chore(ci): adds CI. (hypertrace#1)

Author: jcchavezs

.circleci/config.yml

@@ -0,0 +1,28 @@
+version: 2.1
+
+orbs:
+  codecov: codecov/codecov@1
+
+jobs:
+  build-and-test:
+    parameters:
+      go-version:
+        type: string
+    docker:
+      - image: cimg/go:<< parameters.go-version >>
+    steps:
+      - checkout
+      - run: make lint
+      - run: CGO_ENABLED=1 go test -coverprofile=coverage.txt -v ./...
+      - codecov/upload:
+          file: ./coverage.txt
+      - run: make build package
+
+workflows:
+  version: 2
+  build-and-test:
+    jobs:
+      - build-and-test:
+          matrix:
+            parameters:
+              go-version: ["1.15"] # we should add tip here too

.golangci.yml

@@ -0,0 +1,30 @@
+run:
+  deadline: 5m
+
+linters:
+  disable-all: true
+  enable:
+    - dupl
+    - goconst
+    #- gocyclo response wrapper for server handler is too complex
+    - gofmt
+    - golint
+    - govet
+    - ineffassign
+    #- interfacer
+    - lll
+    - misspell
+    - nakedret
+    - structcheck
+    - unparam
+    - varcheck
+
+linters-settings:
+  dupl:
+    threshold: 400
+  lll:
+    line-length: 170
+  gocyclo:
+    min-complexity: 15
+  golint:
+    min-confidence: 0.85

Makefile

@@ -1,14 +1,20 @@
-BIN_NAME=xfiles
-
 VERSION ?= dev
 GIT_HASH ?=$(shell git rev-parse HEAD)
 IMAGE_NAME := "hypertrace/collector"
 
+.PHONY: build
 build:
 	go build -ldflags "-w -X main.GitHash=${GIT_HASH} -X main.Version=${VERSION}" ./cmd/collector
 
+.PHONY: run
 run:
 	go run cmd/collector/main.go --config ./config.yml
 
+.PHONY: package
 package:
 	docker build --build-arg VERSION=${VERSION} --build-arg GIT_COMMIT=$(GIT_COMMIT) -t $(IMAGE_NAME):${VERSION} -t $(IMAGE_NAME):latest .
+
+.PHONY: lint
+lint:
+	@echo "Running linters..."
+	@golangci-lint run ./... && echo "Done."