Added feature to check total directory size and added testing

cmd/connorcli/root/root.go

@@ -10,6 +10,7 @@ import (
 	del "connorcli/cmd/connorcli/delete"
 	"connorcli/cmd/connorcli/list"
 	"connorcli/cmd/connorcli/rename"
+	"connorcli/cmd/connorcli/size"
 
 	"github.com/spf13/cobra"
 )
@@ -31,6 +32,7 @@ func RootCommand() *cobra.Command {
 	cmd.AddCommand(rename.RenameCommand())
 	cmd.AddCommand(del.DeleteCommand()) // Delete is a keyword I shouldn't use it
 	cmd.AddCommand(create.CreateCommand())
+	cmd.AddCommand(size.SizeCommand())
 
 	return cmd
 }

cmd/connorcli/size/size.go

@@ -0,0 +1,62 @@
+package size
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+func SizeCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:   "sz",
+		Short: "Finds the size of the current directory in Bytes",
+		Long:  "Finds the size of the files and current directory of all subdirectories measured in Bytes, can specify a directory with arguments",
+		Args:  cobra.MaximumNArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) == 1 {
+				if strings.HasPrefix(args[0], "./") && strings.HasSuffix(args[0], "/") {
+					fmt.Fprint(cmd.OutOrStdout(), getSize(args[0], 0), " Bytes\n")
+				} else {
+					dirName := args[0]
+					if !strings.HasPrefix(args[0], "./") {
+						dirName = "./" + dirName
+					}
+					if !strings.HasSuffix(args[0], "/") {
+						dirName += "/"
+					}
+					fmt.Fprint(cmd.OutOrStdout(), getSize(dirName, 0), " Bytes\n")
+				}
+			} else {
+				fmt.Fprint(cmd.OutOrStdout(), getSize("./", 0), " Bytes\n")
+			}
+		},
+	}
+
+}
+
+func getSize(dirName string, currSize int64) int64 {
+	// Recursively enter directories add file size to running total
+	files, err := os.ReadDir(dirName)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, file := range files {
+		var isHidden bool = strings.HasPrefix(file.Name(), ".")
+		if !isHidden && !file.IsDir() {
+			// Add file size
+			fileInfo, err := os.Stat(dirName + file.Name())
+			if err != nil {
+				log.Fatal(err)
+			}
+			currSize += fileInfo.Size()
+		} else if !isHidden && file.IsDir() {
+			currSize += getSize(dirName+file.Name()+"/", currSize)
+		}
+	}
+	return currSize
+}

cmd/connorcli/size/size_test.go

@@ -0,0 +1,30 @@
+package size_test
+
+import (
+	"bytes"
+	"connorcli/cmd/connorcli/size"
+	"testing"
+)
+
+func TestSizeCmd_Execute(t *testing.T) {
+	// Create Command
+	cmd := size.SizeCommand()
+
+	// Redirect stdout
+	var stdout bytes.Buffer
+	cmd.SetOut(&stdout)
+
+	// Catch Errors
+	err := cmd.Execute()
+
+	if err != nil {
+		t.Errorf("Unexpected Error: %v", err)
+	}
+
+	// Check if output is correct
+
+	expectedOutput := "2086 Bytes\n"
+	if stdout.String() != expectedOutput {
+		t.Errorf("Expected output: %q, but received: %q", expectedOutput, stdout.String())
+	}
+}