diff options
| -rw-r--r-- | plugins/python/_hexchat.py | 91 | ||||
| -rw-r--r-- | plugins/python/python.py | 99 | ||||
| -rw-r--r-- | plugins/python/python_style_guide.md | 26 |
3 files changed, 143 insertions, 73 deletions
diff --git a/plugins/python/_hexchat.py b/plugins/python/_hexchat.py index 50ccfb83..ebee5657 100644 --- a/plugins/python/_hexchat.py +++ b/plugins/python/_hexchat.py @@ -1,6 +1,7 @@ -from contextlib import contextmanager import inspect import sys +from contextlib import contextmanager + from _hexchat_embedded import ffi, lib __all__ = [ @@ -40,13 +41,15 @@ def __get_current_plugin(): while '__plugin' not in frame.f_globals: frame = frame.f_back assert frame is not None + return frame.f_globals['__plugin'] # Keeping API compat -if sys.version_info[0] is 2: +if sys.version_info[0] == 2: def __decode(string): return string + else: def __decode(string): return string.decode() @@ -64,16 +67,18 @@ def emit_print(event_name, *args, **kwargs): arg = args[i].encode() if len(args) > i else b'' cstring = ffi.new('char[]', arg) cargs.append(cstring) - if time is 0: + + if time == 0: return lib.hexchat_emit_print(lib.ph, event_name.encode(), *cargs) - else: - attrs = lib.hexchat_event_attrs_create(lib.ph) - attrs.server_time_utc = time - ret = lib.hexchat_emit_print(lib.ph, attrs, event_name.encode(), *cargs) - lib.hexchat_event_attrs_free(lib.ph, attrs) - return ret + + attrs = lib.hexchat_event_attrs_create(lib.ph) + attrs.server_time_utc = time + ret = lib.hexchat_emit_print(lib.ph, attrs, event_name.encode(), *cargs) + lib.hexchat_event_attrs_free(lib.ph, attrs) + return ret +# TODO: this shadows itself. command should be changed to cmd def command(command): lib.hexchat_command(lib.ph, command.encode()) @@ -97,21 +102,24 @@ def get_info(name): # Surely there is a less dumb way? ptr = repr(ret).rsplit(' ', 1)[1][:-1] return ptr + return __decode(ffi.string(ret)) def get_prefs(name): string_out = ffi.new('char**') int_out = ffi.new('int*') - type = lib.hexchat_get_prefs(lib.ph, name.encode(), string_out, int_out) - if type is 0: + _type = lib.hexchat_get_prefs(lib.ph, name.encode(), string_out, int_out) + if _type == 0: return None - elif type is 1: + + if _type == 1: return __decode(ffi.string(string_out[0])) - elif type is 2 or type is 3: # XXX: 3 should be a bool, but keeps API + + if _type in (2, 3): # XXX: 3 should be a bool, but keeps API return int_out[0] - else: - assert False + + raise AssertionError('Out of bounds pref storage') def __cstrarray_to_list(arr): @@ -120,6 +128,7 @@ def __cstrarray_to_list(arr): while arr[i] != ffi.NULL: ret.append(ffi.string(arr[i])) i += 1 + return ret @@ -127,8 +136,7 @@ __FIELD_CACHE = {} def __get_fields(name): - return __FIELD_CACHE.setdefault(name, - __cstrarray_to_list(lib.hexchat_list_fields(lib.ph, name))) + return __FIELD_CACHE.setdefault(name, __cstrarray_to_list(lib.hexchat_list_fields(lib.ph, name))) __FIELD_PROPERTY_CACHE = {} @@ -154,6 +162,7 @@ class ListItem: if sys.version_info[0] == 2: def get_getter(name): return ord(name[0]) + else: def get_getter(name): return name[0] @@ -179,6 +188,7 @@ def get_list(name): string = lib.hexchat_list_str(lib.ph, list_, field) if string != ffi.NULL: return __decode(ffi.string(string)) + return '' def ptr_getter(field): @@ -186,6 +196,7 @@ def get_list(name): ptr = lib.hexchat_list_str(lib.ph, list_, field) ctx = ffi.cast('hexchat_context*', ptr) return Context(ctx) + return None getters = { @@ -195,25 +206,27 @@ def get_list(name): ord('p'): ptr_getter, } - while lib.hexchat_list_next(lib.ph, list_) is 1: + while lib.hexchat_list_next(lib.ph, list_) == 1: item = ListItem(orig_name) - for field in fields: - getter = getters.get(get_getter(field)) + for _field in fields: + getter = getters.get(get_getter(_field)) if getter is not None: - field_name = field[1:] + field_name = _field[1:] setattr(item, __cached_decoded_str(field_name), getter(field_name)) + ret.append(item) lib.hexchat_list_free(lib.ph, list_) return ret +# TODO: 'command' here shadows command above, and should be renamed to cmd def hook_command(command, callback, userdata=None, priority=PRI_NORM, help=None): plugin = __get_current_plugin() hook = plugin.add_hook(callback, userdata) handle = lib.hexchat_hook_command(lib.ph, command.encode(), priority, lib._on_command_hook, - help.encode() if help is not None else ffi.NULL, - hook.handle) + help.encode() if help is not None else ffi.NULL, hook.handle) + hook.hexchat_hook = handle return id(hook) @@ -221,8 +234,7 @@ def hook_command(command, callback, userdata=None, priority=PRI_NORM, help=None) def hook_print(name, callback, userdata=None, priority=PRI_NORM): plugin = __get_current_plugin() hook = plugin.add_hook(callback, userdata) - handle = lib.hexchat_hook_print(lib.ph, name.encode(), priority, lib._on_print_hook, - hook.handle) + handle = lib.hexchat_hook_print(lib.ph, name.encode(), priority, lib._on_print_hook, hook.handle) hook.hexchat_hook = handle return id(hook) @@ -230,8 +242,7 @@ def hook_print(name, callback, userdata=None, priority=PRI_NORM): def hook_print_attrs(name, callback, userdata=None, priority=PRI_NORM): plugin = __get_current_plugin() hook = plugin.add_hook(callback, userdata) - handle = lib.hexchat_hook_print_attrs(lib.ph, name.encode(), priority, lib._on_print_attrs_hook, - hook.handle) + handle = lib.hexchat_hook_print_attrs(lib.ph, name.encode(), priority, lib._on_print_attrs_hook, hook.handle) hook.hexchat_hook = handle return id(hook) @@ -239,8 +250,7 @@ def hook_print_attrs(name, callback, userdata=None, priority=PRI_NORM): def hook_server(name, callback, userdata=None, priority=PRI_NORM): plugin = __get_current_plugin() hook = plugin.add_hook(callback, userdata) - handle = lib.hexchat_hook_server(lib.ph, name.encode(), priority, lib._on_server_hook, - hook.handle) + handle = lib.hexchat_hook_server(lib.ph, name.encode(), priority, lib._on_server_hook, hook.handle) hook.hexchat_hook = handle return id(hook) @@ -248,8 +258,7 @@ def hook_server(name, callback, userdata=None, priority=PRI_NORM): def hook_server_attrs(name, callback, userdata=None, priority=PRI_NORM): plugin = __get_current_plugin() hook = plugin.add_hook(callback, userdata) - handle = lib.hexchat_hook_server_attrs(lib.ph, name.encode(), priority, lib._on_server_attrs_hook, - hook.handle) + handle = lib.hexchat_hook_server_attrs(lib.ph, name.encode(), priority, lib._on_server_attrs_hook, hook.handle) hook.hexchat_hook = handle return id(hook) @@ -276,17 +285,18 @@ def unhook(handle): def set_pluginpref(name, value): if isinstance(value, str): return bool(lib.hexchat_pluginpref_set_str(lib.ph, name.encode(), value.encode())) - elif isinstance(value, int): + + if isinstance(value, int): return bool(lib.hexchat_pluginpref_set_int(lib.ph, name.encode(), value)) - else: - # XXX: This should probably raise but this keeps API - return False + + # XXX: This should probably raise but this keeps API + return False def get_pluginpref(name): name = name.encode() string_out = ffi.new('char[512]') - if lib.hexchat_pluginpref_get_str(lib.ph, name, string_out) is not 1: + if lib.hexchat_pluginpref_get_str(lib.ph, name, string_out) != 1: return None string = ffi.string(string_out) @@ -308,8 +318,9 @@ def del_pluginpref(name): def list_pluginpref(): prefs_str = ffi.new('char[4096]') - if lib.hexchat_pluginpref_list(lib.ph, prefs_str) is 1: + if lib.hexchat_pluginpref_list(lib.ph, prefs_str) == 1: return __decode(prefs_str).split(',') + return [] @@ -320,6 +331,7 @@ class Context: def __eq__(self, value): if not isinstance(value, Context): return False + return self._ctx == value._ctx @contextmanager @@ -327,9 +339,9 @@ class Context: old_ctx = lib.hexchat_get_context(lib.ph) if not self.set(): # XXX: Behavior change, previously used wrong context - lib.hexchat_print(lib.ph, - b'Context object refers to closed context, ignoring call') + lib.hexchat_print(lib.ph, b'Context object refers to closed context, ignoring call') return + yield lib.hexchat_set_context(lib.ph, old_ctx) @@ -370,4 +382,5 @@ def find_context(server=None, channel=None): ctx = lib.hexchat_find_context(lib.ph, server, channel) if ctx == ffi.NULL: return None + return Context(ctx) diff --git a/plugins/python/python.py b/plugins/python/python.py index 1afb36c4..30694802 100644 --- a/plugins/python/python.py +++ b/plugins/python/python.py @@ -1,30 +1,30 @@ from __future__ import print_function +import importlib import os import pydoc -import sys -from contextlib import contextmanager -import importlib import signal -import site +import sys import traceback import weakref +from contextlib import contextmanager + +from _hexchat_embedded import ffi, lib if sys.version_info < (3, 0): from io import BytesIO as HelpEater else: from io import StringIO as HelpEater -from _hexchat_embedded import ffi, lib - if not hasattr(sys, 'argv'): sys.argv = ['<hexchat>'] VERSION = b'2.0' # Sync with hexchat.__version__ PLUGIN_NAME = ffi.new('char[]', b'Python') -PLUGIN_DESC = ffi.new('char[]', b'Python %d.%d scripting interface' - % (sys.version_info[0], sys.version_info[1])) +PLUGIN_DESC = ffi.new('char[]', b'Python %d.%d scripting interface' % (sys.version_info[0], sys.version_info[1])) PLUGIN_VERSION = ffi.new('char[]', VERSION) + +# TODO: Constants should be screaming snake case hexchat = None local_interp = None hexchat_stdout = None @@ -40,10 +40,11 @@ def redirected_stdout(): sys.stderr = hexchat_stdout -if os.environ.get('HEXCHAT_LOG_PYTHON'): +if os.getenv('HEXCHAT_LOG_PYTHON'): def log(*args): with redirected_stdout(): print(*args) + else: def log(*args): pass @@ -56,7 +57,7 @@ class Stdout: def write(self, string): string = string.encode() idx = string.rfind(b'\n') - if idx is not -1: + if idx != -1: self.buffer += string[:idx] lib.hexchat_print(lib.ph, bytes(self.buffer)) self.buffer = bytearray(string[idx + 1:]) @@ -91,13 +92,15 @@ class Hook: lib.hexchat_unhook(lib.ph, self.hexchat_hook) -if sys.version_info[0] is 2: +if sys.version_info[0] == 2: def compile_file(data, filename): return compile(data, filename, 'exec', dont_inherit=True) + def compile_line(string): try: return compile(string, '<string>', 'eval', dont_inherit=True) + except SyntaxError: # For some reason `print` is invalid for eval # This will hide any return value though @@ -106,6 +109,7 @@ else: def compile_file(data, filename): return compile(data, filename, 'exec', optimize=2, dont_inherit=True) + def compile_line(string): # newline appended to solve unexpected EOF issues return compile(string + '\n', '<string>', 'single', optimize=2, dont_inherit=True) @@ -135,8 +139,9 @@ class Plugin: ud = h.userdata self.hooks.remove(h) return ud - else: - log('Hook not found') + + log('Hook not found') + return None def loadfile(self, filename): try: @@ -148,21 +153,22 @@ class Plugin: try: self.name = self.globals['__module_name__'] + except KeyError: lib.hexchat_print(lib.ph, b'Failed to load module: __module_name__ must be set') + return False self.version = self.globals.get('__module_version__', '') self.description = self.globals.get('__module_description__', '') - self.ph = lib.hexchat_plugingui_add(lib.ph, filename.encode(), - self.name.encode(), - self.description.encode(), - self.version.encode(), - ffi.NULL) + self.ph = lib.hexchat_plugingui_add(lib.ph, filename.encode(), self.name.encode(), + self.description.encode(), self.version.encode(), ffi.NULL) + except Exception as e: lib.hexchat_print(lib.ph, 'Failed to load module: {}'.format(e).encode()) traceback.print_exc() return False + return True def __del__(self): @@ -171,17 +177,20 @@ class Plugin: if hook.is_unload is True: try: hook.callback(hook.userdata) + except Exception as e: log('Failed to run hook:', e) traceback.print_exc() + del self.hooks if self.ph is not None: lib.hexchat_plugingui_remove(lib.ph, self.ph) -if sys.version_info[0] is 2: +if sys.version_info[0] == 2: def __decode(string): return string + else: def __decode(string): return string.decode() @@ -192,6 +201,7 @@ def wordlist_len(words): for i in range(31, 1, -1): if ffi.string(words[i]): return i + return 0 @@ -205,24 +215,26 @@ def create_wordlist(words): # This makes no sense to do... def create_wordeollist(words): words = reversed(words) - last = None accum = None ret = [] for word in words: if accum is None: accum = word + elif word: last = accum accum = ' '.join((word, last)) + ret.insert(0, accum) + return ret def to_cb_ret(value): if value is None: return 0 - else: - return int(value) + + return int(value) @ffi.def_extern() @@ -274,13 +286,14 @@ def _on_timer_hook(userdata): hook = ffi.from_handle(userdata) if hook.callback(hook.userdata) is True: return 1 - else: - hook.is_unload = True # Don't unhook - for h in hook.plugin.hooks: - if h == hook: - hook.plugin.hooks.remove(h) - break - return 0 + + hook.is_unload = True # Don't unhook + for h in hook.plugin.hooks: + if h == hook: + hook.plugin.hooks.remove(h) + break + + return 0 @ffi.def_extern(error=3) @@ -291,6 +304,7 @@ def _on_say_command(word, word_eol, userdata): lib.hexchat_print(lib.ph, b'>>> ' + python) exec_in_interp(__decode(python)) return 1 + return 0 @@ -298,33 +312,36 @@ def load_filename(filename): filename = os.path.expanduser(filename) if not os.path.isabs(filename): configdir = __decode(ffi.string(lib.hexchat_get_info(lib.ph, b'configdir'))) + filename = os.path.join(configdir, 'addons', filename) + if filename and not any(plugin.filename == filename for plugin in plugins): plugin = Plugin() if plugin.loadfile(filename): plugins.add(plugin) return True + return False def unload_name(name): if name: for plugin in plugins: - if name in (plugin.name, plugin.filename, - os.path.basename(plugin.filename)): + if name in (plugin.name, plugin.filename, os.path.basename(plugin.filename)): plugins.remove(plugin) return True + return False def reload_name(name): if name: for plugin in plugins: - if name in (plugin.name, plugin.filename, - os.path.basename(plugin.filename)): + if name in (plugin.name, plugin.filename, os.path.basename(plugin.filename)): filename = plugin.filename plugins.remove(plugin) return load_filename(filename) + return False @@ -346,6 +363,7 @@ def autoload(): log('Autoloading', f) # TODO: Set cwd load_filename(os.path.join(addondir, f)) + except FileNotFoundError as e: log('Autoload failed', e) @@ -376,7 +394,6 @@ def list_plugins(): for row in tbl: lib.hexchat_print(lib.ph, b' '.join(item.ljust(column_sizes[i]) for i, item in enumerate(row))) - lib.hexchat_print(lib.ph, b'') @@ -396,6 +413,7 @@ def exec_in_interp(python): ret = eval(code, local_interp.globals, local_interp.locals) if ret is not None: lib.hexchat_print(lib.ph, '{}'.format(ret).encode()) + except Exception as e: traceback.print_exc(file=hexchat_stdout) @@ -406,6 +424,7 @@ def _on_load_command(word, word_eol, userdata): if filename.endswith(b'.py'): load_filename(__decode(filename)) return 3 + return 0 @@ -415,6 +434,7 @@ def _on_unload_command(word, word_eol, userdata): if filename.endswith(b'.py'): unload_name(__decode(filename)) return 3 + return 0 @@ -424,6 +444,7 @@ def _on_reload_command(word, word_eol, userdata): if filename.endswith(b'.py'): reload_name(__decode(filename)) return 3 + return 0 @@ -434,23 +455,30 @@ def _on_py_command(word, word_eol, userdata): if subcmd == 'exec': python = __decode(ffi.string(word_eol[3])) exec_in_interp(python) + elif subcmd == 'load': filename = __decode(ffi.string(word[3])) load_filename(filename) + elif subcmd == 'unload': name = __decode(ffi.string(word[3])) if not unload_name(name): lib.hexchat_print(lib.ph, b'Can\'t find a python plugin with that name') + elif subcmd == 'reload': name = __decode(ffi.string(word[3])) if not reload_name(name): lib.hexchat_print(lib.ph, b'Can\'t find a python plugin with that name') + elif subcmd == 'console': lib.hexchat_command(lib.ph, b'QUERY >>python<<') + elif subcmd == 'list': list_plugins() + elif subcmd == 'about': lib.hexchat_print(lib.ph, b'HexChat Python interface version ' + VERSION) + else: lib.hexchat_command(lib.ph, b'HELP PY') @@ -473,8 +501,10 @@ def _on_plugin_init(plugin_name, plugin_desc, plugin_version, arg, libdir): modpath = os.path.join(libdir, '..', 'python') sys.path.append(os.path.abspath(modpath)) hexchat = importlib.import_module('hexchat') + except (UnicodeDecodeError, ImportError) as e: lib.hexchat_print(lib.ph, b'Failed to import module: ' + repr(e).encode()) + return 0 hexchat_stdout = Stdout() @@ -517,6 +547,7 @@ def _on_plugin_deinit(): for mod in ('_hexchat', 'hexchat', 'xchat', '_hexchat_embedded'): try: del sys.modules[mod] + except KeyError: pass diff --git a/plugins/python/python_style_guide.md b/plugins/python/python_style_guide.md new file mode 100644 index 00000000..41db2474 --- /dev/null +++ b/plugins/python/python_style_guide.md @@ -0,0 +1,26 @@ +# HexChat Python Module Style Guide + +(This is a work in progress). + +## General rules + +- PEP8 as general fallback recommendations +- Max line length: 120 +- Avoid overcomplex compound statements. i.e. dont do this: `somevar = x if x == y else z if a == b and c == b else x` + +## Indentation style + +### Multi-line functions + +```python +foo(really_long_arg_1, + really_long_arg_2) +``` + +### Mutli-line lists/dicts + +```python +foo = { + 'bar': 'baz', +} +``` |