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Add support for LQOS_DIRECTORY environment variable overriding the

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saved value when loading the config file.

If LQOS_DIRECTORY is not set, nothing happens.

If LQOS_DIRECTORY is set---for example with:

```
export LQOS_DIRECTORY="/opt/libreqos2"
```

Then the directory is overridden in the loaded configuration from
the environment variable.

This is designed to make it easier to have multiple instances---for
example for building configuration and then distributing it.
This commit is contained in:
Herbert Wolverson 2024-05-06 15:59:32 -05:00
parent 78c2388501
commit 297bdcd58e
1 changed files with 8 additions and 1 deletions
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9
src/rust/lqos_config/src/etc/mod.rs
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@ -43,8 +43,15 @@ pub fn load_config() -> Result<Config, LibreQoSConfigError> {
config_result
)));
}
let mut final_config = config_result.unwrap(); // We know it's good at this point
// Check for environment variable overrides
if let Ok(lqos_dir) = std::env::var("LQOS_DIRECTORY") {
final_config.lqos_directory = lqos_dir;
}
log::info!("Set cached version of config file");
*lock = Some(config_result.unwrap());
*lock = Some(final_config);
}
Ok(lock.as_ref().unwrap().clone())