in C<%INC> and does not reload from disk. This module's handler can be configured to iterate over the modules in C<%INC> and reload those that have changed on disk or only specific modules that have registered themselves with C. It can also do the check for modified modules, when a special touch-file has been modified. Require-hooks, i.e., entries in %INC which are references, are ignored. The hook should modify %INC itself, adding the path to the module file, for it to be reloaded. C inspects and reloads the B associated with a given module. Changes to @INC are not recognized, as it is the file which is being re-required, not the module name. In version 0.10 and earlier the B, not the file, is re-required. Meaning it operated on the the current context of @INC. If you still want this behavior set this environment variable in I: PerlSetVar ReloadByModuleName On This means, when called as a C, C will not see C<@INC> paths added or removed by C scripts, as the value of C<@INC> is saved on server startup and restored to that value after each request. In other words, if you want C to work with modules that live in custom C<@INC> paths, you should modify C<@INC> when the server is started. Besides, C<'use lib'> in the startup script, you can also set the C variable in the httpd's environment to include any non-standard 'lib' directories that you choose. For example, to accomplish that you can include a line: PERL5LIB=/home/httpd/perl/extra; export PERL5LIB in the script that starts Apache. Alternatively, you can set this environment variable in I: PerlSetEnv PERL5LIB /home/httpd/perl/extra =head2 Monitor All Modules in C<%INC> To monitor and reload all modules in C<%INC> at the beginning of request's processing, simply add the following configuration to your I: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload When working with connection filters and protocol modules C should be invoked in the pre_connection stage: PerlPreConnectionHandler Apache2::Reload See also the discussion on C>. =head2 Register Modules Implicitly To only reload modules that have registered with C, add the following to the I: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload PerlSetVar ReloadAll Off # ReloadAll defaults to On Then any modules with the line: use Apache2::Reload; Will be reloaded when they change. =head2 Register Modules Explicitly You can also register modules explicitly in your I file that you want to be reloaded on change: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload PerlSetVar ReloadAll Off PerlSetVar ReloadModules "My::Foo My::Bar Foo::Bar::Test" Note that these are split on whitespace, but the module list B be in quotes, otherwise Apache tries to parse the parameter list. The C<*> wild character can be used to register groups of files under the same namespace. For example the setting: PerlSetVar ReloadModules "ModPerl::* Apache2::*" will monitor all modules under the namespaces C and C. =head2 Monitor Only Certain Sub Directories To reload modules only in certain directories (and their subdirectories) add the following to the I: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload PerlSetVar ReloadDirectories "/tmp/project1 /tmp/project2" You can further narrow the list of modules to be reloaded from the chosen directories with C as in: PerlModule Apache2::Reload PerlInitHandler Apache2::Reload PerlSetVar ReloadDirectories "/tmp/project1 /tmp/project2" PerlSetVar ReloadAll Off PerlSetVar ReloadModules "MyApache2::*" In this configuration example only modules from the namespace C found in the directories I and I (and their subdirectories) will be reloaded. =head2 Special "Touch" File You can also declare a file, which when gets Ced, causes the reloads to be performed. For example if you set: PerlSetVar ReloadTouchFile /tmp/reload_modules and don't C the file I, the reloads won't happen until you go to the command line and type: % touch /tmp/reload_modules When you do that, the modules that have been changed, will be magically reloaded on the next request. This option works with any mode described before. =head2 Unregistering a module In some cases, it might be necessary to explicitly stop reloading a module. Apache2::Reload->unregister_module('Some::Module'); But be careful, since unregistering a module in this way will only do so for the current interpreter. This feature should be used with care. =head1 Performance Issues This module is perfectly suited for a development environment. Though it's possible that you would like to use it in a production environment, since with C you don't have to restart the server in order to reload changed modules during software updates. Though this convenience comes at a price: =over =item * If the "touch" file feature is used, C has to stat(2) the touch file on each request, which adds a slight but most likely insignificant overhead to response times. Otherwise C will stat(2) each registered module or even worse--all modules in C<%INC>, which will significantly slow everything down. =item * Once the child process reloads the modules, the memory used by these modules is not shared with the parent process anymore. Therefore the memory consumption may grow significantly. =back Therefore doing a full server stop and restart is probably a better solution. =head1 Debug If you aren't sure whether the modules that are supposed to be reloaded, are actually getting reloaded, turn the debug mode on: PerlSetVar ReloadDebug On =head1 Caveats =head2 Problems With Reloading Modules Which Do Not Declare Their Package Name If you modify modules, which don't declare their C, and rely on C to reload them, you may encounter problems: i.e., it'll appear as if the module wasn't reloaded when in fact it was. This happens because when C Cs such a module all the global symbols end up in the C namespace! So the module does get reloaded and you see the compile time errors if there are any, but the symbols don't get imported to the right namespace. Therefore the old version of the code is running. =head2 Failing to Find a File to Reload C uses C<%INC> to find the files on the filesystem. If an entry for a certain filepath in C<%INC> is relative, C will use C<@INC> to try to resolve that relative path. Now remember that mod_perl freezes the value of C<@INC> at the server startup, and you can modify it only for the duration of one request when you need to load some module which is not in on of the C<@INC> directories. So a module gets loaded, and registered in C<%INC> with a relative path. Now when C tries to find that module to check whether it has been modified, it can't find since its directory is not in C<@INC>. So C will silently skip that module. You can enable the C mode to see what C does behind the scenes. =head2 Problems with Scripts Running with Registry Handlers that Cache the Code The following problem is relevant only to registry handlers that cache the compiled script. For example it concerns C> but not C>. =head3 The Problem Let's say that there is a module C: #file:My/Utils.pm #---------------- package My::Utils; BEGIN { warn __PACKAGE__ , " was reloaded\n" } use base qw(Exporter); @EXPORT = qw(colour); sub colour { "white" } 1; And a registry script F: #file:test.pl #------------ use My::Utils; print "Content-type: text/plain\n\n"; print "the color is " . colour(); Assuming that the server is running in a single mode, we request the script for the first time and we get the response: the color is white Now we change F: - sub colour { "white" } + sub colour { "red" } And issue the request again. C does its job and we can see that C was reloaded (look in the I file). However the script still returns: the color is white =head3 The Explanation Even though F was reloaded, C's cached code won't run 'C' again (since it happens only once, i.e. during the compile time). Therefore the script doesn't know that the subroutine reference has been changed. This is easy to verify. Let's change the script to be: #file:test.pl #------------ use My::Utils; print "Content-type: text/plain\n\n"; my $sub_int = \&colour; my $sub_ext = \&My::Utils::colour; print "int $sub_int\n"; print "ext $sub_ext\n"; Issue a request, you will see something similar to: int CODE(0x8510af8) ext CODE(0x8510af8) As you can see both point to the same CODE reference (meaning that it's the same symbol). After modifying F again: - sub colour { "red" } + sub colour { "blue" } and calling the script on the secondnd time, we get: int CODE(0x8510af8) ext CODE(0x851112c) You can see that the internal CODE reference is not the same as the external one. =head3 The Solution There are two solutions to this problem: Solution 1: replace C with an explicit C + C. - use My::Utils; + require My::Utils; My::Utils->import(); now the changed functions will be reimported on every request. Solution 2: remember to touch the script itself every time you change the module that it requires. =head1 Threaded MPM and Multiple Perl Interpreters If you use C with a threaded MPM and multiple Perl interpreters, the modules will be reloaded by each interpreter as they are used, not every interpreters at once. Similar to mod_perl 1.0 where each child has its own Perl interpreter, the modules are reloaded as each child is hit with a request. If a module is loaded at startup, the syntax tree of each subroutine is shared between interpreters (big win), but each subroutine has its own padlist (where lexical my variables are stored). Once C reloads a module, this sharing goes away and each Perl interpreter will have its own copy of the syntax tree for the reloaded subroutines. =head1 Pseudo-hashes The short summary of this is: Don't use pseudo-hashes. They are deprecated since Perl 5.8 and are removed in 5.9. Use an array with constant indexes. Its faster in the general case, its more guaranteed, and generally, it works. The long summary is that some work has been done to get this module working with modules that use pseudo-hashes, but it's still broken in the case of a single module that contains multiple packages that all use pseudo-hashes. So don't do that. =head1 Copyright mod_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0. =head1 Authors Matt Sergeant, matt@sergeant.org Stas Bekman (porting to mod_perl 2.0) A few concepts borrowed from C by Randal Schwartz and C (mod_perl 1.x) by Doug MacEachern and Ask Bjoern Hansen. =head1 MAINTAINERS the mod_perl developers, dev@perl.apache.org =cut Apache-Reload-0.14/LICENSE0000644060175106017510000002613614463674057014134 0ustar stevesteve Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. 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Apache-Reload-0.14/Makefile.PL0000644060175106017510000002043114463674057015071 0ustar stevesteveuse strict; use lib qw(lib); use Config; use Symbol qw(gensym); my %prereqs = (); my %mp2 = ( mod_perl2 => 1.99022 ); my %mp1 = ( mod_perl => 0 ); my $at_min_ver = 1.34; my $mp_gen; # MOD_PERL_2_BUILD is set from building from mod_perl Makefile.PL which should # also set MP_APXS if ($ENV{MOD_PERL_2_BUILD}) { push @ARGV, "-apxs", $ENV{MP_APXS}; $mp_gen = satisfy_mp_generation(2); } else { $mp_gen = satisfy_mp_generation(); } %prereqs = ($mp_gen == 1 ? %mp1 : %mp2); my $HAS_APACHE_TEST = check_for_apache_test(); my $VERSION; set_apache_reload_version(); my %common_opts = ( VERSION => $VERSION, PREREQ_PM => \%prereqs, dist => { COMPRESS => 'gzip -9f', SUFFIX => 'gz', PREOP => 'find $(DISTVNAME) -type d -print|xargs chmod 0755 && ' . 'find $(DISTVNAME) -type f -print|xargs chmod 0644', TO_UNIX => 'find $(DISTVNAME) -type f -print|xargs dos2unix' }, clean => { FILES => 't/TEST' }, ); ### MAINTAINER_BUILDING_RELEASE is hack ### for the Release Manager's use only. ### We will set it so that the resulting ### distribution will be called Apache-Reload-\d+.tar.gz ### and NOT Apache2-Reload-\d+.tar.gz ### This is for historical reasons and consistency if ($mp_gen == 1 || $ENV{MAINTAINER_BUILDING_RELEASE}) { require ExtUtils::MakeMaker; ExtUtils::MakeMaker::WriteMakefile( %common_opts, NAME => "Apache::Reload", ABSTRACT_FROM => 'lib/Apache/Reload.pm', ); } else { require ModPerl::MM; ModPerl::MM::WriteMakefile( %common_opts, NAME => "Apache2::Reload", ABSTRACT_FROM => 'lib/Apache2/Reload.pm', ); } sub check_for_apache_test { return unless eval { require Apache::Test; if ($Apache::Test::VERSION < $at_min_ver) { die "Apache::Test version is " . $Apache::Test::VERSION . ", minimum version required is $at_min_ver" . ", tests will be skipped\n"; } require Apache::TestMM; require Apache::TestRunPerl; 1; }; Apache::TestMM::filter_args(); my %args = @Apache::TestMM::Argv; Apache::TestRunPerl->generate_script(); return 1; } sub set_apache_reload_version { require Apache::Reload; $VERSION = $Apache::Reload::VERSION; my $fh = Symbol::gensym(); open $fh, 'Changes' or die "Can't open Changes: $!"; while (<$fh>) { if(/^=item.*-(dev|rc\d+)/) { $VERSION .= "-$1"; last; } last if /^=item/; } close $fh; } # If a specific generation was passed as an argument, # if satisfied # return the same generation # else # die # else @ARGV and %ENV will be checked for specific orders # if the specification will be found # if satisfied # return the specified generation # else # die # else if any mp generation is found # return it # else # die sub satisfy_mp_generation { my $wanted = shift || wanted_mp_generation(); unless ($wanted == 1 || $wanted == 2) { die "don't know anything about mod_perl generation: $wanted\n" . "currently supporting only generations 1 and 2.\n" . "Please specify MOD_PERL=1 or MOD_PERL=2 on the commandline\n"; } my $selected = 0; if ($wanted == 1) { require_mod_perl(1); if ($mod_perl::VERSION >= 1.99) { # so we don't pick 2.0 version if 1.0 is wanted die "You don't seem to have mod_perl 1.0 installed"; } $selected = 1; } elsif ($wanted == 2) { #warn "Looking for mod_perl 2.0"; require_mod_perl(2); if ($mod_perl::VERSION < 2.0) { die "You don't seem to have mod_perl 2.0 installed"; } $selected = 2; } else { require_mod_perl(); $selected = $mod_perl::VERSION >= 1.99 ? 2 : 1; warn "Using $mod_perl::VERSION\n"; } return $selected; } sub require_mod_perl { my($rversion) = @_; if (!$rversion || $rversion==1){ eval { require mod_perl }; if ($rversion == 1){ if ($@){ warn "Note: Did not find mod_perl installed\n"; } return; # do not die, let PREREQ_PM handle it } } if ($@ || !$rversion || $rversion==2){ eval { require mod_perl2 }; if ($rversion == 2){ if ($@){ warn "Note: Did not find mod_perl2 installed\n"; } return; # do not die, let PREREQ_PM handle it } } die "Can't find mod_perl installed\nThe error was: $@" if $@; } # the function looks at %ENV and Makefile.PL option to figure out # whether a specific mod_perl generation was requested. # It uses the following logic: # via options: # perl Makefile.PL MOD_PERL=2 # or via %ENV: # env MOD_PERL=1 perl Makefile.PL # # return value is: # 1 or 2 if the specification was found (mp 1 and mp 2 respectively) # 0 otherwise sub wanted_mp_generation { # check if we have a command line specification # flag: 0: unknown, 1: mp1, 2: mp2 my $flag = 0; foreach my $key (@ARGV) { if ($key =~ /^MOD_PERL=(\d)$/) { $flag = $1; } } # check %ENV my $env = exists $ENV{MOD_PERL} ? $ENV{MOD_PERL} : 0; # check for contradicting requirements if ($env && $flag && $flag != $env) { die <catdir('..', 'lib'); unshift @INC, $mplib if -e File::Spec->catfile($mplib,'mod_perl2.pm'); my $atlib = File::Spec->catdir('../', 'Apache-Test', 'lib'); unshift @INC, $atlib if -d $atlib; } eval { require mod_perl2 }; unless ($@) { $wanted = 2; } } else { $wanted = 1; } } return $wanted; } package MY; sub postamble { my $self = shift; my $q = ($^O =~ /MSWin32/i ? '"' : "'"); my $string = $self->SUPER::postamble; $string .= <<"EOF"; tag : svn copy -m $q\$(VERSION_SYM) tag$q https://svn.apache.org/repos/asf/perl/Apache-Reload/trunk https://svn.apache.org/repos/asf/perl/Apache-Reload/tags/\$(VERSION_SYM) EOF return $string; } sub test { my $self = shift; eval { require Test::More } or return <Apache::TestMM::test(@_) if $HAS_APACHE_TEST; return <Apache::TestMM::clean(@_) if $HAS_APACHE_TEST; return $self->SUPER::clean(@_); } sub constants { my $self = shift; my $string = $self->MM::constants; # mp2 installs this into INSTALLSITEARCH, so in order to avoid # problems when users forget 'make install UNINST=1', trick MM into # installing pure perl modules to the sitearch location, when this is # not installed as a part of mp2 build if (!$ENV{MOD_PERL_2_BUILD}) { $string .= <<'EOI'; # install into the same location as mod_perl 2.0 INSTALLSITELIB = $(INSTALLSITEARCH) DESTINSTALLSITELIB = $(DESTINSTALLSITEARCH) EOI } $string; } Apache-Reload-0.14/MANIFEST0000644000104006017510000000055314463674057016111 0ustar AdministratorssteveMANIFEST Makefile.PL README LICENSE lib/Apache/Reload.pm lib/Apache2/Reload.pm t/conf/extra.last.conf.in t/all.t t/reload.t t/lib/Apache/TestReload.pm t/lib/Apache2/TestReload.pm RELEASE Changes META.yml Module YAML meta-data (added by MakeMaker) META.json Module JSON meta-data (added by MakeMaker) Apache-Reload-0.14/META.json0000644000104006017510000000161214463674057016376 0ustar Administratorssteve{ "abstract" : "Reload changed modules", "author" : [ "unknown" ], "dynamic_config" : 1, "generated_by" : "ExtUtils::MakeMaker version 7.70, CPAN::Meta::Converter version 2.150010", "license" : [ "unknown" ], "meta-spec" : { "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec", "version" : 2 }, "name" : "Apache-Reload", "no_index" : { "directory" : [ "t", "inc" ] }, "prereqs" : { "build" : { "requires" : { "ExtUtils::MakeMaker" : "0" } }, "configure" : { "requires" : { "ExtUtils::MakeMaker" : "0" } }, "runtime" : { "requires" : { "mod_perl2" : "1.99022" } } }, "release_status" : "stable", "version" : "0.14", "x_serialization_backend" : "JSON::PP version 4.16" } Apache-Reload-0.14/META.yml0000644000104006017510000000102414463674057016223 0ustar Administratorssteve--- abstract: 'Reload changed modules' author: - unknown build_requires: ExtUtils::MakeMaker: '0' configure_requires: ExtUtils::MakeMaker: '0' dynamic_config: 1 generated_by: 'ExtUtils::MakeMaker version 7.70, CPAN::Meta::Converter version 2.150010' license: unknown meta-spec: url: http://module-build.sourceforge.net/META-spec-v1.4.html version: '1.4' name: Apache-Reload no_index: directory: - t - inc requires: mod_perl2: '1.99022' version: '0.14' x_serialization_backend: 'CPAN::Meta::YAML version 0.018' Apache-Reload-0.14/README0000644060175106017510000000627014463674057014004 0ustar stevesteveNAME Apache::Reload - Reload changed modules SYNOPSIS In httpd.conf: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off Then your module: package My::Apache::Module; use Apache::Reload; sub handler { ... } 1; DESCRIPTION This module is two things. First it is an adaptation of Randal Schwartz's Stonehenge::Reload module that attempts to be a little more intuitive and makes the usage easier. Stonehenge::Reload was written by Randal to make specific modules reload themselves when they changed. Unlike Apache::StatINC, Stonehenge::Reload only checked the change time of modules that registered themselves with Stonehenge::Reload, thus reducing stat() calls. Apache::Reload also offers the exact same functionality as Apache::StatINC, and is thus designed to be a drop-in replacement. Apache::Reload only checks modules that register themselves with Apache::Reload if you explicitly turn off the StatINC emulation method (see below). Like Apache::StatINC, Apache::Reload must be installed as an Init Handler. StatINC Replacement To use as a StatINC replacement, simply add the following configuration to your httpd.conf: PerlInitHandler Apache::Reload Register Modules Implicitly To only reload modules that have registered with Apache::Reload, add the following to the httpd.conf: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off # ReloadAll defaults to On Then any modules with the line: use Apache::Reload; Will be reloaded when they change. Register Modules Explicitly You can also register modules explicitly in your httpd.conf file that you want to be reloaded on change: PerlInitHandler Apache::Reload PerlSetVar ReloadAll Off PerlSetVar ReloadModules "My::Foo My::Bar Foo::Bar::Test" Note that these are split on whitespace, but the module list must be in quotes, otherwise Apache tries to parse the parameter list. Special "Touch" File You can also set a file that you can touch() that causes the reloads to be performed. If you set this, and don't touch() the file, the reloads don't happen. This can be a great boon in a live environment: PerlSetVar ReloadTouchFile /tmp/reload_modules Now when you're happy with your changes, simply go to the command line and type: touch /tmp/reload_modules And your modules will be magically reloaded on the next request. This option works in both StatINC emulation mode and the registered modules mode. PSUEDOHASHES The short summary of this is: Don't use psuedohashes. Use an array with constant indexes. Its faster in the general case, its more guaranteed, and generally, it works. The long summary is that I've done some work to get this working with modules that use psuedo hashes, but its still broken in the case of a single module that contains multiple packages that all use psuedohashes. So don't do that. AUTHOR Matt Sergeant, matt@sergeant.org MAINTAINERS the mod_perl developers, dev@perl.apache.org SEE ALSO Apache::StatINC, Stonehenge::Reload Apache-Reload-0.14/RELEASE0000644060175106017510000000600314463674057014121 0ustar stevesteveInstructions for Apache-Reload Release Manager 0. Ask the PMC to verify that you have the appropriate CPAN permissions on dev@perl. If this is your first release, ask someone with APML karma on PAUSE to verify you have the appropriate permissions. Likely someone on the PMC can do this. a. login into https://pause.perl.org b. menu click: Select Mailinglist/Action c. choose APML and Change Permissions and click go d. click 3.1 Make somebody else co-maintainer e. choose the modules to give the perms to type the username of the new co-maintainer f. if you happen to know that packages were added this release, make sure you give the correct permissions to them. % MAINTAINER_BUILDING_RELEASE=1 perl Makefile.PL 1. 'make disttest' - to make sure nothing is missing from the manifest. Now 'make dist', and test this generated package (not svn) with as many configurations as possible on as many platforms as possible. a. edit ./Changes: - change -dev to -rc\d+ starting with -rc1 b. commit Changes % svn ci -m "0.14 rc1" Changes c. nuke any preinstalled Apache-Reload libs and run 'make test' d. test that you can 'make install' and then run 'make test' again e. test whether we are still 100% OK on systems with no LWP: % APACHE_TEST_PRETEND_NO_LWP=1 make test 2. once confident that the package is good, commit the release candidate to https://dist.apache.org/repos/dist/dev/perl and post 24 hour-ish candidate alert to the various lists o dev/perl.apache.org o modperl/perl.apache.org (or maybe longer to give most people a chance to catch up). no need to tag this package Subject: [RELEASE CANDIDATE] Apache-Reload 0.14 RC\d+ a. if problems are detected during stage 2, repeat stages 1 and 2. 3. when the package has been reported to be good, prepare a new package to be released a. edit ./Changes - remove -rc\d+ - add release date b. rerun: % perl Makefile.PL make sure tag looks right % make -n tag c. commit Changes % svn ci -m "0.14 release" Changes d. tag % make tag e. create the final package % make dist f. test the final package again at least once 4. Upload the package to CPAN 5. Announce the package a. post to the following list: o modperl/perl.apache.org Subject: [ANNOUNCE] Apache-Reload 0.14 include: - MD5 sig (as it comes from CPAN upload announce). - the latest Changes 6. Prepare for the next cycle a. increment version in lib/Apache/Reload.pm and lib/Apache2/Reload.pm also b. edit ./Changes: - start a new item with incremented version + '-dev' =item 0.15-dev c. bump up version numbers in this file to make it easier to do the next release. % perl -pi.bak -e 's/(\d+)\.(\d+)/join(".", $1, $2+1)/eg' RELEASE (undo the change to the PAUSE menu item number in item 0d. above) d. commit Changes % svn ci -m "start 0.14-dev cycle" Changes RELEASE \ lib/Apache/Reload.pm lib/Apache2/Reload.pm Apache-Reload-0.14/t/0000755000104006017510000000000014463674057015220 5ustar AdministratorssteveApache-Reload-0.14/t/all.t0000644060175106017510000000015714463674057014322 0ustar stevesteveuse strict; use warnings FATAL => 'all'; use Apache::Test; plan tests => 1, need_module('mod_perl.c'); ok(1);Apache-Reload-0.14/t/conf/0000755000104006017510000000000014463674057016145 5ustar AdministratorssteveApache-Reload-0.14/t/conf/extra.last.conf.in0000644060175106017510000000113414463674057017647 0ustar stevesteve PerlModule Apache2::Reload PerlModule Apache2::TestReload PerlModule Apache::Reload PerlModule Apache::TestReload SetHandler perl-script PerlInitHandler Apache2::Reload PerlResponseHandler Apache2::TestReload PerlInitHandler Apache::Reload PerlHandler Apache::TestReload Apache-Reload-0.14/t/lib/0000755000104006017510000000000014463674054015763 5ustar AdministratorssteveApache-Reload-0.14/t/lib/Apache/0000755000104006017510000000000014463674057017147 5ustar AdministratorssteveApache-Reload-0.14/t/lib/Apache/TestReload.pm0000644060175106017510000000143614463674057017721 0ustar stevestevepackage Apache::TestReload; use strict; use warnings FATAL => 'all'; #use ModPerl::Util (); use Apache::Constants qw(:common); my $package = 'Reload::Test'; our $pass = 0; sub handler { my $r = shift; $pass++; $r->send_http_header('text/plain'); if ((defined ($r->args)) && ($r->args eq 'last')) { #Apache2::Reload->unregister_module($package); #ModPerl::Util::unload_package($package); $pass = 0; $r->print("unregistered OK"); return OK; } eval "require $package"; Reload::Test::run($r); return OK; } # This one shouldn't be touched package Reload::Test::SubPackage; sub subpackage { if ($Apache::TestReload::pass == '2') { return 'SUBPACKAGE'; } else { return 'subpackage'; } } 1; Apache-Reload-0.14/t/lib/Apache2/0000755000104006017510000000000014463674057017231 5ustar AdministratorssteveApache-Reload-0.14/t/lib/Apache2/TestReload.pm0000644060175106017510000000151314463674057017777 0ustar stevestevepackage Apache2::TestReload; use strict; use warnings FATAL => 'all'; use ModPerl::Util (); use Apache2::RequestRec (); use Apache2::Const -compile => qw(OK); use Apache2::RequestIO (); my $package = 'Reload::Test'; our $pass = 0; sub handler { my $r = shift; $pass++; if (defined $r->args and $r->args eq 'last') { Apache2::Reload->unregister_module($package); ModPerl::Util::unload_package($package); $pass = 0; $r->print("unregistered OK"); return Apache2::Const::OK; } eval "require $package"; Reload::Test::run($r); return Apache2::Const::OK; } # This one shouldn't be touched package Reload::Test::SubPackage; sub subpackage { if ($Apache2::TestReload::pass == '2') { return 'SUBPACKAGE'; } else { return 'subpackage'; } } 1; Apache-Reload-0.14/t/reload.t0000644060175106017510000000273114463674057015020 0ustar stevesteveuse strict; use warnings FATAL => 'all'; use Apache::Test; use Apache::TestUtil; use Apache::TestRequest; use File::Spec::Functions qw(catfile tmpdir); Apache::TestRequest::user_agent(keep_alive => 1); plan tests => 3, need 'HTML::HeadParser'; my $test_file = catfile qw(Reload Test.pm); my $location = '/reload'; my @tests = qw(const prototype simple subpackage); my $header = join '', ; my $initial = <<'EOF'; sub simple { 'simple' } use constant const => 'const'; sub prototype($) { 'prototype' } sub promised; EOF my $modified = <<'EOF'; sub simple { 'SIMPLE' } use constant const => 'CONST'; sub prototype($$) { 'PROTOTYPE' } EOF t_write_test_lib($test_file, $header, $initial); { my $expected = join '', map { "$_:$_\n" } sort @tests; my $received = GET $location; ok t_cmp($received->content, $expected, 'Initial'); } t_write_test_lib($test_file, $header, $modified); { my $expected = join '', map { "$_:" . uc($_) . "\n" } sort @tests; my $received = GET $location; ok t_cmp($received->content, $expected, 'Reload'); } { my $expected = "unregistered OK"; my $received = GET "$location?last"; ok t_cmp($received->content, $expected, 'Unregister'); } __DATA__ package Reload::Test; our @methods = qw(const prototype simple subpackage); sub subpackage { return Reload::Test::SubPackage::subpackage() } sub run { my $r = shift; foreach my $m (sort @methods) { $r->print($m, ':', __PACKAGE__->$m(), "\n"); } } 1;