# -*- coding: utf-8 -*- # Commands to interface with the bot's git repository; use '!git help' for sub-command list. import shlex, subprocess, re from config.irc import * from irc.base_command import BaseCommand class Git(BaseCommand): def get_hooks(self): return ["msg"] def get_help(self, command): return "Commands to interface with the bot's git repository; use '!git help' for sub-command list." def check(self, data): if data.is_command and data.command == "git": return True return False def process(self, data): self.data = data if data.host not in OWNERS: self.connection.reply(data, "you must be a bot owner to use this command.") return if not data.args: self.connection.reply(data, "no arguments provided. Maybe you wanted '!git help'?") return if data.args[0] == "help": self.do_help() elif data.args[0] == "branch": self.do_branch() elif data.args[0] == "branches": self.do_branches() elif data.args[0] == "checkout": self.do_checkout() elif data.args[0] == "delete": self.do_delete() elif data.args[0] == "pull": self.do_pull() elif data.args[0] == "status": self.do_status() else: # they asked us to do something we don't know self.connection.reply(data, "unknown argument: \x0303%s\x0301." % data.args[0]) def exec_shell(self, command): """execute a shell command and get the output""" command = shlex.split(command) result = subprocess.check_output(command, stderr=subprocess.STDOUT) if result: result = result[:-1] # strip newline return result def do_help(self): """display all commands""" help_dict = { "branch": "get current branch", "branches": "get all branches", "checkout": "switch branches", "delete": "delete an old branch", "pull": "update everything from the remote server", "status": "check if we are up-to-date", } keys = help_dict.keys() keys.sort() help = "" for key in keys: help += "\x0303%s\x0301 (%s), " % (key, help_dict[key]) help = help[:-2] # trim last comma and space self.connection.reply(self.data, "sub-commands are: %s." % help) def do_branch(self): """get our current branch""" branch = self.exec_shell("git name-rev --name-only HEAD") self.connection.reply(self.data, "currently on branch \x0302%s\x0301." % branch) def do_branches(self): """get list of branches""" branches = self.exec_shell("git branch") branches = branches.replace('\n* ', ', ') # cleanup extraneous characters branches = branches.replace('* ', ' ') branches = branches.replace('\n ', ', ') branches = branches.strip() self.connection.reply(self.data, "branches: \x0302%s\x0301." % branches) def do_checkout(self): """switch branches""" try: branch = self.data.args[1] except IndexError: # no branch name provided self.connection.reply(self.data, "switch to which branch?") return try: result = self.exec_shell("git checkout %s" % branch) if "Already on" in result: self.connection.reply(self.data, "already on \x0302%s\x0301!" % branch) else: current_branch = self.exec_shell("git name-rev --name-only HEAD") self.connection.reply(self.data, "switched from branch \x0302%s\x0301 to \x0302%s\x0301." % (current_branch, branch)) except subprocess.CalledProcessError: # git couldn't switch branches self.connection.reply(self.data, "branch \x0302%s\x0301 doesn't exist!" % branch) def do_delete(self): """delete a branch, while making sure that we are not on it""" try: delete_branch = self.data.args[1] except IndexError: # no branch name provided self.connection.reply(self.data, "delete which branch?") return current_branch = self.exec_shell("git name-rev --name-only HEAD") if current_branch == delete_branch: self.connection.reply(self.data, "you're currently on this branch; please checkout to a different branch before deleting.") return try: self.exec_shell("git branch -d %s" % delete_branch) self.connection.reply(self.data, "branch \x0302%s\x0301 has been deleted locally." % delete_branch) except subprocess.CalledProcessError: # git couldn't delete self.connection.reply(self.data, "branch \x0302%s\x0301 doesn't exist!" % delete_branch) def do_pull(self): """pull from remote repository""" branch = self.exec_shell("git name-rev --name-only HEAD") self.connection.reply(self.data, "pulling from remote (currently on \x0302%s\x0301)..." % branch) result = self.exec_shell("git pull") if "Already up-to-date." in result: self.connection.reply(self.data, "done; no new changes.") else: changes = re.findall("\s*((.*?)\sfile(.*?)tions?\(-\))", result)[0][0] # find the changes try: remote = self.exec_shell("git config --get branch.%s.remote" % branch) url = self.exec_shell("git config --get remote.%s.url" % remote) self.connection.reply(self.data, "done; %s. [from %s]" % (changes, url)) except subprocess.CalledProcessError: # something in .git/config is not specified correctly, so we cannot get the remote's url self.connection.reply(self.data, "done; %s." % changes) def do_status(self): """check whether we have anything to pull""" last = self.exec_shell("git log -n 1 --pretty=\"%ar\"") result = self.exec_shell("git fetch --dry-run") if not result: # nothing was fetched, so remote and local are equal self.connection.reply(self.data, "last commit was %s. Local copy is \x02up-to-date\x0F with remote." % last) else: self.connection.reply(self.data, "last local commit was %s. Remote is \x02ahead\x0F of local copy." % last)