feat(cli): show repo and current tag name in "cog log"

src/bin/cog.rs

@@ -223,10 +223,14 @@ fn main() -> Result<()> {
             LOG => {
                 let cocogitto = CocoGitto::get()?;
 
+                let repo_tag_name = match cocogitto.get_repo_tag_name() {
+                    Some(name) => name,
+                    None => "cog log".to_string(),
+                };
+
                 let mut output = Output::builder()
                     .with_pager_from_env("PAGER")
-                    // TODO: replace with "repo_name:latest_tag"?
-                    .with_file_name("cog log")
+                    .with_file_name(repo_tag_name)
                     .build()?;
 
                 let subcommand = matches.subcommand_matches(LOG).unwrap();

src/lib.rs

@@ -173,6 +173,20 @@ impl CocoGitto {
         self.repository.get_author()
     }
 
+    pub fn get_repo_tag_name(&self) -> Option<String> {
+        let mut repo_tag_name = String::new();
+
+        let repo_path = self.repository.get_repo_dir()?.iter().last()?;
+        repo_tag_name.push_str(repo_path.to_str()?);
+
+        if let Ok(latest_tag) = self.repository.get_latest_tag() {
+            repo_tag_name.push_str(":");
+            repo_tag_name.push_str(&latest_tag);
+        };
+
+        Some(repo_tag_name)
+    }
+
     pub fn check_and_edit(&self) -> Result<()> {
         let from = self.repository.get_first_commit()?;
         let head = self.repository.get_head_commit()?;