Docker, makefile, versioning, and go get

.gitignore

@@ -1 +1,2 @@
-/src/main/main
+golang-mud
+/dist

Dockerfile

@@ -0,0 +1,15 @@
+FROM alpine:latest
+
+# docker build expects binaries to have already been built
+ENV DIST_NAME golang-mud
+ENV APP_HOME /opt/mud
+WORKDIR $APP_HOME
+
+RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
+
+COPY ./dist $APP_HOME/
+COPY ./docker/* $APP_HOME/
+COPY ./resources $APP_HOME/resources
+RUN chmod +x $APP_HOME/$DIST_NAME && chmod +x $APP_HOME/*.sh
+
+ENTRYPOINT ["/opt/mud/entrypoint.sh"]

Makefile

@@ -0,0 +1,46 @@
+VERSION_FILE=VERSION
+
+SRC_PKGS=$(shell go list ./... | grep -v vendor)
+
+ifeq ($(strip $(NO_REV)),)
+	REV=$(shell git rev-parse --short HEAD)
+endif
+
+ifeq ($(BUILD_VERSION),)
+	VERSION=$(shell cat $(VERSION_FILE))
+	BUILD_VERSION_NO_REV=$(VERSION)
+	ifeq ($(strip $(REV)),)
+		BUILD_VERSION=$(VERSION)
+	else
+		BUILD_VERSION=$(VERSION)-$(REV)
+	endif
+endif
+
+IMAGE_REPO=golang-mud
+ifeq ($(IMAGE_NAME),)
+	IMAGE_NAME=$(IMAGE_REPO):$(BUILD_VERSION_NO_REV)
+endif
+
+.PHONY: clean image test
+
+all: compile
+
+clean:
+	go clean ./src/...
+	rm -rf dist
+
+compile:
+	CGO_ENABLED=0 go build -ldflags "-X main.appVersion=$(BUILD_VERSION)" .
+
+dist:
+	CGO_ENABLED=0 go build -ldflags "-X main.appVersion=$(BUILD_VERSION)" -o dist/golang-mud
+
+image:
+	docker build -t $(IMAGE_NAME) -t $(IMAGE_REPO):latest .
+
+test:
+	set -e;
+	for pkg in $(SRC_PKGS); \
+	do \
+		go test -v $$pkg; \
+	done

README.md

@@ -3,6 +3,17 @@
 Just tinkering with Go, using a MUD as an exercise to learn the language. If you are a Go-pro and see something I can
 improve, please let me know!
 
+## Installation
+
+```sh
+go get github.com/Saeven/golang-mud
+```
+
+## Usage
+
+```sh
+golang-mud run
+```
 
 ### Commands
 
@@ -12,4 +23,4 @@ command and its executable closure!
 
 ### Rooms
 
-Rooms are currently only implemented as basic structs. A web-based SPA room editor sure would be cool.
+Rooms are currently only implemented as basic structs. A web-based SPA room editor sure would be cool.

VERSION

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

docker/entrypoint.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+ls .
+ls -l $APP_HOME
+$APP_HOME/$DIST_NAME "$@"

go.mod

@@ -0,0 +1,5 @@
+module github.com/Saeven/golang-mud
+
+go 1.12
+
+require github.com/spf13/cobra v0.0.5

go.sum

@@ -0,0 +1,33 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
+github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
+github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
+github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
+github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s=
+github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
+github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
+github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
+github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
+github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
+golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

@@ -0,0 +1,95 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"math/rand"
+	"net"
+	"os"
+	"time"
+
+	mudcore "github.com/Saeven/golang-mud/src/saevenx"
+	"github.com/spf13/cobra"
+)
+
+var (
+	rootContext context.Context
+	appVersion  string
+	appName     string
+)
+
+const (
+	defaultVersion = "0.0.0-dev"
+	defaultAppName = "golang-mud"
+)
+
+func main() {
+	if appVersion == "" {
+		appVersion = defaultVersion
+	}
+
+	rand.Seed(time.Now().Unix())
+
+	rootContext = context.Background()
+	rootCmd.Execute()
+}
+
+func init() {
+	rootCmd.AddCommand(runCmd)
+	rootCmd.AddCommand(versionCmd)
+}
+
+var rootCmd = &cobra.Command{
+	Use:   appName,
+	Short: "",
+	Long:  "",
+}
+
+var runCmd = &cobra.Command{
+	Use:   "run",
+	Short: "run the mud server",
+	Long:  "run the mud server",
+	Run: func(cmd *cobra.Command, args []string) {
+		service := ":7777"
+
+		tcpAddr, err := net.ResolveTCPAddr("tcp4", service)
+		checkError(err)
+
+		listener, err := net.ListenTCP("tcp", tcpAddr)
+		checkError(err)
+		defer listener.Close()
+
+		mudcore.GetServer().Start()
+		listenForConnections(listener)
+	},
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "show version information",
+	Long:  "show version information",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Printf("%s v%s\n", appName, appVersion)
+	},
+}
+
+func listenForConnections(listener *net.TCPListener) {
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			continue
+		}
+		newDescriptor(conn)
+	}
+}
+
+func checkError(err error) {
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error())
+		os.Exit(1)
+	}
+}
+
+func newDescriptor(connection net.Conn) {
+	mudcore.ServerInstance.AddConnection(connection)
+}