feat(utils): add get_repo_name function with robust path handling and tests

Author: chengpeiquan

src/utils/get_repo_name.rs

@@ -0,0 +1,61 @@
+use std::collections::HashMap;
+use std::path::Path;
+
+/// Get repository name
+///
+/// # Parameters
+/// - `repo_dir`: repository path
+/// - `format`: mapping from directory name to repository name
+///
+/// # Returns
+/// - repository name (None if not found)
+pub fn get_repo_name(repo_dir: &str, format: &HashMap<String, String>) -> Option<String> {
+    let repo_dir = repo_dir.trim_end_matches(std::path::MAIN_SEPARATOR);
+    let path = Path::new(repo_dir);
+    if let Some(key_osstr) = path.file_name() {
+        let key = key_osstr.to_string_lossy();
+        format.get(key.as_ref()).cloned()
+    } else {
+        None
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::collections::HashMap;
+
+    #[test]
+    fn test_get_repo_name_found() {
+        let mut format = HashMap::new();
+        format.insert("my-repo".to_string(), "My Repository".to_string());
+        let repo_dir = "/Users/xxx/projects/my-repo";
+        let repo_name = get_repo_name(repo_dir, &format);
+        assert_eq!(repo_name, Some("My Repository".to_string()));
+    }
+
+    #[test]
+    fn test_get_repo_name_not_found() {
+        let format = HashMap::new();
+        let repo_dir = "/Users/xxx/projects/unknown-repo";
+        let repo_name = get_repo_name(repo_dir, &format);
+        assert_eq!(repo_name, None);
+    }
+
+    #[test]
+    fn test_get_repo_name_empty_path() {
+        let format = HashMap::new();
+        let repo_dir = "";
+        let repo_name = get_repo_name(repo_dir, &format);
+        assert_eq!(repo_name, None);
+    }
+
+    #[test]
+    fn test_get_repo_name_trailing_slash() {
+        let mut format = HashMap::new();
+        format.insert("my-repo".to_string(), "My Repository".to_string());
+        let repo_dir = "/Users/xxx/projects/my-repo/";
+        let repo_name = get_repo_name(repo_dir, &format);
+        assert_eq!(repo_name, Some("My Repository".to_string()));
+    }
+}

src/utils/mod.rs

@@ -1,2 +1,3 @@
 pub mod format_commit;
+pub mod get_repo_name;
 pub mod keypress;