go fmt

addr.go

@@ -1,19 +1,19 @@
 package main
 
 import (
-	"net"
-	"github.com/vishvananda/netlink"
 	"fmt"
-	"log"
+	"github.com/vishvananda/netlink"
 	"io"
+	"log"
+	"net"
 )
 
 type AddrSet struct {
-	linkAttrs	netlink.LinkAttrs
+	linkAttrs netlink.LinkAttrs
-	linkChan	chan netlink.LinkUpdate
+	linkChan  chan netlink.LinkUpdate
-	addrChan	chan netlink.AddrUpdate
+	addrChan  chan netlink.AddrUpdate
 
-	addrs	map[string]net.IP
+	addrs map[string]net.IP
 }
 
 func (addrs *AddrSet) String() string {
@@ -21,7 +21,7 @@ func (addrs *AddrSet) String() string {
 }
 
 func (addrs *AddrSet) testFlag(flag net.Flags) bool {
-	return addrs.linkAttrs.Flags & flag != 0
+	return addrs.linkAttrs.Flags&flag != 0
 }
 
 func (addrs *AddrSet) Up() bool {

dns.go

@@ -1,18 +1,19 @@
 package main
 
 import (
-	"github.com/miekg/dns"
 	"fmt"
-	"time"
+	"github.com/miekg/dns"
 	"log"
 	"net"
+	"time"
 )
 
 const TSIG_FUDGE_SECONDS = 300
+
 type TSIGAlgorithm string
 
 func (t *TSIGAlgorithm) UnmarshalFlag(value string) error {
-	switch (value) {
+	switch value {
 	case "hmac-md5", "md5":
 		*t = dns.HmacMD5
 	case "hmac-sha1", "sha1":

main.go

@@ -8,24 +8,25 @@ import (
 )
 
 type Options struct {
-	Verbose			bool	`long:"verbose" short:"v"`
+	Verbose bool `long:"verbose" short:"v"`
-	Watch			bool	`long:"watch" description:"Watch for interface changes"`
+	Watch   bool `long:"watch" description:"Watch for interface changes"`
 
-	Interface		string	`long:"interface" short:"i" value-name:"IFACE" description:"Use address from interface"`
+	// Netlink Interface
-	InterfaceFamily	Family	`long:"interface-family" value-name:"ipv4|ipv6|all" description:"Limit to interface addreses of given family"`
+	Interface       string `long:"interface" short:"i" value-name:"IFACE" description:"Use address from interface"`
+	InterfaceFamily Family `long:"interface-family" value-name:"ipv4|ipv6|all" description:"Limit to interface addreses of given family"`
 
-	Server		string	`long:"server" value-name:"HOST[:PORT]" description:"Server for UPDATE query, default is discovered from zone SOA"`
+	// DNS Update
-	Timeout		time.Duration `long:"timeout" value-name:"DURATION" default:"10s" description:"Timeout for sever queries"`
+	Server        string        `long:"server" value-name:"HOST[:PORT]" description:"Server for UPDATE query, default is discovered from zone SOA"`
-	Retry		time.Duration `long:"retry" value-name:"DURATION" default:"30s" description:"Retry interval, increased for each retry attempt"`
+	Timeout       time.Duration `long:"timeout" value-name:"DURATION" default:"10s" description:"Timeout for sever queries"`
-	TSIGName	string	`long:"tsig-name" value-name:"FQDN"`
+	Retry         time.Duration `long:"retry" value-name:"DURATION" default:"30s" description:"Retry interval, increased for each retry attempt"`
-	TSIGSecret	string	`long:"tsig-secret" value-name:"BASE-64" env:"TSIG_SECRET" description:"base64-encoded shared TSIG secret key"`
+	TSIGName      string        `long:"tsig-name" value-name:"FQDN"`
+	TSIGSecret    string        `long:"tsig-secret" value-name:"BASE-64" env:"TSIG_SECRET" description:"base64-encoded shared TSIG secret key"`
 	TSIGAlgorithm TSIGAlgorithm `long:"tsig-algorithm" value-name:"hmac-{md5,sha1,sha256,sha512}" default:"hmac-sha1."`
+	Zone          string        `long:"zone" value-name:"FQDN" description:"Zone to update, default is derived from name"`
+	TTL           time.Duration `long:"ttl" value-name:"DURATION" default:"60s" description:"TTL for updated records"`
 
-	Zone		string	`long:"zone" value-name:"FQDN" description:"Zone to update, default is derived from name"`
+	Args struct {
-	TTL			time.Duration `long:"ttl" value-name:"DURATION" default:"60s" description:"TTL for updated records"`
+		Name string `value-name:"FQDN" description:"DNS Name to update"`
-
-	Args		struct {
-		Name		string	`value-name:"FQDN" description:"DNS Name to update"`
 	} `positional-args:"yes"`
 }
 
@@ -38,7 +39,7 @@ func main() {
 	}
 
 	var update = Update{
-		ttl:	 int(options.TTL.Seconds()),
+		ttl:     int(options.TTL.Seconds()),
 		timeout: options.Timeout,
 		retry:   options.Retry,
 		verbose: options.Verbose,

netlink.go

@@ -1,15 +1,15 @@
 package main
 
 import (
-	"github.com/vishvananda/netlink"
 	"fmt"
+	"github.com/vishvananda/netlink"
 )
 
 // zero value is unspec=all
 type Family int
 
 func (f *Family) UnmarshalFlag(value string) error {
-	switch (value) {
+	switch value {
 	case "unspec", "all":
 		*f = netlink.FAMILY_ALL
 	case "inet", "ipv4":
@@ -22,5 +22,3 @@ func (f *Family) UnmarshalFlag(value string) error {
 
 	return nil
 }
-
-

update.go

@@ -1,31 +1,31 @@
 package main
 
 import (
-	"github.com/miekg/dns"
-	"time"
 	"fmt"
-	"net"
+	"github.com/miekg/dns"
 	"log"
+	"net"
+	"time"
 )
 
 type updateState struct {
-	updateZone	string
+	updateZone  string
-	removeNames	[]dns.RR
+	removeNames []dns.RR
-	inserts		[]dns.RR
+	inserts     []dns.RR
 }
 
 type Update struct {
-	ttl		 int
+	ttl     int
-	timeout  time.Duration
+	timeout time.Duration
-	retry	 time.Duration
+	retry   time.Duration
-	verbose	 bool
+	verbose bool
 
-	zone	 string
+	zone string
-	name	 string
+	name string
 
-	tsig	 map[string]string
+	tsig     map[string]string
 	tsigAlgo TSIGAlgorithm
-	server	 string
+	server   string
 
 	updateChan chan updateState
 	doneChan   chan error
@@ -77,7 +77,7 @@ func (u *Update) buildAddr(ip net.IP) dns.RR {
 	if ip4 := ip.To4(); ip4 != nil {
 		return &dns.A{
 			Hdr: dns.RR_Header{Name: u.name, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: uint32(u.ttl)},
-			A:	 ip4,
+			A:   ip4,
 		}
 	}
 
@@ -93,10 +93,10 @@ func (u *Update) buildAddr(ip net.IP) dns.RR {
 func (u *Update) buildState(addrs *AddrSet) (state updateState, err error) {
 	state.updateZone = u.zone
 	state.removeNames = []dns.RR{
-		&dns.RR_Header{Name:u.name},
+		&dns.RR_Header{Name: u.name},
 	}
 
-	addrs.Each(func(ip net.IP){
+	addrs.Each(func(ip net.IP) {
 		state.inserts = append(state.inserts, u.buildAddr(ip))
 	})
 
@@ -173,7 +173,7 @@ func (u *Update) run() {
 	var updateChan = u.updateChan
 	var updateError error
 
-	defer func(){u.doneChan <-updateError}()
+	defer func() { u.doneChan <- updateError }()
 
 	for {
 		select {