Use Go modules on Travis CI

.travis.yml

@@ -10,6 +10,7 @@ before_install:
 
 env:
   global:
+    - GO111MODULE=on
     - PGX_TEST_DATABASE=postgres://pgx_md5:secret@127.0.0.1/pgx_test
     - PGX_TEST_UNIX_SOCKET_CONN_STRING="host=/var/run/postgresql database=pgx_test"
     - PGX_TEST_TCP_CONN_STRING=postgres://pgx_md5:secret@127.0.0.1/pgx_test
@@ -27,9 +28,6 @@ env:
 before_script:
   - ./travis/before_script.bash
 
-install:
-  - ./travis/install.bash
-
 script:
   - ./travis/script.bash
 

travis/install.bash

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-set -eux
-
-go get -u github.com/cockroachdb/apd
-go get -u github.com/shopspring/decimal
-go get -u gopkg.in/inconshreveable/log15.v2
-go get -u github.com/jackc/fake
-go get -u github.com/lib/pq
-go get -u github.com/hashicorp/go-version
-go get -u github.com/satori/go.uuid
-go get -u github.com/sirupsen/logrus
-go get -u github.com/pkg/errors
-go get -u go.uber.org/zap
-go get -u github.com/rs/zerolog