@INC package location

[malaga]

Is there a place besides @INC where a package can be uploaded and accessed? (no access to @INC) Thanks.

[Zaxo]

use lib '/home/me/lib';

That changes @INC to include a place you can write to. The environment variable PERL5LIB is also helpful.

After Compline,
Zaxo

[baphomet]

You can change the contents of @INC on a per-program basis in a couple of ways. Either:

use lib qw( /some/dir );

or, something like:

BEGIN
{ 
    push @INC, "/some/dir";
}

Of course, @INC will likely contain the directory from which your program was started. Thus, you should be able to use/require modules that reside in the same directory as your script.

baphomet.

[strat]

To combine scripts and (self-written) modules in relative directories, I like to do something like the following:

BEGIN {
  use FindBin qw($Bin);  # get actual path of this script
  use lib "$Bin/../lib"; # add path/../lib/ to @INC
  use ModuleXY;          # load module ModuleXY.pm from lib
} # BEGIN

e.g. if a script is in .../myScript/bin/ and the modules are in .../myScript/lib/
I use it a lot unter Win2k, Linux and Solaris, and it works great.

Best regards,
perl -e "s>>*F>e=>y)\*martinF)stronat)=>print,print v8.8.8.32.11.32"

[malaga]

I wouldn't think that, but I wasn't sure what was meant by this:

"Of course, @INC will likely contain the directory from which your program was started. Thus, you should be able to use/require modules that reside in the same directory as your script."

So I asked.

Thanks for the help.

[IlyaM]

Normally @INC contains '.' (i.e. current directory). So usually Perl programs can access perl modules in directory from which they were started.

For example output of perl -V on my computer:

bash-2.05a$ perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuratio
+n:
.....
.....
.....
Characteristics of this binary (from libperl):
  Compile-time options: USE_LARGE_FILES
  Built under linux
  Compiled at Jan 11 2002 04:09:18
  @INC:
    /usr/local/lib/perl/5.6.1
    /usr/local/share/perl/5.6.1
    /usr/lib/perl5
    /usr/share/perl5
    /usr/lib/perl/5.6.1
    /usr/share/perl/5.6.1
    /usr/local/lib/site_perl
    .
   ^^^ - note this dot

--
Ilya Martynov (http://martynov.org/)

[malaga]

So if I use use lib I lose access to @INC? Is it one or the other? Thanks.

[crazyinsomniac]

Why would you think that?

It's not a secret, perldoc lib

NAME
    lib - manipulate @INC at compile time

SYNOPSIS
        use lib LIST;

        no lib LIST;

DESCRIPTION
    This is a small simple module which simplifies the manipulation of
+ @INC
    at compile time.

    It is typically used to add extra directories to perl's search pat
+h so
    that later "use" or "require" statements will find modules which a
+re not
    located on perl's default search path.

  Adding directories to @INC

    The parameters to "use lib" are added to the start of the perl sea
+rch
    path. Saying

        use lib LIST;

    is *almost* the same as saying

        BEGIN { unshift(@INC, LIST) }

    For each directory in LIST (called $dir here) the lib module also 
+checks
    to see if a directory called $dir/$archname/auto exists. If so the
    $dir/$archname directory is assumed to be a corresponding architec
+ture
    specific directory and is added to @INC in front of $dir.

    To avoid memory leaks, all trailing duplicate entries in @INC are
    removed.

  Deleting directories from @INC

    You should normally only add directories to @INC. If you need to d
+elete
    directories from @INC take care to only delete those which you add
+ed
    yourself or which you are certain are not needed by other modules 
+in
    your script. Other modules may have added directories which they n
+eed
    for correct operation.

    The "no lib" statement deletes all instances of each named directo
+ry
    from @INC.

    For each directory in LIST (called $dir here) the lib module also 
+checks
    to see if a directory called $dir/$archname/auto exists. If so the
    $dir/$archname directory is assumed to be a corresponding architec
+ture
    specific directory and is also deleted from @INC.

  Restoring original @INC

    When the lib module is first loaded it records the current value o
+f @INC
    in an array "@lib::ORIG_INC". To restore @INC to that value you ca
+n say

        @INC = @lib::ORIG_INC;

SEE ALSO
    FindBin - optional module which deals with paths relative to the s
+ource
    file.

AUTHOR
    Tim Bunce, 2nd June 1995.

perlfaq-q INC

  How do I add a directory to my include path at runtime?

            Here are the suggested ways of modifying your include path
+:

                the PERLLIB environment variable
                the PERL5LIB environment variable
                the perl -Idir command line flag
                the use lib pragma, as in
                    use lib "$ENV{HOME}/myown_perllib";

            The latter is particularly useful because it knows about m
+achine
            dependent architectures. The lib.pm pragmatic module was f
+irst
            included with the 5.002 release of Perl.

How To Read The Friendly Manual which has at least 90% of all the answers

 


______crazyinsomniac_____________________________ Of all the things I've lost, I miss my mind the most. perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"