Use cargo workspaces

api/src/configuration.rs

@@ -0,0 +1,43 @@
+use config::{Config, ConfigError, Environment, File};
+use serde::Deserialize;
+use std::env;
+
+#[derive(Deserialize)]
+pub struct Settings {
+    pub application: ApplicationSettings,
+    pub taskwarrior: TaskwarriorSettings,
+}
+
+#[derive(Deserialize)]
+pub struct ApplicationSettings {
+    pub port: u16,
+    pub log_directive: String,
+}
+
+#[derive(Deserialize)]
+pub struct TaskwarriorSettings {
+    pub data_location: Option<String>,
+    pub taskrc: Option<String>,
+}
+
+impl Settings {
+    pub fn new_from_file(file: Option<String>) -> Result<Self, ConfigError> {
+        let config_file_required = file.is_some();
+        let config_file =
+            file.unwrap_or_else(|| env::var("CONFIG").unwrap_or_else(|_| "dev".into()));
+        let config_path = env::var("CONFIG_PATH").unwrap_or_else(|_| "config".into());
+
+        let config = Config::builder()
+            .add_source(File::with_name(&format!("{}/default", config_path)))
+            .add_source(File::with_name(&format!("{}/local", config_path)).required(false))
+            .add_source(File::with_name(&config_file).required(config_file_required))
+            .add_source(Environment::with_prefix("cs"))
+            .build()?;
+
+        config.try_deserialize()
+    }
+
+    pub fn new() -> Result<Self, ConfigError> {
+        Settings::new_from_file(None)
+    }
+}