linting: a few fixes

Makefile

@@ -41,7 +41,6 @@ metalinter: ensure_tools
 metalinter_test: ensure_tools
 	@gometalinter --install
 	gometalinter --vendor --deadline=600s --disable-all  \
-		--enable=aligncheck \
 		--enable=deadcode \
 		--enable=gas \
 		--enable=goconst \
@@ -49,6 +48,7 @@ metalinter_test: ensure_tools
 		--enable=gosimple \
 	 	--enable=ineffassign \
 	   	--enable=interfacer \
+		--enable=maligned \
 		--enable=megacheck \
 	 	--enable=misspell \
 		--enable=safesql \

embed_test.go

@@ -73,8 +73,8 @@ func TestEncodeDemo(t *testing.T) {
 		// Try to encode as binary
 		b, err := data.ToWire(tc.in)
 		if assert.Nil(err, "%d: %#v", i, tc.in) {
-			err := data.FromWire(b, tc.out)
+			err2 := data.FromWire(b, tc.out)
-			if assert.Nil(err) {
+			if assert.Nil(err2) {
 				assert.Equal(tc.expected, tc.out.String())
 			}
 		}
@@ -82,8 +82,8 @@ func TestEncodeDemo(t *testing.T) {
 		// Try to encode it as json
 		j, err := data.ToJSON(tc.in)
 		if assert.Nil(err, "%d: %#v", i, tc.in) {
-			err := data.FromJSON(j, tc.out)
+			err2 := data.FromJSON(j, tc.out)
-			if assert.Nil(err) {
+			if assert.Nil(err2) {
 				assert.Equal(tc.expected, tc.out.String())
 			}
 		}

keys/cryptostore/holder_test.go

@@ -50,22 +50,22 @@ func TestKeyManagement(t *testing.T) {
 	assert.NotNil(err)
 
 	// list shows them in order
-	keys, err := cstore.List()
+	keyS, err := cstore.List()
 	require.Nil(err)
-	require.Equal(2, len(keys))
+	require.Equal(2, len(keyS))
 	// note these are in alphabetical order
-	assert.Equal(n2, keys[0].Name)
+	assert.Equal(n2, keyS[0].Name)
-	assert.Equal(n1, keys[1].Name)
+	assert.Equal(n1, keyS[1].Name)
-	assert.Equal(i2.PubKey, keys[0].PubKey)
+	assert.Equal(i2.PubKey, keyS[0].PubKey)
 
 	// deleting a key removes it
 	err = cstore.Delete("bad name", "foo")
 	require.NotNil(err)
 	err = cstore.Delete(n1, p1)
 	require.Nil(err)
-	keys, err = cstore.List()
+	keyS, err = cstore.List()
 	require.Nil(err)
-	assert.Equal(1, len(keys))
+	assert.Equal(1, len(keyS))
 	_, err = cstore.Get(n1)
 	assert.NotNil(err)
 

keys/storage/filestorage/main.go

@@ -89,11 +89,10 @@ func (s FileStore) Get(name string) (salt []byte, key []byte, info keys.Info, er
 // Info for all keys located in this directory.
 func (s FileStore) List() (keys.Infos, error) {
 	dir, err := os.Open(s.keyDir)
-	defer dir.Close()
-
 	if err != nil {
 		return nil, errors.Wrap(err, "List Keys")
 	}
+	defer dir.Close()
 
 	names, err := dir.Readdirnames(0)
 	if err != nil {
@@ -141,11 +140,10 @@ func (s FileStore) nameToPaths(name string) (pub, priv string) {
 
 func readInfo(path string) (info keys.Info, err error) {
 	f, err := os.Open(path)
-	defer f.Close()
-
 	if err != nil {
 		return info, errors.Wrap(err, "Reading data")
 	}
+	defer f.Close()
 
 	d, err := ioutil.ReadAll(f)
 	if err != nil {
@@ -170,11 +168,10 @@ func readInfo(path string) (info keys.Info, err error) {
 
 func read(path string) (salt, key []byte, name string, err error) {
 	f, err := os.Open(path)
-	defer f.Close()
-
 	if err != nil {
 		return nil, nil, "", errors.Wrap(err, "Reading data")
 	}
+	defer f.Close()
 
 	d, err := ioutil.ReadAll(f)
 	if err != nil {
@@ -208,11 +205,10 @@ func read(path string) (salt, key []byte, name string, err error) {
 
 func writeInfo(path string, info keys.Info) error {
 	f, err := os.OpenFile(path, os.O_CREATE|os.O_EXCL|os.O_WRONLY, keyPerm)
-	defer f.Close()
-
 	if err != nil {
 		return errors.Wrap(err, "Writing data")
 	}
+	defer f.Close()
 
 	headers := map[string]string{"name": info.Name}
 	text := crypto.EncodeArmor(BlockType, headers, info.PubKey.Bytes())
@@ -223,11 +219,10 @@ func writeInfo(path string, info keys.Info) error {
 
 func write(path, name string, salt, key []byte) error {
 	f, err := os.OpenFile(path, os.O_CREATE|os.O_EXCL|os.O_WRONLY, keyPerm)
-	defer f.Close()
-
 	if err != nil {
 		return errors.Wrap(err, "Writing data")
 	}
+	defer f.Close()
 
 	headers := map[string]string{
 		"name": name,