1 files changed, 62 insertions, 0 deletions
diff --git a/isTracked.go b/isTracked.go
new file mode 100644
index 0000000..391ecd5
--- /dev/null
+++ b/isTracked.go
@@ -0,0 +1,62 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+
+	"go.wit.com/lib/protobuf/gitpb"
+)
+
+func isTracked(file string) (bool, error) {
+	cmd := exec.Command("git", "ls-files", "--error-unmatch", file)
+	err := cmd.Run()
+	if err == nil {
+		return true, nil
+	}
+	if exitError, ok := err.(*exec.ExitError); ok && exitError.ExitCode() == 1 {
+		return false, nil // File not tracked
+	}
+	return false, fmt.Errorf("error checking tracked status: %v", err)
+}
+
+func isIgnored(file string) (bool, error) {
+	cmd := exec.Command("git", "check-ignore", "-q", file)
+	err := cmd.Run()
+	if err == nil {
+		return true, nil
+	}
+	if exitError, ok := err.(*exec.ExitError); ok && exitError.ExitCode() == 1 {
+		return false, nil // File not ignored
+	}
+	return false, fmt.Errorf("error checking ignored status: %v", err)
+}
+
+func repoOwnsGoMod(repo *gitpb.Repo) (bool, error) {
+	os.Chdir(repo.FullPath)
+	file := "go.mod"
+
+	tracked, err := isTracked(file)
+	if err != nil {
+		fmt.Printf("%s Error checking if tracked: %v\n", repo.GoPath, err)
+		return false, err
+	}
+
+	if tracked {
+		fmt.Printf("%s %s is tracked by Git.\n", repo.GoPath, file)
+		return true, nil
+	}
+
+	ignored, err := isIgnored(file)
+	if err != nil {
+		fmt.Printf("%s Error checking if ignored: %v\n", repo.GoPath, err)
+		return false, err
+	}
+
+	if ignored {
+		fmt.Printf("%s %s is ignored by Git.\n", repo.GoPath, file)
+		return true, nil
+	}
+	fmt.Printf("%s %s is neither tracked nor ignored by Git.\n", repo.GoPath, file)
+	return false, nil
+}