store: Get rid of `structs.go` as it only contains errors/config

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

pkg/store/store.go

@@ -1,6 +1,12 @@
 package store
 
-import log "github.com/Sirupsen/logrus"
+import (
+	"crypto/tls"
+	"errors"
+	"time"
+
+	log "github.com/Sirupsen/logrus"
+)
 
 // Backend represents a KV Store Backend
 type Backend string
@@ -14,9 +20,28 @@ const (
 	ZK = "zk"
 )
 
-// WatchCallback is used for watch methods on keys
-// and is triggered on key change
-type WatchCallback func(entries ...*KVPair)
+var (
+	// ErrNotSupported is exported
+	ErrNotSupported = errors.New("Backend storage not supported yet, please choose another one")
+	// ErrNotImplemented is exported
+	ErrNotImplemented = errors.New("Call not implemented in current backend")
+	// ErrNotReachable is exported
+	ErrNotReachable = errors.New("Api not reachable")
+	// ErrCannotLock is exported
+	ErrCannotLock = errors.New("Error acquiring the lock")
+	// ErrWatchDoesNotExist is exported
+	ErrWatchDoesNotExist = errors.New("No watch found for specified key")
+	// ErrKeyModified is exported
+	ErrKeyModified = errors.New("Unable to complete atomic operation, key modified")
+	// ErrKeyNotFound is exported
+	ErrKeyNotFound = errors.New("Key not found in store")
+)
+
+// Config contains the options for a storage client
+type Config struct {
+	TLS     *tls.Config
+	Timeout time.Duration
+}
 
 // Store represents the backend K/V storage
 // Each store should support every call listed
@@ -72,6 +97,10 @@ type KVPair struct {
 	LastIndex uint64
 }
 
+// WatchCallback is used for watch methods on keys
+// and is triggered on key change
+type WatchCallback func(entries ...*KVPair)
+
 // Locker provides locking mechanism on top of the store.
 // Similar to `sync.Lock` except it may return errors.
 type Locker interface {

pkg/store/structs.go

@@ -1,30 +0,0 @@
-package store
-
-import (
-	"crypto/tls"
-	"errors"
-	"time"
-)
-
-var (
-	// ErrNotSupported is exported
-	ErrNotSupported = errors.New("Backend storage not supported yet, please choose another one")
-	// ErrNotImplemented is exported
-	ErrNotImplemented = errors.New("Call not implemented in current backend")
-	// ErrNotReachable is exported
-	ErrNotReachable = errors.New("Api not reachable")
-	// ErrCannotLock is exported
-	ErrCannotLock = errors.New("Error acquiring the lock")
-	// ErrWatchDoesNotExist is exported
-	ErrWatchDoesNotExist = errors.New("No watch found for specified key")
-	// ErrKeyModified is exported
-	ErrKeyModified = errors.New("Unable to complete atomic operation, key modified")
-	// ErrKeyNotFound is exported
-	ErrKeyNotFound = errors.New("Key not found in store")
-)
-
-// Config contains the options for a storage client
-type Config struct {
-	TLS     *tls.Config
-	Timeout time.Duration
-}