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POHow can I "use lib" the appropriate directory depending on installation location?
 

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  1. POHow can I "use lib" the appropriate directory depending on installation location?
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    <p>I have an object-oriented web-app that is installed in multiple locations on my server. Once for "live", once for "beta", etc. Being object-oriented, it consists of many perl modules. In the main module, I must "use lib" the appropriate directory for all of the <em>custom</em> perl modules for that instance of the app.</p> <p>This is no big deal, I have a BEGIN block that checks the location of the main program and sets the library directory appropriately. However I also have a lot of utility, command line programs that need to do the same thing. I don't want to cut and paste this code everywhere.</p> <p>What is the best way to share this code snippet amongst the various programs that need it? </p> <p>I can't "use" it because the libary path isn't set up yet. Maybe "do" or "require" would the be the right answer, but both of those will search @INC, which is inappropriate. </p> <p>Maybe something like <code>eval `cat GetLib.pl`;</code> would be appropriate but it seems kind of clunky and fragile.</p> <p>Here is the BEGIN block that I currently use:</p> <pre><code>BEGIN { use FindBin qw ($Bin); require lib; if ($Bin =~ /^\/home\/w\/myapp_live/) { lib-&gt;import('/home/w/myapp_live/lib'); print STDERR "live site\n"; } if ($Bin =~ /^\/home\/w\/myapp_beta/) { lib-&gt;import('/home/w/myapp_beta/lib'); print STDERR "beta site\n"; } if ($Bin =~ /^\/home\/w\/myapp_test/) { lib-&gt;import('/home/w/myapp_test/lib'); print STDERR "testing site\n"; } } </code></pre> <p>Thank you!</p>
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    1. COAs I implied in my response, I think you're asking the wrong question here, because you're making life more difficult for you than it should be. Your code should reside in the same path at all times -- it's in your revision control system where you differentiate between "live" and "beta" code.
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    2. COEther: How can the live and beta code reside in the same path when they are both running on the same server?
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    3. COhttp://search.cpan.org/perldoc/perlfaq8#How_do_I_add_a_directory_to_my_include_path_(@INC)_at_runtime?
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