Replace travis job with github action. (#66)

* Replace travis job with github action.

* Add action rule in Makefile to perform the same steps as github action.
Github actions also run on pull_request.
Add help option to Makefile.

* Add missing regenerate step.

.github/workflows/build.yaml

@@ -0,0 +1,47 @@
+name: build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      working-directory: ./src/github.com/awalterschulze/gographviz
+
+    steps:
+    - name: Set GOPATH
+      run: |
+        echo "##[set-env name=GOPATH;]$(dirname $GITHUB_WORKSPACE)/gographviz"
+        echo "##[add-path]$(dirname $GITHUB_WORKSPACE)/gographviz/bin"
+      shell: bash
+
+    - name: Setup Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: '1.14'
+
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 1
+        path: src/github.com/awalterschulze/gographviz
+
+    - name: Install dependencies
+      run: make dependencies
+      working-directory: ${{env.working-directory}}
+
+    - name: Run regenerate
+      run: make regenerate
+      working-directory: ${{env.working-directory}}
+
+    - name: Run build
+      run: make build
+      working-directory: ${{env.working-directory}}
+
+    - name: Run checkers
+      run: make checkers
+      working-directory: ${{env.working-directory}}
+
+    - name: Run testing
+      run: make test
+      working-directory: ${{env.working-directory}}

Makefile

@@ -1,16 +1,35 @@
-regenerate:
+.PHONY: help regenerate test dependencies build checkers action
+
+# Prefer tools that we've installed
+export PATH := $(HOME)/go/bin:$(PATH)
+
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+regenerate: ## Re-generate lexers and parsers and pass through goimports
+	go get github.com/goccmack/gocc
 	go install github.com/goccmack/gocc
-	gocc -zip -o ./internal/ dot.bnf 
+	gocc -zip -o ./internal/ dot.bnf
 	find . -type f -name '*.go' | xargs goimports -w
+	go mod tidy
 
-test:
+test: ## Perform package tests
 	go test ./...
 
-travis:
-	make regenerate
-	go build ./...
-	go test ./...
+dependencies: ## Grab necessary dependencies for checkers
+	go version
+	go get golang.org/x/tools/cmd/goimports
+	go get github.com/kisielk/errcheck
+	go get -u golang.org/x/lint/golint
+	go mod tidy
+
+build: ## Perform build process
+	go build .
+
+checkers: ## Run all checkers (errcheck, gofmt and golint)
 	errcheck -ignore 'fmt:[FS]?[Pp]rint*' ./...
 	gofmt -l -s -w .
 	golint -set_exit_status
 	git diff --exit-code
+
+action: dependencies regenerate build test checkers ## Run steps of github action

Readme.md

@@ -24,9 +24,10 @@ output := graph.String()
 ### Installation ###
 go get github.com/awalterschulze/gographviz
 
-### Tests ###
+### Build and Tests ###
+
+[![Build Status](https://github.com/awalterschulze/gographviz/workflows/build/badge.svg)](https://github.com/awalterschulze/gographviz/actions)
 
-[![Build Status](https://travis-ci.org/awalterschulze/gographviz.svg?branch=master)](https://travis-ci.org/awalterschulze/gographviz)
 
 ### Users ###