feat: man pages

closes #269

go.mod

@@ -17,7 +17,9 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/muesli/gitcha v0.3.0
 	github.com/muesli/go-app-paths v0.2.2
+	github.com/muesli/mango-cobra v1.2.0
 	github.com/muesli/reflow v0.3.0
+	github.com/muesli/roff v0.1.0
 	github.com/muesli/termenv v0.15.2
 	github.com/sahilm/fuzzy v0.1.1
 	github.com/spf13/cobra v1.7.0
@@ -51,6 +53,8 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/muesli/mango v0.1.0 // indirect
+	github.com/muesli/mango-pflag v0.1.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect

go.sum

@@ -216,8 +216,16 @@ github.com/muesli/gitcha v0.3.0 h1:+PJkVKrDXVB0VgRn/yVx2CqSVSDGMSepzvohsCrPYtQ=
 github.com/muesli/gitcha v0.3.0/go.mod h1:vX3jFL+XcEUq1uY74RCjLSZfAV+ZuvLg70/NGPdXn84=
 github.com/muesli/go-app-paths v0.2.2 h1:NqG4EEZwNIhBq/pREgfBmgDmt3h1Smr1MjZiXbpZUnI=
 github.com/muesli/go-app-paths v0.2.2/go.mod h1:SxS3Umca63pcFcLtbjVb+J0oD7cl4ixQWoBKhGEtEho=
+github.com/muesli/mango v0.1.0 h1:DZQK45d2gGbql1arsYA4vfg4d7I9Hfx5rX/GCmzsAvI=
+github.com/muesli/mango v0.1.0/go.mod h1:5XFpbC8jY5UUv89YQciiXNlbi+iJgt29VDC5xbzrLL4=
+github.com/muesli/mango-cobra v1.2.0 h1:DQvjzAM0PMZr85Iv9LIMaYISpTOliMEg+uMFtNbYvWg=
+github.com/muesli/mango-cobra v1.2.0/go.mod h1:vMJL54QytZAJhCT13LPVDfkvCUJ5/4jNUKF/8NC2UjA=
+github.com/muesli/mango-pflag v0.1.0 h1:UADqbYgpUyRoBja3g6LUL+3LErjpsOwaC9ywvBWe7Sg=
+github.com/muesli/mango-pflag v0.1.0/go.mod h1:YEQomTxaCUp8PrbhFh10UfbhbQrM/xJ4i2PB8VTLLW0=
 github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
 github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
+github.com/muesli/roff v0.1.0 h1:YD0lalCotmYuF5HhZliKWlIx7IEhiXeSfq7hNjFqGF8=
+github.com/muesli/roff v0.1.0/go.mod h1:pjAHQM9hdUUwm/krAfrLGgJkXJ+YuhtsfZ42kieB2Ig=
 github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
 github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=

main.go

@@ -384,7 +384,7 @@ func init() {
 	viper.SetDefault("style", glamour.AutoStyle)
 	viper.SetDefault("width", 0)
 
-	rootCmd.AddCommand(configCmd)
+	rootCmd.AddCommand(configCmd, manCmd)
 }
 
 func tryLoadConfigFromDefaultPlaces() {

man_cmd.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	mcobra "github.com/muesli/mango-cobra"
+	"github.com/muesli/roff"
+	"github.com/spf13/cobra"
+)
+
+var manCmd = &cobra.Command{
+	Use:                   "man",
+	Short:                 "Generates manpages",
+	SilenceUsage:          true,
+	DisableFlagsInUseLine: true,
+	Hidden:                true,
+	Args:                  cobra.NoArgs,
+	RunE: func(*cobra.Command, []string) error {
+		manPage, err := mcobra.NewManPage(1, rootCmd)
+		if err != nil {
+			return err
+		}
+		_, err = fmt.Fprint(os.Stdout, manPage.Build(roff.NewDocument()))
+		return err
+	},
+}