readded command help support

onionr/onionrcommands/banblocks.py

@@ -41,3 +41,5 @@ def ban_block():
             logger.warn('That block is already blacklisted', terminal=True)
     else:
         logger.error('Invalid block hash', terminal=True)
+
+ban_block.onionr_help = "<block hash>: deletes and blacklists a block"

onionr/onionrcommands/parser/__init__.py

@@ -33,11 +33,35 @@ def register_plugin_commands(cmd):
             return True
 
 def register():
+    PROGRAM_NAME = "onionr"
+    def get_help_message(cmd: str, default: str = 'No help available for this command'):
+        for i in arguments.get_arguments():
+            for alias in i:
+                try:
+                    return arguments.get_help(cmd)
+                except AttributeError:
+                    pass
+        return default
+
     try:
         cmd = sys.argv[1]
     except IndexError:
         cmd = ""
     
+    if cmd.replace('--', '').lower() == 'help':
+        try:
+            sys.argv[2]
+        except IndexError:
+            for i in arguments.get_arguments():
+                logger.info('%s <%s>: %s' % (PROGRAM_NAME, '/'.join(i), get_help_message(i[0])), terminal=True)
+        else:
+            try:
+                logger.info('%s %s: %s' % (PROGRAM_NAME, sys.argv[2], get_help_message(sys.argv[2])), terminal=True)
+            except KeyError:
+                logger.error('%s: command does not exist.' % [sys.argv[2]], terminal=True)
+                sys.exit(3)
+        return
+    
     try:
         arguments.get_func(cmd)()
     except onionrexceptions.NotFound:

onionr/onionrcommands/parser/arguments.py

@@ -28,12 +28,12 @@ import onionrexceptions
 from onionrutils import importnewblocks # func to import new blocks
 import onionrevents as events
 def get_arguments():
-    '''This is a function because we need to be able to dynamically modify them with plugins'''
+    """This is a function because we need to be able to dynamically modify them with plugins"""
     args = {
-        ('blacklist', 'blacklist-block', 'remove-block', 'removeblock'): banblocks.ban_block,
+        ('blacklist', 'blacklist-block', 'remove-block', 'removeblock', 'banblock', 'ban-block'): banblocks.ban_block,
         ('details', 'info'): onionrstatistics.show_details,
         ('stats', 'statistics'): onionrstatistics.show_stats,
-        ('version'): version.version,
+        ('version',): version.version,
         ('start', 'daemon'): daemonlaunch.start,
         ('stop', 'kill'): daemonlaunch.kill_daemon,
         ('add-address', 'addaddress', 'addadder'): keyadders.add_address,
@@ -51,10 +51,17 @@ def get_arguments():
     }
     return args
 
-def get_help():
-    return
+def get_help(arg: str) -> str:
+    """Returns the help info string from a given command"""
+    arguments = get_arguments()
+    # Iterate the command alias tuples
+    for argument in arguments:
+        # Return the help message if its found in a command alias tuple
+        if arg in argument: return arguments[argument].onionr_help
+    raise KeyError
 
 def get_func(argument):
+    """Returns the function for a given command argument"""
     argument = argument.lower()
     args = get_arguments()
 

onionr/onionrcommands/parser/recommend.py

@@ -3,7 +3,7 @@ from difflib import SequenceMatcher
 import logger
 from . import arguments
 
-def recommend():
+def recommend(print_default: bool = True):
     tried = sys.argv[1]
     args = arguments.get_arguments()
     print_message = 'Command not found:'
@@ -12,4 +12,4 @@ def recommend():
             if SequenceMatcher(None, tried, word).ratio() >= 0.75:
                 logger.warn('%s "%s", did you mean "%s"?' % (print_message, tried, word), terminal=True)
                 return
-    logger.error('%s "%s"' % (print_message, tried), terminal=True)
+    if print_default: logger.error('%s "%s"' % (print_message, tried), terminal=True)