240 lines
7.7 KiB
Python
240 lines
7.7 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#from runner.celery import app
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import subprocess
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import os
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import sys
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import shutil
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import json
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import importlib.machinery
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WORK_DIR = "/data/run/jobs"
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OER_FORMATS_PATH = "/data/oer/exercise-formats/"
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def load_handler(path):
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handler = {'name': None, 'loader': None, 'mod': None}
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#print(path, file=sys.stderr)
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for root, dirs, files in os.walk(path):
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#print(dirs, file=sys.stderr)
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#print(files, file=sys.stderr)
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if 'controller.py' in files:
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print("INFO: controller.py present for '%s'!" % path, file=sys.stderr)
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try:
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#name = root.replace(path, '')
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name = path
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loader = importlib.machinery.SourceFileLoader(name, root + '/controller.py')
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mod = loader.load_module()
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handler = {'name': name, 'loader': loader, 'mod': mod}
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except:
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print("WARNING: Loading controller failed for '%s'!" % path, file=sys.stderr)
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else:
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print("INFO: No controller found for '%s'!" % path, file=sys.stderr)
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return handler
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class Job(object):
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"""
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The job class for tasks implements some default behaivior for every
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format and tries to call special event handlers when they are defined
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for the formats or exercises.
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The lifecycle of a job in its current form is as follows:
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1) class initialisation
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2) import_handlers try to find handler by looking for controller.py in format and exercise
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3) unpack
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4) build: compile, default by calling make
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5) execute: run the code
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6) grade: run provided test scripts
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7) response: provide output, msg and grade
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"""
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def __init__(self, job):
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#print("Job.__init__()", file=sys.stderr)
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self.data = job
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self.work_path = WORK_DIR + '/' + str(job['_id']) + '/'
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self.handler_format = {'name': None, 'loader': None, 'mod': None}
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self.handler_exercise = {'name': None, 'loader': None, 'mod': None}
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self.build_result = None
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self.execute_result = None
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self.grade_result = 'FAIL'
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self.response_data = {}
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def import_handlers(self):
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print("Job.init_handlers()", file=sys.stderr)
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# find exercise specific and default handler for exercise format
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self.handler_format = load_handler("%s/%s" % (OER_FORMATS_PATH, self.data['type']))
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self.handler_exercise = load_handler(self.data['source_path'])
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if self.handler_format != None:
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print("INFO: Format handler found ;", file=sys.stderr)
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if self.handler_exercise != None:
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print("INFO: Exercise handlers found ;", file=sys.stderr)
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def extract(self):
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#print("Job.extract()", file=sys.stderr)
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# creates workdir and files
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print(self.data['source_path'], file=sys.stderr)
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print(self.work_path, file=sys.stderr)
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#os.makedirs(self.work_path)
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src = self.data['source_path']
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dst = self.work_path
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shutil.copytree(src, dst)
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self.sourcefile = self.work_path + 'program.c'
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self.programfile = self.work_path + 'program'
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# overwrite default with user submission
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source = open(self.sourcefile, 'w')
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source.write(self.data['solution'])
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source.close()
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def build(self):
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print("Job.build()", file=sys.stderr)
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# Try to call type specific handler or fallback to default action
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if 'build' in dir(self.handler_exercise['mod']):
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self.build_result = self.handler_exercise['mod'].build(self)
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elif 'build' in dir(self.handler_format['mod']):
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self.build_result = self.handler_format['mod'].build(self)
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else:
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print("INFO: build() handler not found!", file=sys.stderr)
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self.build_result = False
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def execute(self):
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print("Job.execute()", file=sys.stderr)
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# Try to call type specific handler or fallback to default action
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if 'execute' in dir(self.handler_exercise['mod']):
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self.execute_result = self.handler_exercise['mod'].execute(self)
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elif 'execute' in dir(self.handler_format['mod']):
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self.execute_result = self.handler_format['mod'].execute(self)
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else:
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print("INFO: execute() handler not found!", file=sys.stderr)
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self.execute_result = False
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def grade(self):
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print("Job.grade()", file=sys.stderr)
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# Try to call type specific handler or fallback to default action
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if 'grade' in dir(self.handler_exercise['mod']):
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print("Job.grade() exercise", file=sys.stderr)
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self.grade_result = self.handler_exercise['mod'].grade(self)
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elif 'grade' in dir(self.handler_format['mod']):
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print("Job.grade() format", file=sys.stderr)
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self.grade_result = self.handler_format['mod'].grade(self)
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else:
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print("INFO: grade() handler not found!", file=sys.stderr)
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#self.grade_result = 'PASS' # default to PASS so the course does not break?
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self.grade_result = 'FAIL' # default to FAIL so student can not proceed in case there was a minor error with the course
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def response(self):
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print("Job.response()", file=sys.stderr)
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result = None
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# Try to call type specific handler or fallback to default action
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if 'response' in dir(self.handler_exercise['mod']):
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print("Job.response() exercise", file=sys.stderr)
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print(self.handler_exercise, file=sys.stderr)
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return self.handler_exercise['mod'].response(self)
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elif 'response' in dir(self.handler_format['mod']):
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print("Job.response() format", file=sys.stderr)
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print(self.handler_format, file=sys.stderr)
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return self.handler_format['mod'].response(self)
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else:
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print("INFO: response() handler not found!", file=sys.stderr)
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output = ""
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grade = self.grade_result
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msg = ""
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data = self.response_data
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return {'output': output, 'grade': grade, 'msg': msg, 'data': data}
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def clean(self):
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print("Job.cleanup()", file=sys.stderr)
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shutil.rmtree(self.work_path)
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pass
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def store_result(self):
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# into file
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self.jobfile = self.work_path + 'job.json'
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# overwrite default with user submission
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fp = open(self.jobfile, 'w')
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json.dump({"job": self.data, "response": self.response_data}, fp)
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fp.close()
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# into mongodb
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def get_file_content(self, filename):
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try:
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with open(self.work_path + '/' + filename, 'r') as f:
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content = f.read().strip()
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return content
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except:
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print('WARNING: Failed to read "%s", serving empty string.' % (filename), file=sys.stderr)
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return ""
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#@app.task(time_limit=20)
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#def timelimited_task():
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# try:
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# return do_work()
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# except SoftTimeLimitExceeded:
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# cleanup_in_a_hurry()
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#
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#@app.task
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#def compile():
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# return True
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#@app.task(bind=True)
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def compile_and_run(id, data):
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#print(data, file=sys.stderr)
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#print(data['type'], file=sys.stderr)
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#print(data['action'], file=sys.stderr)
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#print(data['source_path'], file=sys.stderr)
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data['_id'] = id
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# create job object and call the different handlers
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j = Job(data)
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j.import_handlers()
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if data['action'] not in ["quiz"]:
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j.extract()
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j.build()
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if data['action'] in ["test", "execute", "run"]:
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j.execute()
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if data['action'] in ["grade", "quiz"]:
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j.grade()
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#print("Result prepare")
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ret = j.response()
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j.response_data = ret
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j.store_result()
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#print("Result sent!")
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return ret
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