Function initialize_plugins_exact

crates/core/src/plugin.rs:1042–1082

(config: PluginConfig)

/// is removed before the new configuration is activated.
#[doc(hidden)]
pub async fn initialize_plugins_exact(config: PluginConfig) -> Result<ConfigReport> {
    let report = validate_plugin_config(&config);
    if report.has_errors() {
        return Err(PluginError::InvalidConfig(join_error_messages(&report)));
    }

    let previous = {
        let mut guard = ACTIVE_PLUGIN_CONFIGURATION.lock().map_err(|err| {
            PluginError::Internal(format!("active plugin configuration lock poisoned: {err}"))
        })?;
        guard.take()
    };

    if let Some(mut previous_state) = previous {
        rollback_registrations(&mut previous_state.registrations);
        match initialize_plugin_components(&config).await {
            Ok(registrations) => {
                store_active_plugin_configuration(config, report.clone(), registrations)?;
                Ok(report)
            }
            Err(err) => match initialize_plugin_components(&previous_state.config).await {
                Ok(registrations) => {
                    let previous_report = validate_plugin_config(&previous_state.config);
                    store_active_plugin_configuration(
                        previous_state.config,
                        previous_report,
                        registrations,
                    )?;
                    Err(err)
                }
                Err(restore_err) => Err(PluginError::RegistrationFailed(format!(
                    "{err}; previous plugin configuration could not be restored: {restore_err}"
                ))),
            },
        }
    } else {
        let registrations = initialize_plugin_components(&config).await?;
        store_active_plugin_configuration(config, report.clone(), registrations)?;
        Ok(report)
    }
}

/// Validates and activates `config` layered on top of the discovered
/// `plugins.toml` configuration, so a direct integration sees the same file