import asyncio import contextlib import os import shutil import sys from pathlib import Path from sys import path as syspath from typing import Tuple, Union, Iterable import discord from redbot.core import checks, commands, Config from redbot.core.bot import Red from redbot.core.data_manager import cog_data_path from redbot.core.i18n import Translator, cog_i18n from redbot.core.utils.chat_formatting import box, pagify, humanize_list, inline from redbot.core.utils.menus import start_adding_reactions from redbot.core.utils.predicates import MessagePredicate, ReactionPredicate from . import errors from .checks import do_install_agreement from .converters import InstalledCog from .installable import Installable from .log import log from .repo_manager import RepoManager, Repo _ = Translator("Downloader", __file__) @cog_i18n(_) class Downloader(commands.Cog): def __init__(self, bot: Red): super().__init__() self.bot = bot self.conf = Config.get_conf(self, identifier=998240343, force_registration=True) self.conf.register_global(installed=[]) self.already_agreed = False self.LIB_PATH = cog_data_path(self) / "lib" self.SHAREDLIB_PATH = self.LIB_PATH / "cog_shared" self.SHAREDLIB_INIT = self.SHAREDLIB_PATH / "__init__.py" self.LIB_PATH.mkdir(parents=True, exist_ok=True) self.SHAREDLIB_PATH.mkdir(parents=True, exist_ok=True) if not self.SHAREDLIB_INIT.exists(): with self.SHAREDLIB_INIT.open(mode="w", encoding="utf-8") as _: pass if str(self.LIB_PATH) not in syspath: syspath.insert(1, str(self.LIB_PATH)) self._repo_manager = RepoManager() async def initialize(self): await self._repo_manager.initialize() async def cog_install_path(self): """Get the current cog install path. Returns ------- pathlib.Path The default cog install path. """ return await self.bot.cog_mgr.install_path() async def installed_cogs(self) -> Tuple[Installable]: """Get info on installed cogs. Returns ------- `tuple` of `Installable` All installed cogs / shared lib directories. """ installed = await self.conf.installed() # noinspection PyTypeChecker return tuple(Installable.from_json(v, self._repo_manager) for v in installed) async def _add_to_installed(self, cog: Installable): """Mark a cog as installed. Parameters ---------- cog : Installable The cog to check off. """ installed = await self.conf.installed() cog_json = cog.to_json() if cog_json not in installed: installed.append(cog_json) await self.conf.installed.set(installed) async def _remove_from_installed(self, cog: Installable): """Remove a cog from the saved list of installed cogs. Parameters ---------- cog : Installable The cog to remove. """ installed = await self.conf.installed() cog_json = cog.to_json() if cog_json in installed: installed.remove(cog_json) await self.conf.installed.set(installed) async def _reinstall_cogs(self, cogs: Iterable[Installable]) -> Tuple[Installable]: """ Installs a list of cogs, used when updating. :param cogs: :return: Any cogs that failed to copy """ failed = [] for cog in cogs: if not await cog.copy_to(await self.cog_install_path()): failed.append(cog) # noinspection PyTypeChecker return tuple(failed) async def _reinstall_libraries(self, cogs: Iterable[Installable]) -> Tuple[Installable]: """ Reinstalls any shared libraries from the repos of cogs that were updated. :param cogs: :return: Any libraries that failed to copy """ repo_names = set(cog.repo_name for cog in cogs) unfiltered_repos = (self._repo_manager.get_repo(r) for r in repo_names) repos = filter(lambda r: r is not None, unfiltered_repos) failed = [] for repo in repos: if not await repo.install_libraries(target_dir=self.SHAREDLIB_PATH): failed.extend(repo.available_libraries) # noinspection PyTypeChecker return tuple(failed) async def _reinstall_requirements(self, cogs: Iterable[Installable]) -> bool: """ Reinstalls requirements for given cogs that have been updated. Returns a bool that indicates if all requirement installations were successful. :param cogs: :return: """ # Reduces requirements to a single list with no repeats requirements = set(r for c in cogs for r in c.requirements) repo_names = self._repo_manager.get_all_repo_names() repos = [(self._repo_manager.get_repo(rn), []) for rn in repo_names] # This for loop distributes the requirements across all repos # which will allow us to concurrently install requirements for i, req in enumerate(requirements): repo_index = i % len(repos) repos[repo_index][1].append(req) has_reqs = list(filter(lambda item: len(item[1]) > 0, repos)) ret = True for repo, reqs in has_reqs: for req in reqs: # noinspection PyTypeChecker ret = ret and await repo.install_raw_requirements([req], self.LIB_PATH) return ret @staticmethod async def _delete_cog(target: Path): """ Removes an (installed) cog. :param target: Path pointing to an existing file or directory :return: """ if not target.exists(): return if target.is_dir(): shutil.rmtree(str(target)) elif target.is_file(): os.remove(str(target)) @commands.command() @checks.is_owner() async def pipinstall(self, ctx, *deps: str): """ Installs a group of dependencies using pip. """ repo = Repo("", "", "", Path.cwd(), loop=ctx.bot.loop) success = await repo.install_raw_requirements(deps, self.LIB_PATH) if success: await ctx.send(_("Libraries installed.")) else: await ctx.send( _( "Some libraries failed to install. Please check" " your logs for a complete list." ) ) @commands.group() @checks.is_owner() async def repo(self, ctx): """ Command group for managing Downloader repos. """ pass @repo.command(name="add") async def _repo_add(self, ctx, name: str, repo_url: str, branch: str = None): """ Add a new repo to Downloader. Name can only contain characters A-z, numbers and underscore Branch will default to master if not specified """ agreed = await do_install_agreement(ctx) if not agreed: return try: # noinspection PyTypeChecker repo = await self._repo_manager.add_repo(name=name, url=repo_url, branch=branch) except errors.ExistingGitRepo: await ctx.send(_("That git repo has already been added under another name.")) except errors.CloningError as err: await ctx.send(_("Something went wrong during the cloning process.")) log.exception( "Something went wrong whilst cloning %s (to revision: %s)", repo_url, branch, exc_info=err, ) else: await ctx.send(_("Repo `{name}` successfully added.").format(name=name)) if repo.install_msg is not None: await ctx.send(repo.install_msg.replace("[p]", ctx.prefix)) @repo.command(name="delete") async def _repo_del(self, ctx, repo_name: Repo): """ Removes a repo from Downloader and its' files. """ await self._repo_manager.delete_repo(repo_name.name) await ctx.send( _("The repo `{name}` has been deleted successfully.").format(name=repo_name.name) ) @repo.command(name="list") async def _repo_list(self, ctx): """ Lists all installed repos. """ repos = self._repo_manager.get_all_repo_names() repos = sorted(repos, key=str.lower) joined = _("Installed Repos:\n\n") for repo_name in repos: repo = self._repo_manager.get_repo(repo_name) joined += "+ {}: {}\n".format(repo.name, repo.short or "") for page in pagify(joined, ["\n"], shorten_by=16): await ctx.send(box(page.lstrip(" "), lang="diff")) @repo.command(name="info") async def _repo_info(self, ctx, repo_name: Repo): """ Lists information about a single repo """ if repo_name is None: await ctx.send(_("There is no repo `{repo_name}`").format(repo_name=repo_name.name)) return msg = _("Information on {repo_name}:\n{description}").format( repo_name=repo_name.name, description=repo_name.description or "" ) await ctx.send(box(msg)) @commands.group() @checks.is_owner() async def cog(self, ctx): """ Command group for managing installable Cogs. """ pass @cog.command(name="install") async def _cog_install(self, ctx, repo_name: Repo, cog_name: str): """ Installs a cog from the given repo. """ cog = discord.utils.get(repo_name.available_cogs, name=cog_name) # type: Installable if cog is None: await ctx.send( _( "Error, there is no cog by the name of `{cog_name}` in the `{repo_name}` repo." ).format(cog_name=cog_name, repo_name=repo_name.name) ) return elif cog.min_python_version > sys.version_info: await ctx.send( _("This cog requires at least python version {}, aborting install.").format( ".".join([str(n) for n in cog.min_python_version]) ) ) return if not await repo_name.install_requirements(cog, self.LIB_PATH): await ctx.send( _( "Failed to install the required libraries for `{cog_name}`: `{libraries}`" ).format(cog_name=cog.name, libraries=cog.requirements) ) return await repo_name.install_cog(cog, await self.cog_install_path()) await self._add_to_installed(cog) await repo_name.install_libraries(self.SHAREDLIB_PATH) await ctx.send(_("`{cog_name}` cog successfully installed.").format(cog_name=cog_name)) if cog.install_msg is not None: await ctx.send(cog.install_msg.replace("[p]", ctx.prefix)) @cog.command(name="uninstall") async def _cog_uninstall(self, ctx, cog_name: InstalledCog): """ Allows you to uninstall cogs that were previously installed through Downloader. """ # noinspection PyUnresolvedReferences,PyProtectedMember real_name = cog_name.name poss_installed_path = (await self.cog_install_path()) / real_name if poss_installed_path.exists(): await self._delete_cog(poss_installed_path) # noinspection PyTypeChecker await self._remove_from_installed(cog_name) await ctx.send( _("`{real_name}` was successfully removed.").format(real_name=real_name) ) else: await ctx.send( _( "That cog was installed but can no longer" " be located. You may need to remove it's" " files manually if it is still usable." ) ) @cog.command(name="update") async def _cog_update(self, ctx, cog_name: InstalledCog = None): """ Updates all cogs or one of your choosing. """ installed_cogs = set(await self.installed_cogs()) async with ctx.typing(): if cog_name is None: updated = await self._repo_manager.update_all_repos() else: try: updated = await self._repo_manager.update_repo(cog_name.repo_name) except KeyError: # Thrown if the repo no longer exists updated = {} updated_cogs = set(cog for repo in updated for cog in repo.available_cogs) installed_and_updated = updated_cogs & installed_cogs if installed_and_updated: await self._reinstall_requirements(installed_and_updated) await self._reinstall_cogs(installed_and_updated) await self._reinstall_libraries(installed_and_updated) message = _("Cog update completed successfully.") cognames = [c.name for c in installed_and_updated] message += _("\nUpdated: ") + humanize_list(tuple(map(inline, cognames))) else: await ctx.send(_("All installed cogs are already up to date.")) return await ctx.send(message) message = _("Would you like to reload the updated cogs?") can_react = ctx.channel.permissions_for(ctx.me).add_reactions if not can_react: message += " (y/n)" query: discord.Message = await ctx.send(message) if can_react: # noinspection PyAsyncCall start_adding_reactions(query, ReactionPredicate.YES_OR_NO_EMOJIS, ctx.bot.loop) pred = ReactionPredicate.yes_or_no(query, ctx.author) event = "reaction_add" else: pred = MessagePredicate.yes_or_no(ctx) event = "message" try: await ctx.bot.wait_for(event, check=pred, timeout=30) except asyncio.TimeoutError: await query.delete() return if pred.result is True: if can_react: with contextlib.suppress(discord.Forbidden): await query.clear_reactions() await ctx.invoke(ctx.bot.get_cog("Core").reload, *cognames) else: if can_react: await query.delete() else: await ctx.send(_("OK then.")) @cog.command(name="list") async def _cog_list(self, ctx, repo_name: Repo): """ Lists all available cogs from a single repo. """ installed = await self.installed_cogs() installed_str = "" if installed: installed_str = _("Installed Cogs:\n") + "\n".join( [ "- {}{}".format(i.name, ": {}".format(i.short) if i.short else "") for i in installed if i.repo_name == repo_name.name ] ) cogs = repo_name.available_cogs cogs = _("Available Cogs:\n") + "\n".join( [ "+ {}: {}".format(c.name, c.short or "") for c in cogs if not (c.hidden or c in installed) ] ) cogs = cogs + "\n\n" + installed_str for page in pagify(cogs, ["\n"], shorten_by=16): await ctx.send(box(page.lstrip(" "), lang="diff")) @cog.command(name="info") async def _cog_info(self, ctx, repo_name: Repo, cog_name: str): """ Lists information about a single cog. """ cog = discord.utils.get(repo_name.available_cogs, name=cog_name) if cog is None: await ctx.send( _("There is no cog `{cog_name}` in the repo `{repo_name}`").format( cog_name=cog_name, repo_name=repo_name.name ) ) return msg = _( "Information on {cog_name}:\n{description}\n\nRequirements: {requirements}" ).format( cog_name=cog.name, description=cog.description or "", requirements=", ".join(cog.requirements) or "None", ) await ctx.send(box(msg)) async def is_installed( self, cog_name: str ) -> Union[Tuple[bool, Installable], Tuple[bool, None]]: """Check to see if a cog has been installed through Downloader. Parameters ---------- cog_name : str The name of the cog to check for. Returns ------- `tuple` of (`bool`, `Installable`) :code:`(True, Installable)` if the cog is installed, else :code:`(False, None)`. """ for installable in await self.installed_cogs(): if installable.name == cog_name: return True, installable return False, None def format_findcog_info( self, command_name: str, cog_installable: Union[Installable, object] = None ) -> str: """Format a cog's info for output to discord. Parameters ---------- command_name : str Name of the command which belongs to the cog. cog_installable : `Installable` or `object` Can be an `Installable` instance or a Cog instance. Returns ------- str A formatted message for the user. """ if isinstance(cog_installable, Installable): made_by = ", ".join(cog_installable.author) or _("Missing from info.json") repo = self._repo_manager.get_repo(cog_installable.repo_name) repo_url = repo.url cog_name = cog_installable.name else: made_by = "26 & co." repo_url = "https://github.com/Cog-Creators/Red-DiscordBot" cog_name = cog_installable.__class__.__name__ msg = _("Command: {command}\nMade by: {author}\nRepo: {repo}\nCog name: {cog}") return msg.format(command=command_name, author=made_by, repo=repo_url, cog=cog_name) def cog_name_from_instance(self, instance: object) -> str: """Determines the cog name that Downloader knows from the cog instance. Probably. Parameters ---------- instance : object The cog instance. Returns ------- str The name of the cog according to Downloader.. """ splitted = instance.__module__.split(".") return splitted[-2] @commands.command() async def findcog(self, ctx: commands.Context, command_name: str): """ Figures out which cog a command comes from. Only works with loaded cogs. """ command = ctx.bot.all_commands.get(command_name) if command is None: await ctx.send(_("That command doesn't seem to exist.")) return # Check if in installed cogs cog_name = self.cog_name_from_instance(command.instance) installed, cog_installable = await self.is_installed(cog_name) if installed: msg = self.format_findcog_info(command_name, cog_installable) else: # Assume it's in a base cog msg = self.format_findcog_info(command_name, command.instance) await ctx.send(box(msg))