Publish to Sonatype / Maven Central (#21)

* Publish to sonatype / Maven Central
* Update Travis to download sbt

.travis.yml

@@ -4,5 +4,12 @@ scala:
   - 2.12.6
 jdk:
   - openjdk8
+
+before_script:
+  # Download sbt because Travis can't find it automatically :(
+  - mkdir -p $HOME/.sbt/launchers/1.2.8/
+  - curl -L -o $HOME/.sbt/launchers/1.2.8/sbt-launch.jar https://repo1.maven.org/maven2/org/scala-sbt/sbt-launch/1.2.8/sbt-launch-1.2.8.jar
+
 script:
   - sbt ^test ^scripted
+

build.sbt

@@ -1,13 +1,10 @@
 import sbt.plugins.SbtPlugin
 
 name := "sbt-git-versioning"
-organizationName := "Rally Health"
-organization := "com.rallyhealth.sbt"
+ThisBuild / organizationName := "Rally Health"
+ThisBuild / organization := "com.rallyhealth.sbt"
 
-licenses := Seq("MIT" -> url("http://opensource.org/licenses/MIT"))
-
-bintrayOrganization := Some("rallyhealth")
-bintrayRepository := "sbt-plugins"
+ThisBuild / licenses := Seq("MIT" -> url("https://opensource.org/licenses/MIT"))
 
 // SbtPlugin requires sbt 1.2.0+
 // See: https://developer.lightbend.com/blog/2018-07-02-sbt-1-2-0/#sbtplugin-for-plugin-development

project/plugins.sbt

@@ -3,4 +3,5 @@ resolvers += Resolver.url(
   url("https://dl.bintray.com/rallyhealth/sbt-plugins"))(Resolver.ivyStylePatterns)
 
 addSbtPlugin("com.rallyhealth.sbt" % "sbt-git-versioning" % "1.3.0")
-addSbtPlugin("org.foundweekends" % "sbt-bintray" % "0.5.4")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.0")
+

sonatype.sbt

@@ -0,0 +1,17 @@
+// Your profile name of the sonatype account. The default is the same with the organization value
+sonatypeProfileName := "com.rallyhealth"
+
+// To sync with Maven central, you need to supply the following information:
+publishMavenStyle := true
+
+// publish to Maven Central
+ThisBuild / sonatypeCredentialHost := "s01.oss.sonatype.org"
+ThisBuild / publishTo := Some {
+  if (isSnapshot.value)
+    Resolver.url("Sonatype", url("https://s01.oss.sonatype.org/content/repositories/snapshots"))
+  else
+    Resolver.url("Sonatype", url("https://s01.oss.sonatype.org/content/repositories/releases"))
+}
+
+import xerial.sbt.Sonatype.GitHubHosting
+sonatypeProjectHosting := Some(GitHubHosting("rallyhealth", "sbt-git-versioning", "jeff.n.may@gmail.com"))