feat: Enhance clipboard manager with logging, search, and status commands

.gitignore

@@ -0,0 +1 @@
+bin/kcm*

config.yml

@@ -8,6 +8,10 @@ logging:
   # Logging level. Can be 'debug', 'info', 'warning', 'error', or 'critical'.
   level: info
 
+  # Path to the log file. If not specified, the default will be ~/.local/share/kcm/kcm.log
+  # Logging to a file is only done when the watchdog is running as deamon.
+  # path:
+
 clipboard:
   # Maximum number of items to keep in the clipboard history.
   max_items: 100

src/commands/cmd_clear.go

@@ -1,8 +1,7 @@
 package commands
 
 import (
-	"fmt"
-
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/vleeuwenmenno/kcm/src/models"
 )
@@ -14,7 +13,7 @@ func NewClearCmd(history *models.History) *cobra.Command {
 		Aliases: []string{"--clear"},
 		Run: func(cmd *cobra.Command, args []string) {
 			history.Clear()
-			fmt.Println("Clipboard history cleared.")
+			log.Info().Msg("Clipboard history cleared")
 		},
 	}
 }

src/commands/cmd_copy.go

@@ -1,9 +1,9 @@
 package commands
 
 import (
-	"fmt"
 	"strconv"
 
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/vleeuwenmenno/kcm/src/models"
 	"golang.design/x/clipboard"
@@ -18,22 +18,21 @@ func NewCopyCmd(history *models.History) *cobra.Command {
 		Run: func(cmd *cobra.Command, args []string) {
 			index, err := strconv.Atoi(args[0])
 			if err != nil || index < 1 {
-				fmt.Println("Invalid index. Use the number shown in 'kcm list'.")
-				return
+				log.Fatal().Err(err).Msg("Invalid index")
 			}
 			history.ReloadIfChanged()
 			historyLen := len(history.Items)
 			if index > historyLen {
-				fmt.Printf("Index out of range. There are only %d items.\n", historyLen)
-				return
+				log.Fatal().Int("index", index).Int("historyLen", historyLen).Msg("Index out of range")
 			}
 			item := history.Items[index-1]
 			if err := clipboard.Init(); err != nil {
-				fmt.Println("Failed to initialize clipboard:", err)
-				return
+				log.Fatal().Err(err).Msg("Failed to initialize clipboard")
 			}
-			clipboard.Write(item.DataType, item.Data)
-			fmt.Printf("Copied item %d to clipboard.\n", index)
+
+			log.Info().Str("item", string(item.Data)).Msg("Active on the clipboard, you can now paste it...")
+			done := clipboard.Write(clipboard.FmtText, []byte(item.Data))
+			<-done // Wait for clipboard write to complete
 		},
 	}
 }

src/commands/cmd_list.go

@@ -8,13 +8,16 @@ import (
 )
 
 func NewListCmd(history *models.History) *cobra.Command {
-	return &cobra.Command{
+	var noTrunc bool
+	cmd := &cobra.Command{
 		Use:     "list",
 		Short:   "List clipboard history",
 		Aliases: []string{"--list"},
 		Run: func(cmd *cobra.Command, args []string) {
 			history.ReloadIfChanged()
-			history.List(os.Stdout)
+			history.List(os.Stdout, noTrunc)
 		},
 	}
+	cmd.Flags().BoolVar(&noTrunc, "no-trunc", false, "Do not truncate clipboard entries")
+	return cmd
 }

src/commands/cmd_search.go

@@ -0,0 +1,40 @@
+package commands
+
+import (
+	"regexp"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/vleeuwenmenno/kcm/src/models"
+	"golang.design/x/clipboard"
+)
+
+// NewSearchCmd creates a new search command for history entries using regex
+func NewSearchCmd(history *models.History) *cobra.Command {
+	return &cobra.Command{
+		Use:   "search [regex]",
+		Short: "Search clipboard history entries using a regex pattern",
+		Args:  cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			pattern := args[0]
+			re, err := regexp.Compile(pattern)
+			if err != nil {
+				log.Fatal().Err(err).Str("pattern", pattern).Msg("Invalid regex")
+			}
+
+			found := false
+			for i, item := range history.Items {
+				// Only search text entries
+				if item.DataType == clipboard.FmtText {
+					if re.Match(item.Data) {
+						log.Info().Int("index", i).Str("match", string(item.Data)).Msg("Regex match found")
+						found = true
+					}
+				}
+			}
+			if !found {
+				log.Info().Str("pattern", pattern).Msg("No matches found")
+			}
+		},
+	}
+}

src/commands/cmd_status.go

@@ -0,0 +1,30 @@
+package commands
+
+import (
+	"os/exec"
+	"strings"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+)
+
+// NewStatusCmd creates a new status command to check if the daemon is running.
+func NewStatusCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "status",
+		Short: "Check if the clipboard watcher daemon is running",
+		Run: func(cmd *cobra.Command, args []string) {
+			// Check for the process by name (simple approach)
+			out, err := exec.Command("ps", "-C", "kcm").Output()
+			if err != nil {
+				log.Fatal().Err(err).Msg("Failed to check kcm daemon status")
+			}
+			lines := strings.Split(string(out), "\n")
+			if len(lines) > 1 {
+				log.Info().Msg("kcm daemon is running.")
+			} else {
+				log.Warn().Msg("kcm daemon is not running, start a new one using `kcm watch`.")
+			}
+		},
+	}
+}

src/commands/cmd_watch.go

@@ -1,20 +1,56 @@
 package commands
 
 import (
+	"os"
 	"time"
 
+	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
+	"github.com/vleeuwenmenno/kcm/src/config"
 	"github.com/vleeuwenmenno/kcm/src/models"
 	"golang.design/x/clipboard"
 )
 
 func NewWatchCmd(history *models.History) *cobra.Command {
-	return &cobra.Command{
+	cmd := &cobra.Command{
 		Use:     "watch",
 		Short:   "Watch clipboard and store history",
 		Aliases: []string{"--watch"},
 		Run: func(cmd *cobra.Command, args []string) {
+			noDaemon, _ := cmd.Flags().GetBool("no-daemon")
+			if !noDaemon {
+				cfg, _ := config.LoadConfig()
+
+				// Set log file path since we are daemonizing
+				if cfg.Logging.Path != "" {
+					file, err := os.OpenFile(cfg.Logging.Path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+					if err != nil {
+						log.Fatal().AnErr("err", err).Msg("Failed to open log file")
+					}
+					multi := zerolog.MultiLevelWriter(file, os.Stderr)
+					log.Logger = log.Output(multi)
+				}
+
+				// Daemonize: fork and detach
+				execPath, err := os.Executable()
+				if err != nil {
+					log.Fatal().Err(err).Msg("Failed to get executable path for daemonizing")
+				}
+				if os.Getppid() != 1 {
+					attr := &os.ProcAttr{
+						Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
+						Env:   os.Environ(),
+					}
+					proc, err := os.StartProcess(execPath, os.Args, attr)
+					if err != nil {
+						log.Fatal().Err(err).Msg("Failed to daemonize")
+					}
+					log.Info().Msgf("Daemon started with PID %d", proc.Pid)
+					os.Exit(0)
+				}
+			}
+
 			log.Info().Msg("Starting clipboard watcher (golang.design/x/clipboard)...")
 
 			if err := clipboard.Init(); err != nil {
@@ -61,4 +97,6 @@ func NewWatchCmd(history *models.History) *cobra.Command {
 			}
 		},
 	}
+	cmd.Flags().Bool("no-daemon", false, "Run in foreground (do not daemonize)")
+	return cmd
 }

src/config/config.go

@@ -2,6 +2,8 @@ package config
 
 import (
 	"os"
+	"os/user"
+	"path/filepath"
 
 	"gopkg.in/yaml.v3"
 )
@@ -10,12 +12,23 @@ type Config struct {
 	Logging struct {
 		Format string `yaml:"format"`
 		Level  string `yaml:"level"`
+		Path   string `yaml:"path"`
 	} `yaml:"logging"`
 	Clipboard struct {
 		MaxItems int `yaml:"max_items"`
 	} `yaml:"clipboard"`
 }
 
+func logFilePath() string {
+	usr, err := user.Current()
+	if err != nil {
+		return "./kcm.log"
+	}
+	dir := filepath.Join(usr.HomeDir, ".local", "share", "kcm")
+	os.MkdirAll(dir, 0700)
+	return filepath.Join(dir, "kcm.log")
+}
+
 func LoadConfig() (Config, string) {
 	paths := []string{"/etc/kcm/config.yml", "./config.yml"}
 	var cfg Config
@@ -30,7 +43,9 @@ func LoadConfig() (Config, string) {
 			return cfg, path
 		}
 	}
+
 	cfg.Logging.Format = "console"
 	cfg.Logging.Level = "info"
+	cfg.Logging.Path = logFilePath()
 	return cfg, ""
 }

src/main.go

@@ -53,6 +53,8 @@ func main() {
 		commands.NewListCmd(history),
 		commands.NewClearCmd(history),
 		commands.NewCopyCmd(history),
+		commands.NewSearchCmd(history),
+		commands.NewStatusCmd(),
 	)
 
 	if err := rootCmd.Execute(); err != nil {

src/models/history.go

@@ -2,7 +2,6 @@ package models
 
 import (
 	"encoding/gob"
-	"fmt"
 	"io"
 	"os"
 	"os/user"
@@ -66,8 +65,6 @@ func (h *History) Add(item HistoryItem) {
 		} else {
 			log.
 				Info().
-				Str("hash", itemHash).
-				Str("hash_existing", utils.HashBytes(existing.Data)).
 				Str("timestamp", item.Timestamp.Format(time.RFC3339)).
 				Msg("Duplicate detected: replaced previous entry with new timestamp.")
 		}
@@ -90,7 +87,7 @@ func (h *History) Clear() error {
 	return h.Save()
 }
 
-func (h *History) List(w io.Writer) {
+func (h *History) List(w io.Writer, noTrunc bool) {
 	h.mu.Lock()
 	defer h.mu.Unlock()
 	for i, item := range h.Items {
@@ -98,7 +95,18 @@ func (h *History) List(w io.Writer) {
 		if item.DataType == clipboard.FmtImage {
 			typeStr = "image"
 		}
-		fmt.Fprintf(w, "%d: [%s] %s @ %s\n", i+1, typeStr, utils.Summary(item.Data, item.DataType), item.Timestamp.Format(time.RFC3339))
+		var msg string
+		if noTrunc {
+			msg = string(item.Data)
+		} else {
+			msg = utils.Summary(item.Data, item.DataType)
+		}
+		log.
+			Info().
+			Int("index", i+1).
+			Str("type", typeStr).
+			Str("timestamp", item.Timestamp.Format(time.RFC3339)).
+			Msg(msg)
 	}
 }
 

src/utils/summary.go

@@ -8,10 +8,17 @@ import (
 
 func Summary(data []byte, format clipboard.Format) string {
 	if format == clipboard.FmtText {
-		if len(data) > 40 {
-			return string(data[:40]) + "..."
+		// Remove newlines for summary
+		clean := make([]byte, 0, len(data))
+		for _, b := range data {
+			if b != '\n' && b != '\r' {
+				clean = append(clean, b)
+			}
 		}
-		return string(data)
+		if len(clean) > 40 {
+			return string(clean[:40]) + "..."
+		}
+		return string(clean)
 	}
 	if format == clipboard.FmtImage {
 		return "[image] " + strconv.Itoa(len(data)) + " bytes"