feat(config): add some more config options (#64)

## Add
Make these things configurable
- Expand aliases
- Suggest hidden files (#59)
- Toggle menu and mode 

```
[ui]
hidden-files = true # or false

[core]
expand-alias = true # or false

[keybindings]
toggle-mode = "ctrl+r"
toggle-menu = "ctrl+space"
```

- Auto reload config on changes: now just changes config and save the
file, IRIS will auto detect and reload in silent
- Added all these in config on init and docs

## Fix
I tested on holding backspace and the ghost text keep glitching so I
fixed it, this is just a small fix

docs/README.md

@@ -107,14 +107,20 @@ version = 1
 shell = ""        # "zsh", "bash", "fish", or empty for auto-detection
 mode = "last"     # "last", "spec", or "history"
 debug = false
+expand-alias = true
 
 [ui]
 style = "modern"  # "modern" or "classic"
 ghost-text = true
+hidden-files = false
 max-suggestions = 100
 max-height = 15
 nerd-fonts = true
 
+[keybindings]
+toggle-mode = "ctrl+r"
+toggle-menu = "ctrl+space"
+
 [git]
 filter-active-branch = true
 deduplicate-branches = true

integration/overlay.go

@@ -434,6 +434,24 @@ func (o *Overlay) GetGhostText(buffer string, cursorAtEnd bool) string {
 	return ""
 }
 
+func (o *Overlay) ClearGhostTextState() {
+	o.mu.Lock()
+	defer o.mu.Unlock()
+	o.LastGhostLen = 0
+}
+
+func (o *Overlay) HideGhostTextSync() string {
+	o.mu.Lock()
+	defer o.mu.Unlock()
+	if o.LastGhostLen > 0 {
+		padLen := o.LastGhostLen + 4
+		res := "\0337" + strings.Repeat(" ", padLen) + "\0338"
+		o.LastGhostLen = 0
+		return res
+	}
+	return ""
+}
+
 func (o *Overlay) RenderGhostText(buffer string, userNavigated bool, cursorAtEnd bool) string {
 	o.mu.Lock()
 	defer o.mu.Unlock()
@@ -757,7 +775,7 @@ func (o *Overlay) draw() string {
 	if !isClassic {
 		keyStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("#a277ff")).Bold(true)
 		tabKey := keyStyle.Render("<Tab>")
-		ctrlRKey := keyStyle.Render("<Ctrl+R>")
+		ctrlRKey := keyStyle.Render(config.FormatKeyName(config.Get().Keybindings.ToggleMode))
 		acceptText := lipgloss.NewStyle().Foreground(t.ScrollInfo).Render(" Accept")
 		modeText := lipgloss.NewStyle().Foreground(t.ScrollInfo).Render(" Mode")
 		footerInfo = fmt.Sprintf(" %s%s • %s%s ", tabKey, acceptText, ctrlRKey, modeText)

internal/config/config.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"path/filepath"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/BurntSushi/toml"
@@ -36,11 +37,13 @@ type CoreConfig struct {
 	Shell       string `toml:"shell"`
 	Mode        string `toml:"mode"`
 	Debug       bool   `toml:"debug"`
+	ExpandAlias bool   `toml:"expand-alias"`
 }
 
 type UIConfig struct {
 	Style           string `toml:"style"`
 	GhostText       bool   `toml:"ghost-text"`
+	ShowHiddenFiles bool   `toml:"hidden-files"`
 	MaxSuggestions  int    `toml:"max-suggestions"`
 	MaxHeight       int    `toml:"max-height"`
 	NerdFonts       bool   `toml:"nerd-fonts"`
@@ -57,6 +60,11 @@ type UpdaterConfig struct {
 	CheckInterval  Duration `toml:"check-interval"`
 }
 
+type KeybindingsConfig struct {
+	ToggleMode string `toml:"toggle-mode"`
+	ToggleMenu string `toml:"toggle-menu"`
+}
+
 type SuggestOnEmptyConfig struct {
 	Enabled       bool `toml:"enabled"`
 	DebounceMS    int  `toml:"debounce_ms"`
@@ -106,27 +114,59 @@ type Config struct {
 	Git         GitConfig         `toml:"git"`
 	Updater     UpdaterConfig     `toml:"updater"`
 	AI          AIConfig          `toml:"ai"`
+	Keybindings KeybindingsConfig `toml:"keybindings"`
 }
 
 var (
-	activeConfig *Config
+	activeConfig atomic.Pointer[Config]
 	once         sync.Once
 )
 
 func Get() *Config {
 	once.Do(func() {
-		if activeConfig == nil {
+		if activeConfig.Load() == nil {
-			activeConfig = DefaultConfig()
+			activeConfig.Store(DefaultConfig())
 		}
 	})
-	return activeConfig
+	return activeConfig.Load()
 }
 
 func Init(cfg *Config) {
-	activeConfig = cfg
+	activeConfig.Store(cfg)
 	once.Do(func() {})
 }
 
+func AutoDetectConfigChange(onReload func(cfg *Config)) {
+	path, err := ConfigPath()
+	if err != nil {
+		return
+	}
+	go func() {
+		var lastMod time.Time
+		if info, err := os.Stat(path); err == nil {
+			lastMod = info.ModTime()
+		}
+		ticker := time.NewTicker(1 * time.Second)
+		defer ticker.Stop()
+		for range ticker.C {
+			info, err := os.Stat(path)
+			if err == nil {
+				if !lastMod.IsZero() && info.ModTime().After(lastMod) {
+					lastMod = info.ModTime()
+					if newCfg, err := Load(); err == nil {
+						Init(newCfg)
+						if onReload != nil {
+							onReload(newCfg)
+						}
+					}
+				} else if lastMod.IsZero() {
+					lastMod = info.ModTime()
+				}
+			}
+		}
+	}()
+}
+
 func Load() (*Config, error) {
 	cfg := DefaultConfig()
 

internal/config/defaults.go

@@ -9,10 +9,12 @@ func DefaultConfig() *Config {
 			Shell:       "",
 			Mode:        "last",
 			Debug:       false,
+			ExpandAlias: true,
 		},
 		UI: UIConfig{
 			Style:           "modern",
 			GhostText:       true,
+			ShowHiddenFiles: false,
 			MaxSuggestions:  100,
 			MaxHeight:       15,
 			NerdFonts:       true,
@@ -38,6 +40,10 @@ func DefaultConfig() *Config {
 				MinIntervalMS: 5000,
 			},
 		},
+		Keybindings: KeybindingsConfig{
+			ToggleMode: "ctrl+r",
+			ToggleMenu: "shift+tab",
+		},
 	}
 }
 

internal/config/keys.go

@@ -0,0 +1,64 @@
+package config
+
+import (
+	"strings"
+)
+
+// MatchKey matches a sequence of terminal bytes against a configured key string.
+// Key strings can be e.g. "ctrl+r", "tab", "shift+tab", "right".
+// Returns matched=true if the byte sequence matches the configured key, and consumed=number of bytes to consume.
+func MatchKey(input []byte, expected string) (matched bool, consumed int) {
+	if len(input) == 0 {
+		return false, 0
+	}
+
+	expected = strings.ToLower(strings.TrimSpace(expected))
+
+	if strings.HasPrefix(expected, "ctrl+") && len(expected) == 6 {
+		char := expected[5]
+		if char >= 'a' && char <= 'z' {
+			targetByte := char - 'a' + 1
+			if input[0] == targetByte {
+				return true, 1
+			}
+		}
+	}
+
+	switch expected {
+	case "ctrl+space":
+		if input[0] == 0x00 {
+			return true, 1
+		}
+	case "tab":
+		if input[0] == 0x09 {
+			return true, 1
+		}
+	case "shift+tab":
+		// typically \033[Z
+		if len(input) >= 3 && input[0] == 0x1b && input[1] == '[' && input[2] == 'Z' {
+			return true, 3
+		}
+	case "right":
+		// typically \033[C or \033OC
+		if len(input) >= 3 && input[0] == 0x1b && (input[1] == '[' || input[1] == 'O') && input[2] == 'C' {
+			return true, 3
+		}
+	case "enter":
+		if input[0] == 0x0d || input[0] == 0x0a {
+			return true, 1
+		}
+	}
+
+	return false, 0
+}
+
+// FormatKeyName takes a config key string like "ctrl+r" and formats it for UI display, e.g. "<Ctrl+R>".
+func FormatKeyName(key string) string {
+	parts := strings.Split(key, "+")
+	for i, p := range parts {
+		if len(p) > 0 {
+			parts[i] = strings.ToUpper(p[:1]) + strings.ToLower(p[1:])
+		}
+	}
+	return "<" + strings.Join(parts, "+") + ">"
+}

root/config_cmd.go

@@ -50,6 +50,9 @@ mode = "last"
 # enable debug logging
 debug = false
 
+# auto expand alias when typing space
+expand-alias = true
+
 [ui]
 # visual style: "modern" (icons, category pills, shortcut footer) or "classic" (minimalist, centered number, no icons)
 style = "modern"
@@ -60,12 +63,22 @@ nerd-fonts = true
 # enable inline ghost text
 ghost-text = true
 
+# show hidden files (starting with dot) in file generator
+hidden-files = false
+
 # maximum suggestions to display
 max-suggestions = 100
 
 # maximum height of the overlay
 max-height = 15
 
+[keybindings]
+# toggle between spec and history mode
+toggle-mode = "ctrl+r"
+
+# toggle menu visibility
+toggle-menu = "ctrl+space"
+
 [git]
 # hide current branch in checkout/switch list
 filter-active-branch = true

root/init.go

@@ -186,6 +186,9 @@ mode = "last"
 # enable debug logging
 debug = false
 
+# automatically expand aliases on space
+expand-alias = true
+
 [ui]
 # visual style: "modern" (icons, category pills, shortcut footer) or "classic" (minimalist, centered number, no icons)
 style = "modern"
@@ -193,6 +196,9 @@ style = "modern"
 # enable Nerd Fonts icons in overlay menu
 nerd-fonts = true
 
+# show hidden files with dot prefix
+hidden-files = false
+
 # enable inline ghost text
 ghost-text = true
 
@@ -218,6 +224,12 @@ channel = "stable"
 
 # interval between update checks, e.g. "24h", "6h", "30m"
 check-interval = "24h"
+
+[keybindings]
+toggle_mode = "ctrl+r"
+toggle_menu = "shift+tab"
+select_suggestion = "tab"
+accept_suggestion = "right"
 `
 				if errWrite := os.WriteFile(path, []byte(defaultContent), 0644); errWrite == nil {
 					fmt.Printf("✓ Initialized default config file at %s\n", path)

root/wrapper.go

@@ -247,6 +247,8 @@ func runWrapper() {
 
 	overlay := integration.NewOverlay()
 
+
+
 	// start background update check (async)
 	pendingUpdate = startBackgroundUpdateCheck()
 	updatePrinted := false
@@ -256,6 +258,12 @@ func runWrapper() {
 		shellPGID = spec.ShellPID
 	}
 	var isCommandActive atomic.Bool
+	var disableGhostText atomic.Bool
+	disableGhostText.Store(!config.Get().UI.GhostText)
+	config.AutoDetectConfigChange(func(cfg *config.Config) {
+		disableGhostText.Store(!cfg.UI.GhostText)
+	})
+	var renderOverlay func()
 	isExecuting := func() bool {
 		if isCommandActive.Load() {
 			return true
@@ -311,10 +319,6 @@ func runWrapper() {
 		}
 	}()
 
-	var disableGhostText atomic.Bool
-	disableGhostText.Store(!config.Get().UI.GhostText)
-	var renderOverlay func()
-
 	// listen for suggestion requests from shell scripts via the ipc pipe
 	go func() {
 		defer func() {
@@ -576,9 +580,9 @@ func runWrapper() {
 		}
 
 		if renderTimer != nil {
-			renderTimer.Stop()
+			return
 		}
-		renderTimer = time.AfterFunc(25*time.Millisecond, func() {
+		renderTimer = time.AfterFunc(20*time.Millisecond, func() {
 			renderMu.Lock()
 			renderTimer = nil
 			renderMu.Unlock()
@@ -614,6 +618,21 @@ func runWrapper() {
 				b := inputSlice[i]
 				intercepted := false
 
+				if matched, consumed := config.MatchKey(inputSlice[i:], config.Get().Keybindings.ToggleMenu); matched {
+					intercepted = true
+					suggestionsEnabled = !suggestionsEnabled
+					logger.Debugf("Intercepted ToggleMenu, suggestionsEnabled=%v", suggestionsEnabled)
+					if !suggestionsEnabled {
+						writeStdout([]byte(overlay.ClearAndDisable()))
+					} else {
+						shouldOverlayDraw = true
+					}
+					i += consumed - 1
+					continue
+				}
+
+
+
 				if b == '\033' {
 					// check for bracketed paste start/end
 					if i+5 < n && inputSlice[i+1] == '[' && inputSlice[i+2] == '2' && inputSlice[i+3] == '0' {
@@ -628,20 +647,6 @@ func runWrapper() {
 					}
 					// handle escape sequences like arrow keys and functional shortcuts
 					if i+2 < n && (inputSlice[i+1] == '[' || inputSlice[i+1] == 'O') {
-						// shift tab: hide/unhide menu dropdown
-						if inputSlice[i+1] == '[' && inputSlice[i+2] == 'Z' {
-							intercepted = true
-							suggestionsEnabled = !suggestionsEnabled
-							logger.Debugf("Intercepted Shift+Tab, suggestionsEnabled=%v", suggestionsEnabled)
-							if !suggestionsEnabled {
-								writeStdout([]byte(overlay.ClearAndDisable()))
-							} else {
-								shouldOverlayDraw = true
-							}
-							i += 2
-							continue
-						}
-
 						if overlay.IsVisible() && (inputSlice[i+2] == 'A' || inputSlice[i+2] == 'B') {
 							intercepted = true
 							userNavigated.Store(true)
@@ -722,24 +727,6 @@ func runWrapper() {
 							}
 							i += 2
 							continue
-						} else if !disableGhostText.Load() && inputSlice[i+2] == 'C' { // right arrow
-							bufferMu.Lock()
-							atEnd := (cursorOffset == 0)
-							ghostText := overlay.GetGhostText(naiveBuffer, atEnd)
-							bufferMu.Unlock()
-
-							if len(ghostText) > 0 {
-								intercepted = true
-								logger.Debugf("Intercepted Right Arrow (accepted ghost text: %q)", ghostText)
-								bufferMu.Lock()
-								naiveBuffer += ghostText
-								cursorOffset = 0
-								bufferMu.Unlock()
-								_, _ = ptmx.Write([]byte(ghostText))
-								shouldOverlayDraw = true
-								i += 2
-								continue
-							}
 						}
 					}
 
@@ -775,6 +762,29 @@ func runWrapper() {
 								i += 2
 								continue
 							}
+
+							bufferMu.Lock()
+							atEnd := (cursorOffset == 0)
+							ghostText := ""
+							if !disableGhostText.Load() {
+								ghostText = overlay.GetGhostText(naiveBuffer, atEnd)
+							}
+							bufferMu.Unlock()
+
+							if len(ghostText) > 0 {
+								intercepted = true
+								logger.Debugf("Intercepted Right Arrow (accepted ghost text: %q)", ghostText)
+								bufferMu.Lock()
+								naiveBuffer += ghostText
+								cursorOffset = 0
+								bufferMu.Unlock()
+								overlay.ClearGhostTextState()
+								_, _ = ptmx.Write([]byte(ghostText))
+								shouldOverlayDraw = true
+								i += 2
+								continue
+							}
+
 							bufferMu.Lock()
 							if naiveBuffer != "" || overlay.IsVisible() {
 								cursorOffset--
@@ -813,7 +823,8 @@ func runWrapper() {
 					continue
 				}
 
-				if b == 0x12 { // ctrl+r: toggle between command specs and command history
+				if matched, consumed := config.MatchKey(inputSlice[i:], config.Get().Keybindings.ToggleMode); matched { // ctrl+r: toggle between command specs and command history
+					i += consumed - 1
 					intercepted = true
 					activeModeMu.Lock()
 					if activeMode == "spec" {
@@ -869,12 +880,33 @@ func runWrapper() {
 					}
 					renderMu.Unlock()
 
+					if cmdToSubmit == "" {
+						bufferMu.Lock()
+						cmdToSubmit = naiveBuffer
+						bufferMu.Unlock()
+					}
+
+					if strings.TrimSpace(cmdToSubmit) == "iris reload" {
+						if newCfg, err := config.Load(); err == nil {
+							config.Init(newCfg)
+							disableGhostText.Store(!newCfg.UI.GhostText)
+						}
+						// Clear the shell line with Ctrl+U, then echo message, then Enter
+						msg := "echo -e '\\033[32m✓ Iris configuration reloaded successfully.\\033[0m'\r"
+						_, _ = ptmx.Write(append([]byte{0x15}, []byte(msg)...))
+						bufferMu.Lock()
+						naiveBuffer = ""
+						cursorOffset = 0
+						bufferMu.Unlock()
+						disableGhostText.Store(false)
+						shouldOverlayDraw = false
+						userNavigated.Store(false)
+						continue
+					}
+
 					isCommandActive.Store(true)
 					_, _ = ptmx.Write([]byte{b})
 					bufferMu.Lock()
-					if cmdToSubmit == "" {
-						cmdToSubmit = naiveBuffer
-					}
 					lastSubmittedCommand = strings.TrimSpace(cmdToSubmit)
 					naiveBuffer = ""
 					cursorOffset = 0
@@ -930,12 +962,8 @@ func runWrapper() {
 						bufferMu.Unlock()
 
 						_, _ = ptmx.Write(append([]byte{0x15}, selected...))
-
+						overlay.ResetCursor()
-						overlay.ResetCursor() // this prevents when you tab, it switches between suggestions non-stop
+						shouldOverlayDraw = true
-
-						shouldOverlayDraw = true // <- rerender after tab to choose, if you set to false,
-						// when you press tab continually, it will print all folder from menu suggestions
-						// and make the cursor jump to next line
 						userNavigated.Store(false)
 					}
 					continue
@@ -1034,8 +1062,9 @@ func runWrapper() {
 						// track normal printable characters in the buffer for matching
 						if b >= 32 && b <= 126 {
 							// expand alias on space, but only when typing manually (not pasting)
+							// and only if expand-alias configuration is enabled
 							bufferMu.Lock()
-							isSpaceAlias := !inBracketedPaste && b == ' ' && naiveBuffer != "" && !strings.Contains(naiveBuffer, " ")
+							isSpaceAlias := config.Get().Core.ExpandAlias && !inBracketedPaste && b == ' ' && naiveBuffer != "" && !strings.Contains(naiveBuffer, " ")
 							var target string
 							var ok bool
 							if isSpaceAlias {

spec/filegen.go

@@ -6,6 +6,8 @@ import (
 	"path/filepath"
 	"sort"
 	"strings"
+
+	"github.com/versenilvis/iris/internal/config"
 )
 
 // for tracking current working dir
@@ -34,7 +36,7 @@ func GetCWD() string {
 // dir = "src/", filePrefix = "mai"
 // search for which matches "mai" case, and show it (whici is both main.go and main.py)
 // but if you type "go run src/mai" -> it will only shows suggestion about src/main.go
-// NOTE: it will skip hidden file start with dot prefix
+// NOTE: it will skip hidden file start with dot prefix unless configured otherwise
 func FileGenerator(filters ...string) GeneratorFunc {
 	dirOnly := false
 	filterSet := make(map[string]bool)
@@ -82,8 +84,8 @@ func FileGenerator(filters ...string) GeneratorFunc {
 		for _, entry := range entries {
 			name := entry.Name()
 
-			// skip hidden files
+			// skip hidden files if not configured to show them
-			if strings.HasPrefix(name, ".") {
+			if !config.Get().UI.ShowHiddenFiles && strings.HasPrefix(entry.Name(), ".") {
 				continue
 			}