add version reporting for API

Author: oscarlevin

docs/api.md

@@ -22,3 +22,7 @@ The `logger.add_log_stream_handler()` function simply creates a stream-handler t
 ```python
 logger.add_log_file_handler(path_to_log_directory)
 ```
+
+## Report pretext version
+
+If you want to include the current running version of PreTeXt in your app, you can call `utils.report_version` to get a info-level log report of the version, or import `VERSION` from the base of the project and use that in your own log message.

pretext/utils.py

@@ -982,6 +982,13 @@ def check_for_updates() -> None:
         f.write(str(datetime.date.today()))
 
 
+def report_version() -> None:
+    """
+    Report the current version of pretext.
+    """
+    log.info(f"PreTeXt CLI version: {VERSION}")
+
+
 def is_pretext_proc(proc: psutil.Process) -> bool:
     if proc.name() == "pretext":
         return False