Implement CLI styling with Charm.sh tools for enhanced user experience

cmd/merge.go

@@ -6,6 +6,8 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/liamgallear/md_split/internal/style"
+	"github.com/schollz/progressbar/v3"
 	"github.com/spf13/cobra"
 )
 
@@ -55,7 +57,9 @@ func mergeMarkdown(cmd *cobra.Command, args []string) error {
 	}
 
 	// Merge the content
+	fmt.Println(style.Info("Merging split files..."))
 	var mergedContent strings.Builder
+	bar := progressbar.Default(int64(len(sortedFiles)))
 
 	for i, file := range sortedFiles {
 		content, err := os.ReadFile(file)
@@ -71,14 +75,15 @@ func mergeMarkdown(cmd *cobra.Command, args []string) error {
 			mergedContent.WriteString("\n\n")
 		}
 
-		fmt.Printf("Merged: %s\n", filepath.Base(file))
+		fmt.Println(style.FileMerged(filepath.Base(file)))
+		bar.Add(1)
 	}
 
 	// Write the merged content to output file
 	if err := os.WriteFile(outputFile, []byte(mergedContent.String()), 0644); err != nil {
 		return fmt.Errorf("error writing output file %s: %v", outputFile, err)
 	}
 
-	fmt.Printf("Successfully merged %d files into %s\n", len(sortedFiles), outputFile)
+	fmt.Printf("\n%s\n", style.Summary(fmt.Sprintf("Successfully merged %d files into %s", len(sortedFiles), outputFile)))
 	return nil
 }

cmd/root.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/liamgallear/md_split/internal/style"
 	"github.com/spf13/cobra"
 )
 
@@ -20,7 +21,7 @@ Available commands:
 
 func Execute() {
 	if err := rootCmd.Execute(); err != nil {
-		fmt.Println(err)
+		fmt.Fprintln(os.Stderr, style.Error(err.Error()))
 		os.Exit(1)
 	}
 }

cmd/split.go

@@ -7,6 +7,8 @@ import (
 	"regexp"
 	"strings"
 
+	"github.com/liamgallear/md_split/internal/style"
+	"github.com/schollz/progressbar/v3"
 	"github.com/spf13/cobra"
 )
 
@@ -52,6 +54,9 @@ func splitMarkdown(cmd *cobra.Command, args []string) error {
 	}
 
 	// Write each section to a separate file
+	fmt.Println(style.Info("Writing split files..."))
+	bar := progressbar.Default(int64(len(sections)))
+
 	for i, section := range sections {
 		filename := fmt.Sprintf("%02d-%s.md", i+1, sanitizeFilename(section.title))
 		filepath := filepath.Join(splitsDir, filename)
@@ -60,10 +65,11 @@ func splitMarkdown(cmd *cobra.Command, args []string) error {
 			return fmt.Errorf("error writing file %s: %v", filename, err)
 		}
 
-		fmt.Printf("Created: %s\n", filename)
+		fmt.Println(style.FileCreated(filename))
+		bar.Add(1)
 	}
 
-	fmt.Printf("Successfully split markdown into %d files in %s\n", len(sections), splitsDir)
+	fmt.Printf("\n%s\n", style.Summary(fmt.Sprintf("Successfully split markdown into %d files in %s", len(sections), splitsDir)))
 	return nil
 }
 

go.mod

@@ -2,9 +2,27 @@ module github.com/liamgallear/md_split
 
 go 1.24.7
 
-require github.com/spf13/cobra v1.10.1
+require (
+	github.com/charmbracelet/lipgloss v1.1.0
+	github.com/schollz/progressbar/v3 v3.18.0
+	github.com/spf13/cobra v1.10.1
+)
 
 require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
+	github.com/charmbracelet/x/ansi v0.8.0 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect
+	github.com/charmbracelet/x/term v0.2.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/spf13/pflag v1.0.9 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/term v0.28.0 // indirect
 )

go.sum

@@ -1,10 +1,55 @@
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.8.0 h1:9GTq3xq9caJW8ZrBTe0LIe2fvfLR/bYXKTx2llXn7xE=
+github.com/charmbracelet/x/ansi v0.8.0/go.mod h1:wdYl/ONOLHLIVmQaxbIYEC/cRKOQyjTkowiI4blgS9Q=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd h1:vy0GVL4jeHEwG5YOXDmi86oYw2yuYUGqz6a8sLwg0X8=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
+github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ=
+github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
+github.com/chengxilo/virtualterm v1.0.4 h1:Z6IpERbRVlfB8WkOmtbHiDbBANU7cimRIof7mk9/PwM=
+github.com/chengxilo/virtualterm v1.0.4/go.mod h1:DyxxBZz/x1iqJjFxTFcr6/x+jSpqN0iwWCOK1q10rlY=
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
+github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
+github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/schollz/progressbar/v3 v3.18.0 h1:uXdoHABRFmNIjUfte/Ex7WtuyVslrw2wVPQmCN62HpA=
+github.com/schollz/progressbar/v3 v3.18.0/go.mod h1:IsO3lpbaGuzh8zIMzgY3+J8l4C8GjO0Y9S69eFvNsec=
 github.com/spf13/cobra v1.10.1 h1:lJeBwCfmrnXthfAupyUTzJ/J4Nc1RsHC/mSRU2dll/s=
 github.com/spf13/cobra v1.10.1/go.mod h1:7SmJGaTHFVBY0jW4NXGluQoLvhqFQM+6XSKD+P4XaB0=
 github.com/spf13/pflag v1.0.9 h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=
 github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/term v0.28.0 h1:/Ts8HFuMR2E6IP/jlo7QVLZHggjKQbhu/7H0LJFr3Gg=
+golang.org/x/term v0.28.0/go.mod h1:Sw/lC2IAUZ92udQNf3WodGtn4k/XoLyZoh8v/8uiwek=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/style/style.go

@@ -0,0 +1,111 @@
+package style
+
+import (
+	"github.com/charmbracelet/lipgloss"
+)
+
+// Color definitions
+var (
+	// Primary colors
+	PrimaryColor   = lipgloss.Color("#00A86B") // Green
+	SecondaryColor = lipgloss.Color("#0066CC") // Blue
+
+	// Status colors
+	SuccessColor = lipgloss.Color("#00C851") // Success green
+	ErrorColor   = lipgloss.Color("#FF4444") // Error red
+	WarningColor = lipgloss.Color("#FFBB33") // Warning amber
+	InfoColor    = lipgloss.Color("#33B5E5") // Info blue
+
+	// Neutral colors
+	MutedColor = lipgloss.Color("#999999") // Muted gray
+)
+
+// Style definitions
+var (
+	// Header styles
+	TitleStyle = lipgloss.NewStyle().
+		Foreground(PrimaryColor).
+		Bold(true).
+		Margin(1, 0)
+
+	SubtitleStyle = lipgloss.NewStyle().
+		Foreground(SecondaryColor).
+		Bold(true)
+
+	// Message styles
+	SuccessStyle = lipgloss.NewStyle().
+		Foreground(SuccessColor).
+		Bold(true)
+
+	ErrorStyle = lipgloss.NewStyle().
+		Foreground(ErrorColor).
+		Bold(true)
+
+	WarningStyle = lipgloss.NewStyle().
+		Foreground(WarningColor).
+		Bold(true)
+
+	InfoStyle = lipgloss.NewStyle().
+		Foreground(InfoColor)
+
+	// File operation styles
+	FileCreatedStyle = lipgloss.NewStyle().
+		Foreground(SuccessColor)
+
+	FileMergedStyle = lipgloss.NewStyle().
+		Foreground(InfoColor)
+
+	// Summary styles
+	SummaryStyle = lipgloss.NewStyle().
+		Foreground(PrimaryColor).
+		Bold(true).
+		Margin(1, 0).
+		Padding(0, 1).
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(PrimaryColor)
+
+	// Helper text styles
+	MutedStyle = lipgloss.NewStyle().
+		Foreground(MutedColor)
+)
+
+// Helper functions for common operations
+func Success(text string) string {
+	return SuccessStyle.Render("✓ " + text)
+}
+
+func Error(text string) string {
+	return ErrorStyle.Render("✗ " + text)
+}
+
+func Warning(text string) string {
+	return WarningStyle.Render("⚠ " + text)
+}
+
+func Info(text string) string {
+	return InfoStyle.Render("ℹ " + text)
+}
+
+func FileCreated(filename string) string {
+	return FileCreatedStyle.Render("✓ Created: " + filename)
+}
+
+func FileMerged(filename string) string {
+	return FileMergedStyle.Render("📄 Merged: " + filename)
+}
+
+func Summary(text string) string {
+	return SummaryStyle.Render(text)
+}
+
+func Muted(text string) string {
+	return MutedStyle.Render(text)
+}
+
+func Title(text string) string {
+	return TitleStyle.Render(text)
+}
+
+func Subtitle(text string) string {
+	return SubtitleStyle.Render(text)
+}