gometalinter on ci and some fixes

.travis.yml

@@ -1,11 +1,18 @@
 language: go
 go: 1.7.4
 install:
+  - go get github.com/alecthomas/gometalinter
   - go get github.com/Masterminds/glide
   - glide install
 script:
   - go test -cover `glide nv`
+  - gometalinter --vendor --disable-all \
+    --enable=deadcode \
+    --enable=ineffassign \
+    --enable=gosimple \
+    --enable=staticcheck \
+    ./...
 after_success:
   test ! -z "$TRAVIS_TAG" && go run main.go
 notifications:
-  email: false
+  email: false

config/config.go

@@ -54,7 +54,9 @@ func Load(file string) (config ProjectConfig, err error) {
 	if err != nil {
 		return config, err
 	}
-	err = yaml.Unmarshal(data, &config)
+	if err := yaml.Unmarshal(data, &config); err != nil {
+		return config, err
+	}
 	config.fillBasicData()
 	if err := config.fillFiles(); err != nil {
 		return config, err

pipeline/compress/compress.go

@@ -51,10 +51,7 @@ func create(system, arch string, config config.ProjectConfig) error {
 			return err
 		}
 	}
-	if err := addFile(tw, config.BinaryName+ext(system), binaryPath(system, arch, config.BinaryName)); err != nil {
-		return err
-	}
-	return nil
+	return addFile(tw, config.BinaryName+ext(system), binaryPath(system, arch, config.BinaryName))
 }
 
 func addFile(tw *tar.Writer, name, path string) error {