feat(cli): styled help page with herald-help module (#260)

* feat(cli): styled help page with herald-help module

* fix(cli): use configured theme for help output instead of herald default

Author: indaco

go.mod

@@ -9,6 +9,8 @@ require (
 	github.com/charmbracelet/colorprofile v0.4.3
 	github.com/goccy/go-yaml v1.19.2
 	github.com/indaco/herald v0.13.0
+	github.com/indaco/herald-help v0.1.0
+	github.com/indaco/herald-help/urfave v0.1.0
 	github.com/pelletier/go-toml/v2 v2.3.0
 	github.com/tidwall/sjson v1.2.5
 	github.com/urfave/cli/v3 v3.8.0

go.sum

@@ -52,6 +52,10 @@ github.com/goccy/go-yaml v1.19.2 h1:PmFC1S6h8ljIz6gMRBopkjP1TVT7xuwrButHID66PoM=
 github.com/goccy/go-yaml v1.19.2/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
 github.com/indaco/herald v0.13.0 h1:+xVG9Fx5NpuWhwku/9IlRL6I009NnX4VUGKvlZHTRxU=
 github.com/indaco/herald v0.13.0/go.mod h1:T5g1+XLYvpjouhzAGHnAHDCKizhESkoV6+QPZ3DhgWA=
+github.com/indaco/herald-help v0.1.0 h1:JsEmFxRRShDtANGVz+/ZmPjEIiQOKtMNI0E3pe+lyeY=
+github.com/indaco/herald-help v0.1.0/go.mod h1:mnoL86+af5sKcdRJYlzDxjo777C46pHOsqnYMHTSHU0=
+github.com/indaco/herald-help/urfave v0.1.0 h1:GzoKYGbTxrrRlHkl7f0xWx7NxNH7Nukb2sMAH01PVzM=
+github.com/indaco/herald-help/urfave v0.1.0/go.mod h1:7hOLaKl7Y+8HZZ6NEjAy2bbZ/pEyzJO2hI/geJhbD4c=
 github.com/lucasb-eyer/go-colorful v1.4.0 h1:UtrWVfLdarDgc44HcS7pYloGHJUjHV/4FwW4TvVgFr4=
 github.com/lucasb-eyer/go-colorful v1.4.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-runewidth v0.0.21 h1:jJKAZiQH+2mIinzCJIaIG9Be1+0NR+5sz/lYEEjdM8w=

internal/cli/cli.go

@@ -3,9 +3,12 @@ package cli
 import (
 	"context"
 	"fmt"
+	"io"
 	"os"
 	"strings"
 
+	heraldhelp "github.com/indaco/herald-help"
+	heraldurfave "github.com/indaco/herald-help/urfave"
 	"github.com/indaco/sley/internal/commands/bump"
 	"github.com/indaco/sley/internal/commands/changelog"
 	"github.com/indaco/sley/internal/commands/discover"
@@ -29,6 +32,16 @@ var (
 	themeFlag   string
 )
 
+func init() {
+	urfavecli.HelpPrinter = func(w io.Writer, _ string, data any) {
+		cmd, ok := data.(*urfavecli.Command)
+		if !ok {
+			return
+		}
+		_ = heraldhelp.RenderTo(w, printer.Typography(), heraldurfave.FromUrfave(cmd))
+	}
+}
+
 // New builds and returns the root CLI command,
 // configuring all subcommands and flags for the sley cli.
 func New(cfg *config.Config, registry *plugins.PluginRegistry) *urfavecli.Command {