travis no support for docker on MacOS; try 'normal' build

.ci/before_install_osx.sh

@@ -2,22 +2,8 @@
 
 set -ev
 
-brew update
+go get -d -v github.com/ava-labs/gecko/...
-brew install docker
-brew install docker-machine
-brew cask install virtualbox
-docker-machine create --driver virtualbox default
-docker-machine start default
-# hack to address problem with using DOCKER_BUILDKIT=1, inspired by:
-# * https://github.com/rootless-containers/usernetes/blob/master/.travis.yml
-#
-# links discussing the issue:
-# * https://github.com/moby/buildkit/issues/606#issuecomment-453959632
-# * https://travis-ci.community/t/docker-builds-are-broken-if-buildkit-is-used-docker-buildkit-1/2994
-# * https://github.com/moby/moby/issues/39120
 
-# IS THIS HACK NEEDED FOR MAC?
+brew update
-#docker --version
+sudo chown -R $(whoami) $(brew --prefix)/*
-#cat /etc/docker/daemon.json
+brew install Determinant/salticidae/salticidae@31
-#rm -f /etc/docker/daemon.json
-#systemctl restart docker

.ci/runscript_linux.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+set -ev
+
+docker run --rm -v "$PWD:$GECKO_HOME" $DOCKERHUB_REPO:$COMMIT bash "$GECKO_HOME/scripts/build_test.sh"
+docker run --rm -v "$PWD:$GECKO_HOME" $DOCKERHUB_REPO:$COMMIT bash "$GECKO_HOME/scripts/build.sh"

.ci/runscript_osx.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ev
+
+cd $GOPATH/src/github.com/ava-labs/gecko
+./scripts/build_test.sh
+./scripts/build.sh

.travis.yml

@@ -1,9 +1,13 @@
 language: go
+go:
+  - 1.13.x
+
 jobs:
   include:
     #- os: linux
     #  dist: bionic
     - os: osx
+      osx_image: xcode11.4
 services:
 - docker
 env:
@@ -18,10 +22,13 @@ before_install:
  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then .ci/before_install_osx.sh; fi
  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then .ci/before_install_linux.sh; fi
 
-install: DOCKER_BUILDKIT=1 docker build --progress plain -t $DOCKERHUB_REPO:$COMMIT .
+install: 
+ - if [ "$TRAVIS_OS_NAME" = "linux" ]; then DOCKER_BUILDKIT=1 docker build --progress plain -t $DOCKERHUB_REPO:$COMMIT; fi
+
 script: 
-  - docker run --rm -v "$PWD:$GECKO_HOME" $DOCKERHUB_REPO:$COMMIT bash "$GECKO_HOME/scripts/build_test.sh"
+ - if [ "$TRAVIS_OS_NAME" = "osx" ]; then .ci/runscript_osx.sh; fi
-  - docker run --rm -v "$PWD:$GECKO_HOME" $DOCKERHUB_REPO:$COMMIT bash "$GECKO_HOME/scripts/build.sh"
+ - if [ "$TRAVIS_OS_NAME" = "linux" ]; then .ci/runscript_linux.sh; fi
+
 #Need to push to docker hub only from one build
 after_success: 
  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then .ci/after_success.sh; fi