jvm_artifact
A third-party JVM artifact, as identified by its Maven-compatible coordinate.
That is, an artifact identified by its group
, artifact
, and version
components.
Each artifact is associated with one or more resolves (a logical name you give to a lockfile). For this artifact to be used by your first-party code, it must be associated with the resolve(s) used by that code. See the resolve
field.
Backend: pants.backend.experimental.java
artifact
str
The 'artifact' part of a Maven-compatible coordinate to a third-party JAR artifact.
For the JAR coordinate com.google.guava:guava:30.1.1-jre
, the artifact is guava
.
group
str
The 'group' part of a Maven-compatible coordinate to a third-party JAR artifact.
For the JAR coordinate com.google.guava:guava:30.1.1-jre
, the group is com.google.guava
.
version
str
The 'version' part of a Maven-compatible coordinate to a third-party JAR artifact.
For the JAR coordinate com.google.guava:guava:30.1.1-jre
, the version is 30.1.1-jre
.
description
str | None
None
A human-readable description of the target.
Use pants list --documented ::
to see all targets with descriptions.
exclusions
Iterable[pants.jvm.target_types.JvmArtifactExclusion] | None
None
A list of exclusions for unversioned coordinates that should be excluded as dependencies when this artifact is resolved.
This does not prevent this artifact from being included in the resolve as a dependency of other artifacts that depend on it, and is currently intended as a way to resolve version conflicts in complex resolves.
Supported exclusions are:
jvm_exclude
: Exclude the givenartifact
andgroup
, or all artifacts from the givengroup
.
force_version
bool
False
Force artifact version during resolution.
If set, pants will pass --force-version
argument to coursier fetch
for this artifact.
jar
str | None
None
A local JAR file that provides this artifact to the lockfile resolver, instead of a Maven repository.
Path is relative to the BUILD file.
Use the url
field for remote artifacts.
jdk
str | None
None
The major version of the JDK that this target should be built with. If not defined, will default to [jvm].default_source_jdk
.
main
str | None
None
.
-separated name of the JVM class containing the main()
method to be called when executing this target. If not supplied, this will be calculated automatically, either by inspecting the existing manifest (for 3rd-party JARs), or by inspecting the classes inside the JAR, looking for a valid main
method. If a value cannot be calculated automatically, you must supply a value for run
to succeed.
packages
Iterable[str] | None
None
The JVM packages this artifact provides for the purposes of dependency inference.
For example, the JVM artifact junit:junit
might provide ["org.junit.**"]
.
Usually you can leave this field off. If unspecified, Pants will fall back to the [java-infer].third_party_import_mapping
, then to a built in mapping (https://github.com/pantsbuild/pants/blob/release_2.21.2rc2/src/python/pants/jvm/dependency_inference/jvm_artifact_mappings.py), and then finally it will default to the normalized group
of the artifact. For example, in the absence of any other mapping the artifact io.confluent:common-config
would default to providing ["io.confluent.**"]
.
The package path may be made recursive to match symbols in subpackages by adding .**
to the end of the package path. For example, specify ["org.junit.**"]
to infer a dependency on the artifact for any file importing a symbol from org.junit
or its subpackages.
resolve
str | None
None
The resolve from [jvm].resolves
that this artifact should be included in.
If not defined, will default to [jvm].default_resolve
.
When generating a lockfile for a particular resolve via the coursier-resolve
goal, it will include all artifacts that are declared compatible with that resolve. First-party targets like java_source
and scala_source
also declare which resolve they use via the resolve
field; so, for your first-party code to use a particular jvm_artifact
target, that artifact must be included in the resolve used by that code.
tags
Iterable[str] | None
None
Arbitrary strings to describe a target.
For example, you may tag some test targets with 'integration_test' so that you could run pants --tag='integration_test' test ::
to only run on targets with that tag.
url
str | None
None
A URL that points to the location of this artifact.
If specified, Pants will not fetch this artifact from default Maven repositories, and will instead fetch the artifact from this URL. To use default maven repositories, do not set this value.
Note that file:
URLs are not supported. Instead, use the jar
field for local artifacts.