feat: Add command line arguments

internal/cui-args/args_reader.go

@@ -2,28 +2,38 @@ package cuiargs
 
 import (
 	"fmt"
+	"log"
 	"regexp"
 
 	models "gitea.likemath.ru/alex/gogrep/internal/models"
+	"github.com/alexflint/go-arg"
 )
 
 // ProcessConsoleArguments fills internal grep config
 // Returns error if arguments filling is correct, but arguments are incorrect
 // Panics and shows info if arguments are invalid
 func ProcessConsoleArguments() (*models.GrepConfigInternal, error) {
+	var args struct {
+		Path    string `arg:"positional" default:".*" help:"extra RegEx for paths to match"`
+		Pattern string `arg:"positional" help:"Regex for lines to match"`
+	}
+	arg.MustParse(&args)
+
+	if args.Pattern == "" {
+		log.Fatalf("No Pattern! Check `gogrep -h`")
+	}
+
 	res := &models.GrepConfigInternal{}
 
 	var err error
-	pathPattern := "git/hook"
-	res.PathPattern, err = regexp.Compile(pathPattern)
+	res.PathPattern, err = regexp.Compile(args.Path)
 	if err != nil {
-		return nil, fmt.Errorf("unable to compile path pattern Regexp: %v", pathPattern)
+		return nil, fmt.Errorf("unable to compile path pattern Regexp: %v", args.Path)
 	}
 
-	textPattern := "the commit"
-	res.TextPattern, err = regexp.Compile(textPattern)
+	res.TextPattern, err = regexp.Compile(args.Pattern)
 	if err != nil {
-		return nil, fmt.Errorf("unable to compile text pattern Regexp: %v", textPattern)
+		return nil, fmt.Errorf("unable to compile text pattern Regexp: %v", args.Pattern)
 	}
 	return res, nil
 }