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GeezerVison is showing github.com — pythonVSCode/pythonFiles/refactor.py at master · solidrock/pythonVSCode

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# Arguments are:
# 1. Working directory.
# 2. Rope folder
import io
import sys
import json
import traceback
import rope
from rope.base import libutils
from rope.refactor.rename import Rename
from rope.refactor.extract import ExtractMethod, ExtractVariable
import rope.base.project
import rope.base.taskhandle
WORKSPACE_ROOT = sys.argv[1]
ROPE_PROJECT_FOLDER = '.vscode/.ropeproject'
class RefactorProgress():
"""
Refactor progress information
"""
def __init__(self, name='Task Name', message=None, percent=0):
self.name = name
self.message = message
self.percent = percent
class ChangeType():
"""
Change Type Enum
"""
EDIT = 0
NEW = 1
DELETE = 2
class Change():
"""
"""
EDIT = 0
NEW = 1
DELETE = 2
def __init__(self, filePath, fileMode=ChangeType.EDIT, diff=""):
self.filePath = filePath
self.diff = diff
self.fileMode = fileMode
class BaseRefactoring(object):
"""
Base class for refactorings
"""
def __init__(self, project, resource, name="Refactor", progressCallback=None):
self._progressCallback = progressCallback
self._handle = rope.base.taskhandle.TaskHandle(name)
self._handle.add_observer(self._update_progress)
self.project = project
self.resource = resource
self.changes = []
def _update_progress(self):
jobset = self._handle.current_jobset()
if jobset and not self._progressCallback is None:
progress = RefactorProgress()
# getting current job set name
if jobset.get_name() is not None:
progress.name = jobset.get_name()
# getting active job name
if jobset.get_active_job_name() is not None:
progress.message = jobset.get_active_job_name()
# adding done percent
percent = jobset.get_percent_done()
if percent is not None:
progress.percent = percent
if not self._progressCallback is None:
self._progressCallback(progress)
def stop(self):
self._handle.stop()
def refactor(self):
try:
self.onRefactor()
except rope.base.exceptions.InterruptedTaskError:
# we can ignore this exception, as user has cancelled refactoring
pass
def onRefactor(self):
"""
To be implemented by each base class
"""
pass
class RenameRefactor(BaseRefactoring):
def __init__(self, project, resource, name="Rename", progressCallback=None, startOffset=None, newName="new_Name"):
BaseRefactoring.__init__(self, project, resource,
name, progressCallback)
self._newName = newName
self.startOffset = startOffset
def onRefactor(self):
renamed = Rename(self.project, self.resource, self.startOffset)
changes = renamed.get_changes(self._newName, task_handle=self._handle)
for item in changes.changes:
if isinstance(item, rope.base.change.ChangeContents):
self.changes.append(
Change(item.resource.real_path, ChangeType.EDIT, item.get_description()))
else:
raise Exception('Unknown Change')
class ExtractVariableRefactor(BaseRefactoring):
def __init__(self, project, resource, name="Extract Variable", progressCallback=None, startOffset=None, endOffset=None, newName="new_Name", similar=False, global_=False):
BaseRefactoring.__init__(self, project, resource,
name, progressCallback)
self._newName = newName
self._startOffset = startOffset
self._endOffset = endOffset
self._similar = similar
self._global = global_
def onRefactor(self):
renamed = ExtractVariable(
self.project, self.resource, self._startOffset, self._endOffset)
changes = renamed.get_changes(
self._newName, self._similar, self._global)
for item in changes.changes:
if isinstance(item, rope.base.change.ChangeContents):
self.changes.append(
Change(item.resource.real_path, ChangeType.EDIT, item.get_description()))
else:
raise Exception('Unknown Change')
class ExtractMethodRefactor(ExtractVariableRefactor):
def __init__(self, project, resource, name="Extract Method", progressCallback=None, startOffset=None, endOffset=None, newName="new_Name", similar=False, global_=False):
ExtractVariableRefactor.__init__(self, project, resource,
name, progressCallback, startOffset=startOffset, endOffset=endOffset, newName=newName, similar=similar, global_=global_)
def onRefactor(self):
renamed = ExtractMethod(
self.project, self.resource, self._startOffset, self._endOffset)
changes = renamed.get_changes(
self._newName, self._similar, self._global)
for item in changes.changes:
if isinstance(item, rope.base.change.ChangeContents):
self.changes.append(
Change(item.resource.real_path, ChangeType.EDIT, item.get_description()))
else:
raise Exception('Unknown Change')
class RopeRefactoring(object):
def __init__(self):
self.default_sys_path = sys.path
self._input = io.open(sys.stdin.fileno(), encoding='utf-8')
def _extractVariable(self, filePath, start, end, newName):
"""
Extracts a variale
"""
project = rope.base.project.Project(
WORKSPACE_ROOT, ropefolder=ROPE_PROJECT_FOLDER, save_history=False)
resourceToRefactor = libutils.path_to_resource(project, filePath)
refactor = ExtractVariableRefactor(
project, resourceToRefactor, startOffset=start, endOffset=end, newName=newName, similar=True)
refactor.refactor()
changes = refactor.changes
project.close()
valueToReturn = []
for change in changes:
valueToReturn.append({'diff': change.diff})
return valueToReturn
def _extractMethod(self, filePath, start, end, newName):
"""
Extracts a method
"""
project = rope.base.project.Project(
WORKSPACE_ROOT, ropefolder=ROPE_PROJECT_FOLDER, save_history=False)
resourceToRefactor = libutils.path_to_resource(project, filePath)
refactor = ExtractMethodRefactor(
project, resourceToRefactor, startOffset=start, endOffset=end, newName=newName, similar=True)
refactor.refactor()
changes = refactor.changes
project.close()
valueToReturn = []
for change in changes:
valueToReturn.append({'diff': change.diff})
return valueToReturn
def _serialize(self, identifier, results):
"""
Serializes the refactor results
"""
return json.dumps({'id': identifier, 'results': results})
def _deserialize(self, request):
"""Deserialize request from VSCode.
Args:
request: String with raw request from VSCode.
Returns:
Python dictionary with request data.
"""
return json.loads(request)
def _process_request(self, request):
"""Accept serialized request from VSCode and write response.
"""
request = self._deserialize(request)
lookup = request.get('lookup', '')
if lookup == '':
pass
elif lookup == 'extract_variable':
changes = self._extractVariable(request['file'], int(
request['start']), int(request['end']), request['name'])
return self._write_response(self._serialize(request['id'], changes))
elif lookup == 'extract_method':
changes = self._extractMethod(request['file'], int(
request['start']), int(request['end']), request['name'])
return self._write_response(self._serialize(request['id'], changes))
def _write_response(self, response):
sys.stdout.write(response + '\n')
sys.stdout.flush()
def watch(self):
self._write_response("STARTED")
while True:
try:
self._process_request(self._input.readline())
except Exception as ex:
message = ""
try:
message = ex.message
except:
pass
message = message + ' \n' + traceback.format_exc()
sys.stderr.write('$ERROR' + str(len(message)) + ':' + message)
sys.stderr.flush()
if __name__ == '__main__':
RopeRefactoring().watch()
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