142 lines
3 KiB
Markdown
142 lines
3 KiB
Markdown
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# Rougail
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## Description
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Rougail is a free full-featured configuration manager library written in python3.
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The configuration is describe in YAML ou XML dictionary files.
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Those dictionaries are converted into [Tiramisu](https://framagit.org/tiramisu/tiramisu) objects and can generates configuration files with template written in [Cheetah](https://cheetahtemplate.org/) or [Jinja](https://jinja.palletsprojects.com/).
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Rougail can be incorporated with other technologies and stacks regardless of whether they’re written in Python or not.
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## Simple example
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Create directories:
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```bash
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# mkdir dict tmpl tmp dest
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```
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### Dictionary
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A dictionary is a services and a variables description file.
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Create the file `dict/dictionary.yml`:
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```yml
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version: '0.10'
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# describe a first service with a single file
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services:
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- service:
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- name: my_service
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file:
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- engine: jinja2
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text: /etc/filename
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# describe a variable my_first_variable
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# and a family with a variable my_second_variable
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variables:
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- variable:
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name: my_first_variable
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value:
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- text: my_value
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- family:
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name: my_family
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variables:
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- variable:
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name: my_second_variable
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type: number
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mandatory: true
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value:
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- text: 1
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```
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### Template
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Create a [Jinja](https://jinja.palletsprojects.com/) template `tmpl/filename`:
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```
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My first value: {{ my_first_variable }}
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My second value: {{ my_second_variable }}
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```
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### Generate template
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#### With default value:
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Here is a python3 example file:
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```python
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from rougail import Rougail, RougailConfig
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from asyncio import run
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async def main():
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RougailConfig['dictionaries_dir'] = ['dict']
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RougailConfig['templates_dir'] = ['tmpl']
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RougailConfig['tmp_dir'] = 'tmp'
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RougailConfig['destinations_dir'] = 'dest'
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rougail = Rougail()
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await rougail.template()
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run(main())
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```
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The destination file is generated:
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```bash
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# cat dest/etc/filename
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My first value: my_value
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My second value: 1
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```
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#### With modified value
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Remove old generated file:
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```bash
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# rm -f dest/etc/filename
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```
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Use [Tiramisu](https://framagit.org/tiramisu/tiramisu) API to change values:
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```python
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from rougail import Rougail, RougailConfig
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from asyncio import run
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async def main():
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RougailConfig['dictionaries_dir'] = ['dict']
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RougailConfig['templates_dir'] = ['tmpl']
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RougailConfig['tmp_dir'] = 'tmp'
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RougailConfig['destinations_dir'] = 'dest'
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rougail = Rougail()
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config = await rougail.get_config()
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await config.option('rougail.my_first_variable').value.set('modified_value')
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await config.option('rougail.my_family.my_second_variable').value.set(2)
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await rougail.template()
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run(main())
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```
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The destination file is generated with new values:
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```bash
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# cat dest/etc/filename
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My first value: modified_value
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My second value: 2
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```
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# Link
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* [Documentation (french)](doc/README.md)
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* [Licence ](LICENSE)
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# Related projects
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* [Tiramisu](https://framagit.org/tiramisu/tiramisu)
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* [Risotto](https://cloud.silique.fr/gitea/risotto/risotto)
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