tron.command_context module

Command Context is how we construct the command line for a command which may have variables that need to be rendered.

class tron.command_context.ActionRunContext(action_run)

Bases: object

Context object that gives us access to data about the action run.

property actionname

property node

class tron.command_context.CommandContext(base=None, next=None)

Bases: object

A CommandContext object is a wrapper around any object which has values to be used to render a command for execution. It looks up values by name.

It’s lookup order is:

base[name], base.__getattr__(name), next[name], next.__getattr__(name)

get(name, default=None)

class tron.command_context.Filler

Bases: object

Filler object for using CommandContext during config parsing. This class is used as a substitute for objects that would be passed to Context objects. This allows the Context objects to be used directly for config validation.

class tron.command_context.JobContext(job)

Bases: object

A class which exposes properties for rendering commands.

property name

property namespace

class tron.command_context.JobRunContext(job_run)

Bases: object

property cleanup_job_status

Provide ‘SUCCESS’ or ‘FAILURE’ to a cleanup action context based on the status of the other steps

property manual

property runid

tron.command_context.build_context(object, parent)

Construct a CommandContext for object. object must have a property ‘context_class’.

tron.command_context.build_filled_context(*context_objects)

Create a CommandContext chain from context_objects, using a Filler object to pass to each CommandContext. Can be used to validate a format string.