Add config dir env variable

Dockerfile

@@ -14,6 +14,7 @@ EXPOSE 8080
 
 ENV YTDL_HTTP_PORT=8080 \
     YTDL_HTTP_LISTEN=0.0.0.0 \
-    YTDL_BINARYPATH=/usr/bin/yt-dlp
+    YTDL_BINARYPATH=/usr/bin/yt-dlp \
+    YTDL_CONFIGDIR=/config
 
 ENTRYPOINT [ "./ytdl-web" ]

README.md

@@ -23,6 +23,7 @@ You can configure the application using environment variables
 
 | Variable Name                      | Description                                                                                     | Default Value   | Accepted Values                                                                |
 | ---------------------------------- | ----------------------------------------------------------------------------------------------- | --------------- | ------------------------------------------------------------------------------ |
+| YTDL_CONFIGDIR                     | Add a custom config directory to search for the config file                                     | ` `             |                                                                                |
 | YTDL_ENV                           | The application environment                                                                     | `Production`    | `Development`, `Staging`, `Production`                                         |
 | YTDL_BINARYPATH                    | The path to the yt-dlp binary                                                                   | `yt-dlp`        |                                                                                |
 | YTDL_HTTP_PORT                     | The tcp port for the web server to listen on                                                    | `8080`          |                                                                                |

config/config.go

@@ -1,9 +1,11 @@
 package config
 
 import (
+	"os"
 	"strings"
 	"time"
 
+	"github.com/adrg/xdg"
 	"github.com/spf13/viper"
 )
 
@@ -88,10 +90,22 @@ func LoadConfig(paths ...string) (*Config, error) {
 			v.AddConfigPath(path)
 		}
 	} else {
+		envDir := os.Getenv("YTDL_CONFIGDIR")
+		if envDir != "" {
+			v.AddConfigPath(envDir)
+		}
+
 		v.AddConfigPath(".")
-		v.AddConfigPath("/etc/ytdl-web")
+
-		v.AddConfigPath("$HOME/.config/ytdl-web")
+		homeDir, err := os.UserHomeDir()
-		v.AddConfigPath("$XDG_CONFIG_HOME/ytdl-web")
+		if err == nil {
+			v.AddConfigPath(homeDir + "/.config/ytdl-web")
+		}
+
+		v.AddConfigPath(xdg.ConfigHome + "/ytdl-web")
+		for _, dir := range xdg.ConfigDirs {
+			v.AddConfigPath(dir + "/ytdl-web")
+		}
 	}
 
 	if err := v.ReadInConfig(); err != nil {

go.mod

@@ -3,6 +3,7 @@ module go.fifitido.net/ytdl-web
 go 1.20
 
 require (
+	github.com/adrg/xdg v0.4.0
 	github.com/dgraph-io/badger/v2 v2.2007.4
 	github.com/gofiber/fiber/v2 v2.44.0
 	github.com/gofiber/template v1.8.0

go.sum

@@ -55,6 +55,8 @@ github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKz
 github.com/Joker/jade v1.1.3/go.mod h1:T+2WLyt7VH6Lp0TRxQrUYEs64nRc83wkMQrfeIQKduM=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/adrg/xdg v0.4.0 h1:RzRqFcjH4nE5C6oTAxhBtoE2IRyjBSa62SCbyPidvls=
+github.com/adrg/xdg v0.4.0/go.mod h1:N6ag73EX4wyxeaoeHctc1mas01KZgsj5tYiAIwqJE/E=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@@ -657,6 +659,7 @@ golang.org/x/sys v0.0.0-20210908233432-aa78b53d3365/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211124211545-fe61309f8881/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211205182925-97ca703d548d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=