-
=head1 NAME
release_managers_guide - Releasing a new version of perl 5.x
This document describes the series of tasks required - some automatic, some
manual - to produce a perl release of some description, be that a snaphot,
-release candidate, or final release.
+release candidate, or final, numbered release of maint or blead.
-The release process is primarily executed by the current pumpking.
+The release process has traditionally been executed by the current
+pumpking.
-This document both helps as a check-list for the pumpking and is
-a base for ideas on how the various tasks could be automated or
-distributed.
+This document both helps as a check-list for the release engineer
+and is a base for ideas on how the various tasks could be automated
+or distributed.
The outline of a typical release cycle is as follows:
=head1 DETAILS
+Some of the tasks described below apply to all four types of
+release of Perl. (snapshot, RC, final release of maint, final
+release of blead). Some of these tasks apply only to a subset
+of these release types. If a step does not apply to a given
+type of release, you will see a notation to that effect at
+the beginning of the step.
+
+=head2 Release types
+
+=over 4
+
+=item Snapshot
+
+A snapshot is intended to encourage in-depth testing from time-to-time,
+for example after a key point in the stabilisation of a branch. It
+requires fewer steps than a full release, and the version number of perl in
+the tarball will usually be the same as that of the previous release.
+
+=item Release Candidate (RC)
+
+XXX Describe me
+
+=item Stable/Maint release
+
+At this point you should have a working release candidate with few or no
+changes since.
+
+It's essentially the same procedure as for making a release candidate, but
+with a whole bunch of extra post-release steps.
+
+=item Blead release
+
+It's essentially the same procedure as for making a release candidate, but
+with a whole bunch of extra post-release steps.
+
+=back
=head2 Prerequisites
=over 4
-=item *
+=item PAUSE account
+
+I<SKIP this step for SNAPSHOT>
Make sure you have a PAUSE account suitable for uploading a perl release.
If you don't have a PAUSE account, then request one:
https://pause.perl.org/pause/query?ACTION=pause_04imprint
-=item *
+=item CPAN mirror
+
+Some release engineering steps require a full mirror of the CPAN.
+Work to fall back to using a remote mirror via HTTP is incomplete
+but ongoing. (No, a minicpan mirror is not sufficient)
+
+=item git checkout and commit bit
You will need a working C<git> installation, checkout of the perl
git repository and perl commit bit. For information about working
you into the idea in the first place to figure out the best way to
resolve the issue.
-=back
-
-
-=head2 Building a snapshot
-
-A snapshot is intended to encourage in-depth testing from time-to-time,
-for example after a key point in the stabilisation of a branch. It
-requires fewer steps than a full release, and the version number of perl in
-the tarball will usually be the same as that of the previous release.
-
-=over 4
-
-=item *
-
-As there are no regular smokes [ XXX yet - please fix?] find out about the
-state of the current branch on VMS. If the branch you're releasing on
-is failing tests on VMS, you may not want to do a release.
-
-=item *
-
-Configure and build perl so that you have a Makefile and porting tools:
-
- $ ./Configure -Dusedevel -des
- $ make
-
-=item *
-
-Rebuild META.yml:
-
- $ rm META.yml
- $ make META.yml
-
-Commit META.yml if it has changed:
-
- $ git commit -m 'Updating META.yml in preparation for release of 5.x.y' META.yml
-
-=item *
-Check that the manifest is sorted and correct:
+=item Quotation for release announcement epigraph
- $ make manisort
- $ make distclean
- $ perl Porting/manicheck
+I<SKIP this step for SNAPSHOT and RC>
+For a numbered blead or maint release of perl, you will need a quotation
+to use as an epigraph to your release announcement. (There's no harm
+in having one for a snapshot, but it's not required).
-Commit MANIFEST if it has changed:
-
- $ git commit -m 'Updating MANIFEST in preparation for release of 5.x.y' MANIFEST
-
-
-
-=item *
-
-If this is a release candidate or final release, add an entry to
-F<pod/perlhist.pod> with the current date, e.g.
-
- 5.8.9-RC1 2008-Nov-10
-
-Make sure the correct pumpking is listed, and if this is your first time,
-append your name to C<THE KEEPERS OF THE PUMPKIN>.
-
-=item *
-
-Build perl, then make sure it passes its own test suite, and installs:
-
- $ ./Configure -des -Dusedevel -Dprefix=/tmp/perl-5.x.y-pretest
- $ make test install
-
-=item *
-
-Create a tarball. Use the C<-s> option to specify a suitable suffix for
-the tarball and directory name:
-
- $ cd root/of/perl/tree
- $ make distclean
- $ git clean -xdf # make sure perl and git agree on files
-
- $ perl Porting/makerel -b -s `git describe` # for a snapshot
- $ perl Porting/makerel -b -s RC1 # for a release candidate
- $ perl Porting/makerel -b # for a final release
-
-This creates the directory F<../perl-x.y.z-RC1> or similar, copies all
-the MANIFEST files into it, sets the correct permissions on them,
-adds DOS line endings to some, then tars it up as
-F<../perl-x.y.z-RC1.tar.gz>. With C<-b>, it also creates a C<tar.bz2> file.
-
-XXX if we go for extra tags and branches stuff, then add the extra details
-here
-
-=item *
-
-Copy the tarballs (.gz and possibly .bz2) to a web server somewhere you
-have access to.
-
-=item *
-
-Download the tarball to some other machine. For a release candidate,
-you really want to test your tarball on two or more different platforms
-and architectures. The #p5p IRC channel on irc.perl.org is a good place
-to find willing victims.
-
-=item *
-
-Check that basic configuration and tests work on each test machine:
-
- $ ./Configure -des && make all test
-
-=item *
-
-Check that the test harness and install work on each test machine:
-
- $ ./Configure -des -Dprefix=/install/path && make all test_harness install
-
-=item *
-
-Check that the output of C<perl -v> and C<perl -V> are as expected,
-especially as regards version numbers, patch and/or RC levels, and @INC
-paths.
-
-Note that the results may be different without a F<.git/> directory,
-which is why you should test from the tarball.
-
-=item *
-
-Bootstrap the CPAN client on the clean install:
-
- $ ./bin/perl -MCPAN -e'shell'
-
-=item *
-
-Install Inline.pm
-
- $ ./bin/perl -MCPAN -e'install Inline'
-
-Check that your perl can run this:
-
- $ ./bin/perl -lwe 'use Inline C => "int answer() { return 42;} "; print answer'
-
-=item *
-
-Bootstrap the CPANPLUS client on the clean install:
-
- $ ./bin/cpanp
-
-
-=item *
-
-Install an XS module.
-
-=item *
-
-If all is well, announce the snapshot to p5p. (For a release candidate,
-instead follow the further steps described later.)
=back
-=head2 Actions prior to the first release candidate
-A week or two before the first release candidate, there are some additional
-tasks you should perform (actually, some of these should be done regularly
-anyway, but they definitely need doing now):
+=head2 Building a release
+
+The work of building a release candidate for a numbered release of
+perl generally starts several weeks before the first release candidate.
+Some of these should be done regularly, but all I<must> be done in the
+runup to a release.
=over 4
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Check F<Maintainers.pl> for consistency; both these commands should
produce no output:
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Ensure that dual-life CPAN modules are synchronised with CPAN. Basically,
run the following:
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Ensure dual-life CPAN modules are stable, which comes down to:
for each module that fails its regression tests on $current
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Similarly, monitor the smoking of core tests, and try to fix.
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Similarly, monitor the smoking of perl for compiler warnings, and try to
fix.
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Run F<Porting/cmpVERSION.pl> to compare the current source tree with the
previous version to check for for modules that have identical version
numbers but different contents, e.g.:
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Get perldelta in a mostly finished state.
Peruse F<Porting/how_to_write_a_perldelta.pod>, and try to make sure that
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Bump the perl version number (e.g. from 5.10.0 to 5.10.1).
There is a tool to semi-automate this process. It works in two stages.
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Review and update INSTALL to account for the change in version number;
in particular, the "Coexistence with earlier versions of perl 5" section.
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Update the F<Changes> file to contain the git log command which would show
all the changes in this release. You will need assume the existence of a
not-yet created tag for the forthcoming release; e.g.
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Update F<AUTHORS>, using the C<Porting/checkAUTHORS.pl> script, and if
necessary, update the script to include new alias mappings.
XXX This script is currently broken (7/2009). It needs updating to work
with git and a lack of Changes files.
-=back
-=head2 Building a release candidate
+=item *
-(At this point you should already have performed the actions described in
-L</"Actions prior to the first release candidate">.) You should review
-that section to ensure that everything there has done, and to see whether
-any of those actions (such as consistency checks) need to be repeated.
+I<You MAY SKIP this step for SNAPSHOT>
-=over 4
+As there are no regular smokes [ XXX yet - please fix?] find out about the
+state of the current branch on VMS. If the branch you're releasing on
+is failing tests on VMS, you may not want to do a release.
+
+=item *
+
+Configure and build perl so that you have a Makefile and porting tools:
+
+ $ ./Configure -Dusedevel -des
+ $ make
+
+=item *
+
+Rebuild META.yml:
+
+ $ rm META.yml
+ $ make META.yml
+
+Commit META.yml if it has changed:
+
+ $ git commit -m 'Updating META.yml in preparation for release of 5.x.y' META.yml
+
+=item *
+
+Check that the manifest is sorted and correct:
+
+ $ make manisort
+ $ make distclean
+ $ perl Porting/manicheck
+
+
+Commit MANIFEST if it has changed:
+
+ $ git commit -m 'Updating MANIFEST in preparation for release of 5.x.y' MANIFEST
+
+
+
+=item *
+
+I<You MUST SKIP this step for SNAPSHOT>
+
+A dd an entry to F<pod/perlhist.pod> with the current date:
+
+ 5.8.9-RC1 2008-Nov-10
+
+Make sure the correct pumpking is listed, and if this is the first release
+under the stewardship of a new pumpking, make sure that his or her name
+is listed in the section entitled C<THE KEEPERS OF THE PUMPKIN>.
+
+Be sure to commit your changes:
+
+ $ git commit -m 'Updating perlhist in preparation for release of 5.x.y pod/perlhist.pod
+
+
+=item *
+
+Build perl, then make sure it passes its own test suite, and installs:
+
+ $ ./Configure -des -Dusedevel -Dprefix=/tmp/perl-5.x.y-pretest
+ $ make test install
+
+=item *
+
+Create a tarball. Use the C<-s> option to specify a suitable suffix for
+the tarball and directory name:
+
+ $ cd root/of/perl/tree
+ $ make distclean
+ $ git clean -xdf # make sure perl and git agree on files
+
+ $ perl Porting/makerel -b -s `git describe` # for a snapshot
+ $ perl Porting/makerel -b -s RC1 # for a release candidate
+ $ perl Porting/makerel -b # for a final release
+
+This creates the directory F<../perl-x.y.z-RC1> or similar, copies all
+the MANIFEST files into it, sets the correct permissions on them,
+adds DOS line endings to some, then tars it up as
+F<../perl-x.y.z-RC1.tar.gz>. With C<-b>, it also creates a C<tar.bz2> file.
+
+XXX if we go for extra tags and branches stuff, then add the extra details
+here
+
+=item *
+
+Copy the tarballs (.gz and possibly .bz2) to a web server somewhere you
+have access to.
+
+=item *
+
+Download the tarball to some other machine. For a release candidate,
+you really want to test your tarball on two or more different platforms
+and architectures. The #p5p IRC channel on irc.perl.org is a good place
+to find willing victims.
+
+=item *
+
+Check that basic configuration and tests work on each test machine:
+
+ $ ./Configure -des && make all test
=item *
+Check that the test harness and install work on each test machine:
+
+ $ ./Configure -des -Dprefix=/install/path && make all test_harness install
+
+=item *
+
+Check that the output of C<perl -v> and C<perl -V> are as expected,
+especially as regards version numbers, patch and/or RC levels, and @INC
+paths.
+
+Note that the results may be different without a F<.git/> directory,
+which is why you should test from the tarball.
+
+=item *
+
+Bootstrap the CPAN client on the clean install:
+
+ $ ./bin/perl -MCPAN -e'shell'
+
+=item *
+
+Install Inline.pm
+
+ $ ./bin/perl -MCPAN -e'install Inline'
+
+Check that your perl can run this:
+
+ $ ./bin/perl -lwe 'use Inline C => "int answer() { return 42;} "; print answer'
+
+=item *
+
+Bootstrap the CPANPLUS client on the clean install:
+
+ $ ./bin/cpanp
+
+
+=item *
+
+Install an XS module.
+
+=item *
+
+If all is well, announce the snapshot to p5p. (For a release candidate,
+instead follow the further steps described later.)
+
+
+=item *
+
+
+I<You MAY SKIP this step for SNAPSHOT>
+
Re-read the perldelta to try to find any embarrassing typos and thinkos;
remove any C<TODO> or C<XXX> flags; and run through pod and spell
checkers, e.g.
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Update patchlevel.h to add a C<-RC1>-or-whatever string; or, if this is a
final release, remove it. [ XXX how now?? see 34813 for old way ]
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Update C<Module::Corelist>.
Note that if this is a maint release, you should run the following actions
Edit the version number in the new C<< 'Module::CoreList' => 'X.YZ' >>
entry, as that is likely to reflect the previous version number.
+If this is a final release (rather than a release candidate):
-
-
-Add or update an entry to the C<%released> hash, including today's date
-(if this is just a release candidate, set the date to '????-??-??').
+ Update this version's entry in the C<%released> hash with today's date.
Finally, commit the new version of Module::CoreList:
=item *
-Follow the instructions in the section L</"Building a snapshot">, then
-carry on with the extra steps that follow here.
-
-=item *
-
Disarm the patchlevel.h change [ XXX expand ]
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Wait for the smoke tests to catch up with the commit which this release is
based on (or at least the last commit of any consequence).
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Once smoking is okay, upload it to PAUSE. This is the point of no return.
If anything goes wrong after this point, you will need to re-prepare
a new release with a new minor version or RC number.
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Create a tag for the exact git revsion you built the release from:
$ git tag perl-5.10.1-RC1 -m'Release Candidate 1 of Perl 5.10.1'
=item *
+I<You MAY SKIP this step for SNAPSHOT>
+
Wait 24 hours or so, then post the announcement to use.perl.org.
(if you don't have access rights to post news, ask someone like Rafael to
do it for you.)
-=back
-
-
-=head2 Making a final release
-
-At this point you should have a working release candidate with few or no
-changes since.
-
-It's essentially the same procedure as for making a release candidate, but
-with a whole bunch of extra post-release steps.
-
-=over 4
-
=item *
-Follow the same steps as for making a release candidate, then
-
-=item *
+I<You MUST SKIP this step for SNAPSHOT, RC, BLEAD>
Ask Jarkko to update http://www.cpan.org/src/README.html and
Rafael to update http://dev.perl.org/perl5/
=item *
+I<You MUST SKIP this step for SNAPSHOT, RC>
+
+
Create a new empty perlNNNdelta.pod file for the current release + 1;
see F<Porting/how_to_write_a_perldelta.pod>.
[ XXX Perhaps we should have an empty template file we can copy in. ]
=item *
-If this was a maintenance release, then edit F<Porting/mergelog> to change
-all the C<d> (deferred) flags to C<.> (needs review).
-
+I<You MUST SKIP this step for SNAPSHOT, RC, BLEAD>
-=item *
-
-If this was a major release, then
+If this was a maint release, then edit F<Porting/mergelog> to change
+all the C<d> (deferred) flags to C<.> (needs review).
-=over
+XXX - we should be able to use git to automate much of the role
+previously filled by the mergelog.
=item *
-bump the version, e.g. 5.12.0 to 5.13.0;
+I<You MUST SKIP this step for SNAPSHOT, RC, BLEAD>
-=item *
+If this was a major release (5.x.0), then create a new maint branch
+based on the commit tagged as the current release and bump the version
+in the blead branch in git, e.g. 5.12.0 to 5.13.0.
[ XXX probably lots more stuff to do, including perldelta,
C<lib/feature.pm> ]
-=item *
-
-Create a new maint branch with an empty Porting/mergelog file
-[ XXX and lots of other stuff too, probably ]
-
-=back
+XXX need a git recipe
=item *
+I<You MUST SKIP this step for SNAPSHOT, RC, BLEAD>
+
Copy the perlNNNdelta.pod for this release into the other branches, and
remember to update these files on those branches too:
=item *
+I<You MUST SKIP this step for SNAPSHOT>
+
Make sure any recent F<pod/perlhist.pod> entries are copied to
F<perlhist.pod> on other branches; typically the RC* and final entries,
e.g.
=item *
+I<You MUST SKIP this step for SNAPSHOT, RC>
+
Remind the current maintainer of C<Module::CoreList> to push a new release
to CPAN.
+=item *
+
+I<You MUST RETIRE to your preferred PUB, CAFE or SEASIDE VILLA for some much-needed
+rest and relaxation>.
+
+Thanks for releasing perl!
+
=back
=head1 SOURCE