Browse all Sublime Text commands provided by plugins

.python-version

3.8

browse.py

import sublime
import sublime_plugin

from sublime import QuickPanelItem

import inspect
import re
import sys

from sublime_plugin import application_command_classes
from sublime_plugin import window_command_classes
from sublime_plugin import text_command_classes


## ----------------------------------------------------------------------------


KIND_APPLICATION = (sublime.KIND_ID_FUNCTION, "A", "Application Command")
KIND_WINDOW = (sublime.KIND_ID_FUNCTION, "W", "Window Command")
KIND_TEXT = (sublime.KIND_ID_FUNCTION, "T", "Text Command")


cmd_types = {
    "app": {
        "name": "ApplicationCommand",
        "commands": application_command_classes,
        "kind": KIND_APPLICATION
    },
    "wnd": {
        "name": "WindowCommand",
        "commands": window_command_classes,
        "kind": KIND_WINDOW
    },
    "txt": {
        "name": "TextCommand",
        "commands": text_command_classes,
        "kind": KIND_TEXT
    }
}


## ----------------------------------------------------------------------------


def _navigate_to(view, symbol):
    """
    Navigate to the symbol in the given view.
    """
    view.window().run_command("goto_definition", {"symbol": symbol})


## ----------------------------------------------------------------------------


class BrowseCommandsCommand(sublime_plugin.ApplicationCommand):
    """
    Open a quick panel with a list of all commands known to the Sublime plugin
    host for the user to choose from. Picking a command opens the plugin file
    containing the command and navigates to the location where the command is
    defined.

    This command is exposed to both plugin hosts (by way of being in two
    packages) with the Python 3.3 plugin host triggering the command from the
    Python 3.8 host, so that we can gather all available commands.
    """
    arg_re = re.compile(r"^\(self(?:, )?(?:edit, |edit)?(.*)\)$")

    def legacy(self):
        return sys.version_info < (3, 8, 0)

    def name(self):
        return "browse_commands_33" if self.legacy() else "browse_commands"

    def run(self, cmd_dict=None):
        cmd_dict = cmd_dict or {}
        for cmd_type, cmd_info in cmd_types.items():
            self.get_commands(cmd_type, cmd_info["commands"], cmd_dict)

        if self.legacy():
            return sublime.run_command('browse_commands', {"cmd_dict": cmd_dict})

        items = []
        for command,details in cmd_dict.items():
            items.append(QuickPanelItem(details["name"],
                                        "<i>%s</i>" % details["args"],
                                        "%s.%s" % (details["pkg"] , details["mod"]),
                                        cmd_types[details["type"]]["kind"]))

        items.sort(key=lambda o: o.trigger)

        sublime.active_window().show_quick_panel(items,
                                                 lambda i: self.pick(i, items, cmd_dict))

    def pick(self, idx, items, cmd_dict):
        if idx == -1:
            return

        cmd = cmd_dict[items[idx].trigger]
        module = cmd["mod"].replace('.', '/')
        res = '${packages}/%s/%s.py' % (cmd["pkg"], module)

        sublime.active_window().run_command('open_file', {'file': res})
        view = sublime.active_window().active_view()
        if view.is_loading():
            view.settings().set("_jump_to_class", cmd["class"])
        else:
            _navigate_to(view, cmd["class"])

    def get_commands(self, cmd_type, commands, cmd_dict_out):
        """
        Given a list of commands of a particular type, decode each command in
        the list into a dictionary that describes it and store it into the
        output dictionary keyed by the package that defined it.

        The output dictionary gains keys for each package, where the values are
        dictionaries which contain keys that describe the commands of each of
        the supported typed.
        """
        for command in commands:
            decoded = self.decode_cmd(command, cmd_type)
            cmd_dict_out[decoded["name"]] = decoded

    def decode_cmd(self, command, cmd_type):
        """
        Given a class that implements a command of the provided type, return
        back a dictionary that contains the properties of the command for later
        display.
        """
        return {
            "type": cmd_type,
            "pkg": command.__module__.split(".")[0],
            "mod": ".".join(command.__module__.split(".")[1:]),
            "name": self.get_name(command),
            "args": self.get_args(command),
            "class": command.__name__
        }

    def get_args(self, cmd_class):
        """
        Return a string that represents the arguments to the run method of the
        Sublime command class provided, edited to remove the internal python
        arguments that are not needed to invoke the command from Sublime.
        """
        args = str(inspect.signature(cmd_class.run))
        return self.arg_re.sub(r"{ \1 }", args)

    def get_name(self, cmd_class):
        """
        Return the internal Sublime command name as Sublime would infer it from
        the name of the implementing class. This is taken from the name()
        method of the underlying Command class in sublime_plugin.py.
        """
        clsname = cmd_class.__name__
        name = clsname[0].lower()
        last_upper = False
        for c in clsname[1:]:
            if c.isupper() and not last_upper:
                name += '_'
                name += c.lower()
            else:
                name += c
            last_upper = c.isupper()
        if name.endswith("_command"):
            name = name[0:-8]
        return name


## ----------------------------------------------------------------------------


class CommandJumpListener(sublime_plugin.ViewEventListener):
    @classmethod
    def is_applicable(cls, settings):
        return settings.has("_jump_to_class")

    def on_load(self):
        symbol = self.view.settings().get("_jump_to_class")
        self.view.settings().erase("_jump_to_class")

        sublime.set_timeout(lambda: _navigate_to(self.view, symbol), 0)

CommandBrowser.sublime-commands

[
  { "caption": "Browse Command List", "command": "browse_commands_33" },
]

Screenshot.png

I seem to find a weird problem. Theoretically, if I want it to work for finding both py33/38 commands, I should have two copy of this plugin in different directories. One of them is executed in the py33 plugin_host and the other one is in py38, which needs a .python-version with 3.8 in it. So that console shows the following when ST starts up.

reloading plugin my_plugin_38.browse_all_commands
reloading python 3.3 plugin my_plugin_33.browse_all_commands

After doing that, I will need the following menu for each of them:

[
  {
    "caption": "Browse Command List (py33)",
    "command": "browse_commands_33",
  },
  {
    "caption": "Browse Command List (py38)",
    "command": "browse_commands",
  },
]

---

The above setup works well. Both commands are doing their jobs indeed.

The weird thing is that, say, I change something in the py38 file, such as the ApplicationCommand kind icon from A to X, it affects both browse_commands_33 and browse_commands commands from the command palette. Changing something in the py33 file seems useless.

If you want them to both be separate commands, you need to adjust these lines: https://gist.github.com/OdatNurd/fd6322a665c1730c7e16930b3a84999a#file-browse-py-L79-L80

In the 3.3 host, the command gathers a list of commands and then executes the version of the command in the 3.8 host with them so that it can produce one unified list with all commands regardless of what host they're in. So as presented above modifying how things display in the 3.3 version has no effect because that part of the command never gets executed.

Ah, it's that I didn't read the codes fully but just saw name() and legacy(). Thanks for explanation!

I did not, but to work fully it requires the package be installed once for each plugin host so there needs to be some extra stuff happening there to get things going.

FYI, PD needs that functionality as well for its command completions, which are partially sourced from the plugin environment (like this plugin does) and partially from a bundled file containing information about the built-in commands.

For anyone interested in using this plugin, there's now an official video that talks about it and tells you how to install it.

This is also available as a package on Package Control now: CommandsBrowser (github).