Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I inherited a win (2003) perl (5.16.2) build script combining steps in a build process for multiple apps. For one of the apps we build with Gradle.
I'm having a difficult time with the environment setup. Here's a snip...
if ($pvob eq "XYZ"){...} else { open("..\\abc-env\\setenv.cmd"); system(set); system("gradle"); ...}
I know that the open is in one (session/stream/fork/process?) and that as soon as it returns, all the environment it has just set is lost. I did the "system(set)" to confirm that point.
So when I execute the "gradle" it fails because there isn't anything in the env session where the system("gradle") is executed.
I read the "open()" perl doc and it looked like maybe you could create a pseudo filehandle that could be reused later in the calling script. But that sounded too good to be true. if so, syntax? Redirect or pipe new command into the filehandle?

I understand what open() or system() etc. is doing, but I've never really understood how to work with the configuration of such a temporary environment. The env is set for each build target so setting it at the os level doesn't really work for me in this case.

Any suggestions for getting the env variables to be persistent from within the build script would be appreciated.
(Or I suppose, help with syntax on stringing together the commands in the same open()?). This script has never worked for this app. (btw first thing I did was put in use strict and warnings so if you've taught me nothing, you've taught me that.)

In reply to config env script help building gradle from perl script (system/open tips needed) by gj2666

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
    [Corion]: Yay. Traditional finance situation averted. Bonds can be quoted in amounts (1_000_000 EUR) or per unit (1 unit). And a traditional error is to trade 2_000_000 piece when you meant to trade 2_000_000 EUR.
    [Corion]: (one of my scripts simply catches high amounts and I phone people making that trade, ideally before the payment is due)
    [Corion]: The sad thing is that my script sits at the end of the pipeline and can only look at the payments due today or tomorrow basically, while there are many more systems further up in the pipeline
    [GotToBTru]: better late than never, I guess
    [Corion]: GotToBTru: Sure - there is a long and sad story of many frantic cleanups that led us to implement this notification ;)

    How do I use this? | Other CB clients
    Other Users?
    Others lurking in the Monastery: (10)
    As of 2017-03-29 11:32 GMT
    Find Nodes?
      Voting Booth?
      Should Pluto Get Its Planethood Back?

      Results (347 votes). Check out past polls.