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Predicate pack_install/2
Availability::- use_module(library(prolog_pack)).(can be autoloaded)
Source[det]pack_install(+Name, +Options)
Install package Name. Processes the options below. Default options as would be used by pack_install/1 are used to complete the provided Options.
url(+URL)
Source for downloading the package
package_directory(+Dir)
Directory into which to install the package
interactive(+Boolean)
Use default answer without asking the user if there is a default action.
silent(+Boolean)
If true (default false), suppress informational progress messages.
upgrade(+Boolean)
If true (default false), upgrade package if it is already installed.
git(+Boolean)
If true (default false unless URL ends with =.git=), assume the URL is a GIT repository.

Non-interactive installation can be established using the option interactive(false). It is adviced to install from a particular trusted URL instead of the plain pack name for unattented operation.

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Chris Mungall said (2018-08-11T12:49:05):0 upvotes 0 0 downvotes
Picture of user Chris Mungall.

The upgrade option doesn't appear to work:

?- pack_install(pubmed, [upgrade(true)]).
% Contacting server at http://www.swi-prolog.org/pack/query ... ok
% Pack `pubmed' is already installed @0.0.1
true.

This is despite 0.0.4 of pubmed being available

Kilian Evang said (2014-05-20T11:02:35):0 upvotes 0 0 downvotes
Picture of user Kilian Evang.

"Use default answer without asking the user if there is a default action."

->

"If false (default is true), use default answer without asking the user if there is a default action."

?