travis: update for go modules; bump Go versions

Author: mreiferson

.travis.yml

@@ -1,27 +1,17 @@
 language: go
 go:
-  - 1.8.x
-  - 1.9.x
   - 1.10.x
   - 1.11.x
+  - 1.12.x
 env:
   - NSQ_DOWNLOAD=nsq-0.3.8.linux-amd64.go1.6.2 GOARCH=amd64
   - NSQ_DOWNLOAD=nsq-0.3.8.linux-amd64.go1.6.2 GOARCH=386
   - NSQ_DOWNLOAD=nsq-1.0.0-compat.linux-amd64.go1.8 GOARCH=amd64
   - NSQ_DOWNLOAD=nsq-1.0.0-compat.linux-amd64.go1.8 GOARCH=386
   - NSQ_DOWNLOAD=nsq-1.1.0.linux-amd64.go1.10.3 GOARCH=amd64
   - NSQ_DOWNLOAD=nsq-1.1.0.linux-amd64.go1.10.3 GOARCH=386
-install:
-  - wget -O dep https://github.com/golang/dep/releases/download/v0.4.1/dep-linux-amd64
-  - chmod +x dep
-  - ./dep ensure
 script:
-  - wget http://bitly-downloads.s3.amazonaws.com/nsq/$NSQ_DOWNLOAD.tar.gz
-  - tar zxvf $NSQ_DOWNLOAD.tar.gz
-  - export PATH=$NSQ_DOWNLOAD/bin:$PATH
-  - pushd $TRAVIS_BUILD_DIR
-  - ./test.sh
-  - popd
+  - ./travis.sh
 notifications:
   email: false
 sudo: false

travis.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -e
+
+wget http://bitly-downloads.s3.amazonaws.com/nsq/$NSQ_DOWNLOAD.tar.gz
+tar zxvf $NSQ_DOWNLOAD.tar.gz
+export PATH=$NSQ_DOWNLOAD/bin:$PATH
+
+go_minor_version=$(go version | awk '{print $3}' | awk -F. '{print $2}')
+if [[ $go_minor_version -gt 10 ]]; then
+    export GO111MODULE=on
+else
+    wget -O dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64
+    chmod +x dep
+    ./dep ensure
+fi
+
+./test.sh