feat(git): latest with one tag should include root

git-cliff-core/src/repo.rs

@@ -72,13 +72,21 @@ impl Repository {
 	pub fn commits(
 		&self,
 		range: Option<&str>,
+		include_root: bool,
 		include_path: Option<Vec<Pattern>>,
 		exclude_path: Option<Vec<Pattern>>,
 	) -> Result<Vec<Commit>> {
 		let mut revwalk = self.inner.revwalk()?;
 		revwalk.set_sorting(Sort::TOPOLOGICAL)?;
 		if let Some(range) = range {
-			revwalk.push_range(range)?;
+			// Push only the last range commit if we need to start at root.
+			if include_root {
+				if let Some(dots_index) = range.find("..") {
+					revwalk.push(Oid::from_str(&range[dots_index + 2..])?)?;
+				}
+			} else {
+				revwalk.push_range(range)?;
+			}
 		} else {
 			revwalk.push_head()?;
 		}
@@ -488,7 +496,7 @@ mod test {
 	#[test]
 	fn get_latest_commit() -> Result<()> {
 		let repository = get_repository()?;
-		let commits = repository.commits(None, None, None)?;
+		let commits = repository.commits(None, false, None, None)?;
 		let last_commit =
 			AppCommit::from(&commits.first().expect("no commits found").clone());
 		assert_eq!(get_last_commit_hash()?, last_commit.id);

git-cliff/src/lib.rs

@@ -160,18 +160,20 @@ fn process_repository<'a>(
 
 	// Parse commits.
 	let mut commit_range = args.range.clone();
+	let mut include_root = false;
 	if args.unreleased {
 		if let Some(last_tag) = tags.last().map(|(k, _)| k) {
 			commit_range = Some(format!("{last_tag}..HEAD"));
 		}
 	} else if args.latest || args.current {
 		if tags.len() < 2 {
-			let commits = repository.commits(None, None, None)?;
+			let commits = repository.commits(None, false, None, None)?;
 			if let (Some(tag1), Some(tag2)) = (
 				commits.last().map(|c| c.id().to_string()),
 				tags.get_index(0).map(|(k, _)| k),
 			) {
 				commit_range = Some(format!("{tag1}..{tag2}"));
+				include_root = true;
 			}
 		} else {
 			let mut tag_index = tags.len() - 2;
@@ -208,6 +210,7 @@ fn process_repository<'a>(
 	}
 	let mut commits = repository.commits(
 		commit_range.as_deref(),
+		include_root,
 		args.include_path.clone(),
 		args.exclude_path.clone(),
 	)?;