The documentation has a nice example showing how to run an external
program and how to get its output or even its standard error.
https://docs.perl6.org/type/Proc
However it looks a lot more complex than the plain backtick Perl 5 has
and more complex than the capture function of Capture::Tiny.
IMHO it is way too much code.
I wrote a simple function wrapping it:
sub capture(*@args) {
my $p = run @args, :out, :err;
my $output = $p.out.slurp: :close;
my $error = $p.err.slurp: :close;
my $exit = $p.exitcode;
return {
out => $output,
err => $error,
exit => $exit;
};
}
It can be used as:
my $res = capture($*EXECUTABLE, 'bin/create_db.pl6');
say $res<out>;
or even
say capture($*EXECUTABLE, 'bin/create_db.pl6')<out>;
I wonder if I have just invented something that already exist in
Rakudo or if it is not there, then wouldn't it be a good idea to add
such a simple way to run external commands?
regards
Gabor
ps. Backtick actually expected a single string and not a list of
parameters and supporting that mode, even if it is less secure, might
be also a good idea.
