refactor: expose APIs for finding git repo by different methods

pkg/git_tools/finder.go

@@ -0,0 +1,39 @@
+package git_tools
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func FindGitRepoRootUsingGit(dir string) (string, error) {
+	cmd := exec.Command("git", "rev-parse", "--show-toplevel")
+	cmd.Dir = dir
+	output, err := cmd.Output()
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(string(output)), nil
+}
+
+// FindGitRepoRootByTraversal finds the Git repository root for the given directory by manually checking for a .git directory.
+func FindGitRepoRootByTraversal(dir string) (string, error) {
+	currentPath, err := filepath.Abs(dir)
+	if err != nil {
+		return "", fmt.Errorf("failed to resolve absolute path for %s: %v", dir, err)
+	}
+
+	// Check up to the filesystem root
+	for currentPath != filepath.Dir(currentPath) { // Continue until the root directory is reached
+		if _, err := os.Stat(filepath.Join(currentPath, ".git")); err == nil {
+			return currentPath, nil
+		}
+
+		// Move up one directory level
+		currentPath = filepath.Dir(currentPath)
+	}
+
+	return "", fmt.Errorf("no Git repository found starting from directory %s", dir)
+}

pkg/utils/git.go → pkg/git_tools/git.go

@@ -1,7 +1,8 @@
-package utils
+package git_tools
 
 import (
 	"fmt"
+	"github.com/Excoriate/tftest/pkg/utils"
 	"os"
 	"path/filepath"
 )
@@ -21,7 +22,7 @@ func IsAGitRepository(repoRoot string, levels int) (gitRoot, subDir string, err
 		return "", "", fmt.Errorf("failed to resolve absolute path for %s: %v", repoRoot, err)
 	}
 
-	if err := DirExistAndHasContent(originalPath); err != nil {
+	if err := utils.DirExistAndHasContent(originalPath); err != nil {
 		return "", "", err
 	}