Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Sadly, despite all this back and forth I still don't get your point.

Because having to use bash -c'cd .. ; ./Build test' to run a single test is not right.

M:B lets the distro writer put custom paths in @INC to make the automated build-test-install cycle run more smoothly. You are not an automaton. If you don't want to take advantage of the fact that M:B automatically puts the right paths into @INC, then put the paths yourself into PERL5LIB. Then you don't need to cd to any directory at all. Nor do you need to run "./Build" or make or any other harness.

If your script wasn't buggy in the first place...

This is post is not about buggy scripts and never has been. The issue at hand is how to configure M:M so that files that are needed for testing/building are available in @INC but don't end up getting installed at runtime.

M:B manages to provide a 100% portable way to put such files in a distro subdir of the distro-writer's choosing. It ensures that they will be available for test/build but does not install them to system/site directories after testing is complete. They stay put in the distro.

M:M is very rigid about how to handle such modules and it forces programmers into what I consider problematic or questionable practices:

  • Compensating for the hardcoded @INC by putting "use lib" all over test scripts raises separation of concern issues.
  • Rooting "build/test but not runtime" modules in the distro root is just ugly and interferes with automation.
  • Adding a line to the Makefile to insert a directory into PERL5LIB is not universally portable.
  • Running tests via a test harness ( and moving tests to "tests" enables "make test" to work fine but borks "./Build test". The tests all run and pass, but Build never sees the TAP output. Maybe there is a solution to this, but I'm still looking for it.

If you really want to be helpful, propose a solution that uses ExtUtils::MakeMaker to run make file commands, doesn't interfere with M:B, is 100% portable, respects separation of concerns (no confusing operational code with the configuration needs of a specific environment), and ensures that files meant for build/test but not runtime never leave the distro.

In reply to Re^6: Do Pure Perl CPAN packages really need to use ExtUtils::Command::MM? by ELISHEVA
in thread Do Pure Perl CPAN packages really need to use ExtUtils::Command::MM? by ELISHEVA

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others taking refuge in the Monastery: (6)
    As of 2018-03-21 13:20 GMT
    Find Nodes?
      Voting Booth?
      When I think of a mole I think of:

      Results (267 votes). Check out past polls.