*: golint and cleanup

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

app.go

@@ -6,34 +6,8 @@
 
 package main
 
-import (
-	"flag"
-	"log"
+import "flag"
 
-	"github.com/fsnotify/fsnotify"
-)
-
-/*
-29044  2016-09-21 12:40:21 cd x
-29045  2016-09-21 12:40:25 touch file
-29046  2016-09-21 12:40:39 rm file
-29047  2016-09-21 12:40:42 touch file
-29048  2016-09-21 12:40:50 echo farts > file
-29049  2016-09-21 12:40:57 rm file
-
-produces:
-$ ./sync_pass x
-2016/09/21 12:40:25 event: "x/file": CREATE
-2016/09/21 12:40:25 event: "x/file": CHMOD
-2016/09/21 12:40:39 event: "x/file": REMOVE
-2016/09/21 12:40:42 event: "x/file": CREATE
-2016/09/21 12:40:42 event: "x/file": CHMOD
-2016/09/21 12:40:50 event: "x/file": WRITE
-2016/09/21 12:40:50 modified file: x/file
-2016/09/21 12:40:50 event: "x/file": WRITE
-2016/09/21 12:40:50 modified file: x/file
-2016/09/21 12:40:57 event: "x/file": REMOVE
-*/
 func main() {
 	flag.Parse()
 
@@ -41,32 +15,3 @@ func main() {
 		WathPath(arg)
 	}
 }
-
-func WathPath(path string) {
-	watcher, err := fsnotify.NewWatcher()
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer watcher.Close()
-
-	done := make(chan bool)
-	go func() {
-		for {
-			select {
-			case event := <-watcher.Events:
-				log.Println("event:", event)
-				if event.Op&fsnotify.Write == fsnotify.Write {
-					log.Println("modified file:", event.Name)
-				}
-			case err := <-watcher.Errors:
-				log.Println("error:", err)
-			}
-		}
-	}()
-
-	err = watcher.Add(path)
-	if err != nil {
-		log.Fatal(err)
-	}
-	<-done
-}

config.go

@@ -1,13 +1,18 @@
 package main
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"io"
+)
 
+// Config is the over all body for mapping the references to be synchronized
 type Config struct {
 	XMLName  xml.Name  `xml:"config"`
 	SyncRefs []SyncRef `xml:"refs>ref"`
 	Groups   []Group   `xml:"groups>group"`
 }
 
+// Group defines a set of references that changes will be propogated within
 type Group struct {
 	XMLName  xml.Name `xml:"group"`
 	ID       string   `xml:"id,attr"`
@@ -15,6 +20,7 @@ type Group struct {
 	Contains []string `xml:"contains>refID"`
 }
 
+// SyncRef is a reference to a location to be synchronized from/to
 type SyncRef struct {
 	XMLName  xml.Name `xml:"ref"`
 	ID       string   `xml:"id,attr"`
@@ -22,3 +28,20 @@ type SyncRef struct {
 	ReadOnly bool
 	Deletes  bool
 }
+
+// ReadConfig Parses a Config from an input
+func ReadConfig(r io.Reader) (*Config, error) {
+	dec := xml.NewDecoder(r)
+	config := Config{}
+	if err := dec.Decode(&config); err != nil {
+		return nil, err
+	}
+	return &config, nil
+}
+
+// WriteConfig marshals the Config to output w
+func WriteConfig(w io.Writer, config Config) error {
+	enc := xml.NewEncoder(w)
+	enc.Indent("", "  ")
+	return enc.Encode(config)
+}

config_test.go

@@ -1,7 +1,7 @@
 package main
 
 import (
-	"encoding/xml"
+	"bytes"
 	"net/url"
 	"testing"
 
@@ -34,13 +34,13 @@ func TestConfig(t *testing.T) {
 			},
 		},
 	}
-	buf, err := xml.MarshalIndent(config, "", "  ")
-	if err != nil {
+	buf := bytes.NewBuffer([]byte{})
+	if err := WriteConfig(buf, config); err != nil {
 		t.Fatal(err)
 	}
 
-	newConfig := Config{}
-	if err := xml.Unmarshal(buf, &newConfig); err != nil {
+	newConfig, err := ReadConfig(bytes.NewReader(buf.Bytes()))
+	if err != nil {
 		t.Fatal(err)
 	}