(#53) Upgrade to Go 1.13 (#54)

.golangci.yml

@@ -1,6 +1,9 @@
 service:
   # project-path: github.com/llorllale/go-gitlint
-  golangci-lint-version: 1.14.x
+  # @todo #53 upgrade golangci-lint-version to 1.18.x once their docker image is ready
+  #  - see https://github.com/golangci/golangci-lint/issues/682. For now, linting on
+  #  local is against 1.18.x vs their service on 1.17.x.
+  golangci-lint-version: 1.17.x
   # prepare:
   #  - make deps
   #  - make generate

.travis.yml

@@ -2,12 +2,12 @@ dist: trusty
 
 language: go
 go:
-  - "1.11.x"
+  - "1.13.x"
 env:
   - GO111MODULE=on
 install:
   - gem install pdd
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s v1.14.0
+  - curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $(go env GOPATH)/bin v1.18.0
   - GO111MODULE=off go get github.com/comcast/weasel
 jobs:
   include:

Makefile

@@ -35,13 +35,13 @@ coverage:
 	./check_coverage.sh
 
 lint:
-	./bin/golangci-lint run
+	golangci-lint run
 
 pdd:
 	pdd --file=puzzles.xml
 
 license:
-	${GOPATH}/bin/weasel
+	weasel
 
 checks: build lint pdd license test coverage
 

README.md

@@ -82,9 +82,9 @@ Fork this repo, make sure `make checks` works, **and then** open a PR.
 ## Build dependencies
 To run `make checks` you will need:
 
-* Go `1.11.x`
+* Go `1.13.x`
 * Ruby 2.x (for `pdd`)
 * [pdd](https://github.com/yegor256/pdd) (a ruby gem - `gem install pdd`)
-* [golangci-lint](https://github.com/golangci/golangci-lint) v1.14.0 (expected to be in the `./bin` folder)
-* [weasel](https://github.com/comcast/weasel) (`go get github.com/comcast/weasel`)
+* [golangci-lint](https://github.com/golangci/golangci-lint) v1.18.0 in your `$PATH` (`curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $(go env GOPATH)/bin v1.18.0`)
+* [weasel](https://github.com/comcast/weasel) in your `$PATH` (`go get github.com/comcast/weasel`)
 

go.mod

@@ -11,3 +11,5 @@ require (
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gopkg.in/src-d/go-git.v4 v4.10.0
 )
+
+go 1.13