Re: [tycho-user] Reduce time for building various products

[Axel Guckelsberger <info@xxxxxxxx>]

Hello,

actually this is not a matter of Tycho, Maven or any other specific 
technology, but rather relates how you structure your builds.

I am using the following approach for a few years now:

Each single feature lives in it's own Git repository, including the 
feature itself, all included bundles and releng stuff.
Also the CI server has a dedicated job for each single feature.
Additionally, there are separate jobs for building and deploying the 
products.

As a result, if a feature A or a product X require a feature B, they 
just consume it like any other requirement.

Luckily, Tycho allows combining the target platform with additional 
repositories. So in the parent POM of feature A you can add something 
like:

<repositories>
    <repository>
        <id>feature-b</id>
        <url>file://${featureB.repository}</url>
        <layout>p2</layout>
    </repository>
</repositories>

Any CI job for feature A triggers all jobs for other components 
depending on A.


So whenever you change anything in feature B (to keep this example) only 
the jobs for feature B, feature A and product X are executed.


HTH,
Axel


Am 2019-03-22 08:51, schrieb Quang Nguyen:
> We are building our RCP Application with Tycho. In the aggregator
> pom.xml we listed all of the features and plugins as modules what we
> have. With the structure and configuration of the project we can build
> different product for diverse customers.
>
> The issue is, whenever we build a small(less features) or big
> product(more feature) tycho comsumes nearly constant of time because
> it builds all the modules we have in the pom.xml firstly. With
> following command we build a product:
>
> mvn clean verify -Dproduct=pathToProduct
>
> How can we optimize the build process with tycho that we only build
> the dependencies what is listed in the .product file and the required
> plugin listed in feature.xml of each feature folder? Doesn't tycho try
> to read the feature.xml file to determinate what dependencies is
> needed?
>
> Maybe does some one have a reference implementation or solution to
> solve this issue?
>
> Best regards,
>
> Quang Nguyen
>
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