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""" Rope support in pymode. """
from __future__ import absolute_import, print_function
import multiprocessing
import os.path
import re
import site
import sys
from rope.base import project, libutils, exceptions, change, worder # noqa
from rope.base.fscommands import FileSystemCommands # noqa
from rope.base.taskhandle import TaskHandle # noqa
from rope.contrib import autoimport as rope_autoimport, codeassist, findit, generate # noqa
from rope.refactor import ModuleToPackage, ImportOrganizer, rename, extract, inline, usefunction, move, change_signature, importutils # noqa
from .environment import env
def look_ropeproject(path):
""" Search for ropeproject in current and parent dirs.
:return str|None: A finded path
"""
env.debug('Look project', path)
p = os.path.abspath(path)
while True:
if '.ropeproject' in os.listdir(p):
return p
new_p = os.path.abspath(os.path.join(p, ".."))
if new_p == p:
return path
p = new_p
@env.catch_exceptions
def completions():
""" Search completions.
:return None:
"""
row, col = env.cursor
if env.var('a:findstart', True):
count = 0
for char in reversed(env.current.line[:col]):
if not re.match(r'[\w\d]', char):
break
count += 1
env.debug('Complete find start', (col - count))
return env.stop(col - count)
base = env.var('a:base')
source, offset = env.get_offset_params((row, col), base)
proposals = get_proporsals(source, offset, base)
return env.stop(proposals)
FROM_RE = re.compile(r'^\s*from\s+[\.\w\d_]+$')
@env.catch_exceptions
def complete(dot=False):
""" Ctrl+Space completion.
:return bool: success
"""
row, col = env.cursor
source, offset = env.get_offset_params()
cline = env.current.line[:col]
env.debug('dot completion', cline)
if FROM_RE.match(cline) or cline.endswith('..') or cline.endswith('\.'):
return env.stop("")
proposals = get_proporsals(source, offset, dot=dot)
if not proposals:
return False
prefix = proposals[0]['word']
# Find common part
for p in proposals:
common = len([
c1 for c1, c2 in zip(prefix, p['word']) if c1 == c2 and c1 != ' '
])
prefix = prefix[:common]
s_offset = codeassist.starting_offset(source, offset)
p_prefix = prefix[offset - s_offset:]
line = env.lines[row - 1]
cline = line[:col] + p_prefix + line[col:]
if cline != line:
env.curbuf[row - 1] = env.prepare_value(cline, dumps=False)
env.current.window.cursor = (row, col + len(p_prefix))
env.run('complete', col - len(prefix) + len(p_prefix) + 1, proposals)
return True
def get_proporsals(source, offset, base='', dot=False):
""" Code assist.
:return str:
"""
with RopeContext() as ctx:
try:
proposals = codeassist.code_assist(
ctx.project, source, offset, ctx.resource, maxfixes=3,
later_locals=False)
except exceptions.ModuleSyntaxError:
proposals = []
proposals = sorted(proposals, key=_sort_proporsals)
out = []
preview = 'preview' in ctx.options.get('completeopt')
for p in proposals:
out.append(dict(
word=p.name,
menu=p.type,
kind=p.scope + ':',
info=p.get_doc() or "No docs." if preview else "",
))
out = _get_autoimport_proposals(out, ctx, source, offset, dot=dot)
return out
@env.catch_exceptions
def goto():
""" Goto definition. """
with RopeContext() as ctx:
source, offset = env.get_offset_params()
found_resource, line = codeassist.get_definition_location(
ctx.project, source, offset, ctx.resource, maxfixes=3)
if not found_resource:
env.error('Definition not found')
return
env.goto_file(
found_resource.real_path, cmd=ctx.options.get('goto_definition_cmd'))
env.goto_line(line)
@env.catch_exceptions
def show_doc():
""" Show documentation. """
with RopeContext() as ctx:
source, offset = env.get_offset_params()
try:
doc = codeassist.get_doc(
ctx.project, source, offset, ctx.resource, maxfixes=3)
if not doc:
raise exceptions.BadIdentifierError
env.let('l:output', doc.split('\n'))
except exceptions.BadIdentifierError:
env.error("No documentation found.")
def find_it():
""" Find occurrences. """
with RopeContext() as ctx:
_, offset = env.get_offset_params()
try:
occurrences = findit.find_occurrences(
ctx.project, ctx.resource, offset)
except exceptions.BadIdentifierError:
occurrences = []
lst = []
for oc in occurrences:
lst.append(dict(
filename=oc.resource.path,
text=env.lines[oc.lineno - 1] if oc.resource.real_path == env.curbuf.name else "", # noqa
lnum=oc.lineno,
))
env.let('loclist._loclist', lst)
def update_python_path(paths):
""" Update sys.path and make sure the new items come first. """
old_sys_path_items = list(sys.path)
for path in paths:
# see if it is a site dir
if path.find('site-packages') != -1:
site.addsitedir(path)
else:
sys.path.insert(0, path)
# Reorder sys.path so new directories at the front.
new_sys_path_items = set(sys.path) - set(old_sys_path_items)
sys.path = list(new_sys_path_items) + old_sys_path_items
def organize_imports():
""" Organize imports in current file. """
with RopeContext() as ctx:
organizer = ImportOrganizer(ctx.project)
changes = organizer.organize_imports(ctx.resource)
if changes is not None:
progress = ProgressHandler('Organize imports')
ctx.project.do(changes, task_handle=progress.handle)
reload_changes(changes)
@env.catch_exceptions
def regenerate():
""" Clear cache. """
with RopeContext() as ctx:
ctx.project.pycore._invalidate_resource_cache(ctx.resource) # noqa
ctx.importer.generate_cache(resources=[ctx.resource])
ctx.project.sync()
def new():
""" Create a new project. """
root = env.var('input("Enter project root: ", getcwd())')
prj = project.Project(projectroot=root)
prj.close()
env.message("Project is opened: %s" % root)
def undo():
""" Undo last changes.
:return bool:
"""
with RopeContext() as ctx:
changes = ctx.project.history.tobe_undone
if changes is None:
env.error('Nothing to undo!')
return False
if env.user_confirm('Undo [%s]?' % str(changes)):
progress = ProgressHandler('Undo %s' % str(changes))
for c in ctx.project.history.undo(task_handle=progress.handle):
reload_changes(c)
def redo():
""" Redo last changes.
:return bool:
"""
with RopeContext() as ctx:
changes = ctx.project.history.tobe_redone
if changes is None:
env.error('Nothing to redo!')
return False
if env.user_confirm('Redo [%s]?' % str(changes)):
progress = ProgressHandler('Redo %s' % str(changes))
for c in ctx.project.history.redo(task_handle=progress.handle):
reload_changes(c)
def cache_project(cls):
""" Cache projects.
:return func:
"""
projects = dict()
resources = dict()
def get_ctx(*args, **kwargs):
path = env.curbuf.name
if resources.get(path):
return resources.get(path)
project_path = env.curdir
env.debug('Look ctx', project_path)
if env.var('g:pymode_rope_lookup_project', True):
project_path = look_ropeproject(project_path)
ctx = projects.get(project_path)
if not ctx:
projects[project_path] = ctx = cls(path, project_path)
resources[path] = ctx
return ctx
return get_ctx
def autoimport():
""" Autoimport modules.
:return bool:
"""
word = env.var('a:word')
if not word:
env.error("Should be word under cursor.")
return False
with RopeContext() as ctx:
if not ctx.importer.names:
ctx.generate_autoimport_cache()
modules = ctx.importer.get_modules(word)
if not modules:
env.message('Global name %s not found.' % word)
return False
if len(modules) == 1:
_insert_import(word, modules[0], ctx)
else:
module = env.user_input_choices('Which module to import:', *modules)
_insert_import(word, module, ctx)
return True
@cache_project
class RopeContext(object):
""" A context manager to have a rope project context. """
def __init__(self, path, project_path):
self.path = path
self.project = project.Project(
project_path, fscommands=FileSystemCommands())
self.importer = rope_autoimport.AutoImport(
project=self.project, observe=False)
update_python_path(self.project.prefs.get('python_path', []))
self.resource = None
self.current = None
self.options = dict(
completeopt=env.var('&completeopt'),
autoimport=env.var('g:pymode_rope_autoimport', True),
autoimport_modules=env.var('g:pymode_rope_autoimport_modules'),
goto_definition_cmd=env.var('g:pymode_rope_goto_definition_cmd'),
)
if os.path.exists("%s/__init__.py" % project_path):
sys.path.append(project_path)
if self.options.get('autoimport') == '1':
self.generate_autoimport_cache()
env.debug('Context init', project_path)
env.message('Init Rope project: %s' % project_path)
def __enter__(self):
env.let('g:pymode_rope_current', self.project.root.real_path)
self.project.validate(self.project.root)
self.resource = libutils.path_to_resource(
self.project, env.curbuf.name, 'file')
if not self.resource.exists() or os.path.isdir(
self.resource.real_path):
self.resource = None
else:
env.debug('Found resource', self.resource.path)
return self
def __exit__(self, t, value, traceback):
if t is None:
self.project.close()
def generate_autoimport_cache(self):
""" Update autoimport cache. """
env.message('Regenerate autoimport cache.')
modules = self.options.get('autoimport_modules', [])
def _update_cache(importer, modules=None):
importer.generate_cache()
if modules:
importer.generate_modules_cache(modules)
importer.project.sync()
process = multiprocessing.Process(target=_update_cache, args=(
self.importer, modules))
process.start()
class ProgressHandler(object):
""" Handle task progress. """
def __init__(self, msg):
self.handle = TaskHandle(name="refactoring_handle")
self.handle.add_observer(self)
self.message = msg
def __call__(self):
""" Show current progress. """
percent_done = self.handle.current_jobset().get_percent_done()
env.message('%s - done %s%%' % (self.message, percent_done))
_scope_weight = {
'local': 10, 'attribute': 20, 'global': 30, 'imported': 40, 'builtin': 50}
def _sort_proporsals(p):
return (
_scope_weight.get(p.scope, 100), int(p.name.startswith('_')), p.name)
class Refactoring(object): # noqa
""" Base class for refactor operations. """
def run(self):
""" Run refactoring.
:return bool:
"""
with RopeContext() as ctx:
if not ctx.resource:
env.error("You should save the file before refactoring.")
return None
try:
env.message(self.__doc__)
refactor = self.get_refactor(ctx)
input_str = self.get_input_str(refactor, ctx)
if not input_str:
return False
changes = self.get_changes(refactor, input_str)
action = env.user_input_choices(
'Choose what to do:', 'perform', 'preview')
if not action:
return False
if action == 'preview':
print("\n ")
print("-------------------------------")
print("\n%s\n" % changes.get_description())
print("-------------------------------\n\n")
if not env.user_confirm('Do the changes?'):
return False
progress = ProgressHandler('Apply changes ...')
ctx.project.do(changes, task_handle=progress.handle)
reload_changes(changes)
except exceptions.RefactoringError as e:
env.error(str(e))
except Exception as e:
env.error('Unhandled exception in Pymode: %s' % e)
@staticmethod
def get_refactor(ctx):
""" Get refactor object. """
raise NotImplementedError
@staticmethod
def get_input_str(refactor, ctx):
""" Get user input. Skip by default.
:return bool: True
"""
return True
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
progress = ProgressHandler('Calculate changes ...')
return refactor.get_changes(
input_str, task_handle=progress.handle)
class RenameRefactoring(Refactoring):
""" Rename var/function/method/class. """
def __init__(self, module=False):
self.module = module
super(RenameRefactoring, self).__init__()
def get_refactor(self, ctx):
""" Function description.
:return Rename:
"""
offset = None
if not self.module:
_, offset = env.get_offset_params()
env.debug('Prepare rename', offset)
return rename.Rename(ctx.project, ctx.resource, offset)
def get_input_str(self, refactor, ctx):
""" Return user input. """
oldname = str(refactor.get_old_name())
msg = 'Renaming method/variable. New name:'
if self.module:
msg = 'Renaming module. New name:'
newname = env.user_input(msg, oldname)
if newname == oldname:
env.message("Nothing to do.")
return False
return newname
class ExtractMethodRefactoring(Refactoring):
""" Extract method. """
@staticmethod
def get_input_str(refactor, ctx):
""" Return user input. """
return env.user_input('New method name:')
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
cursor1, cursor2 = env.curbuf.mark('<'), env.curbuf.mark('>')
_, offset1 = env.get_offset_params(cursor1)
_, offset2 = env.get_offset_params(cursor2)
return extract.ExtractMethod(
ctx.project, ctx.resource, offset1, offset2)
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
return refactor.get_changes(input_str)
class ExtractVariableRefactoring(Refactoring):
""" Extract variable. """
@staticmethod
def get_input_str(refactor, ctx):
""" Return user input. """
return env.user_input('New variable name:')
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
cursor1, cursor2 = env.curbuf.mark('<'), env.curbuf.mark('>')
_, offset1 = env.get_offset_params(cursor1)
_, offset2 = env.get_offset_params(cursor2)
return extract.ExtractVariable(
ctx.project, ctx.resource, offset1, offset2)
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
return refactor.get_changes(input_str)
class InlineRefactoring(Refactoring):
""" Inline variable/method. """
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
_, offset = env.get_offset_params()
return inline.create_inline(ctx.project, ctx.resource, offset)
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
progress = ProgressHandler('Calculate changes ...')
return refactor.get_changes(task_handle=progress.handle)
class UseFunctionRefactoring(Refactoring):
""" Use selected function as possible. """
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
_, offset = env.get_offset_params()
return usefunction.UseFunction(ctx.project, ctx.resource, offset)
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
progress = ProgressHandler('Calculate changes ...')
return refactor.get_changes(
resources=[refactor.resource], task_handle=progress.handle)
class ModuleToPackageRefactoring(Refactoring):
""" Convert module to package. """
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
return ModuleToPackage(ctx.project, ctx.resource)
@staticmethod
def get_changes(refactor, input_str):
""" Get changes.
:return Changes:
"""
return refactor.get_changes()
class MoveRefactoring(Refactoring):
""" Move method/module to other class/global. """
@staticmethod
def get_input_str(refactor, ctx):
""" Get destination.
:return str:
"""
return env.user_input('Enter destination:')
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
_, offset = env.get_offset_params()
if offset == 0:
offset = None
return move.create_move(ctx.project, ctx.resource, offset)
class ChangeSignatureRefactoring(Refactoring):
""" Change function signature (add/remove/sort arguments). """
@staticmethod
def get_input_str(refactor, ctx):
""" Get destination.
:return str:
"""
args = refactor.get_args()
default = ', '.join(a[0] for a in args)
return env.user_input('Change the signature:', default)
@staticmethod
def get_refactor(ctx):
""" Function description.
:return Rename:
"""
_, offset = env.get_offset_params()
return change_signature.ChangeSignature(
ctx.project, ctx.resource, offset)
def get_changes(self, refactor, input_string):
""" Function description.
:return Rope.changes:
"""
args = re.sub(r'[\s\(\)]+', '', input_string).split(',')
olds = [arg[0] for arg in refactor.get_args()]
changers = []
for arg in [a for a in olds if not a in args]:
changers.append(change_signature.ArgumentRemover(olds.index(arg)))
olds.remove(arg)
order = []
for index, arg in enumerate(args):
if arg not in olds:
changers.append(change_signature.ArgumentAdder(index, arg))
olds.insert(index, arg)
order.append(olds.index(arg))
changers.append(change_signature.ArgumentReorderer(
order, autodef='None'))
return refactor.get_changes(changers)
class GenerateElementRefactoring(Refactoring):
""" Class description. """
def __init__(self, kind, *args, **kwargs):
""" Function description. """
self.kind = kind
super(GenerateElementRefactoring, self).__init__(*args, **kwargs)
def get_refactor(self, ctx):
""" Function description.
:return Rename:
"""
_, offset = env.get_offset_params()
return generate.create_generate(
self.kind, ctx.project, ctx.resource, offset)
def get_changes(self, refactor, input_str):
""" Function description.
:return Rope.changes:
"""
return refactor.get_changes()
@env.catch_exceptions
def reload_changes(changes):
""" Reload changed buffers. """
resources = changes.get_changed_resources()
moved = _get_moved_resources(changes) # noqa
current = env.curbuf.number
for f in resources:
bufnr = env.var('bufnr("%s")' % f.real_path)
env.goto_buffer(bufnr)
path = env.curbuf.name
if f in moved:
path = moved[f].real_path
env.debug('Reload', f.real_path, path, bufnr)
env.goto_file(path, 'e!', force=True)
env.message("%s has been changed." % f.real_path, history=True)
env.goto_buffer(current)
def _get_moved_resources(changes):
moved = dict()
if isinstance(changes, change.ChangeSet):
for c in changes.changes:
moved.update(_get_moved_resources(c))
if isinstance(changes, change.MoveResource):
moved[changes.resource] = changes.new_resource
return moved
def _get_autoimport_proposals(out, ctx, source, offset, dot=False):
if not ctx.options.get('autoimport') or dot:
return out
if '.' in codeassist.starting_expression(source, offset):
return out
current_offset = offset - 1
while current_offset > 0 and (
source[current_offset].isalnum() or source[current_offset] == '_'):
current_offset -= 1
starting = source[current_offset:offset]
starting = starting.strip()
if not starting:
return out
for assist in ctx.importer.import_assist(starting):
out.append(dict(
abbr=' : '.join(assist),
word=assist[0],
kind='autoimport:',
))
return out
@env.catch_exceptions
def complete_check():
""" Function description.
:return bool:
"""
row, column = env.cursor
line = env.lines[row - 1]
word_finder = worder.Worder(line, True)
parent, name, _ = word_finder.get_splitted_primary_before(column - 1)
if parent:
return False
with RopeContext() as ctx:
modules = ctx.importer.get_modules(name)
if not modules:
return False
if name in ctx.project.pycore.resource_to_pyobject(ctx.resource):
return False
if not env.user_confirm("Import %s?" % name, True):
return False
if len(modules) == 1:
_insert_import(name, modules[0], ctx)
else:
module = env.user_input_choices('With module to import:', *modules)
if module:
_insert_import(name, module, ctx)
def _insert_import(name, module, ctx):
if not ctx.resource:
source, _ = env.get_offset_params()
lineno = ctx.importer.find_insertion_line(source)
line = 'from %s import %s' % (module, name)
env.curbuf[lineno - 1:lineno - 1] = [
env.prepare_value(line, dumps=False)]
return True
pyobject = ctx.project.pycore.resource_to_pyobject(ctx.resource)
import_tools = importutils.ImportTools(ctx.project.pycore)
module_imports = import_tools.module_imports(pyobject)
new_import = importutils.FromImport(module, 0, [[name, None]])
module_imports.add_import(new_import)
changes = change.ChangeContents(
ctx.resource, module_imports.get_changed_source())
action = env.user_input_choices(
'Choose what to do:', 'perform', 'preview')
if not action:
return False
if action == 'preview':
print("\n ")
print("-------------------------------")
print("\n%s\n" % changes.get_description())
print("-------------------------------\n\n")
if not env.user_confirm('Do the changes?'):
return False
progress = ProgressHandler('Apply changes ...')
ctx.project.do(changes, task_handle=progress.handle)
reload_changes(changes)