add doc command

cmd/completion.go

@@ -0,0 +1,71 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var completionCmd = &cobra.Command{
+	Hidden: true,
+	Use:    "completion [bash|zsh|fish|powershell]",
+	Short:  "Generate completion script",
+	Long: `To load completions:
+
+Bash:
+
+  $ source <(yourprogram completion bash)
+
+  # To load completions for each session, execute once:
+  # Linux:
+  $ yourprogram completion bash > /etc/bash_completion.d/yourprogram
+  # macOS:
+  $ yourprogram completion bash > /usr/local/etc/bash_completion.d/yourprogram
+
+Zsh:
+
+  # If shell completion is not already enabled in your environment,
+  # you will need to enable it.  You can execute the following once:
+
+  $ echo "autoload -U compinit; compinit" >> ~/.zshrc
+
+  # To load completions for each session, execute once:
+  $ yourprogram completion zsh > "${fpath[1]}/_yourprogram"
+
+  # You will need to start a new shell for this setup to take effect.
+
+fish:
+
+  $ yourprogram completion fish | source
+
+  # To load completions for each session, execute once:
+  $ yourprogram completion fish > ~/.config/fish/completions/yourprogram.fish
+
+PowerShell:
+
+  PS> yourprogram completion powershell | Out-String | Invoke-Expression
+
+  # To load completions for every new session, run:
+  PS> yourprogram completion powershell > yourprogram.ps1
+  # and source this file from your PowerShell profile.
+`,
+	DisableFlagsInUseLine: true,
+	ValidArgs:             []string{"bash", "zsh", "fish", "powershell"},
+	Args:                  cobra.ExactValidArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		switch args[0] {
+		case "bash":
+			cmd.Root().GenBashCompletion(os.Stdout)
+		case "zsh":
+			cmd.Root().GenZshCompletion(os.Stdout)
+		case "fish":
+			cmd.Root().GenFishCompletion(os.Stdout, true)
+		case "powershell":
+			cmd.Root().GenPowerShellCompletionWithDesc(os.Stdout)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(completionCmd)
+}

cmd/configure.go

@@ -10,8 +10,8 @@ import (
 // configureCmd represents the configure command
 var configureCmd = &cobra.Command{
 	Use:   "configure",
-	Short: "configure saves the provided global flags to the config file",
-	Long: `configure saves the provided global flags to the config file.
+	Short: "Configure saves the provided global flags to the Config File",
+	Long: `Configure saves the provided global flags to the Config File.
 this makes using the cli easier as they don't have to be specifed all the time.`,
 	RunE: func(cmd *cobra.Command, args []string) error {
 

cmd/doc.go

@@ -0,0 +1,34 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/cobra/doc"
+)
+
+// configureCmd represents the configure command
+var genDocCmd = &cobra.Command{
+	Use:    "gendoc",
+	Hidden: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		docType, err := cmd.Flags().GetString("type")
+		if err != nil {
+			return err
+		}
+		cmd.DisableAutoGenTag = true
+		switch docType {
+		case "markdown":
+			return doc.GenMarkdownTree(rootCmd, "doc")
+		case "man":
+			return doc.GenManTree(rootCmd, nil, "man")
+		default:
+			return fmt.Errorf("Unknown type: %v", docType)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(genDocCmd)
+	genDocCmd.Flags().StringP("type", "t", "markdown", "what to generate, markdown or man")
+}

cmd/root.go

@@ -32,6 +32,8 @@ func Execute() {
 func init() {
 	cobra.OnInitialize(initConfig)
 
+	rootCmd.CompletionOptions.DisableDefaultCmd = true
+
 	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "Config File")
 
 	rootCmd.PersistentFlags().Bool("debug", false, "Enable Debug Logging")