add config system

Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>

cmd/db/main.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"strings"
 
+	"git.g3e.fr/syonad/two/internal/config"
 	"git.g3e.fr/syonad/two/pkg/db/kv"
 	"github.com/dgraph-io/badger/v4"
 )
@@ -124,11 +125,15 @@ func printDB() {
 }
 
 func main() {
-	var conf kv.Config = kv.Config{
+	configuration, err := config.LoadConfig("./two.yaml")
-		Path: "./data/",
+	if err != nil {
+		fmt.Println(err)
+		return
 	}
 
-	DB = kv.InitDB(conf)
+	DB = kv.InitDB(kv.Config{
+		Path: configuration.Database.Path,
+	})
 	defer DB.Close()
 
 	printDB()

go.mod

@@ -7,15 +7,27 @@ require (
 	github.com/dgraph-io/badger/v4 v4.8.0 // indirect
 	github.com/dgraph-io/ristretto/v2 v2.2.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/google/flatbuffers v25.2.10+incompatible // indirect
 	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
+	github.com/sagikazarmark/locafero v0.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/spf13/viper v1.21.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/otel v1.37.0 // indirect
 	go.opentelemetry.io/otel/metric v1.37.0 // indirect
 	go.opentelemetry.io/otel/trace v1.37.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/net v0.41.0 // indirect
 	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 )

internal/config/struct.go

@@ -0,0 +1,30 @@
+package config
+
+import (
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Database struct {
+		Path string `mapstructure:"path"`
+	} `mapstructure:"database"`
+}
+
+func LoadConfig(path string) (*Config, error) {
+	v := viper.New()
+	v.SetConfigFile(path)
+	v.SetConfigType("yaml")
+
+	v.SetDefault("database.path", "./data/")
+
+	if err := v.ReadInConfig(); err != nil {
+		return nil, err
+	}
+
+	var cfg Config
+	if err := v.Unmarshal(&cfg); err != nil {
+		return nil, err
+	}
+
+	return &cfg, nil
+}