fix: selector depth

README.md

@@ -137,7 +137,7 @@ go get -u github.com/lapwat/papeer
 ```sh
 # use platform=darwin for MacOS
 platform=linux
-release=0.4.0
+release=0.4.1
 
 # download and extract
 curl -L https://github.com/lapwat/papeer/releases/download/v$release/papeer-v$release-$platform-amd64.tar.gz > papeer.tar.gz
@@ -150,7 +150,7 @@ sudo mv papeer /usr/local/bin
 
 ### Windows
 
-Download [latest release](https://github.com/lapwat/papeer/releases/download/v0.4.0/papeer-v0.4.0-windows-amd64.exe.zip).
+Download [latest release](https://github.com/lapwat/papeer/releases/download/v0.4.1/papeer-v0.4.1-windows-amd64.exe.zip).
 
 ## MOBI support
 

cmd/get.go

@@ -104,6 +104,10 @@ var getCmd = &cobra.Command{
 			return errors.New("cannot use threads option if depth/selector is not specified")
 		}
 
+		if cmd.Flags().Changed("use-link-name") && getOpts.depth == 0 && len(getOpts.Selector) == 0 {
+			return errors.New("cannot use use-link-name option if depth/selector is not specified")
+		}
+
 		if cmd.Flags().Changed("delay") && cmd.Flags().Changed("threads") {
 			return errors.New("cannot use delay and threads options at the same time")
 		}
@@ -114,9 +118,11 @@ var getCmd = &cobra.Command{
 		url := args[0]
 
 		// fill selector array with empty selectors to match depth
-		for len(getOpts.Selector) < getOpts.depth+2 {
+		getOpts.Selector = append(getOpts.Selector, "")
+		for len(getOpts.Selector) < getOpts.depth+1 {
 			getOpts.Selector = append(getOpts.Selector, "")
 		}
+		fmt.Println(len(getOpts.Selector))
 
 		// generate config for each level
 		configs := make([]*book.ScrapeConfig, len(getOpts.Selector))

cmd/version.go

@@ -14,6 +14,6 @@ var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Print the version number of papeer",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("papeer v0.4.0")
+		fmt.Println("papeer v0.4.1")
 	},
 }