CPAN: Any way to (quickly) list all the dependency modules to download?

sectokia has asked for the wisdom of the Perl Monks concerning the following question:

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Re: CPAN: Any way to (quickly) list all the dependency modules to download? by choroba (Cardinal) on Apr 22, 2022 at 09:50 UTC
Try deps on CPAN Testers. Pay attention to capitalisation, the module is called AnyEvent::WebSocket::Server (capital S in WebSocket). `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]
Re: CPAN: Any way to (quickly) list all the dependency modules to download? by haukex (Archbishop) on Apr 22, 2022 at 09:45 UTC
Perhaps my script here can help? depend.pl It uses the MetaCPAN API, but AFAIK there are some modules that don't declare their dependencies statically, so you can't find out about those until you actually try to install the module. Read more... example output (1021 Bytes)	[reply] [d/l]
Re: CPAN: Any way to (quickly) list all the dependency modules to download? by marto (Cardinal) on Apr 22, 2022 at 10:15 UTC
As a side note to what has already been mentioned, cpanm is faster than cpan, especially on systems with limited/slow resources (e.g. Raspberry Pi/embedded systems). The deprecated scandeps method may be of interest, but it isn't complete for reasons stated in existing responses: `cpanm --scandeps AnyEvent::WebSocket::Server => Found dependencies: AnyEvent::Handle, AnyEvent::Socket AnyEvent-WebSocket-Server-0.10 \_ Test-Memory-Cycle-1.06 \_ Devel-Cycle-1.12 \_ PadWalker-2.5 \_ AnyEvent-WebSocket-Client-0.54 \_ Protocol-WebSocket-0.26 \_ PerlX-Maybe-1.202 \_ Canary-Stability-2013 \_ AnyEvent-7.17 \_ AnyEvent-Connector-0.03` [download] See also App::cpm.	[reply] [d/l]
Re: CPAN: Any way to (quickly) list all the dependency modules to download? by syphilis (Archbishop) on Apr 22, 2022 at 11:18 UTC
I recently tried to install AnyEvent::Websocket::Server though CPAN and after hours it was still downloading and compiling modules Heh ... did you then find that AnyEvent::Websocket::Server had, in fact, been installed christ-knows-how-many-modules-back ? That's the variant that really annoys me. It's happened to me a couple of times in the past - the last time being about 4 days ago (on MS Windows) wrt Math-Calc-Parser-1.005. I don't know if that was actually the fault of that module but I find it very annoying when it happens - especially when much of the supplementary stuff is (regarded by me as being) sanctimonious shit, as is usually the case. Update: Sorry for the rant at the end. Long dependency chains always irritate me more than they ought. Cheers, Rob	[reply]