Fix #8: auto build binaries on push to master

.gitignore

@@ -1,3 +1,6 @@
 bin/
 vendor/
 *.coverprofile
+rokka_darwin_amd64
+rokka_linux_amd64
+rokka_windows_amd64.exe

.travis.yml

@@ -10,13 +10,27 @@ before_install:
   - go get -u golang.org/x/tools/cmd/goimports
   - go get github.com/mattn/goveralls
   - go get github.com/go-playground/overalls
+  - go get github.com/mitchellh/gox
 
-script:
-  # linting
-  - goimports -d ./
-  - go tool vet ./
-  # testing
-  - go test -v ./...
-  # coveralls.io (see https://github.com/golang/go/issues/6909 why the use of overalls)
-  - overalls -project=github.com/rokka-io/rokka-go -covermode=count
-  - goveralls -coverprofile=overalls.coverprofile -service=travis-ci
+script: ./.travis/test.sh
+
+stages:
+    - script: ./.travis/test.sh
+    - name: deploy
+      if: branch = master
+
+jobs:
+  include:
+    - stage: deploy
+      script: ./.travis/deploy.sh
+      go: 1.9
+      deploy:
+        provider: releases
+        api_key:
+          secure: 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
+        file:
+          - rokka_darwin_amd64
+          - rokka_linux_amd64
+          - rokka_windows_amd64.exe
+        on:
+          repo: rokka-io/rokka-go

.travis/deploy.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+DATE=`date -u '+%Y-%m-%d'`
+GIT_SHA=`git rev-parse --short HEAD`
+VERSION="$DATE.$GIT_SHA"
+
+gox -os="linux darwin windows" -arch="amd64" -ldflags "-X main.cliVersion=${VERSION}" ./cmd/rokka

.travis/test.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+# linting
+goimports -d ./
+go tool vet ./
+
+# testing
+go test -v ./...
+
+# coveralls.io (see https://github.com/golang/go/issues/6909 why the use of overalls)
+overalls -project=github.com/rokka-io/rokka-go -covermode=count
+goveralls -coverprofile=overalls.coverprofile -service=travis-ci

cmd/rokka/main.go

@@ -10,17 +10,25 @@ import (
 	"github.com/rokka-io/rokka-go/rokka"
 )
 
-var apiKey string
-var apiAddress string
-var verbose bool
-var logger cli.Log
+var (
+	// auto-set during build of CLI
+	cliVersion string = "unversioned"
+
+	apiKey     string
+	apiAddress string
+	verbose    bool
+	version    bool
+
+	logger cli.Log
+)
 
 func init() {
 	logger = cli.Log{}
 
 	flag.StringVar(&apiKey, "apiKey", "", "Optional API key")
 	flag.StringVar(&apiAddress, "apiAddress", "", "Optional API address")
 	flag.BoolVar(&verbose, "verbose", false, "Show verbose HTTP request/responses")
+	flag.BoolVar(&version, "version", false, "Print current version")
 
 	flag.Usage = func() {
 		logger.Errorf("Usage: %s <command>\n\n", os.Args[0])
@@ -33,6 +41,11 @@ func init() {
 func main() {
 	flag.Parse()
 
+	if version {
+		logger.Printf("Version: %s\n", cliVersion)
+		os.Exit(0)
+	}
+
 	args := flag.Args()
 
 	if len(args) == 0 {