Add support for TTL

plugin/src/main/scala-2.10/coursier/CoursierPlugin.scala

@@ -15,6 +15,7 @@ object CoursierPlugin extends AutoPlugin {
     val coursierChecksums = Keys.coursierChecksums
     val coursierArtifactsChecksums = Keys.coursierArtifactsChecksums
     val coursierCachePolicies = Keys.coursierCachePolicies
+    val coursierTtl = Keys.coursierTtl
     val coursierVerbosity = Keys.coursierVerbosity
     val coursierSourceRepositories = Keys.coursierSourceRepositories
     val coursierResolvers = Keys.coursierResolvers
@@ -58,7 +59,8 @@ object CoursierPlugin extends AutoPlugin {
     coursierMaxIterations := 50,
     coursierChecksums := Seq(Some("SHA-1"), None),
     coursierArtifactsChecksums := Seq(None),
-    coursierCachePolicies := Settings.defaultCachePolicies,
+    coursierCachePolicies := CachePolicy.default,
+    coursierTtl := Cache.defaultTtl,
     coursierVerbosity := Settings.defaultVerbosityLevel,
     coursierSourceRepositories := Nil,
     coursierResolvers <<= Tasks.coursierResolversTask,

plugin/src/main/scala-2.10/coursier/Keys.scala

@@ -4,14 +4,18 @@ import java.io.File
 import java.net.URL
 
 import coursier.core.Publication
+
 import sbt.{ GetClassifiersModule, Resolver, SettingKey, TaskKey }
 
+import scala.concurrent.duration.FiniteDuration
+
 object Keys {
   val coursierParallelDownloads = SettingKey[Int]("coursier-parallel-downloads")
   val coursierMaxIterations = SettingKey[Int]("coursier-max-iterations")
   val coursierChecksums = SettingKey[Seq[Option[String]]]("coursier-checksums")
   val coursierArtifactsChecksums = SettingKey[Seq[Option[String]]]("coursier-artifacts-checksums")
   val coursierCachePolicies = SettingKey[Seq[CachePolicy]]("coursier-cache-policies")
+  val coursierTtl = SettingKey[Option[FiniteDuration]]("coursier-ttl")
 
   val coursierVerbosity = SettingKey[Int]("coursier-verbosity")
 

plugin/src/main/scala-2.10/coursier/Settings.scala

@@ -40,46 +40,4 @@ object Settings {
       .getOrElse(baseDefaultVerbosityLevel)
   }
 
-
-  private val baseDefaultCachePolicies = Seq(
-    CachePolicy.LocalOnly,
-    CachePolicy.FetchMissing
-  )
-
-  def defaultCachePolicies: Seq[CachePolicy] = {
-
-    def fromOption(value: Option[String], description: String): Option[Seq[CachePolicy]] =
-      value.filter(_.nonEmpty).flatMap {
-        str =>
-          CacheParse.cachePolicies(str) match {
-            case scalaz.Success(Seq()) =>
-              Console.err.println(
-                s"Warning: no mode found in $description, ignoring it."
-              )
-              None
-            case scalaz.Success(policies) =>
-              Some(policies)
-            case scalaz.Failure(errors) =>
-              Console.err.println(
-                s"Warning: unrecognized mode in $description, ignoring it."
-              )
-              None
-          }
-      }
-
-    val fromEnv = fromOption(
-      sys.env.get("COURSIER_MODE"),
-      "COURSIER_MODE environment variable"
-    )
-
-    def fromProps = fromOption(
-      sys.props.get("coursier.mode"),
-      "Java property coursier.mode"
-    )
-
-    fromEnv
-      .orElse(fromProps)
-      .getOrElse(baseDefaultCachePolicies)
-  }
-
 }

plugin/src/main/scala-2.10/coursier/Tasks.scala

@@ -269,6 +269,7 @@ object Tasks {
       val checksums = coursierChecksums.value
       val maxIterations = coursierMaxIterations.value
       val cachePolicies = coursierCachePolicies.value
+      val ttl = coursierTtl.value
       val cache = coursierCache.value
 
       val log = streams.value.log
@@ -461,9 +462,9 @@ object Tasks {
 
         val fetch = Fetch.from(
           repositories,
-          Cache.fetch(cache, cachePolicies.head, checksums = checksums, logger = Some(resLogger), pool = pool),
+          Cache.fetch(cache, cachePolicies.head, checksums = checksums, logger = Some(resLogger), pool = pool, ttl = ttl),
           cachePolicies.tail.map(p =>
-            Cache.fetch(cache, p, checksums = checksums, logger = Some(resLogger), pool = pool)
+            Cache.fetch(cache, p, checksums = checksums, logger = Some(resLogger), pool = pool, ttl = ttl)
           ): _*
         )
 
@@ -610,6 +611,7 @@ object Tasks {
       val parallelDownloads = coursierParallelDownloads.value
       val artifactsChecksums = coursierArtifactsChecksums.value
       val cachePolicies = coursierCachePolicies.value
+      val ttl = coursierTtl.value
       val cache = coursierCache.value
 
       val log = streams.value.log
@@ -687,7 +689,8 @@ object Tasks {
               p,
               checksums = artifactsChecksums,
               logger = Some(artifactsLogger),
-              pool = pool
+              pool = pool,
+              ttl = ttl
             )
 
           cachePolicies.tail