rougail-tutorials/README.md

- [Summary](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/branch/1.1/README.md)
- [[tutorial v1.1_003] Set a default value](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_003/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_010~1..v1.1_010))

# [tutorial v1.1_010] A variable with a list of possible values

[Read the tutorial "A variable with a list of possible values" in the documentation](https://pedago.gwenaelremond.fr/bribes/rougail/tutorial/choice.html#a-variable-with-a-list-of-possible-values)


## Screenshot
<img src="firefox.png" width=50% height=50% alt="Firefox Proxy setting"/>


## Clone and install

To test this tutorial, you need to download this repository and install Rougail:

```shell
git clone -b 1.1 https://forge.cloud.silique.fr/stove/rougail-tutorials.git
cd rougail-tutorials
python -m venv venv_rougail
. venv_rougail/bin/activate
pip install rougail-cli rougail-output-exporter rougail-output-doc rougail-user-data-yaml
```

Then switch to the tutorial page:

```shell
git switch --detach v1.1_010
```

## Structure

<p>
<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_010/./">.</a><br/>
	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_010/./firefox/">firefox</a><br/>
	    └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_010/./firefox/00-proxy.yml">00-proxy.yml</a><br/>
<br/><br/></p>

Contents of the firefox/00-proxy.yml file

```yml
%YAML 1.2
---
version: 1.1

proxy_mode:
  description: Configure Proxy Access to the Internet
  choices:
    - No proxy
    - Auto-detect proxy settings for this network
    - Use system proxy settings
    - Manual proxy configuration
    - Automatic proxy configuration URL
  default: No proxy
...

```

***
### Let's generate the documentation

```shell
rougail -m firefox/ -o doc
```
[View the documentation file](DOCUMENTATION.md)


***
### Let's generate the changelog

```shell
rougail -m firefox/ -o doc --doc.contents changelog --doc.changelog.previous_json_file previous.yml
```
[View the changelog file](CHANGELOG.md)

***
## User datas

### Example 1

#### config/01/config.yml


```yml
---
```

***
#### Output

```shell
rougail -m firefox/ -u yaml -yf config/01/config.yml
```
> [!NOTE]
>
> **Caption:**
> - Variable
> - <span style="color: #B8860B">Default value</span>

Variables:
- :notebook: proxy_mode (Configure Proxy Access to the Internet): <span style="color: #B8860B">No proxy</span>

***
### Example 2

#### config/02/config.yml


```yml
---
proxy_mode: No proxy
```

***
#### Output

```shell
rougail -m firefox/ -u yaml -yf config/02/config.yml
```
> [!NOTE]
>
> **Caption:**
> - Variable
> - <span style="color: #006400">Modified value</span>
> - (:hourglass_flowing_sand: Original default value)

Variables:
- :notebook: proxy_mode (Configure Proxy Access to the Internet): <span style="color: #006400">No proxy</span> ← loaded from the YAML file "config/02/config.yml" (:hourglass_flowing_sand: No proxy)

***
### Example 3

#### config/03/config.yml


```yml
---
proxy_mode: Manual proxy configuration
```

***
#### Output

```shell
rougail -m firefox/ -u yaml -yf config/03/config.yml
```
> [!NOTE]
>
> **Caption:**
> - Variable
> - <span style="color: #006400">Modified value</span>
> - (:hourglass_flowing_sand: Original default value)

Variables:
- :notebook: proxy_mode (Configure Proxy Access to the Internet): <span style="color: #006400">Manual proxy configuration</span> ← loaded from the YAML file "config/03/config.yml" (:hourglass_flowing_sand: No proxy)

***
### Example 4

#### config/04/config.yml


```yml
---
proxy_mode: foo
```

***
#### Output

```shell
rougail -m firefox/ -u yaml -yf config/04/config.yml
```
> [!WARNING]
> 
> - proxy_mode (Configure Proxy Access to the Internet): :bell: <span style="color: #EFBF04">the value "foo" is an invalid choice, only "Auto-detect proxy settings for this network", "Automatic proxy configuration URL", "Manual proxy configuration", "No proxy" and "Use system proxy settings" are allowed, it will be ignored when loading from the YAML file "config/04/config.yml"</span>

> [!NOTE]
>
> **Caption:**
> - Variable
> - <span style="color: #B8860B">Default value</span>

Variables:
- :notebook: proxy_mode (Configure Proxy Access to the Internet): <span style="color: #B8860B">No proxy</span>

***
#### Output when invalid user data is an error

```shell
rougail -m firefox/ -u yaml -yf config/04/config.yml --cli.invalid_user_data_error
```
> [!CAUTION]
> 
> - proxy_mode (Configure Proxy Access to the Internet): :stop_sign: <span style="color: #C23636">the value "foo" is an invalid choice, only "Auto-detect proxy settings for this network", "Automatic proxy configuration URL", "Manual proxy configuration", "No proxy" and "Use system proxy settings" are allowed, it has been loading from the YAML file "config/04/config.yml"</span>

***


- [[tutorial v1.1_020] Creating a new family](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_020/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_020~1..v1.1_020))