Hi,

I want to implement the following logic:

  1. check for the availability of a module
  2. if not available, install it from cpan
  3. if install fails bail out

For installing modules I currently use CPAN->install which has the problem that if I run it with a module I already have it updates it (so I need to check first) and I don't seem to get any indication wether or not the install succeeded, so I am forced to do something like this:

eval {
require "Some::Module";
};
if($@) {  # need to install
  CPAN->install("Some::Module");
  eval { require "Some::Module" };   # check if we have it now
  if($@) { print "installation failed" }
}
};

[download]
Furthermore some module-installations prompt for input (e.g. "do you want to run extra-tests?" etc) that I would like to supress.

What is the proper way to do this?

In reply to Programmatically installing modules by morgon

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