add aliases for standard repositories

[scottdraves]

%classpath add mvn de.mpicbg.scicomp:krangl:0.7

[scottdraves]

dup of #6954
?

[holgerbrandl]

Maybe It fails to load because it's deposited on jcenter and not on maven central?
Central artifacts are working totally fine for me when using %classpath add

[jaroslawmalekcodete]

Hi
to fix your problem just try to add all yours repositories by magic command as below

Tip: look at https://github.com/jitpack/jitpack.io#publishing-on-jitpack and "Some extras to consider"

[holgerbrandl]

Cool thanks, what about mvn local or jcenter. Are there resolvers for these as well? Like

%classpath config resolver mvnlocal

Especially test changes locally, this would be super useful.

[holgerbrandl]

Found half of the answer myself in a recent comment o #6583. To add the local maven cache, the user needs to configure a resolver with:

%classpath config resolver local file:/Users/joe/.m2/repository

Not sure why file:/Users/joe/.m2/repository is not the default, though?

[scottdraves]

Cool. It's not the default because unfortunately maven doesn't support concurrent access, so if we used the default location then the user could break BeakerX if they were doing development in a terminal or IDE at the same time as running BeakerX. See #6340.

I do like your idea for a mvnlocal resolver, will try to get it in the next release: #6986.

[holgerbrandl]

Thanks.

Users may want to fetch such dependencies from jcenter. E.g. the above mentioned krangl is hosted there. Is there a dedicated resolver for jcenter as well?

[scottdraves]

There isn't, but I don't mind adding a shortcut to jcenter, like gradle has, so you don't have to type or remember the URL. Is there a list of all/most such repositories that we can just pull in? I don't really want to the maintainer and arbiter of such a thing.

[holgerbrandl]

Not sure, but https://docs.gradle.org/current/userguide/repository_types.html#sub:maven_jcenter seems a good reference.

[jpallas]

If there are built-in aliases, maybe also jitpack?

[scottdraves]

this makes me think, is it be possible to support `%gradle` and be done with it?