runway.cfngin.hooks.command module

Command hook.

class runway.cfngin.hooks.command.RunCommandHookArgs[source]

Bases: runway.utils.BaseModel

Hook arguments for run_command.

capture: bool: If enabled, capture the command’s stdout and stderr, and return them in the hook result.

command: Union[str, List[str]]: Command(s) to run.

env: Optional[Dict[str, str]]: Dictionary of environment variable overrides for the command context. Will be merged with the current environment.

ignore_status: bool: Don’t fail the hook if the command returns a non-zero status.

interactive: bool: If enabled, allow the command to interact with stdin. Otherwise, stdin will be set to the null device.

quiet: bool: Redirect the command’s stdout and stderr to the null device, silencing all output. Should not be enabled if capture is also enabled.

__contains__(name: object) → bool

Implement evaluation of ‘in’ conditional.

Parameters: name – The name to check for existence in the model.

__getitem__(name: str) → Any

Implement evaluation of self[name].

Parameters: name – Attribute name to return the value for.
Returns: The value associated with the provided name/attribute name.
Raises: AttributeError – If attribute does not exist on this object.

__init__(**data: Any) → None

Create a new model by parsing and validating input data from keyword arguments.

Raises ValidationError if the input data cannot be parsed to form a valid model.

__iter__() → TupleGenerator: so dict(model) works

__new__(**kwargs)

__pretty__(fmt: Callable[[Any], Any], **kwargs: Any) → Generator[Any, None, None]: Used by devtools (https://python-devtools.helpmanual.io/) to provide a human readable representations of objects

__repr_name__() → unicode: Name of the instance’s class, used in __repr__.

__rich_repr__() → RichReprResult: Get fields for Rich library

__setitem__(name: str, value: Any) → None

Implement item assignment (e.g. self[name] = value).

Parameters

name – Attribute name to set.
value – Value to assign to the attribute.

classmethod __try_update_forward_refs__(**localns: Any) → None: Same as update_forward_refs but will not raise exception when forward references are not defined.

classmethod construct(_fields_set: Optional[SetStr] = None, **values: Any) → Model: Creates a new model setting __dict__ and __fields_set__ from trusted or pre-validated data. Default values are respected, but no other validation is performed. Behaves as if Config.extra = ‘allow’ was set since it adds all passed values

copy(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, update: Optional[DictStrAny] = None, deep: bool = False) → Model

Duplicate a model, optionally choose which fields to include, exclude and change.

Parameters

include – fields to include in new model
exclude – fields to exclude from new model, as with values this takes precedence over include
update – values to change/add in the new model. Note: the data is not validated before creating the new model: you should trust this data
deep – set to True to make a deep copy of the model

Returns

new model instance

dict(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, by_alias: bool = False, skip_defaults: Optional[bool] = None, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False) → DictStrAny: Generate a dictionary representation of the model, optionally specifying which fields to include or exclude.

get(name: str, default: Optional[Any] = None) → Any

Safely get the value of an attribute.

Parameters

name – Attribute name to return the value for.
default – Value to return if attribute is not found.

json(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, by_alias: bool = False, skip_defaults: Optional[bool] = None, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False, encoder: Optional[Callable[[Any], Any]] = None, models_as_dict: bool = True, **dumps_kwargs: Any) → unicode

Generate a JSON representation of the model, include and exclude arguments as per dict().

encoder is an optional function to supply as default to json.dumps(), other arguments as per json.dumps().

classmethod update_forward_refs(**localns: Any) → None: Try to update ForwardRefs on fields based on this Model, globalns and localns.

stdin: Optional[str]: String to send to the stdin of the command. Implicitly disables interactive.

class runway.cfngin.hooks.command.RunCommandResponseTypeDef[source]

Bases: typing_extensions.TypedDict

Response from run_command.

runway.cfngin.hooks.command.run_command(*__args: Any, **kwargs: Any) → runway.cfngin.hooks.command.RunCommandResponseTypeDef[source]

Run a custom command as a hook.

Arguments not parsed by the data model will be forwarded to the subprocess.Popen function. Interesting ones include: cwd and shell.

Examples

pre_deploy:
  command_copy_environment:
    path: runway.cfngin.hooks.command.run_command
    required: true
    enabled: true
    data_key: copy_env
    args:
      command: ['cp', 'environment.template', 'environment']
  command_git_rev_parse:
    path: runway.cfngin.hooks.command.run_command
    required: true
    enabled: true
    data_key: get_git_commit
    args:
      command: ['git', 'rev-parse', 'HEAD']
      cwd: ./my-git-repo
      capture: true
  command_npm_install:
    path: runway.cfngin.hooks.command.run_command
    args:
      command: '`cd $PROJECT_DIR/project; npm install`'
      env:
        PROJECT_DIR: ./my-project
        shell: true