Removed os/exec and added git.IsDirty check

Author: chand1012

cmd/commit.go

@@ -6,7 +6,6 @@ package cmd
 import (
 	"fmt"
 	"os"
-	"os/exec"
 
 	"github.com/chand1012/ottodocs/pkg/ai"
 	"github.com/chand1012/ottodocs/pkg/config"
@@ -34,16 +33,25 @@ var commitCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
+		dirty, err := git.IsDirty()
+		if err != nil {
+			log.Error(err)
+			os.Exit(1)
+		}
+
+		if !dirty {
+			log.Error("No changes to commit.")
+			os.Exit(1)
+		}
+
 		log.Info("Generating commit message...")
 		log.Debug("Getting git diff...")
-		c := exec.Command("git", "diff")
-		diffBytes, err := c.Output()
+		diff, err := git.Diff()
 		if err != nil {
 			log.Error(err)
 			os.Exit(1)
 		}
 
-		diff := string(diffBytes)
 		log.Debug("Sending diff to ChatGPT...")
 		msg, err := ai.CommitMessage(diff, conventional, conf)
 		if err != nil {

pkg/git/diff.go

@@ -0,0 +1,19 @@
+package git
+
+import "strings"
+
+func Diff() (string, error) {
+	return git("diff")
+}
+
+func Status() (string, error) {
+	return git("status")
+}
+
+func IsDirty() (bool, error) {
+	status, err := Status()
+	if err != nil {
+		return false, err
+	}
+	return !strings.Contains(status, "nothing to commit, working tree clean"), nil
+}