Re: [Pharo-users] How to load a single package in a Metacello baseline

Feb. 19, 2019

      Yeah - I have a similar issue with ExternalWebBrowser, which I load as:

spec
		baseline: 'ExternalWebBrowser'
			with: [ spec
				repository: 'github://seandenigris/Pharo-Web-Browser:master/repository' ];
		import: 'ExternalWebBrowser'.

That drags in BabyMock and huge raft of tests (which Iâm grateful were written), but Iâd prefer not to muddy the waters when presenting Exercism.

I think what we have to do is submit pull requests to these projects such that they create better baselines with Groups. Eg. The Exercism baseline does this so that students load core, but developers get extra tools to generate exercises - eg.

		spec
				package: 'Exercism'
					with: [ ];
				package: 'ExercismDev'
					with: [ spec requires: #('Exercism' 'ExercismTools')];
				package: 'ExercismTools'
					with: [ spec requires: #('OSProcess' 'ExternalWebBrowser') ];
				group: 'default'
					with:
					#('ExercismTools');
				group: 'dev'
					with:
					#('ExercismDevâ)]

Then you can specify in your load request which group to use (I donât have the syntax handy for baselines, but when you load via iceberg, the Metacelle menu has a second option where you specify the group to use, so Iâm sure it can be done in code too).

Iâd be interested if there is some way to do it without groups though, so that you donât have to rely on the package authors to do this (similar in thought to what Sabine is complaining about by not being able to better control version dependencies).

This whole area is becoming more and more important as we grow up and what to have more controllable load characteristics.

Tim
...
On 19 Feb 2019, at 11:13, N. Bouraqadi <bouraqadi@gmail.com> wrote:
Hi,
I'm updating the the baseline of PharoJS to use the zinc websockets from the github repo https://github.com/svenvc/zinc <https://github.com/svenvc/zinc>.  I want to load package Zinc-WebSocket-Core.  So, in BaselineOfPharoJS>>#baseline: I've defined 
spec baseline: 'ZincHTTPComponents' with: [
                spec
                    loads: #('Zinc-WebSocket-Core');
                    repository: 'github://svenvc/zinc <github://svenvc/zinc>' ].
However, for some reason I get Zinc-WebSocket-Tests loaded. Any hint how to avoid it?(edited)
Looking at BaselineOfZincHTTPComponents>>#baseline:, package WebSocket-Core does not seem to depend on tests 
spec package: 'Zinc-WebSocket-Core' with: [ spec requires: 'Zinc-HTTP' ]
Thanks,
Noury

Re: [Pharo-users] How to load a single package in a Metacello baseline

Tim Mackinnon