Michael Holler created KAFKA-9060:
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Summary: Publish BOMs for Kafka
Key: KAFKA-9060
URL: https://issues.apache.org/jira/browse/KAFKA-9060
Project: Kafka
Issue Type: Improvement
Reporter: Michael Holler
Hey there! Love the project, but I would love it if there was a BOM file that
is published for each version. If you're not familiar with a BOM, it stands for
"Bill of Materials" it helps your Gradle (in my case, but it's originally a
Maven thing) file look like this (using JDBI's implementation as an example):
dependencies {
implementation(platform("org.jdbi:jdbi3-bom:3.10.1"))
implementation("org.jdbi:jdbi3-core")
implementation("org.jdbi:jdbi3-kotlin")
implementation("org.jdbi:jdbi3-kotlin-sqlobject")
implementation("org.jdbi:jdbi3-jackson2")
}
Instead of this:
val jdbiVersion by extra { "2.6.1" }
dependencies {
implementation("org.jdbi:jdbi3-core:$jdbiVersion")
implementation("org.jdbi:jdbi3-kotlin:$jdbiVersion")
implementation("org.jdbi:jdbi3-kotlin-sqlobject:$jdbiVersion")
implementation("org.jdbi:jdbi3-jackson2:$jdbiVersion")
}
Notice how you just leave the versions off when you use a BOM. This can help
reduce the number of dependency compatibility surprises one can encounter,
especially if a transitive dependency brings in a newer version of one of the
components (it'll be reduced to the BOM's version). Note also that you still
have to list dependencies you want with a BOM, just not the versions.
Here's a deeper dive into how a BOM works:
https://howtodoinjava.com/maven/maven-bom-bill-of-materials-dependency/
The Maven help site also has a section on it (Ctrl+F for "BOM"):
https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html
I think BOMs would be a great for the users of the Kafka project because there
are lots of Kafka libraries (streams, connect-api, connect-json, etc) that
require the same version as other Kafka dependencies to work correctly. BOMs
were designed for exactly this use case.
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