feat: viper for config

cmd/config.go

@@ -1,38 +1,31 @@
 package main
 
 import (
+	"github.com/spf13/viper"
+	"log"
 	"os"
-	"path"
 )
 
-func getHomeConfig() (string, error) {
-
-	config, err := os.UserHomeDir()
-	if err != nil {
-		return "", err
-	}
-
-	return path.Join(config, ".cued.json"), nil
+type Config struct {
+	Topics []string
 }
 
-func getUserConfig() (string, error) {
+func GetConfig() ([]string, error) {
+
 	config, err := os.UserConfigDir()
-	if err != nil {
-		return "", err
-	}
+	home, err := os.UserHomeDir()
 
-	return path.Join(config, "cued", "cued.json"), nil
-}
+	viper.SetConfigName("cued")
+	viper.SetConfigType("yml")
+	viper.AddConfigPath(config)
+	viper.AddConfigPath(home)
+	viper.AddConfigPath(".")
+	err = viper.ReadInConfig()
 
-func GetConfig() (string, error) {
-	config, err := getUserConfig()
 	if err != nil {
-		return "", err
+		log.Fatalf("Error while reading config file %s", err)
 	}
 
-	config, err = getHomeConfig()
-	if err != nil {
-		return "", err
-	}
+	return viper.GetStringSlice("topics"), nil
 
 }

go.mod

@@ -5,9 +5,29 @@ go 1.18
 require (
 	github.com/akamensky/argparse v1.4.0
 	github.com/olekukonko/tablewriter v0.0.5
+	github.com/spf13/viper v1.17.0
 )
 
 require (
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/sagikazarmark/locafero v0.3.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.10.0 // indirect
+	github.com/spf13/cast v1.5.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )