travis: use dep, and build outside of docker

Author: lucab

.travis.yml

@@ -1,29 +1,46 @@
-language: shell # We do everything inside Docker and don't want travis fiddling with steps or environment variables
-
+dist: trusty
 sudo: required
-
 services:
   - docker
 
+language: go
+go:
+  - "1.5.x"
+  - "1.10.x"
+go_import_path: github.com/coreos/go-systemd
+
 env:
   global:
+    - IMPORTPATH=github.com/coreos/go-systemd
     - GOPATH=/opt
+    - GO15VENDOREXPERIMENT=1
+    - DEP_BINDIR=/tmp
     - BUILD_DIR=/opt/src/github.com/coreos/go-systemd
   matrix:
+    - DOCKER_BASE=ubuntu:16.04
     - DOCKER_BASE=ubuntu:18.04
     - DOCKER_BASE=debian:stretch
 
 before_install:
+ - sudo apt-get -qq update
+ - sudo apt-get install -y libsystemd-journal-dev libsystemd-daemon-dev
+ - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | INSTALL_DIRECTORY=${DEP_BINDIR} sh
+ - ${DEP_BINDIR}/dep ensure -v
  - docker pull ${DOCKER_BASE}
- - docker run --privileged -e GOPATH=${GOPATH} --cidfile=/tmp/cidfile ${DOCKER_BASE} /bin/bash -c "apt-get update && apt-get install -y build-essential git golang dbus libsystemd-dev libpam-systemd systemd-container && go get github.com/coreos/pkg/dlopen && go get github.com/godbus/dbus"
+ - docker run --privileged -e GOPATH=${GOPATH} --cidfile=/tmp/cidfile ${DOCKER_BASE} /bin/bash -c "apt-get update && apt-get install -y sudo build-essential git golang dbus libsystemd-dev libpam-systemd systemd-container"
  - docker commit `cat /tmp/cidfile` go-systemd/container-tests
  - rm -f /tmp/cidfile
 
 install:
  - docker run -d --cidfile=/tmp/cidfile --privileged -e GOPATH=${GOPATH} -v ${PWD}:${BUILD_DIR} go-systemd/container-tests /bin/systemd --system
 
 script:
- - docker exec `cat /tmp/cidfile` /bin/bash -c "cd ${BUILD_DIR} && ./test"
+ - ./scripts/travis/pr-test.sh go_fmt
+ - ./scripts/travis/pr-test.sh build_source
+ - ./scripts/travis/pr-test.sh build_tests
+ - docker exec `cat /tmp/cidfile` /bin/bash -c "cd ${BUILD_DIR} && ./scripts/travis/pr-test.sh run_tests"
+ - ./scripts/travis/pr-test.sh go_vet
+ - ./scripts/travis/pr-test.sh license_check
 
 after_script:
  - docker kill `cat /tmp/cidfile`