Adds docs and cleanup

.gitignore

@@ -17,3 +17,4 @@ example/hello-updater
 example/public/*
 example/deployment/*
 example/go-selfupdate
+*cktime

README.md

@@ -1,5 +1,4 @@
-go-selfupdate
-=============
+# go-selfupdate
 
 [![GoDoc](https://godoc.org/github.com/sanbornm/go-selfupdate/selfupdate?status.svg)](https://godoc.org/github.com/sanbornm/go-selfupdate/selfupdate)
 [![Build Status](https://travis-ci.org/sanbornm/go-selfupdate.svg?branch=master)](https://travis-ci.org/sanbornm/go-selfupdate)
@@ -21,17 +20,21 @@ Enable your Golang applications to self update.  Inspired by Chrome based on Her
 ### Enable your App to Self Update
 
 	var updater = &selfupdate.Updater{
-		CurrentVersion: version,
-		ApiURL:         "http://updates.yourdomain.com/",
-		BinURL:         "http://updates.yourdomain.com/",
-		DiffURL:        "http://updates.yourdomain.com/",
-		Dir:            "update/",
-		CmdName:        "myapp", // app name
+		CurrentVersion: version, // the current version of your app used to determine if an update is necessary
+		// these endpoints can be the same if everything is hosted in the same place
+		ApiURL:         "http://updates.yourdomain.com/", // endpoint to get update manifest
+		BinURL:         "http://updates.yourdomain.com/", // endpoint to get full binaries
+		DiffURL:        "http://updates.yourdomain.com/", // endpoint to get binary diff/patches
+		Dir:            "update/",                        // directory to store temporary state files related to go-selfupdate
+		CmdName:        "myapp",                          // your app's name (must correspond to app name hosting the updates)
+		// app name allows you to serve updates for multiple apps on the same server/endpoint
 	}
 
+    // go look for an update when your app starts up
 	if updater != nil {
 		go updater.BackgroundRun()
 	}
+	// your app continues to run...
 
 ### Push Out and Update
 

example/src/example-server/main.go

@@ -1,10 +1,13 @@
 package main
 
 import (
+	"flag"
 	"log"
 	"net/http"
 )
 
+var servePath = flag.String("dir", "./public", "path to serve")
+
 type logHandler struct {
 	handler http.Handler
 }
@@ -15,8 +18,12 @@ func (lh *logHandler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
+	log.SetFlags(log.LstdFlags | log.Lshortfile)
+	flag.Parse()
+
 	// Simple static webserver with logging:
+	log.Printf("Starting HTTP server on :8080 serving path %q Ctrl + C to close and quit", *servePath)
 	log.Fatal(http.ListenAndServe(":8080", &logHandler{
-		handler: http.FileServer(http.Dir("./public"))},
+		handler: http.FileServer(http.Dir(*servePath))},
 	))
 }

example/src/hello-updater/main.go

@@ -25,13 +25,15 @@ var updater = &selfupdate.Updater{
 }
 
 func main() {
+	log.SetFlags(log.LstdFlags | log.Lshortfile)
+
 	// print the current version
 	log.Printf("(hello-updater) Hello world! I am currently version: %q", updater.CurrentVersion)
 
 	// try to update
 	err := updater.BackgroundRun()
 	if err != nil {
-		log.Fatal(err)
+		log.Fatalln("Failed to update app:", err)
 	}
 
 	// print out latest version available