From 232cb8d5d76796747365c3c24621733bfd632109 Mon Sep 17 00:00:00 2001
From: Travis Brown <travisrobertbrown@gmail.com>
Date: Fri, 19 Jun 2020 10:32:47 +0200
Subject: [PATCH] Add Dotty build to CI

---
 .travis.yml | 9 +++++++++
 build.sbt   | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 0af6325cbf..1542878e8a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,7 @@ jdk:
 
 scala_version_212: &scala_version_212 2.12.11
 scala_version_213: &scala_version_213 2.13.2
+dotty_version: &dotty_version 0.24.0
 
 before_install:
  - export PATH=${PATH}:./vendor/bundle
@@ -76,6 +77,14 @@ jobs:
       name: Binary compatibility 2.13
       scala: *scala_version_213
 
+    # Note that we're currently only building some modules on Dotty, not running tests.
+    - &dotty_tests
+      stage: test
+      name: Dotty tests
+      env: TEST="Dotty tests"
+      script: sbt ++$TRAVIS_SCALA_VERSION! alleycatsLawsJVM/compile
+      scala: *dotty_version
+
     - stage: styling
       name: Linting
       env: TEST="linting"
diff --git a/build.sbt b/build.sbt
index 825b7dd402..771e52e2c3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -782,7 +782,8 @@ addCommandAlias("validateJVM", ";fmtCheck;buildJVM;bench/test;validateBC;makeMic
 addCommandAlias("validateJS", ";catsJS/compile;testsJS/test;js/test")
 addCommandAlias("validateKernelJS", "kernelLawsJS/test")
 addCommandAlias("validateFreeJS", "freeJS/test") //separated due to memory constraint on travis
-addCommandAlias("validate", ";clean;validateJS;validateKernelJS;validateFreeJS;validateJVM")
+addCommandAlias("validateDotty", ";++0.24.0!;alleycatsLawsJVM/compile")
+addCommandAlias("validate", ";clean;validateJS;validateKernelJS;validateFreeJS;validateJVM;validateDotty")
 
 addCommandAlias("prePR", "fmt")