Use golangci-lint for linting (#71)

.golangci.yml

@@ -0,0 +1,18 @@
+run:
+  tests: false
+
+linters:
+  goimports:
+    local-prefixes: github.com/stripe/stripe-cli
+
+linters:
+  enable-all: true
+  disable:
+    - errcheck
+    - gochecknoglobals
+    - gochecknoinits
+    - gosec
+    - lll
+    - maligned
+    - unparam
+    - stylecheck

.travis.yml

@@ -1,18 +1,19 @@
+dist: bionic
+
 language: go
 
-go:
-- 1.12.x
+go: '1.12.x'
 
 addons:
   apt:
     packages:
     - rpm
 
-env:
-  global:
-    - GO111MODULE=on
-    - GOBIN="${GOPATH}/bin"
-    - PATH="${GOBIN}:${PATH}"
+install:
+  - make setup
+
+script:
+  - make ci
 
 deploy:
 - provider: script

.vscode/settings.json

@@ -5,6 +5,13 @@
     "editor.formatOnSave": false,
 
     "go.formatTool": "goimports",
+    "go.formatFlags": [
+        "-local", "github.com/stripe/stripe-cli",
+    ],
+    "go.lintTool": "golangci-lint",
+    "go.lintFlags": [
+        "--fast",
+    ],
     "[go]": {
         "editor.formatOnSave": true
     },

Makefile

@@ -1,50 +1,80 @@
+SOURCE_FILES?=./...
+TEST_PATTERN?=.
+TEST_OPTIONS?=
+
 export GO111MODULE := on
 export GOBIN := $(shell pwd)/bin
 export PATH := $(GOBIN):$(PATH)
+export GOPROXY := https://gocenter.io
 
-all: test
+# Install all the build and lint dependencies
+setup:
+	curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh
+	curl -L https://git.io/misspell | sh
+	go mod download
+.PHONY: setup
 
-install-deps:
-	go get
-.PHONY: install-deps
+# Run all the tests
+test:
+	go test $(TEST_OPTIONS) -failfast -race -coverpkg=./... -covermode=atomic -coverprofile=coverage.txt $(SOURCE_FILES) -run $(TEST_PATTERN) -timeout=2m
+.PHONY: test
 
-update-deps:
-	go get -u
-.PHONY: update-deps
+# Run all the tests and opens the coverage report
+cover: test
+	go tool cover -html=coverage.txt
+.PHONY: cover
 
-update-openapi-spec:
-	rm -f ./api/openapi-spec/spec3.sdk.json
-	wget https://raw.githubusercontent.com/stripe/openapi/master/openapi/spec3.sdk.json -P ./api/openapi-spec
-.PHONY: update-openapi-spec
+# gofmt and goimports all go files
+fmt:
+	find . -name '*.go' | while read -r file; do gofmt -w -s "$$file"; goimports -w "$$file"; done
+.PHONY: fmt
 
+# Run all the linters
 lint:
-# In travis, we need to install golint explicitly. Don't do this in other
-# environments
-ifeq ($(ENVIRONMENT), travis)
-	go get golang.org/x/lint/golint
-	git checkout .
-endif
-	golint -set_exit_status ./...
+	# TODO: fix tests and disabled linter issues
+	./bin/golangci-lint run ./...
+	./bin/misspell -error **/*.go
 .PHONY: lint
 
-vet:
-	go vet $(shell go list ./... | grep -v /vendor/)
-.PHONY: vet
+# Clean go.mod
+go-mod-tidy:
+	@go mod tidy -v
+	@git diff HEAD
+	@git diff-index --quiet HEAD
+.PHONY: go-mod-tidy
 
-test: install-deps lint vet
-	go test -race -cover -v ./...
-	@echo '\o/ yay, we did it!'
-.PHONY: test
+# Run all the tests and code checks
+ci: build test lint go-mod-tidy
+.PHONY: ci
 
+# Build a beta version of stripe
 build:
-	go mod download
 	go generate ./...
-	go build -o stripe -ldflags "-s -w" cmd/stripe/main.go
+	go build -o stripe cmd/stripe/main.go
 .PHONY: build
 
+# Show to-do items per file
+todo:
+	@grep \
+		--exclude-dir=vendor \
+		--exclude-dir=node_modules \
+		--exclude=Makefile \
+		--text \
+		--color \
+		-nRo -E ' TODO:.*|SkipNow' .
+.PHONY: todo
+
+# Updates the OpenAPI spec
+update-openapi-spec:
+	rm -f ./api/openapi-spec/spec3.sdk.json
+	wget https://raw.githubusercontent.com/stripe/openapi/master/openapi/spec3.sdk.json -P ./api/openapi-spec
+.PHONY: update-openapi-spec
+
+# Releases a new version
+release:
 # This does not release anything from your local machine but creates a tag
 # for our CI to handle it
-release:
+
 	git pull origin master
 
 # Makefile's execute each line in its own subshell so variables don't
@@ -54,3 +84,5 @@ release:
 	git tag $$version
 	git push --tags
 .PHONY: release
+
+.DEFAULT_GOAL := build