Refactor handling of files in SourceCodeEventHandler

This commit is contained in:
Kristóf Tóth 2018-02-06 18:22:37 +01:00
parent c74c00c618
commit 5cc1ab2c8d
2 changed files with 59 additions and 36 deletions

View File

@ -1,58 +1,81 @@
from shutil import copy, rmtree, copytree
from os.path import splitext
from os.path import splitext, isfile, join
from glob import glob
from tfw.util import SupervisorMixin
from tfw.config import LOGIN_APP_DIR
from tfw.event_handler_base import EventHandlerBase
from tfw.config.logs import logging
log = logging.getLogger(__name__)
class FileManager:
def __init__(self, source_directory, working_directory, selected_file=None):
self._sourcedir = source_directory
self._workdir = working_directory
self._reload_files()
self.filename = selected_file or self.files[0]
self.language = map_file_extension_to_language(self.filename)
def select_file(self, filename):
if not filename in self.files:
raise EnvironmentError('No such file in workdir!')
self.filename = filename
self.language = map_file_extension_to_language(self.filename)
@property
def files(self):
return [file for file in glob(self._workdir) if isfile(file)]
@property
def file_contents(self):
with open(self._filepath(self.filename), 'r') as ifile:
return ifile.read()
@file_contents.setter
def file_contents(self, value):
with open(self._filepath(self.filename), 'w') as ofile:
ofile.write(value)
def _filepath(self, filename):
return join(self._workdir, filename)
def _reload_files(self):
rmtree(self._workdir, ignore_errors=True)
copytree(self._sourcedir, self._workdir)
class SourceCodeEventHandler(EventHandlerBase, SupervisorMixin):
def __init__(self, anchor, filename, process_name=None):
super().__init__(anchor)
self.working_directory = LOGIN_APP_DIR
self.filename = filename
self.language = map_file_extension_to_language(filename)
self.filemanager = FileManager('login_projectdir', LOGIN_APP_DIR, selected_file=filename)
self.process_name = process_name or splitext(filename)[0]
self.commands = {
'read': self.read_file,
'write': self.write_file
'read': self.read,
'write': self.write
}
self.file = self.create_initial_state()
# Supervisor needs these to run the login program
copy('source_code_server/server.py', LOGIN_APP_DIR)
copy('source_code_server/users.db', LOGIN_APP_DIR)
def read(self, data_json):
data_json['data'] = {
'filename': self.filemanager.filename,
'content': self.filemanager.file_contents,
'language': self.filemanager.language
}
def write(self, data_json):
self.filemanager.file_contents = data_json['data']['content']
self.restart_process()
def handle_event(self, anchor, data_json):
data = data_json['data']
self.commands[data['command']](data_json)
return data_json
def handle_reset(self, data_json):
self.create_initial_state()
def read_file(self, data_json):
with open(self.file, 'r') as ifile:
content = ifile.read()
data_json['data'] = {
'filename': self.filename,
'content': content,
'language': self.language
}
def write_file(self, data_json):
data = data_json['data']
with open(self.file, 'w') as ofile:
ofile.write(data['content'])
self.restart_process()
def create_initial_state(self):
self.stop_process()
rmtree(self.working_directory, ignore_errors=True)
copytree('source_code_server/', self.working_directory)
file = copy(self.filename, self.working_directory)
self.start_process()
return file
def map_file_extension_to_language(filename):
language_map = {
@ -61,4 +84,4 @@ def map_file_extension_to_language(filename):
'.js': 'javascript'
}
_, extension = splitext(filename)
return language_map[extension]
return language_map[extension]