actions.rs
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	// -------------------------------------------------------------
	// Alkane :: Actions
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	// Project: Nasqueron
	// License: BSD-2-Clause
	// -------------------------------------------------------------

	use crate::command::ServerArgs;
	use crate::config::AlkaneConfig;
	use crate::db::Database;
	use crate::deploy::AlkaneDeployError;
	use crate::deploy::DeployError;
	use crate::runner::store::RecipesStore;
	use crate::runner::RecipeStatus;
	use crate::server::kernel::run;

	// -------------------------------------------------------------
	// Actions only available in CLI
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	pub fn serve(args: ServerArgs, config: AlkaneConfig) {
	run(config, &args.mounting_point);
	}

	// -------------------------------------------------------------
	// Actions available both for CLI and HTTP
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	fn run_deployment_action(
	site_name: &str,
	context: Option<String>,
	config: &AlkaneConfig,
	action: &str,
	) -> Result<RecipeStatus, DeployError> {
	let db = Database::from_config(config).ok_or_else(\|\| {
	let error = AlkaneDeployError::new("Can't initialize database", site_name, action);
	DeployError::Alkane(error)
	})?;

	let recipes = RecipesStore::from_config(config).ok_or_else(\|\| {
	let error = AlkaneDeployError::new("Can't initialize recipes store", site_name, action);
	DeployError::Alkane(error)
	})?;

	let site = config
	.get_site(site_name, context)
	.ok_or_else(\|\| {
	let error = AlkaneDeployError::new("Can't resolve site path", site_name, action);
	DeployError::Alkane(error)
	})?;

	let status = recipes.run_recipe(&site, action);

	if action == "init" && status == RecipeStatus::Success {
	db.set_initialized(&site.name);
	}

	Ok(status)
	}

	pub fn initialize(
	site_name: &str,
	context: Option<String>,
	config: &AlkaneConfig,
	) -> Result<RecipeStatus, DeployError> {
	run_deployment_action(site_name, context, config, "init")
	}

	pub fn update(
	site_name: &str,
	context: Option<String>,
	config: &AlkaneConfig,
	) -> Result<RecipeStatus, DeployError> {
	run_deployment_action(site_name, context, config, "update")
	}

	pub fn deploy(
	site_name: &str,
	context: Option<String>,
	config: &AlkaneConfig,
	) -> Result<RecipeStatus, DeployError> {
	if is_present(site_name, config) {
	run_deployment_action(site_name, context, config, "update")
	} else {
	run_deployment_action(site_name, context, config, "init")
	}
	}

	pub fn is_present(site_name: &str, config: &AlkaneConfig) -> bool {
	match Database::from_config(&config) {
	None => false,
	Some(db) => db.is_initialized(site_name),
	}
	}

	// -------------------------------------------------------------
	// Tests
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	#[cfg(test)]
	mod tests {
	use super::*;

	#[test]
	pub fn test_is_present() {
	let config = AlkaneConfig::load().unwrap();

	assert_eq!(true, is_present("foo.acme.tld", &config));
	assert_eq!(false, is_present("notexisting.acme.tld", &config));
	}
	}

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