Update build (prometheus#543)

* Drop /vendor dir.
* Simplify mixin build steps.
* Bump Go modules.

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

Author: SuperQ

.circleci/config.yml

@@ -50,15 +50,14 @@ jobs:
     - run: sudo pip install codespell
     - run: codespell --skip=".git,./vendor,ttar,Makefile.common" -L uint,ist,keypair
 
-
   mixin:
     executor: golang
 
     steps:
     - checkout
-    - run: cd mysqld-mixin; go install github.com/monitoring-mixins/mixtool/cmd/mixtool@latest
-    - run: cd mysqld-mixin; go install github.com/google/go-jsonnet/cmd/jsonnetfmt@latest
-    - run: cd mysqld-mixin; make lint build
+    - run: go install github.com/monitoring-mixins/mixtool/cmd/mixtool@latest
+    - run: go install github.com/google/go-jsonnet/cmd/jsonnetfmt@latest
+    - run: make -C mysqld-mixin lint build
 
 workflows:
   version: 2

.gitignore

@@ -8,3 +8,4 @@
 *-stamp
 .idea
 *.iml
+/vendor

.golangci.yml

@@ -1,6 +1,4 @@
-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/mysqld_exporter
 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

@@ -1,18 +1,16 @@
 module github.com/prometheus/mysqld_exporter
 
 require (
-	github.com/DATA-DOG/go-sqlmock v1.4.1
+	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/go-kit/kit v0.10.0
-	github.com/go-sql-driver/mysql v1.5.0
-	github.com/gopherjs/gopherjs v0.0.0-20190430165422-3e4dfb77656c // indirect
-	github.com/prometheus/client_golang v1.6.0
+	github.com/go-sql-driver/mysql v1.6.0
+	github.com/prometheus/client_golang v1.10.0
 	github.com/prometheus/client_model v0.2.0
-	github.com/prometheus/common v0.10.0
+	github.com/prometheus/common v0.20.0
 	github.com/satori/go.uuid v1.2.0
-	github.com/smartystreets/assertions v1.0.0 // indirect
 	github.com/smartystreets/goconvey v1.6.4
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	gopkg.in/ini.v1 v1.57.0
+	gopkg.in/ini.v1 v1.62.0
 )
 
 go 1.13