What's new In Perl?

Mar 23, 20101 like2,523 views

- Léon Brocard gave a presentation on recent developments in Perl to the London.pm technical meeting. He discussed major and development releases of Perl 5.20 and 5.22, fixing bugs in Perl core, new features for Perl 5.24 including implicit strictures and the Yada Yada operator, and monitoring progress on modules and tools for the Perl ecosystem like App::cpanminus and CPAN Testers. He also announced upcoming London.pm social and technical meetings and the YAPC::Europe conference in August.

What’s new in Perl?

Léon Brocard

London.pm Technical Meeting
BBC, March

Me

Léon Brocard
French, live in London
Like food
Like the colour orange
Founded Amsterdam.pm, Bath.pm, Croydon.pm
Now leader of London.pm
Started YAPC::Europe
Perl hacker

Major releases

- - Perl
- - Perl . .
- - Perl . .
- - Perl . .
- - Perl . .

Development releases
- - Perl . . – Jesse Vincent
- - Perl . . – Jesse Vincent
- - Perl . . – Léon Brocard
- - Perl . . – Jesse Vincent
- - Perl . . – Ricardo Signes
- - Perl . . – Steve Hay
- - Perl . . – Ask Bj?rn Hansen
- - Perl . . – Léon Brocard
- - Perl . . – Ricardo Signes
- - Perl . . – Philippe Bruhat
- - Perl . . – Matt Trout
- - Perl . . – David Golden
- - Perl . . – Steve Hay

Fixing Perl Core Bugs

Grant to David Mitchell from the Perl Foundation
, from booking.com
“ ere are currently approximately open and
new bug reports in the perl bug queue . . . Note
that unlike many large open source projects, perl has
no paid developers devoted to bug xing”

TPF bug-grant report

I haven’t done much in the way of actual xing this
week, but I have gone through the or so
new/open RT tickets that have (severity >= medium),
and marked each one up with one or more of the new
‘type’ custom eld values I recently asked to be added
to RT, e.g. ‘Unicode’ or ‘debugger’
— David Mitchell

Perl . .

Perl . . represents approximately two years of
development since Perl . . and contains over
, lines of changes across over , les from
over authors and committers
No RC blockers le & Perl . . RC “coming
soonish” from Jesse Vincent
?ber code freeze under e ect, if you have any change
that touches code talk to Jesse before commiting to
blead

Perl . . features

package Foo::Bar . ;
Yada Yada operator: sub unimplemented { ... }
Implicit strictures: use . . ;
Unicode .
Y compliance
@INC order change
qr// overloading
Pluggable keywords
-bit limit on substr arguments removed
autodie
suidperl is no longer part of Perl

miyagawa-watch
Plack, PSGI, Corona, App::cpanminus,
CGI::Compile, Starman, Catalyst::View::JSON,
AnyEvent::Redis, CGI::Emulate::PSGI, Tatsumaki,
AnyEvent::Twitter::Stream, Perlbal::Plugin::PSGI,
Plack::Middleware::Session, HTML::Selector::XPath,
Plack::Handler::AnyEvent::HTTPD,
Plack::Handler::SCGI, App::CPAN::Fresh, Twiggy,
HTTP::Server::Simple::PSGI,
Plack::Handler::AnyEvent::ReverseHTTP, CGI::PSGI,
Hash::MultiValue, Plack::Middleware::Auth::Digest,
Plack::Middleware::File::Sass, Log::Dispatch::Con g,
Web::Scraper, Plack::Middleware::Debug,
Plack::Server::ReverseHTTP. . .

App::cpanminus

Get, unpack, build and install modules from CPAN
cpanm Module
cpanm MIYAGAWA/Plack-1.0000.tar.gz
cpanm ~/mydists/MyCompany-Framework-1.0.tar.gz
cpanm http://example.com/MyModule-0.1.tar.gz
cpanm http://github.com/miyagawa/Tatsumaki/
tarball/master
cpanm --interactive Task::Kensho

Fast, low-memory, quiet

CPAN Testers .

Consistent grading logic across all tools
Reports sent via HTTP instead of email
Reports stored in a central database instead of NNTP
Author noti cation via a centralized service instead
of by each individual tester
Reports with structured data instead of plain text
(e.g. prereqs found)
Status: closed beta is live at reports/min

Next social meeting

London.pm April social meeting
ursday th April
e Bridge House, Tower Bridge Road, SE UP

Next technical meeting

London.pm technical meeting
Monday th April
Damian Conway
Sponsored by NET-A-PORTER

Next major conference

YAPC::Europe
“ e renaissance of Perl”
Pisa, Italy
th- th August

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What's new In Perl?

1. What’s new in Perl? Léon Brocard London.pm Technical Meeting BBC, March

2. Me Léon Brocard French, live in London Like food Like the colour orange Founded Amsterdam.pm, Bath.pm, Croydon.pm Now leader of London.pm Started YAPC::Europe Perl hacker

3. Major releases - - Perl - - Perl . . - - Perl . . - - Perl . . - - Perl . .

4. Development releases - - Perl . . – Jesse Vincent - - Perl . . – Jesse Vincent - - Perl . . – Léon Brocard - - Perl . . – Jesse Vincent - - Perl . . – Ricardo Signes - - Perl . . – Steve Hay - - Perl . . – Ask Bj?rn Hansen - - Perl . . – Léon Brocard - - Perl . . – Ricardo Signes - - Perl . . – Philippe Bruhat - - Perl . . – Matt Trout - - Perl . . – David Golden - - Perl . . – Steve Hay

5. Fixing Perl Core Bugs Grant to David Mitchell from the Perl Foundation , from booking.com “ ere are currently approximately open and new bug reports in the perl bug queue . . . Note that unlike many large open source projects, perl has no paid developers devoted to bug xing”

6. TPF bug-grant report I haven’t done much in the way of actual xing this week, but I have gone through the or so new/open RT tickets that have (severity >= medium), and marked each one up with one or more of the new ‘type’ custom eld values I recently asked to be added to RT, e.g. ‘Unicode’ or ‘debugger’ — David Mitchell

7. Perl . . Perl . . represents approximately two years of development since Perl . . and contains over , lines of changes across over , les from over authors and committers No RC blockers le & Perl . . RC “coming soonish” from Jesse Vincent ?ber code freeze under e ect, if you have any change that touches code talk to Jesse before commiting to blead

8. Perl . . features package Foo::Bar . ; Yada Yada operator: sub unimplemented { ... } Implicit strictures: use . . ; Unicode . Y compliance @INC order change qr// overloading Pluggable keywords -bit limit on substr arguments removed autodie suidperl is no longer part of Perl

9. miyagawa-watch Plack, PSGI, Corona, App::cpanminus, CGI::Compile, Starman, Catalyst::View::JSON, AnyEvent::Redis, CGI::Emulate::PSGI, Tatsumaki, AnyEvent::Twitter::Stream, Perlbal::Plugin::PSGI, Plack::Middleware::Session, HTML::Selector::XPath, Plack::Handler::AnyEvent::HTTPD, Plack::Handler::SCGI, App::CPAN::Fresh, Twiggy, HTTP::Server::Simple::PSGI, Plack::Handler::AnyEvent::ReverseHTTP, CGI::PSGI, Hash::MultiValue, Plack::Middleware::Auth::Digest, Plack::Middleware::File::Sass, Log::Dispatch::Con g, Web::Scraper, Plack::Middleware::Debug, Plack::Server::ReverseHTTP. . .

10. App::cpanminus Get, unpack, build and install modules from CPAN cpanm Module cpanm MIYAGAWA/Plack-1.0000.tar.gz cpanm ~/mydists/MyCompany-Framework-1.0.tar.gz cpanm http://example.com/MyModule-0.1.tar.gz cpanm http://github.com/miyagawa/Tatsumaki/ tarball/master cpanm --interactive Task::Kensho Fast, low-memory, quiet

11. CPAN Testers . Consistent grading logic across all tools Reports sent via HTTP instead of email Reports stored in a central database instead of NNTP Author noti cation via a centralized service instead of by each individual tester Reports with structured data instead of plain text (e.g. prereqs found) Status: closed beta is live at reports/min

12. Next social meeting London.pm April social meeting ursday th April e Bridge House, Tower Bridge Road, SE UP

13. Next technical meeting London.pm technical meeting Monday th April Damian Conway Sponsored by NET-A-PORTER

14. Next major conference YAPC::Europe “ e renaissance of Perl” Pisa, Italy th- th August

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