Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Introduction to perlbrew
Search
Kang-min Liu
October 13, 2011
Technology
2
1.9k
Introduction to perlbrew
The perlbrew introduction talk I gave in YAPC::Asia 2011.
Kang-min Liu
October 13, 2011
Tweet
Share
More Decks by Kang-min Liu
See All by Kang-min Liu
Elasticsearch Intro
gugod
6
640
Event-driven programming with Perl
gugod
7
1.6k
Other Decks in Technology
See All in Technology
Amazon Bedrock AgentCore でプロモーション用動画生成エージェントを開発する
nasuvitz
6
410
Yahoo!ニュースにおけるソフトウェア開発
lycorptech_jp
PRO
0
320
Postman MCP 関連機能アップデート / Postman MCP feature updates
yokawasa
0
140
Goでマークダウンの独自記法を実装する
lag129
0
210
TypeScript入門
recruitengineers
PRO
3
210
モバイルアプリ研修
recruitengineers
PRO
2
190
生成AI利用プログラミング:誰でもプログラムが書けると 世の中どうなる?/opencampus202508
okana2ki
0
190
開発と脆弱性と脆弱性診断についての話
su3158
1
1.1k
[CV勉強会@関東 CVPR2025 読み会] MegaSaM: Accurate, Fast, and Robust Structure and Motion from Casual Dynamic Videos (Li+, CVPR2025)
abemii
0
180
ABEMAにおける 生成AI活用の現在地 / The Current Status of Generative AI at ABEMA
dekatotoro
0
640
KiroでGameDay開催してみよう(準備編)
yuuuuuuu168
1
120
アジャイルテストで高品質のスプリントレビューを
takesection
0
110
Featured
See All Featured
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
Into the Great Unknown - MozCon
thekraken
40
2k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.4k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
We Have a Design System, Now What?
morganepeng
53
7.7k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
Six Lessons from altMBA
skipperchong
28
4k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.6k
GraphQLの誤解/rethinking-graphql
sonatard
71
11k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
3k
Transcript
None
Kang-min Liu @gugod
/me @gugod, ཱུ߁ຽ, Kang-min Liu Web programmer CPAN Author for
~100 distributions http://perlbrew.pl
/me @gugod, ཱུ߁ຽ, Kang-min Liu { Perl, Ruby, Javascript, HTML,
CSS, SQL, Photoshop } programmer CPAN Author for ~100 distributions http://perlbrew.pl
perlbrew
←
← /usr/bin/perl /usr/local/bin/perl /opt/local/bin/perl /home/gugod/local/bin/perl
← /usr/bin/perl5.8.8 /usr/bin/perl5.10.0 /usr/bin/perl site_lib is preserved after upgrade @INC
gets longer and longer.
The awesomeness perl is very backward compatible Ideal for production
keep upgrading perl is generally OK don’t necessarily have to upgrade cpan modules following a perl upgrade.
The huh CPAN modules are not necessarily backward compatible. XS
modules might need to be recompiled with new perl Upgrading modules might not be avoidable.
The hmm The current CPAN architecture sort of encourages upgrading
The default is to install the latest version of modules. Upgrading CPAN modules isn’t necessarily smooth.
The err Errors happens at runtime XS errors happens at
install / compile time and it is ^%@&* to solve.
Worst of all Have to upgrade perl before doing all
that. an all-in-ish move
Worst of all Dirty state 100 CPAN modules are updated
1 failed Can’t easily revert
retreat cp /usr/bin/perl${old} /usr/bin/perl old perl does not contain new
site_lib
But what if Upgrade perl for... performance bug-fixes evaluation
Practicals Module authors have to correctly specify module dependencies. Module
users have to run tests in order to reveal runtime errors. assuming there are sufficient numbers of tests
!
perlbrew A tool to install different versions of perls
admin-free perl installation management
beer-driven software development
rvm 1.8, 1.9, ree, jruby, rubinus, macruby, maglev, ironruby
perlbrew 5.8, 5.9, 5.10, 5.11, 5.12, 5.13, 5.14, 5.15
Installation # 1 curl -kL http://xrl.us/perlbrewinstall | bash # 2
cpan -i App::perlbrew perlbrew init
Usage perlbrew install perl-5.12.2 perlbrew install perl-5.13.5 perlbrew install perl-5.10.1
perlbrew install perl-5.8.8 * Internet connection is required
Usage perlbrew use perl-5.14.2 perlbrew use perl-5.15.5 perlbrew switch perl-5.14.2
perlbrew off
Usage perlbrew list
> perlbrew list perl-5.10.0 perl-5.10.1 perl-5.10.1 perl-5.12.3 perl-5.14.1 * perl-5.14.2
perl-5.14.2@app-awesome perl-5.15.3
Usage perlbrew lib
Usage perlbrew lib list perlbrew lib create nobita perlbrew lib
create perl-5.14.2@nobita perlbrew use perl-5.14.2@nobita perlbrew lib delete perl-5.12.3@nobita
cd ~/src/App-Awesome perlbrew use perl-5.10.1@app-awesome perlbrew use perl-5.14.2@app-awesome cd ~/src/Module-Awesome
perlbrew use perl-5.10.1@nobita perlbrew use perl-5.14.1@nobita perlbrew use perl-5.14.2@nobita
perlbrew use perl-5.10.1@app-awesome
perlbrew use perl-5.10.1@app-awesome perl installation name
perlbrew use perl-5.10.1@app-awesome local::lib name
perlbrew use perl-5.10.1@app-awesome
eval `perl -Mlocal::lib=~/.perlbrew/ libs/perl-5.10.1@app-awesome/`
% perl -V ... Compiled at Sep 27 2011 14:08:36
%ENV: PERL5LIB="/Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome/lib/perl5/darwin-2level:/ Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome/lib/perl5" PERLBREW_BASHRC_VERSION="0.30," PERLBREW_HOME="/Users/gugod/.perlbrew" PERLBREW_LIB="app-awesome" PERLBREW_PATH="/Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome/bin:/Users/gugod/ perl5/perlbrew/bin:/Users/gugod/perl5/perlbrew/perls/perl-5.14.2/bin" PERLBREW_PERL="perl-5.14.2" PERLBREW_ROOT="/Users/gugod/perl5/perlbrew" PERLBREW_VERSION="0.30" PERL_LOCAL_LIB_ROOT="/Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome" PERL_MB_OPT="--install_base /Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome" PERL_MM_OPT="INSTALL_BASE=/Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome" @INC: /Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome/lib/perl5/darwin-2level /Users/gugod/.perlbrew/libs/perl-5.14.2@app-awesome/lib/perl5 /Users/gugod/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2/darwin-2level /Users/gugod/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2 /Users/gugod/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2/darwin-2level /Users/gugod/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2
perlbrew.pl 0.30
Properties isolated perl installations bin, site_lib, local::lib install a new
version ≠ upgrade @INC does not include old site_lib
Benefits `sudo cpan` is no more easier-to-clean perl environments Nuke
the whole thing to clean the mess No old @INC
Benefits per-app isolated perl environments setup. avoid, in advance, any
possible incompatible issues with other apps. know your libs
avoid lib conflicts with what you had install older versions
of modules without worries to break other app code. cpanm http://URL.TO/Mo-0.1.tar.gz App::pmuninstall Benefits
Rationale Don’t mess up vendor perl too much. Learn new
stuffs in the dev version of perl. keep up with the fashion
Rationale Test modules or apps ... with newer perl ...
with older perl
Rationale Test perl itself -Dusethreads -Duse64bitall -Duse64bitint Configure -h -D
-U -A
Rationale spare some guts B, XS Better with a perl
built with DEBUGGING
Thoughts perlbrew « cpanm, ack, rvm
Thoughts One standalone program embed non-core modules very easy distribution
runs a tiny bit faster
Thoughts rvm bash programming master-piece developer-friendly experiences production uses
Further Thoughts Deprecate switch/use to external perl Improve multi-user scenario
More related tool to help developer identify module upgrade failure, and revert to a good state.
Further Thoughts Good + Simple toolkit Keep new-comers by not
frustrating them Grow the community
Simple is Hard
Development http://github.com/gugod/App-perlbrew 49 contributors Feedback github issue / pull requests
rt.cpan.org #perlbrew on twitter
Development http://perlbrew.pl Documentation / Updates A static version of github
Wiki
Thank You