Drop support for Go <1.8

.gitlab-ci.yml

@@ -4,18 +4,6 @@
   - go version
   - make test
 
-test using go 1.5:
-  <<: *test_definition
-  image: golang:1.5
-
-test using go 1.6:
-  <<: *test_definition
-  image: golang:1.6
-
-test using go 1.7:
-  <<: *test_definition
-  image: golang:1.7
-
 test using go 1.8:
   <<: *test_definition
   image: golang:1.8

Makefile

@@ -3,7 +3,6 @@ VERSION=$(shell git describe)-$(shell date -u +%Y%m%d.%H%M%S)
 BUILD_DIR = $(shell pwd)
 export GOPATH=${BUILD_DIR}/_build
 export PATH:=${GOPATH}/bin:${PATH}
-export GO15VENDOREXPERIMENT=1
 GOBUILD=go build -ldflags "-X main.Version=${VERSION}"
 PKG=gitlab.com/gitlab-org/gitlab-workhorse
 PKG_ALL = $(shell GOPATH=${GOPATH} go list ${PKG}/... | grep -v /vendor/)

README.md

@@ -143,7 +143,7 @@ gitlab-workhorse -authBackend http://localhost:8080/gitlab
 
 ## Installation
 
-To install gitlab-workhorse you need [Go 1.5 or
+To install gitlab-workhorse you need [Go 1.8 or
 newer](https://golang.org/dl) and [GNU
 Make](https://www.gnu.org/software/make/).