[swift-build-dev] Swift Package Manager - Support for downloading/installing external dependencies that a Swift Package may have
Ricardo N Olivieri
ricardo.olivieri at us.ibm.com
Tue Jan 26 11:47:48 CST 2016
Thanks Max for your answer. To your point, thinking about it more, it's
probably not a great idea to have SPM execute arbitrary scripts.
It is good news to hear that something similar to option #1 could be
implemented and that there are plans to provide something as part of SPM
that can take of installing/downloading external [non-Swift package]
dependencies that a Swift Package may depend on.
Does providing this functionality in SPM have a high priority? Any other
details about the plans for this feature that could be shared at this
From: Max Howell <max.howell at apple.com>
To: Ricardo N Olivieri/Austin/IBM at IBMUS
Cc: swift-build-dev at swift.org
Date: 01/25/2016 06:53 PM
Subject: Re: [swift-build-dev] Swift Package Manager - Support for
downloading/installing external dependencies that a Swift Package may have
Sent by: max.howell at apple.com
Yes, we plan to provide something here.
1) Swift Packages can specify dependencies on other libraries that are not
Swift Packages (such as C libraries). The Swift Package Manager could then
"parse" this metadata, download and install the corresponding dependencies
on the system (e.g. by executing apt-get or similar commands). This could
be part of the Packages.swift file or a new file for specifying
dependencies that are not Swift Packages.
It couldn’t really be this simple, but we can do something like this.
2) Define a naming convention for a script that, if found inside a Swift
Package, is executed by the Swift Package Manager. This script could
contain any set of instructions that should be executed as part of the
installation of the Swift Package, such as downloading and installing any
dependencies that the Swift Package needs. For instance, such a file could
include instructions similar to those found here:
We don’t intend to execute arbitrary scripts.
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