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All the Perl that's Practical to Extract and Report

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When a 99% solutions works, and when it doesn't 3 Comments More | Login | Reply /

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  • It might be worth mentioning that when Miyagawa developed cpanminus one of the test cases he used was installing my wiki MojoMojo, the heaviest app on CPAN according to your Heavy 100 index. Thus the actual number is probably higher than 99%, or at least the 1% would be in an obscure corner of the CPAN.
    • It looks like 273 dependencies [cpantesters.org] (be patient) (which together guarantee its failure to install). This is nothing close to 99% of CPAN, which contains 8020 authors and 17538 modules [cpan.org]. As Sage Mencken declared [brainyquote.com], "For every complex problem there is an answer that is clear, simple, and wrong." Translated into the modern vernacular, "clear" means "99%."
      • Was just replying to Alias's claim:

        With a 99% success rate (using stupidly naive "statistics") every single module on that Top 100 list will fail to install. In a large system with lots of recursive dependencies, it doesn't take much for your install count to grow to 20 or 50 or 100 dependencies.

        Given that logic, and the fact that the top module on that list passes, cpanm would have to work with more than 99% of cpan (or only be broken for very little used modules). I'm quite aware that MojoMojo does depend on most of cpan. I think the 273 dependencies we have is quite sufficient. (and a bit over 1% of the total number of CPAN modules :)

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