add versions func to output module commits

src/legendmeta/core.py

@@ -135,6 +135,32 @@ def checkout(self, git_ref: str) -> None:
             self.__repo__.git.checkout(git_ref)
             self.__repo__.git.submodule("update", "--init")
 
+    def _log_versions(self, modu, verbosity=0) -> None:
+        if modu.head.is_detached is False:
+            commit = modu.head.commit
+            msg = f'{next(modu.remote().urls).split("/")[-1]}'
+            msg += f'\nlocated at : {modu.working_dir}, \nlatest commit is: {commit.hexsha[:7]}, on: {commit.committed_datetime.strftime("%Y/%m/%d")}'
+            if verbosity >= 1:
+                msg += f"\n{commit.message}\n"
+            msg += "\n----------------\n"
+            log.info(msg)
+
+        else:
+            gitlog = modu.head.log()[0]
+            tstamp = datetime.fromtimestamp(gitlog.time[0])
+            msg = f'located at : {modu.working_dir}, \nlatest commit is: {gitlog.newhexsha[:7]}, on: {tstamp.strftime("%Y/%m/%d")}'
+            log.info(msg)
+
+    def versions(self, verbosity=0) -> None:
+        """
+        Logs commit and time of the latest commit for the legend-metadata repository and all its submodules.
+        """
+        self._log_versions(self.__repo__, verbosity)
+
+        for s in self.__repo__.submodules:
+            mod = s.module()
+            self._log_versions(mod, verbosity)
+
     def channelmap(
         self, on: str | datetime | None = None, system: str = "all"
     ) -> AttrsDict: