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manage.py
executable file
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manage.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os
COV = None
# 如果环境变量中有FLASK_COVERAGE,启动代码覆盖检测
if os.environ.get('FLASK_COVERAGE'):
import coverage
# 启动覆盖检测引擎
# branch=True 开启分支覆盖分析,
# 除了跟踪哪行代码已经执行外,还要检查每个条件语句的True分支和False分支是否都执行了
# include选项用来限制程序包中文件的分析范围,只对这些文件中的代码进行覆盖检测
COV = coverage.coverage(branch=True, include='app/*')
COV.start()
from app import create_app, db
from flask_script import Shell, Manager
from app.models import User, Blog, Tag, Category
from flask_migrate import Migrate, MigrateCommand
# 创建程序实例
app = create_app(os.getenv('BLEXT_CONFIG') or 'default')
# 初始化 Manager 对象(用于命令行解析)
manager = Manager(app)
# 初始化 Migrate 对象(用于数据库迁移)
migrate = Migrate(app, db)
# shell 命令的回调函数,用于自动导入特定对象(而不用每次执行 shell 命令时去初始化)
def make_shell_context():
return dict(app=app, db=db, User=User, Blog=Blog, Category=Category, Tag=Tag)
# 添加命令行 shell 命令
manager.add_command('shell', Shell(make_context=make_shell_context))
# 添加命令行 db 命令
manager.add_command('db', MigrateCommand)
# 为 test 命令添加可选项 --coverage (flask-script会自动根据传入参数名确定选项名),
# 并据此向函数中传入True或False
@manager.command
def test(coverage=False):
"""Run the unit tests."""
if coverage and not os.environ.get('FLASK_COVERAGE'):
import sys
os.environ['FLASK_COVERAGE'] = '1'
# 重启脚本(因为收到coverage参数时全局作用域中的代码已经执行了,为了检测的准确性)
os.execvp(sys.executable, [sys.executable] + sys.argv)
import unittest
tests = unittest.TestLoader().discover('tests')
unittest.TextTestRunner(verbosity=2).run(tests)
if COV:
COV.stop()
COV.save()
print('Coverage Summary:')
COV.report()
basedir = os.path.abspath(os.path.dirname(__file__))
covdir = os.path.join(basedir, 'tmp/coverage')
COV.html_report(directory=covdir)
print('HTML version: file://%s/index.html' % covdir)
# 在请求分析器的监视下运行程序
@manager.command
def profile(length=25, profile_dir=None):
"""Start the application under the code profiler."""
from werkzeug.contrib.profiler import ProfilerMiddleware
app.wsgi_app = ProfilerMiddleware(app.wsgi_app, restrictions=[length],
profile_dir=profile_dir)
app.run()
# 程序部署命令
@manager.command
def deploy():
"""Run deployment tasks."""
from flask_migrate import upgrade
# migrate database to latest revision
upgrade()
if __name__ == '__main__':
manager.run()