trigger

Usage

prism create trigger is used to create and update the triggers YML configuration file.

Usage: prism create trigger [-h] --type TYPE [--full-tb] [-l]

Create a triggers YML file at the TRIGGERS_YML_PATH in `prism_project.py`.

Options:
  -h, --help         show this help message and exit

Subcommand Options:
  --type TYPE        Trigger type. As of now, only acceptable value is `function`

General Options:
  --full-tb          Display the full traceback for errors in the project; default is False
  -l, --log-level    Log level, must be one of `info`, `warn`, `error`, or `debug`. Default is `info`

Here's what prism create trigger does under the hood:

1. Parses the prism_project.py file and gets the TRIGGERS_YML_PATH value. If this value isn't specified, then it defaults to the project directory.

2. It checks to see if TRIGGERS_YML_PATH exists

   • If it doesn't, it creates a file at TRIGGERS_YML_PATH and populates it with a trigger of type --type

   • If it does, it then adds a profile of type --type to the existing file

Example

Here's what the output will look like in Terminal (if there are no errors in the project):

$ prism create trigger --type function
--------------------------------------------------------------------------------
<HH:MM:SS> | INFO  | Running with prism v0.1.9...
<HH:MM:SS> | INFO  | Found project directory at /Users/my_first_project
 
<HH:MM:SS> | INFO  | RUNNING EVENT 'parsing prism_project.py'................................................ [RUN]
<HH:MM:SS> | INFO  | FINISHED EVENT 'parsing prism_project.py'............................................... [DONE in 0.03s]
 
<HH:MM:SS> | INFO  | Setting up triggers...
 
<HH:MM:SS> | INFO  | Done!
--------------------------------------------------------------------------------
$ 

Here's what the triggers.yml file looks like after running the above command:

# triggers.yml

triggers:
  <trigger name here>:
    type: function
    function: <import path to function>  # make sure your project has access to this import path via SYS_PATH_CONF!
    kwargs:  # this is optional!
      arg1: value1

Required arguments

Here are the required arguments you must specify with trigger:

• --type : Trigger type. As of now, only type function is supported.

Optional arguments

Here are the optional arguments you can run with trigger:

• --full-tb : Display full traceback if errors arise at any stage of the pipeline

• --log-level: Log level, one of info, warn, error, or critical.

• --vars: Prism variables as key-value pairs key=value. These overwrite any variable definitions in prism_project.py. All values are read as strings.

• --context : Prism variables as JSON. Cannot co-exist with --vars. These overwrite any variable definitions in prism_project.py.