scala_import.md

scala_import

scala_import(
    name,
    jars,
    deps,
    runtime_deps,
    exports,
    neverlink,
    srcjar,
    stamp,
)

scala_import enables the use of precompiled Scala .jar files as dependencies for other Scala rules like scala_library, similar to java_import from Java rules.

This rule reimplements java_import without support for ijars, which break Scala macros. Generally, ijars don’t help much for external dependencies, which rarely change.

The jar's compile MANIFEST.MF is stamped with a Target-Label attribute for dependency tracking reporting.

Configuring stamping behavior

This behaviour can be changed per scala_import target with an attribute or globally with a setting:

bazel build //my:target --@rules_scala//scala/settings:stamp_scala_import=False

Attributes

Attribute name	Description
name	Name, required A unique name for this target.
jars	List of labels, required List of .jar files to import, usually in //external. In practice, this usually corresponds to one jar.
deps	List of labels, optional Compile time dependencies that were used to create the jar.
runtime_deps	List of labels, optional Runtime dependencies that are needed for this library.
exports	List of labels, optional List of targets to add to the dependencies of those that depend on this target.
neverlink	boolean, optional (default False) If true only use this library for compilation and not at runtime.
srcjar	Label, optional The source jar that was used to create the jar.
stamp	Label, optional Setting to control Target-Label stamping into compile jar Manifest Default value is @rules_scala//scala/settings:stamp_scala_import