Basic structure

The basic structure of the LFSBuilder tool is shown in the diagram below

lfsbuilder/
├── actions.py
├── builders.py
├── cli.py
├── components.py
├── config.py
├── downloader.py
├── lfsbuilder.py
├── printer.py
├── prueba.py
├── recipes/
│   ├── builders/
│   └── components/
├── requirements.txt
├── templates/
│   ├── script.tpl
│   └── setenv.tpl
├── tests/
│   ├── __init__.py
│   ├── test_actions.py
│   ├── test_config.py
│   ├── test_downloader.py
│   ├── test_tools.py
│   └── test_xmlparser.py
├── tools.py
└── xmlparser.py

The lfsbuilder main directory contains the source code files and the main configuration file. The source code files are listed below:

• actions.py: custom actions for the different command line arguments.
• builders.py: logic to build a components list.
• cli.py: command line interface. Uses Python argparse native library.
• components.py: required logic for building a component, whether it requires compilation or not.
• config.py: main configuration file. Several of the options are available as cli options.
• downloader.py: takes care of downloading books’ XML files and source code of components.
• lfsbuilder.py: main file of the tool. User interacts with it.
• printer.py: defines different functions for printing messages.
• tools.py: implements multiple functions that are used during the build process as read/write files, doing subsitutions in files, execute programs, etc.
• xmlparser.py: logic to read books’ XML files and write each constructor’s commands file.