feat: reading config from dot directory (#42)

.goreleaser.yaml

@@ -75,8 +75,7 @@ brews:
     test: |
       system "#{bin}/athenaeum --version"
     service: |
-      run [opt_bin/"athenaeum", "run" ,"--config", etc/"athenaeum.yaml"]
-      environment_variables ATHENAEUM_DB_ROOT: var/"athenaeum"
+      run [opt_bin/"athenaeum", "run"]
       keep_alive true
       error_log_path var/"log/athenaeum.log"
       log_path var/"log/athenaeum.log"

cmd/athenaeum/config.go

@@ -3,13 +3,16 @@ package main
 import (
 	"fmt"
 	"io"
+	"os"
+	"path/filepath"
 	"strings"
 
 	"github.com/spf13/viper"
 )
 
 const (
-	defaultPort = 8080
+	defaultPort      = 8080
+	defaultConfigDir = ".athenaeum"
 )
 
 type Config struct {
@@ -66,7 +69,6 @@ func InitConfig(cfg *Config, pathToConfigFile string, out io.Writer) error {
 	viper.SetDefault("Podcast.PreUnixEpoch.Handle", true)
 	viper.SetDefault("Media.HostPath", "/media")
 	viper.SetDefault("Media.Root", "/srv/media")
-	viper.SetDefault("DB.Root", "/usr/local/athenaeum")
 	viper.SetDefault("ThirdParty.UpdateOvercast", false)
 	viper.SetDefault("ThirdParty.NotifyOvercast", false)
 	viper.SetDefault("Port", defaultPort)
@@ -96,14 +98,28 @@ func InitConfig(cfg *Config, pathToConfigFile string, out io.Writer) error {
 	}
 
 	if pathToConfigFile == "" {
-		fmt.Fprintln(out, "No valid config path provided by flag or found from environment variable ATHENAEUM_CONFIG_PATH,",
-			"reading config from environment variables only")
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+		viper.AddConfigPath(filepath.Join(home, defaultConfigDir))
+		viper.SetConfigType("yaml")
+		viper.SetConfigName("config")
 	} else {
 		viper.SetConfigFile(pathToConfigFile)
-		err := viper.ReadInConfig()
+	}
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Fprintln(out, "Using config file:", viper.ConfigFileUsed())
+	} else {
+		fmt.Fprintln(out, "No valid config path provided by flag or found from environment variable ATHENAEUM_CONFIG_PATH,",
+			"reading config from environment variables only")
+	}
+	if viper.GetString("DB.Root") == "" {
+		home, err := os.UserHomeDir()
 		if err != nil {
-			return fmt.Errorf("config error: %w", err)
+			return err
 		}
+		viper.SetDefault("DB.Root", filepath.Join(home, defaultConfigDir, "data"))
 	}
 
 	err := viper.Unmarshal(cfg)

cmd/athenaeum/config_test.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"io/fs"
 	"os"
 	"path/filepath"
 	"testing"
@@ -138,10 +137,7 @@ func TestConfig_BadFile(t *testing.T) {
 	err := InitConfig(&config, "", &bytes.Buffer{})
 
 	// then
-	if assert.Error(t, err) {
-		var expectedErr *fs.PathError
-		assert.ErrorAs(t, err, &expectedErr)
-	}
+	assert.NoError(t, err)
 }
 
 func envVarSetter(t *testing.T, envs map[string]string) (closer func()) {