In 2015, the Perl "State of the Velociraptor" keynote was delivered as a series of lightning talks by community members. I was asked to speak about the Perl Toolchain and the Perl QA Hackathon. I covered the CPAN River (http://neilb.org/tag/cpan-river/) and the Berlin Consensus (http://cpan.io/ref/toolchain/berlin-consensus.html) recommendations for CPAN Standards of Care.

1. State of the
PerlToolchain
David Golden David Golden
Senior Engineer, MongoDB
YAPC::NA 2015

2. Toolchain:
Tools for downloading, building,
testing and installing Perl modules
(dual-life and popular alternatives)

3. "River Biya. Russia" © Dmitri Melnikov (PD)

4. water pollution: garbage covers a river in Jakarta, Indonesia, Photograph, from Britannica Online for Kids, accessed June 5, 2015, http://kids.britannica.com/comptons/art-109541.

5. Berlin QA Hackathon:
CPAN River Analogy

6. ~50 10,000+
~200 1000 – 9,999
~2,000 10 – 999
~8,000 1 – 9
~16,000 0
# dists on CPAN # deep dependents
UP-RIVER
DOWN-RIVER

7. DarkPAN?

8. "Point source pollution" © Alex Rio (PD)

9. ~50 10,000+
~200 1000 – 9,999
~2,000 10 – 999
~8,000 1 – 9
~16,000 0
# dists on CPAN # dists downriver
OOPS!
DID ANYONE SEE THAT?

10. ~50 10,000+
~200 1000 – 9,999
~2,000 10 – 999
~8,000 1 – 9
~16,000 0
# dists on CPAN # dists downriver
OOPS!
I BROKEYOUR APPS!

12. ~50 10,000+
~200 1000 – 9,999
~2,000 10 – 999
~8,000 1 – 9
~16,000 0
# dists on CPAN # dists downriverOMG!
I BROKE CPAN!

13. OMG! I broke Strawberry
Perl Portable!"Rotting Strawberry" © Kevin Payravi,Wikimedia Commons (CC BY-SA)

14. Unintended
consequences

15. Time to clean
up our river

16. Toolchain Charter

17. 1. Support every Perl from 5.8.1

18. 2. More than one maintainer

19. 3. More than one set of eyes on
changes before shipping

20. 4. Discuss major changes on the
cpan-workers mailing list

21. 5. Perl pumpking breaks ties

22. 6. Verify stability in some way
before shipping non-alpha

24. 7. Toolchain authors will jointly
pick successor maintainers

25. Other changes, now or later
• Now: PAUSE adoption rules
• Later: CPANTesters: dependency fail reports
• Later: CPAN River statistics for authors

26. Berlin Consensus
j.mp/cpanriver

27. "River Biya. Russia" © Dmitri Melnikov (PD)