F1 shows man page for current command

pgcli/key_bindings.py

@@ -1,4 +1,5 @@
 import logging
+import os
 from prompt_toolkit.enums import EditingMode
 from prompt_toolkit.key_binding import KeyBindings
 from prompt_toolkit.filters import (
@@ -20,6 +21,14 @@ def pgcli_bindings(pgcli):
 
     tab_insert_text = " " * 4
 
+    @kb.add("f1")
+    def _(event):
+        """Show man page for current command."""
+        _logger.debug("Detected <F1> key.")
+
+        t = event.app.current_buffer.text
+        os.system(f"man {t}")
+
     @kb.add("f2")
     def _(event):
         """Enable/Disable SmartCompletion Mode."""