refactor: Configuration to separate file

Signed-off-by: Matej Focko <mfocko@redhat.com>

configuration.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v2"
+)
+
+type Config struct {
+	Gitea struct {
+		InstanceURL string `yaml:"instance_url"`
+		Owner       string `yaml:"owner"`
+		Repository  string `yaml:"repository"`
+	} `yaml:"gitea"`
+	Language struct {
+		OpeningOnSeparateLine bool   `yaml:"separate_opening"`
+		Opening               string `yaml:"opening"`
+		Continuation          string `yaml:"continuation"`
+		Closing               string `yaml:"closing"`
+	} `yaml:"language"`
+}
+
+func LoadConfig(config *Config, filename string) {
+	if filename == "" {
+		filename = ".frag_review.yml"
+	}
+
+	configFile, err := os.Open(filename)
+	ExitOnError(err)
+	defer configFile.Close()
+
+	decoder := yaml.NewDecoder(configFile)
+	err = decoder.Decode(&config)
+	ExitOnError(err)
+}

main.go

@@ -9,25 +9,8 @@ import (
 	"strconv"
 
 	"code.gitea.io/sdk/gitea"
-	"gopkg.in/yaml.v2"
 )
 
-type Config struct {
-	Gitea struct {
-		InstanceURL string `yaml:"instance_url"`
-		Owner       string `yaml:"owner"`
-		Repository  string `yaml:"repository"`
-	} `yaml:"gitea"`
-	Language struct {
-		OpeningOnSeparateLine bool   `yaml:"separate_opening"`
-		Opening               string `yaml:"opening"`
-		Continuation          string `yaml:"continuation"`
-		Closing               string `yaml:"closing"`
-	} `yaml:"language"`
-}
-
-var config Config = Config{}
-
 type ByLineNum []*gitea.PullReviewComment
 
 func (a ByLineNum) Len() int           { return len(a) }
@@ -138,23 +121,11 @@ func GetReviewsPerPR(client *gitea.Client, prID int64) []int64 {
 	return result
 }
 
-func LoadConfig(filename string) {
+var config Config = Config{}
-	if filename == "" {
-		filename = ".frag_review.yml"
-	}
-
-	configFile, err := os.Open(filename)
-	ExitOnError(err)
-	defer configFile.Close()
-
-	decoder := yaml.NewDecoder(configFile)
-	err = decoder.Decode(&config)
-	ExitOnError(err)
-}
 
 func main() {
 	token := os.Getenv("GITEA_TOKEN")
-	LoadConfig(os.Getenv("FRAG_REVIEW_CONFIG"))
+	LoadConfig(&config, os.Getenv("FRAG_REVIEW_CONFIG"))
 
 	client, err := gitea.NewClient(config.Gitea.InstanceURL, gitea.SetToken(token))
 	ExitOnError(err)