Setup release process

Author: TrafeX

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: Build release
+
+on:
+  push:
+    branches: [ master ]
+    tags:
+      - '*'
+
+jobs:
+
+  build-release:
+    name: Build release
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@master
+
+    - name: Set up Go 1.15
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.15
+      id: go
+
+    - name: Build release
+      run: |
+        make build-all
+    
+    - name: Publish release
+      run: |
+        echo '${{ secrets.GITHUB_TOKEN }}' | gh auth login --with-token
+        make release

.gitignore

@@ -0,0 +1 @@
+_build

Makefile

@@ -0,0 +1,28 @@
+NAME=videotranscoder
+VERSION=$(shell cat VERSION)
+BUILD=$(shell git rev-parse --short HEAD)
+LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD)"
+
+clean:
+	rm -rf _build/ release/
+
+build:
+	go mod download
+	CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o ${NAME}
+
+build-all:
+	mkdir -p _build
+	GOOS=darwin  GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/${NAME}-$(VERSION)-darwin-amd64
+	GOOS=linux   GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/${NAME}-$(VERSION)-linux-amd64
+	GOOS=linux   GOARCH=arm   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/${NAME}-$(VERSION)-linux-arm
+	GOOS=linux   GOARCH=arm64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/${NAME}-$(VERSION)-linux-arm64
+	# GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/${NAME}-$(VERSION)-windows-amd64
+	cd _build; sha256sum * > sha256sums.txt
+
+release:
+	mkdir release
+	cp _build/* release
+	cd release; sha256sum --quiet --check sha256sums.txt && \
+	gh release create $(VERSION) -d -t v$(VERSION) *
+
+.PHONY: build

VERSION

@@ -0,0 +1 @@
+1.0.0

go.mod

@@ -2,4 +2,4 @@ module github.com/TrafeX/videotranscoder
 
 go 1.15
 
-require github.com/fatih/color v1.10.0 // indirect
+require github.com/fatih/color v1.10.0

main.go

@@ -9,27 +9,54 @@ import (
 	"os/exec"
 	"path"
 	"path/filepath"
+	"runtime"
 
 	"github.com/fatih/color"
 )
 
+var (
+	name       = "videotranscoder"
+	build      = "none"
+	version    = "dev-build"
+	goVersion  = runtime.Version()
+	versionStr = fmt.Sprintf("%s version %v, build %v %v", name, version, build, goVersion)
+)
+
 func parseCliArguments() (string, string, bool) {
 	var sourcePath string
 	var targetPath string
 	var overwriteExisting bool
+	var printVersion bool
+	var printHelp bool
 
 	flag.StringVar(&sourcePath, "source", "", "Path to source folder")
 	flag.StringVar(&targetPath, "target", "", "Path to target folder")
-	flag.BoolVar(&overwriteExisting, "overwrite", false, "Overwrite existing files")
+	flag.BoolVar(&overwriteExisting, "overwrite", false, "Overwrite existing files in the target folder")
+	flag.BoolVar(&printVersion, "version", false, "Print version information")
+	flag.BoolVar(&printHelp, "help", false, "Print help and usage information")
 
 	flag.Parse()
 
+	if printVersion {
+		fmt.Println(versionStr)
+		os.Exit(0)
+	}
+
+	if printHelp {
+		fmt.Printf("%s - transcode media to Apple's ProRes encoding\n", name)
+		fmt.Printf("usage: %s -source /path/to/media/files -target /path/to/output/folder\n\n", name)
+		fmt.Println("options:")
+		flag.PrintDefaults()
+		fmt.Println(versionStr)
+		os.Exit(0)
+	}
+
 	if sourcePath == "" {
-		fmt.Fprintf(os.Stderr, "missing required -source argument\n")
+		fmt.Fprintf(os.Stderr, "missing required -source argument\ntry '%s -help' for usage information\n", name)
 		os.Exit(2)
 	}
 	if targetPath == "" {
-		fmt.Fprintf(os.Stderr, "missing required -target argument\n")
+		fmt.Fprintf(os.Stderr, "missing required -target argument\ntry '%s -help' for usage information\n", name)
 		os.Exit(2)
 	}