Use SNAPSHOT for release when snapshot version

src/main/scala/com/typesafe/sbt/packager/rpm/RpmPlugin.scala

@@ -1,7 +1,7 @@
 package com.typesafe.sbt.packager.rpm
 
 import sbt._
-import sbt.Keys.{name, packageBin, sourceDirectory, streams, target, version}
+import sbt.Keys.{name, packageBin, sourceDirectory, streams, target, version, isSnapshot}
 import java.nio.charset.Charset
 
 import com.typesafe.sbt.SbtNativePackager.Linux
@@ -63,7 +63,7 @@ object RpmPlugin extends AutoPlugin {
 
   override lazy val projectSettings = Seq(
     rpmOs := "Linux", // TODO - default to something else?
-    rpmRelease := "1",
+    rpmRelease := (if (isSnapshot.value) "SNAPSHOT" else "1"),
     rpmPrefix := None,
     rpmVendor := "", // TODO - Maybe pull in organization?
     rpmLicense := None,
@@ -105,7 +105,7 @@ object RpmPlugin extends AutoPlugin {
     packageArchitecture in Rpm := "noarch",
     rpmMetadata := RpmMetadata(
       (packageName in Rpm).value,
-      (version in Rpm).value,
+      if (isSnapshot.value) stripSnapshot((version in Rpm).value) else (version in Rpm).value,
       rpmRelease.value,
       rpmPrefix.value,
       (packageArchitecture in Rpm).value,
@@ -163,6 +163,11 @@ object RpmPlugin extends AutoPlugin {
       }
     }
   )
+
+  def stripSnapshot(version: String): String = {
+    val suffixPosition = version.indexOf("-SNAPSHOT")
+    version.slice(0, suffixPosition)
+  }
 }
 
 object RpmDeployPlugin extends AutoPlugin {

src/sbt-test/rpm/snapshot-rpm/build.sbt

@@ -0,0 +1,24 @@
+enablePlugins(RpmPlugin)
+
+name := "rpm-test"
+
+version := "0.1.0-SNAPSHOT"
+
+maintainer := "Keir Lawson <[email protected]>"
+
+packageSummary := "Snapshot test rpm package"
+
+packageDescription := """A fun package description of our software,
+  with multiple lines."""
+
+rpmVendor := "typesafe"
+
+rpmUrl := Some("http://github.com/sbt/sbt-native-packager")
+
+rpmLicense := Some("BSD")
+
+TaskKey[Unit]("check-snapshot") := {
+  assert(rpmRelease.value == "SNAPSHOT", s"RPM has incorrect value ${rpmRelease.value}")
+  assert(rpmMetadata.value.version == "0.1.0", s"RPM has incorrect value ${rpmMetadata.value.version}")
+}
+

src/sbt-test/rpm/snapshot-rpm/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % sys.props("project.version"))

src/sbt-test/rpm/snapshot-rpm/src/universal/conf/test

@@ -0,0 +1 @@
+# Test configuration file!

src/sbt-test/rpm/snapshot-rpm/test

@@ -0,0 +1,6 @@
+# Run the debian packaging.
+> rpm:package-bin
+$ exists target/rpm/RPMS/noarch/rpm-test-0.1.0-SNAPSHOT.noarch.rpm
+
+#Check release and version configured correctly
+> check-snapshot