The document discusses issues related to managing Perl module dependencies using CPAN, highlighting problems like 'can't locate module' errors and proposing solutions such as using 'cpanm' and creating self-contained installers. It emphasizes the importance of building a personalized CPAN experience, including utilizing tools like 'cpan::mini' and 'app::cpackage' for simplified installation and dependency management. The text ultimately advocates for a seamless installation experience for Perl modules, ensuring that all necessary dependencies are included.

1. CPAN Dependency
Heaven
Jon
Allen
(JJ)
–
jj@opusvl.com

2. www.opusvl.com!

3. CPAN
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4. perl myscript.pl
Can't locate SomeModule.pm in
@INC (@INC contains: /Users/jj/
perl/perl-5.14.1/lib/site_perl/
5.14.1/darwin-2level /Users/jj/
perl/perl-5.14.1/lib/site_perl/
5.14.1 /Users/jj/perl/
perl-5.14.1/lib/5.14.1/
darwin-2level /Users/jj/perl/
perl-5.14.1/lib/5.14.1 .) ...
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5. perl myscript.pl
Can't locate OtherModule.pm in
@INC (@INC contains: /Users/jj/
perl/perl-5.14.1/lib/site_perl/
5.14.1/darwin-2level /Users/jj/
perl/perl-5.14.1/lib/site_perl/
5.14.1 /Users/jj/perl/
perl-5.14.1/lib/5.14.1/
darwin-2level /Users/jj/perl/
perl-5.14.1/lib/5.14.1 .) ...
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6. CPAN
Dependency
Hell
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7. www.opusvl.com!

8. solved
problem?
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9. cpanm"
local::lib
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10. bootstraps
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11. curl -L"
http://cpanmin.us |"
perl - --self-upgrade
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13. DarkPAN
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14. DarkPAN
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15. DarkPAN
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16. DarkPAN
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17. DarkPAN
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18. all your code
not on CPAN
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19. rpm?"
deb?
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20. token Mac user
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21. token Windows
user
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22. not cross-
platform
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23. use CPAN
packaging
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24. build your own
CPAN
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25. CPAN::Mini
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26. CPAN::Mini::Inject
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27. can be tricky "
to use
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28. build your own
PAUSE
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29. CPAN::Mini::"
Inject::REST
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30. REST API for
CPAN::Mini::Inject
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31. inject modules
remotely
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32. supports
authentication
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33. enforces
version
changes
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34. client?
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35. CPAN::Mini::"
Inject::REST::"
Client
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36. command-line
app
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37. workflow
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38. build CPAN
package
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39. perl Makefile.PL"
make"
make dist
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40. upload to your
CPAN
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41. mcpani-client"
add "
--host cpan.local"
MyModule-0.1.tar.gz
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42. install
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43. cpanm --mirror "
http://cpan.local "
--mirror-only
My::Module
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44. easily mix local
and CPAN
dependencies
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45. distribution
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46. Elaine’s Law
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47. “Just make it
fucking easy to
install!”
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48. App::cpackage
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49. creates install
packages for
Perl modules
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50. self-contained
(dependencies
included)
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51. very simple
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52. someone else
did the hard
work!
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53. www.opusvl.com!

54. thin wrapper
around
cpanminus
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55. analyses
dependencies
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56. downloads
dependencies
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57. writes install.pl
script
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58. cpanm
App::cpackage
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59. cpackage
Module::Name
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60. cpackage "
--mirror "
http://cpan.local "
--mirror-only
My::Module
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61. ./packages/…"
./bin/cpanm"
./install.pl
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62. perl install.pl
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63. perl install.pl"
--sudo
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64. no internet
required
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65. no CPAN client
required
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66. self-contained
installer
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67. CPAN
Dependency
Heaven
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68. done.
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69. done. :-)
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70. www.opusvl.com!