Golint2 (#280)

* Fix linter errors

* More linting fixes

* More docs and making members private that dont need to be public

* Fix linter errors

* More linting fixes

* More docs and making members private that dont need to be public

* More lint fixes

This leaves:

~~~
middleware/kubernetes/nametemplate/nametemplate.go:64:6: exported type NameTemplate should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:71:1: exported method NameTemplate.SetTemplate should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:108:1: exported method NameTemplate.GetZoneFromSegmentArray should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:116:1: exported method NameTemplate.GetNamespaceFromSegmentArray should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:120:1: exported method NameTemplate.GetServiceFromSegmentArray should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:124:1: exported method NameTemplate.GetTypeFromSegmentArray should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:135:1: exported method NameTemplate.GetSymbolFromSegmentArray should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:167:1: exported method NameTemplate.IsValid should have comment or be unexported
middleware/kubernetes/nametemplate/nametemplate.go:182:6: exported type NameValues should have comment or be unexported
middleware/kubernetes/util/util.go:1:1: package comment should be of the form "Package util ..."
middleware/kubernetes/util/util.go:27:2: exported const WildcardStar should have comment (or a comment on this block) or be unexported
middleware/proxy/lookup.go:66:1: exported method Proxy.Forward should have comment or be unexported
middleware/proxy/proxy.go:24:6: exported type Client should have comment or be unexported
middleware/proxy/proxy.go:107:1: exported function Clients should have comment or be unexported
middleware/proxy/reverseproxy.go:10:6: exported type ReverseProxy should have comment or be unexported
middleware/proxy/reverseproxy.go:16:1: exported method ReverseProxy.ServeDNS should have comment or be unexported
middleware/proxy/upstream.go:42:6: exported type Options should have comment or be unexported
~~~

I plan on reworking the proxy anyway, so I'll leave that be.

1 files changed, 4 insertions, 11 deletions

diff --git a/middleware/kubernetes/handler.go b/middleware/kubernetes/handler.go
index 8e8ae15fa..1b1abf44b 100644
--- a/middleware/kubernetes/handler.go
+++ b/middleware/kubernetes/handler.go
@@ -11,6 +11,7 @@ import (
 	"golang.org/x/net/context"
 )
 
+// ServeDNS implements the middleware.Handler interface.
 func (k Kubernetes) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
 	state := request.Request{W: w, Req: r}
 	if state.QClass() != dns.ClassINET {
@@ -29,7 +30,7 @@ func (k Kubernetes) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.M
 			srvPTR := &records[0]
 			m.Answer = append(m.Answer, srvPTR.NewPTR(state.QName(), ip))
 
-			m = dedup(m)
+			m = dnsutil.Dedup(m)
 			state.SizeAndDo(m)
 			m, _ = state.Scrub(m)
 			w.WriteMsg(m)
@@ -93,14 +94,14 @@ func (k Kubernetes) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.M
 	m.Answer = append(m.Answer, records...)
 	m.Extra = append(m.Extra, extra...)
 
-	m = dedup(m)
+	m = dnsutil.Dedup(m)
 	state.SizeAndDo(m)
 	m, _ = state.Scrub(m)
 	w.WriteMsg(m)
 	return dns.RcodeSuccess, nil
 }
 
-// NoData write a nodata response to the client.
+// Err writes an error response back to the client.
 func (k Kubernetes) Err(zone string, rcode int, state request.Request) (int, error) {
 	m := new(dns.Msg)
 	m.SetRcode(state.Req, rcode)
@@ -109,11 +110,3 @@ func (k Kubernetes) Err(zone string, rcode int, state request.Request) (int, err
 	state.W.WriteMsg(m)
 	return rcode, nil
 }
-
-func dedup(m *dns.Msg) *dns.Msg {
-	// TODO(miek): expensive!
-	m.Answer = dns.Dedup(m.Answer, nil)
-	m.Ns = dns.Dedup(m.Ns, nil)
-	m.Extra = dns.Dedup(m.Extra, nil)
-	return m
-}