accept full metadata path for android

resolves #2

README.md

@@ -43,7 +43,7 @@ jobs:
     - uses: actions/checkout@v1
     - uses: ashutoshgngwr/validate-fastlane-supply-metadata@v1
       with:
-        fastlaneDir: ./fastlane # optional. default is './fastlane'.
+        fastlaneDir: ./android-metadata # optional. default is './fastlane/metadata/android'.
         # enable check to validate if a locale is supported by the Play Store Listing.
         usePlayStoreLocales: true # optional. default is false.
 ```

action.yaml

@@ -5,9 +5,9 @@ description: >-
   the Play Store listing constraints.
 inputs:
   fastlaneDir:
-    description: Path of the Fastlane directory
+    description: Path of the Fastlane Android directory
     required: false
-    default: ./fastlane
+    default: ./fastlane/metadata/android
   usePlayStoreLocales:
     description: Throw error if a locale isn't recognised by Google Play Store
     required: false

main.go

@@ -56,11 +56,10 @@ func init() {
 }
 
 func main() {
-	metadataPath := filepath.Join(fastlanePath, "metadata", "android")
-	files, err := ioutil.ReadDir(metadataPath)
+	files, err := ioutil.ReadDir(fastlanePath)
 	if err != nil {
 		const errFmt = "failed to read directory %q: %s\n"
-		fmt.Fprintf(os.Stderr, errFmt, metadataPath, err)
+		fmt.Fprintf(os.Stderr, errFmt, fastlanePath, err)
 		os.Exit(1)
 	}
 
@@ -71,7 +70,7 @@ func main() {
 			continue
 		}
 
-		localePath := filepath.Join(metadataPath, f.Name())
+		localePath := filepath.Join(fastlanePath, f.Name())
 		if usePlayStoreLocales && !playStoreLocales.contains(f.Name()) {
 			const errFmt = "play store doesn't recognise %q locale: closest alternative is %q"
 			errs = append(errs, &validationError{