On 2020-06-07 14:40, Peter Pentchev wrote:
On Mon, Jun 08, 2020 at 12:26:42AM +0300, Peter Pentchev wrote:
On Mon, Jun 08, 2020 at 12:21:22AM +0300, Peter Pentchev wrote:
On Sun, Jun 07, 2020 at 01:57:11PM -0700, ToddAndMargo via perl6-users wrote:
On 2020-06-07 13:53, Peter Pentchev wrote:
$path = 'lib1'.IO.d ?? 'lib1' !! 'lib2';
Got it! Thank you!
I am not seeing the above enter the proper syntax:
'lib1', 'lib2' etc.
Where is the comma? How are the single quotes entered?
I don't understand what you are asking. The above checks whether
a directory exists and, depending on the result of this check, assigns
one of two values to a variable. I don't know what comma you are talking
about.
Wait, I think I got it. You're asking about the line underneath, the one
that you did not quote in this message, the line that says:
use lib $path;
"use lib" expects you to pass a string (or more strings). 'c:/NtUtil' is
a string. $path is a variable that holds a string. "use lib $path"
calls "use lib" and passes to it the string in the variable $path.
So to be a bit more clear, in your case you have a path that you always
need to pass ('c:/something') and another one that you want to pass only
if it exists. OK, so maybe something like:
my @path;
BEGIN {
for ('K:/NtUtil', 'X:/NtUtil') -> $candidate {
push @path, $candidate if $candidate.IO.d;
}
push @path, 'C:/NtUtil';
}
use lib @path;
Maybe something like that will work for you.
G'luck,
Peter
Hi Peter,
That worked. Thank you!
Apparently I do not need the BEGIN. What was it's
utility?
~~~~~~~~~~~~~~~~~~~~~
#!/usr/bin/env raku
BEGIN {
for ('K:/NtUtil', 'X:/NtUtil') -> $candidate {
push @path, $candidate if $candidate.IO.d;
}
push @path, 'C:/NtUtil';
push @path, '.';
}
use lib @path;
dd @path;
dd $*REPO.repo-chain.lines;
~~~~~~~~~~~~~~~~~~~~~~~~~~
raku use.lib.test.pl6
Array @path = ["K:/NtUtil", "C:/NtUtil", "."]
("K:\\Windows\\NtUtil C:\\NtUtil K:\\NtUtil C:\\Users\\tony\\.raku
C:\\rakudo\\share\\perl6\\site C:\\rakudo\\share\\perl6\\vendor
C:\\rakudo\\share\\perl6\\core
CompUnit::Repository::AbsolutePath<127518976>
CompUnit::Repository::NQP<126192040>
CompUnit::Repository::Perl5<126192080>",).Seq
-T
