Update build

* Drop /vendor.
* Update Go modules.
* Bump minimum Go version to 1.13.
* Bump prometheus orb.

Signed-off-by: Ben Kochie <[email protected]>

.circleci/config.yml

@@ -2,7 +2,7 @@
 version: 2.1
 
 orbs:
-  prometheus: prometheus/prometheus@0.4.0
+  prometheus: prometheus/prometheus@0.10.0
 
 executors:
   # Whenever the Go version is updated here, .promu.yml should also be updated.

.gitignore

@@ -6,3 +6,4 @@
 *~
 *.exe
 *.tar.gz
+/vendor

.golangci.yml

@@ -1,6 +1,3 @@
-run:
-  modules-download-mode: vendor
-
 # Run only staticcheck for now. Additional linters will be enabled one-by-one.
 linters:
   enable:

.promu.yml

@@ -5,7 +5,7 @@ go:
 repository:
     path: github.com/prometheus/pushgateway
 build:
-    flags: -mod=vendor -a -tags netgo
+    flags: -a -tags netgo
     ldflags: |
         -X github.com/prometheus/common/version.Version={{.Version}}
         -X github.com/prometheus/common/version.Revision={{.Revision}}

go.mod

@@ -2,21 +2,15 @@ module github.com/prometheus/pushgateway
 
 require (
 	github.com/go-kit/kit v0.10.0
-	github.com/golang/protobuf v1.4.3
-	github.com/google/go-cmp v0.5.2 // indirect
-	github.com/kr/text v0.2.0 // indirect
+	github.com/golang/protobuf v1.5.1
 	github.com/matttproud/golang_protobuf_extensions v1.0.1
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
-	github.com/prometheus/client_golang v1.9.0
+	github.com/prometheus/client_golang v1.10.0
 	github.com/prometheus/client_model v0.2.0
-	github.com/prometheus/common v0.15.0
+	github.com/prometheus/common v0.19.0
 	github.com/prometheus/exporter-toolkit v0.5.1
 	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749 // indirect
 	github.com/shurcooL/vfsgen v0.0.0-20200824052919-0d455de96546
-	github.com/stretchr/testify v1.6.1 // indirect
-	golang.org/x/tools v0.0.0-20201215192005-fa10ef0b8743 // indirect
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 )
 
-go 1.11
+go 1.13