feat(git): distinguish between packages that don't make use of git tags

src/git.rs

@@ -174,6 +174,15 @@ impl<'a> GitTags<'a> {
             .iter()
             .find_map(|possible_tag| self.0.iter().find(|&tag| tag.tag == **possible_tag))
     }
+
+    #[allow(dead_code)]
+    pub fn len(&self) -> usize {
+        self.0.len()
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.0.is_empty()
+    }
 }
 
 impl<'a> GitTag<'a> {

src/main.rs

@@ -224,7 +224,11 @@ fn main() -> Result<()> {
                 commit
             }
             None => {
-                println!("Found NO tag match with package {}", package.name);
+                if tags.is_empty() {
+                    println!("Package {} has no tags in git repository", package.name);
+                } else {
+                    println!("Found NO tag match with package {}", package.name);
+                }
 
                 match &cargo_vcs_info {
                     Some(cargo_vcs_info) => cargo_vcs_info.git.sha1.clone(),