Release from CI (#221)

Release from CI

Author: olafurpg

.travis.yml

@@ -1,6 +1,10 @@
 sudo: false
 language: scala
-matrix:
+stages:
+  - name: test
+  - name: release
+    if: (branch = master AND type = push) OR (tag IS present)
+jobs:
   include:
   - env: CMD="mill __.jvm[2.11.12].test"
     jdk: oraclejdk8
@@ -26,6 +30,12 @@ matrix:
   - env: CMD="mill demo.fullOpt && sbt readme/run"
     jdk: oraclejdk8
 
-script:
+  - stage: release
+    script:
+      - echo "$PGP_SECRET" | base64 --decode | gpg --import
+      - mill __.publish --sonatypeCreds "$SONATYPE_USERNAME:$SONATYPE_PASSWORD" --release true --gpgPassphrase "$PGP_PASSPHRASE"
+
+before_install:
 - curl -L -o ~/bin/mill https://github.com/lihaoyi/mill/releases/download/0.3.6/0.3.6-85-38fce6 && chmod +x ~/bin/mill
+script:
 - $CMD

build.sc

@@ -151,7 +151,14 @@ trait CommonCrossModule extends CrossScalaModule with PublishModule{
   def zincWorker: ZincWorkerModule =
     CustomZincWorker
 
-  def publishVersion = "2.1.0"
+  def publishVersion = T{
+    import sys.process._
+    val desc = Seq("git", "describe", "--tags").!!.trim.replace("-g", "+")
+    if (desc.contains("+"))
+      desc + "-SNAPSHOT"
+    else
+      desc
+  }
   def artifactName = millModuleSegments.parts.dropRight(2).mkString("-")
   def pomSettings = PomSettings(
     description = artifactName(),