nmk_base.common

Python module for nmk-base utility classes.

Classes

TemplateBuilder

Generic builder logic to generate files from templates

MkdirBuilder

Generic builder logic to create directory

ProcessBuilder

Generic builder logic to call a sub-process

Module Contents

class nmk_base.common.TemplateBuilder(model: nmk.model.model.NmkModel)

Bases: nmk.model.builder.NmkTaskBuilder

Generic builder logic to generate files from templates

relative_path(v: str) → str

Make an absolute path as project relative if possible

Parameters:

v – Path string to be converted

Returns:

Project relative path (if possible); unchanged input value otherwise

config_value(config_name: str) → Any

Get config value by name & turn absolute paths to project relative ones (if possible)

Parameters:

config_name – Config item name

Returns:

Config item value

render_template(template: pathlib.Path, kwargs: Dict[str, str]) → str

Render template into a string, with provided keywords and config items

Parameters:

  • template – Path to template file to be rendered

  • kwargs – Map of keywords for templates rendering, indexed by name

Returns:

Rendered template string

Throw:

AssertionError if unknown keyword is referenced in template

build_from_template(template: pathlib.Path, output: pathlib.Path, kwargs: Dict[str, str]) → str

Generate file from template

Parameters:

  • template – Path to template file to be rendered

  • output – Path to output file to be generated

  • kwargs – Map of keywords for templates rendering, indexed by name

Returns:

Rendered template string

Throw:

AssertionError if unknown keyword is referenced in template

build(template: str)

Default build behavior: generate main output file from provided template

Parameters:

template – Path to the Jinja template to use for generation

class nmk_base.common.MkdirBuilder(model: nmk.model.model.NmkModel)

Bases: nmk.model.builder.NmkTaskBuilder

Generic builder logic to create directory

build()

Build logic: create specified directory (main output of the task)

class nmk_base.common.ProcessBuilder(model: nmk.model.model.NmkModel)

Bases: nmk.model.builder.NmkTaskBuilder

Generic builder logic to call a sub-process

build(cmd: str | List[str], verbose: bool = False)

Build logic:

  • call subprocess specified through cmd parameter; process is invoked in project directory

  • depending on the verbose parameter, redirect output to stdout (if True) or to nmk logs (if False)

  • touch the specified output file

Parameters:

  • cmd – process command line; may be a string or a list of parameters

  • verbose – states if the process output shall be displayed in stdout or saved in logs