def ImportableStringList(x):
for s in x:
assert isinstance(s, basestring)
try:
from_dotpath(s)
except Exception,e:
raise Invalid(str(e))
def __call__(self):
if self.type == 'python':
fxn = from_dotpath(self.value)
if not callable(fxn):
err = ("prompt component {0} references "
"something that's not callable!")
err = err.format(dict(self))
raise PromptError(err)
result = fxn()
elif self.type == 'literal':
result = self.value
elif self.type == 'shell':
result = qlocal(self.value, capture=True).strip()
elif self.type == 'env':
if self.value.startswith('$'):
value = self.value[1:]
else:
value = self.value
result = os.environ.get(value, '')
else:
err = 'invalid prompt component: {0}'
err = err.format(self)
raise Exception(err)
# post-processing
if result and self.space_margins:
if self.space_margins == True or \
self.space_margins.lower() == 'true':
result = ' {0} '.format(result)
if self.color:
# have to use IPython's formatting rules so that IPython
# can correctly calculate terminal width w/ invisible chars
return '{color.' + self.color.title() + '}' + result + '{color.Normal}'
else:
return result
def _event_set_change_dir_hooks(self, slice_or_index, val):
try:
obj = from_dotpath(val)
except ObjectNotFound as e:
err = 'ChangeDirHooks.change_dir_hooks: '
raise ObjectNotFound(err + e.message)
self.report("retrieved from dotpath: ", obj)
self.report("object will be subscribed to <{0}>".format(C_CHANGE_DIR))
self.smash.bus.subscribe(C_CHANGE_DIR, obj)
def init_plugins(self):
_installed_plugins = {}
for dotpath in self.plugins:
try:
mod = from_dotpath(dotpath)
except AttributeError as e:
error = "Error working with plugin {0}: {1}"
error = error.format(dotpath, e)
raise SystemExit(error)
ext_name = dotpath.split('.')[-1]
load_fxn = getattr(mod, 'load_ipython_extension', None)
if load_fxn is None:
error = ('Check configuration at {2}. Entry "{0}" '
'resolves to {1}, but no load_ipython_extension '
'function was found')
raise ConfigError(error.format(
dotpath, mod, data.DIR_SMASH_ETC))
ext_obj = mod.load_ipython_extension(self.shell)
if not isinstance(ext_obj, Plugin):
error = ("error with extension '{0}': "
"smash requires load_ipython_extension()"
" to return plugin object ")
error = error.format(ext_name)
raise ConfigError(error)
_installed_plugins[ext_name] = ext_obj
if ext_obj is None:
msg = '{0}.load_ipython_extension should return an object'
msg = msg.format(dotpath)
self.warning(msg)
self._installed_plugins = _installed_plugins
tmp = [AliasInterface, PluginInterface, PromptInterface]
for IfaceCls in tmp:
iface = IfaceCls(self)
iface.update()
#get_ipython().user_ns.update({iface.user_ns_var: iface})
self.report("loaded plugins:", _installed_plugins.keys())
