Merge branch 'refactor_command_completion' of https://github.com/rcorre/qutebrowser into rcorre-refactor_command_completion

qutebrowser/commands/command.py

@@ -75,7 +75,6 @@ class Command:
         deprecated: False, or a string to describe why a command is deprecated.
         desc: The description of the command.
         handler: The handler function to call.
-        completion: Completions to use for arguments, as a list of strings.
         debug: Whether this is a debugging command (only shown with --debug).
         parser: The ArgumentParser to use to parse this command.
         flags_with_args: A list of flags which take an argument.
@@ -148,13 +147,7 @@ class Command:
         self._qute_args = getattr(self.handler, 'qute_args', {})
         self.handler.qute_args = None
 
-        args = self._inspect_func()
-
-        self.completion = []
-        for arg in args:
-            arg_completion = self.get_arg_info(arg).completion
-            if arg_completion is not None:
-                self.completion.append(arg_completion)
+        self._inspect_func()
 
     def _check_prerequisites(self, win_id):
         """Check if the command is permitted to run currently.
@@ -208,6 +201,11 @@ class Command:
         """Get an ArgInfo tuple for the given inspect.Parameter."""
         return self._qute_args.get(param.name, ArgInfo())
 
+    def get_pos_arg_info(self, pos):
+        """Get an ArgInfo tuple for the given positional parameter."""
+        name = self.pos_args[pos][0]
+        return self._qute_args.get(name, ArgInfo())
+
     def _inspect_special_param(self, param):
         """Check if the given parameter is a special one.
 

qutebrowser/completion/completer.py

@@ -204,25 +204,18 @@ class Completer(QObject):
             return sortfilter.CompletionFilterModel(source=model, parent=self)
         # delegate completion to command
         try:
-            completions = cmdutils.cmd_dict[parts[0]].completion
+            cmd = cmdutils.cmd_dict[parts[0]]
         except KeyError:
             # entering an unknown command
             return None
-        if completions is None:
-            # command without any available completions
-            return None
-        dbg_completions = [c.name for c in completions]
         try:
             idx = cursor_part - 1
-            completion = completions[idx]
+            completion = cmd.get_pos_arg_info(idx).completion
         except IndexError:
-            # More arguments than completions
-            log.completion.debug("completions: {}".format(
-                ', '.join(dbg_completions)))
+            # user provided more positional arguments than the command takes
+            return None
+        if completion is None:
             return None
-        dbg_completions[idx] = '*' + dbg_completions[idx] + '*'
-        log.completion.debug("completions: {}".format(
-            ', '.join(dbg_completions)))
         model = self._get_completion_model(completion, parts, cursor_part)
         return model
 

qutebrowser/completion/models/instances.py

@@ -27,8 +27,7 @@ Module attributes:
 
 import functools
 
-from qutebrowser.completion.models import (miscmodels, urlmodel, configmodel,
-                                           base)
+from qutebrowser.completion.models import miscmodels, urlmodel, configmodel
 from qutebrowser.utils import objreg, usertypes, log, debug
 from qutebrowser.config import configdata
 
@@ -115,13 +114,6 @@ def init_session_completion():
     _instances[usertypes.Completion.sessions] = model
 
 
-def _init_empty_completion():
-    """Initialize empty completion model."""
-    log.completion.debug("Initializing empty completion.")
-    if usertypes.Completion.empty not in _instances:
-        _instances[usertypes.Completion.empty] = base.BaseCompletionModel()
-
-
 INITIALIZERS = {
     usertypes.Completion.command: _init_command_completion,
     usertypes.Completion.helptopic: _init_helptopic_completion,
@@ -133,7 +125,6 @@ INITIALIZERS = {
     usertypes.Completion.quickmark_by_name: init_quickmark_completions,
     usertypes.Completion.bookmark_by_url: init_bookmark_completions,
     usertypes.Completion.sessions: init_session_completion,
-    usertypes.Completion.empty: _init_empty_completion,
 }
 
 

qutebrowser/config/parsers/keyconf.py

@@ -152,7 +152,6 @@ class KeyConfigParser(QObject):
 
     @cmdutils.register(instance='key-config', maxsplit=1, no_cmd_split=True)
     @cmdutils.argument('win_id', win_id=True)
-    @cmdutils.argument('key', completion=usertypes.Completion.empty)
     @cmdutils.argument('command', completion=usertypes.Completion.command)
     def bind(self, key, win_id, command=None, *, mode='normal', force=False):
         """Bind a key to a command.

qutebrowser/utils/usertypes.py

@@ -238,8 +238,7 @@ KeyMode = enum('KeyMode', ['normal', 'hint', 'command', 'yesno', 'prompt',
 # Available command completions
 Completion = enum('Completion', ['command', 'section', 'option', 'value',
                                  'helptopic', 'quickmark_by_name',
-                                 'bookmark_by_url', 'url', 'tab', 'sessions',
-                                 'empty'])
+                                 'bookmark_by_url', 'url', 'tab', 'sessions'])
 
 
 # Exit statuses for errors. Needs to be an int for sys.exit.

tests/unit/commands/test_cmdutils.py

@@ -291,6 +291,21 @@ class TestRegister:
         else:
             assert cmd._get_call_args(win_id=0) == ([expected], {})
 
+    def test_pos_arg_info(self):
+        @cmdutils.register()
+        @cmdutils.argument('foo', choices=('a', 'b'))
+        @cmdutils.argument('bar', choices=('x', 'y'))
+        @cmdutils.argument('opt')
+        def fun(foo, bar, opt=False):
+            """Blah."""
+            pass
+
+        cmd = cmdutils.cmd_dict['fun']
+        assert cmd.get_pos_arg_info(0) == command.ArgInfo(choices=('a', 'b'))
+        assert cmd.get_pos_arg_info(1) == command.ArgInfo(choices=('x', 'y'))
+        with pytest.raises(IndexError):
+            cmd.get_pos_arg_info(2)
+
 
 class TestArgument:
 

tests/unit/completion/test_completer.py

@@ -27,6 +27,7 @@ from PyQt5.QtGui import QStandardItemModel
 
 from qutebrowser.completion import completer
 from qutebrowser.utils import usertypes
+from qutebrowser.commands import command, cmdutils
 
 
 class FakeCompletionModel(QStandardItemModel):
@@ -91,24 +92,48 @@ def instances(monkeypatch):
 @pytest.fixture(autouse=True)
 def cmdutils_patch(monkeypatch, stubs):
     """Patch the cmdutils module to provide fake commands."""
+    @cmdutils.argument('section_', completion=usertypes.Completion.section)
+    @cmdutils.argument('option', completion=usertypes.Completion.option)
+    @cmdutils.argument('value', completion=usertypes.Completion.value)
+    def set_command(section_=None, option=None, value=None):
+        """docstring!"""
+        pass
+
+    @cmdutils.argument('topic', completion=usertypes.Completion.helptopic)
+    def show_help(tab=False, bg=False, window=False, topic=None):
+        """docstring!"""
+        pass
+
+    @cmdutils.argument('url', completion=usertypes.Completion.url)
+    @cmdutils.argument('count', count=True)
+    def openurl(url=None, implicit=False, bg=False, tab=False, window=False,
+                count=None):
+        """docstring!"""
+        pass
+
+    @cmdutils.argument('win_id', win_id=True)
+    @cmdutils.argument('command', completion=usertypes.Completion.command)
+    def bind(key, win_id, command=None, *, mode='normal', force=False):
+        """docstring!"""
+        # pylint: disable=unused-variable
+        pass
+
+    def tab_detach():
+        """docstring!"""
+        pass
+
     cmds = {
-        'set': [usertypes.Completion.section, usertypes.Completion.option,
-                usertypes.Completion.value],
-        'help': [usertypes.Completion.helptopic],
-        'quickmark-load': [usertypes.Completion.quickmark_by_name],
-        'bookmark-load': [usertypes.Completion.bookmark_by_url],
-        'open': [usertypes.Completion.url],
-        'buffer': [usertypes.Completion.tab],
-        'session-load': [usertypes.Completion.sessions],
-        'bind': [usertypes.Completion.empty, usertypes.Completion.command],
-        'tab-detach': None,
+        'set': set_command,
+        'help': show_help,
+        'open': openurl,
+        'bind': bind,
+        'tab-detach': tab_detach,
     }
     cmd_utils = stubs.FakeCmdUtils({
-        name: stubs.FakeCommand(completion=compl)
-        for name, compl in cmds.items()
+        name: command.Command(name=name, handler=fn)
+        for name, fn in cmds.items()
     })
-    monkeypatch.setattr('qutebrowser.completion.completer.cmdutils',
-                        cmd_utils)
+    monkeypatch.setattr('qutebrowser.completion.completer.cmdutils', cmd_utils)
 
 
 def _set_cmd_prompt(cmd, txt):
@@ -143,21 +168,17 @@ def _validate_cmd_prompt(cmd, txt):
     (':set general ignore-case |', usertypes.Completion.value),
     (':set general huh |', None),
     (':help |', usertypes.Completion.helptopic),
-    (':quickmark-load |', usertypes.Completion.quickmark_by_name),
-    (':bookmark-load |', usertypes.Completion.bookmark_by_url),
+    (':help     |', usertypes.Completion.helptopic),
     (':open |', usertypes.Completion.url),
-    (':buffer |', usertypes.Completion.tab),
-    (':session-load |', usertypes.Completion.sessions),
-    (':bind |', usertypes.Completion.empty),
+    (':bind |', None),
     (':bind <c-x> |', usertypes.Completion.command),
     (':bind <c-x> foo|', usertypes.Completion.command),
-    (':bind <c-x>| foo', usertypes.Completion.empty),
+    (':bind <c-x>| foo', None),
     (':set| general ', usertypes.Completion.command),
     (':|set general ', usertypes.Completion.command),
     (':set gene|ral ignore-case', usertypes.Completion.section),
     (':|', usertypes.Completion.command),
     (':   |', usertypes.Completion.command),
-    (':bookmark-load      |', usertypes.Completion.bookmark_by_url),
     ('/|', None),
     (':open -t|', None),
     (':open --tab|', None),