Fix linter issues

Author: Alexey Boyko

.golangci.yml

@@ -35,3 +35,5 @@ linters:
   disable:
   - maligned
   - prealloc
+  - wsl
+  - gocognit

cmd/flora/flora.go

@@ -18,7 +18,8 @@ var (
 	VersionBuildDate  = "Unknown" //nolint:gochecknoglobals
 )
 
-func main() { //nolint:gocyclo
+//nolint:gocyclo,funlen
+func main() {
 	app := cli.NewApp()
 	app.Name = "flora"
 	app.Usage = "Simple app to upgrade your terraform"
@@ -144,7 +145,6 @@ func main() { //nolint:gocyclo
 					Name:  "current",
 					Usage: "Show currently used version of terraform",
 					Action: func(c *cli.Context) error {
-
 						homeDir, _ := homedir.Dir()
 						floraPath := path.Join(homeDir, ".flora")
 

unzip.go

@@ -11,21 +11,23 @@ import (
 )
 
 func unzip(src, dest string) ([]string, error) {
-
 	var filenames []string
 
 	r, err := zip.OpenReader(src)
+
 	if err != nil {
 		return filenames, err
 	}
+
 	defer r.Close()
 
 	for _, f := range r.File {
-
 		rc, err := f.Open()
+
 		if err != nil {
 			return filenames, err
 		}
+
 		defer rc.Close()
 
 		// Store filename/path for returning and using later on
@@ -37,9 +39,7 @@ func unzip(src, dest string) ([]string, error) {
 			if err = os.MkdirAll(fpath, os.ModePerm); err != nil {
 				return nil, err
 			}
-
 		} else {
-
 			// Make File
 			var fdir string
 			if lastIndex := strings.LastIndex(fpath, string(os.PathSeparator)); lastIndex > -1 {
@@ -61,8 +61,8 @@ func unzip(src, dest string) ([]string, error) {
 			if err != nil {
 				return filenames, err
 			}
-
 		}
 	}
+
 	return filenames, nil
 }

versions.go

@@ -100,6 +100,7 @@ func ListRemoteVersions() ([]*version.Version, error) {
 	versions = make([]*version.Version, len(versionsWrapper.Versions))
 
 	i := 0
+
 	for ver := range versionsWrapper.Versions {
 		versions[i], _ = version.NewVersion(ver)
 		i++
@@ -158,6 +159,7 @@ func getVersionMatchingConstraint(constraintString string, versions []*version.V
 func GetLatestVersionMatchingConstraint(versionConstraint string) string {
 	versions, _ := ListRemoteVersions()
 	tfVersion := getVersionMatchingConstraint(versionConstraint, versions)
+
 	if tfVersion == nil {
 		return ""
 	}