feat: Add query flag with RegExp and string.Contains() support

src/list.go

@@ -3,13 +3,15 @@ package src
 import (
 	"fmt"
 	"os"
+	"regexp"
 	"strings"
 
 	"github.com/caffeine-addictt/video-manager/src/utils"
 	"github.com/spf13/cobra"
 )
 
 var listFlags struct {
+	query     string
 	allowExt  []string
 	rejectExt []string
 	count     int
@@ -42,11 +44,24 @@ var listCommand = &cobra.Command{
 		Debug(fmt.Sprintf("Merged extensions: %v", extMap))
 
 		Info("Filtering extensions...")
-		if considerAllow || considerReject {
+		if considerAllow || considerReject || listFlags.query != "" {
 			for i := 0; i < len(filenames); i++ {
 				split := strings.Split(filenames[i], ".")
 				extension := split[len(split)-1]
 
+				// if !strings.Contains(filenames[i], listFlags.query) {
+				match, err := regexp.MatchString(listFlags.query, filenames[i])
+				if err != nil {
+					Info("RegExp failed to match " + filenames[i] + ": " + err.Error())
+				}
+
+				if (err != nil && !match) || (err == nil && !strings.Contains(filenames[i], listFlags.query)) {
+					Debug(fmt.Sprintf("%s does not contain or match %s", filenames[i], listFlags.query))
+					filenames[len(filenames)-1], filenames[i], filenames = "", filenames[len(filenames)-1], filenames[:len(filenames)-1]
+					i--
+					continue
+				}
+
 				_, ok := extMap[extension]
 				if (considerAllow && !ok) || (considerReject && ok) {
 					filenames[len(filenames)-1], filenames[i], filenames = "", filenames[len(filenames)-1], filenames[:len(filenames)-1]
@@ -66,6 +81,7 @@ var listCommand = &cobra.Command{
 func init() {
 	rootCommand.AddCommand(listCommand)
 	listCommand.Flags().IntVarP(&listFlags.count, "count", "n", 0, "Number of videos to list [0 = all] (defaults to 0)")
+	listCommand.Flags().StringVarP(&listFlags.query, "query", "q", "", "Query string to filter results (defaults to '')")
 	listCommand.Flags().StringSliceVarP(&listFlags.allowExt, "allow", "a", []string{}, "The extensions of the videos to list [mp4 etc.] (defaults to [])")
 	listCommand.Flags().StringSliceVarP(&listFlags.rejectExt, "exclude", "e", []string{}, "The extensions of the videos to list exclude [mp4 etc] (defaults to [])")