django-crontab同一主机和用户上的多个项目

序言：当同一个主机上有多个项目并且出现项目名字一致时，进行python manage.py crontab add会出现异常：

    'Run "python manage.py crontab add" again to resolve this issue!' % job_hash
RuntimeError: No job with hash 93db807d32a4da67c4524a4b25422208 found. It seems the crontab is out of sync with your settings.CRONJOBS. Run "python manage.py crontab add" again to resolve this issue!

CRONTAB_COMMENT

• used for marking the added contab-lines for removing, default value includes project name to distinguish multiple projects on the same host and user
• default: ‘django-crontabs for ‘ + CRONTAB_DJANGO_PROJECT_NAME
• 用于标记添加的和要删除的contab行，默认值包括项目名称，以区分同一主机和用户上的多个项目
• 默认值：'django-crontabs for'+ CRONTAB_DJANGO_PROJECT_NAME
  如果两个项目名字一致会导致无法区别
  CRONTAB_COMMENT = '新的自己命名'
  image.png

CRONTAB_LOCK_JOBS

• prevent starting a job if an old instance of the same job is still running
• default: False
• since 0.5.0
• 如果同一作业的旧实例仍在运行，则阻止启动该作业
• 默认值：False
• 自0.5.0

CRONTAB_EXECUTABLE

• path to the crontab executable of your os
• default: ‘/usr/bin/crontab’
• 操作系统的crontab可执行文件的路径
• 默认值：'/ usr / bin / crontab'

CRONTAB_DJANGO_PROJECT_NAME

• the name of your django project, used to build path path to manage.py and to mark the jobs in contrab via comment for later removing
• default is read from DJANGO_SETTINGS_MODULE environment variable
• django项目的名称，用于建立路径manage.py的路径，并通过注释将工作标记为禁忌，以便以后删除
• 默认是从DJANGO_SETTINGS_MODULE环境变量读取的

CRONTAB_DJANGO_MANAGE_PATH

• path to manage.py file (including the manage.py itself, i.e. ‘/home/john/web/manage.py’)
• default is build using DJANGO_PROJECT_NAME
• manage.py文件的路径（包括manage.py本身，即'/home/john/web/manage.py'）
• 默认为使用DJANGO_PROJECT_NAME构建

CRONTAB_DJANGO_SETTINGS_MODULE

• dotted python path to the settings module to run the command with
• default is the common one from the environment variable and will not be overwritten
• since 0.6.0
• 设置模块的点分python路径，以运行命令
• 默认是环境变量中的通用变量，不会被覆盖
• 自0.6.0

CRONTAB_PYTHON_EXECUTABLE

• path to the python interpreter executable used to run the scheduled job
• default uses the interpreter executable used to add the jobs (via ‘python manage.py crontab add’)
• 用于运行计划作业的python解释器可执行文件的路径
• 默认使用用于添加作业的解释器可执行文件（通过“ python manage.py crontab add”）

CRONTAB_COMMAND_PREFIX

• something you wanne do or declare before each job gets executed. A good point for environment variables.

• default: ‘’ (empty string)

• example: ‘STAGE=production’

• 您希望在执行每个作业之前执行或声明的操作。环境变量的一个好地方。

• 默认值：''（空字符串）

• 示例：“ STAGE = production”

CRONTAB_COMMAND_SUFFIX

• something you wanne do after each job was executed.
• default: ‘’ (empty string)
• example: ‘2>&1’
• 每个工作执行完后您想做的事情。
• 默认值：''（空字符串）
• 例如：“ 2>＆1”