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Cache

From the CLI, one can interact directly with the cache with cs get. One can also adjust some cache parameters, that should apply to all applications using coursier.

cs get

The cs get command of the coursier CLI allows to download files via the coursier cache: 

$ cs get https://repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.16/scala-library-2.13.16.jar
~/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.16/scala-library-2.13.16.jar

For URLs whose content might change, pass --changing, to check for updates if the last check is older than the TTL: 

$ cs get https://repo1.maven.org/maven2/org/scala-lang/scala-library/maven-metadata.xml --changing
~/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/maven-metadata.xml

Environment variables

Cache location

Adjust the cache location with COURSIER_CACHE: 

$ export COURSIER_CACHE="/some/other/location"

TTL

Adjust the TTL with COURSIER_TTL: 

$ export COURSIER_TTL="1 hour"

The value of COURSIER_TTL is parsed with scala.concurrent.duration.Duration.