Changes

command/Cargo.toml

@@ -9,5 +9,4 @@ edition = "2021"
 cliclack = "0.1.6"
 local-ip-address = "0.5.6"
 serde = { version = "1.0.193", features = ["derive"] }
-struct_iterable = "0.1.1"
 toml = "0.8.8"

command/src/main.rs

@@ -1,3 +1,5 @@
+#![warn(clippy::pedantic)]
+
 use cliclack::{
     confirm, input, intro,
     log::{self, info},
@@ -6,11 +8,10 @@ use cliclack::{
 use local_ip_address::local_ip;
 use serde::{Deserialize, Serialize};
 use std::{
-    collections::HashMap,
+    format,
     io::Error,
     path::{Path, PathBuf},
 };
-use struct_iterable::Iterable;
 
 const BANNER: &str = r"
    |\_    _ _      _
@@ -21,7 +22,7 @@ const BANNER: &str = r"
                                                    |___/
 ";
 
-#[derive(Serialize, Deserialize, Iterable, Debug)]
+#[derive(Serialize, Deserialize, Debug, Default)]
 struct Config {
     compose_profiles: Option<Vec<String>>,
     setup_database: Option<bool>,
@@ -36,78 +37,70 @@ struct Config {
     pairing_port: Option<u16>,
 }
 
+macro_rules! to_env {
+    ($name_opt:ident) => {
+        $name_opt
+            .clone()
+            .map(|v| format!("{}={}", stringify!($name_opt).to_uppercase(), v.to_string()))
+            .unwrap_or_default()
+    };
+    ($key:ident, $value:expr) => {
+        format!("{}={}", stringify!($key).to_uppercase(), $value)
+    };
+}
+
 impl Config {
     const SETTINGS_TOML: &'static str = "settings.toml";
     const SETTINGS_ENV: &'static str = "settings.env";
 
-    fn default() -> Self {
-        Self {
-            compose_profiles: None,
-            setup_database: None,
-            enable_monitoring: None,
-            su_password: None,
-            password: None,
-            lila_domain: None,
-            lila_url: None,
-            phone_ip: None,
-            connection_port: None,
-            pairing_code: None,
-            pairing_port: None,
-        }
-    }
-
     fn load() -> Self {
-        if !Path::new(Self::SETTINGS_TOML).exists() {
-            return Self::default();
-        }
-
-        let toml = std::fs::read_to_string(Self::SETTINGS_TOML).unwrap();
-        toml::from_str(&toml).unwrap()
+        std::fs::read_to_string(Self::SETTINGS_TOML).map_or_else(
+            |_| Self::default(),
+            |contents| toml::from_str(&contents).unwrap(),
+        )
     }
 
-    fn save(&self) {
-        std::fs::write(Self::SETTINGS_TOML, self.to_toml()).unwrap();
-        std::fs::write(Self::SETTINGS_ENV, self.to_env()).unwrap();
+    fn save(&self) -> std::io::Result<()> {
+        std::fs::write(Self::SETTINGS_TOML, self.to_toml())?;
+        std::fs::write(Self::SETTINGS_ENV, self.to_env())
     }
 
     fn to_toml(&self) -> String {
         toml::to_string(&self).unwrap()
     }
 
     fn to_env(&self) -> String {
-        let mut contents: HashMap<&str, String> = HashMap::new();
-
-        for (key, value) in self.iter() {
-            if let Some(string_opt) = value.downcast_ref::<Option<String>>() {
-                if let Some(string_opt) = string_opt {
-                    contents.insert(key, string_opt.to_string());
-                }
-            } else if let Some(bool_opt) = value.downcast_ref::<Option<bool>>() {
-                if let Some(bool_opt) = bool_opt {
-                    contents.insert(key, bool_opt.to_string());
-                }
-            } else if let Some(u16_opt) = value.downcast_ref::<Option<u16>>() {
-                if let Some(u16_opt) = u16_opt {
-                    contents.insert(key, u16_opt.to_string());
-                }
-            } else if let Some(u32_opt) = value.downcast_ref::<Option<u32>>() {
-                if let Some(u32_opt) = u32_opt {
-                    contents.insert(key, u32_opt.to_string());
-                }
-            } else if let Some(vec_string) = value.downcast_ref::<Option<Vec<String>>>() {
-                if let Some(vec_string) = vec_string {
-                    contents.insert(key, vec_string.join(","));
-                }
-            } else {
-                panic!("Unsupported type: Could not write [{key}] to env");
-            }
-        }
-
-        contents
-            .iter()
-            .map(|(k, v)| format!("{}={}", k.to_uppercase(), v))
-            .collect::<Vec<String>>()
-            .join("\n")
+        let Self {
+            compose_profiles,
+            setup_database,
+            enable_monitoring,
+            su_password,
+            password,
+            lila_domain,
+            lila_url,
+            phone_ip,
+            connection_port,
+            pairing_code,
+            pairing_port,
+        } = self;
+        let compose_profiles_string = compose_profiles
+            .clone()
+            .map(|v| v.join(","))
+            .unwrap_or_default();
+        format!(
+            "{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n",
+            to_env!(compose_profiles, compose_profiles_string),
+            to_env!(setup_database),
+            to_env!(enable_monitoring),
+            to_env!(su_password),
+            to_env!(password),
+            to_env!(lila_domain),
+            to_env!(lila_url),
+            to_env!(phone_ip),
+            to_env!(connection_port),
+            to_env!(pairing_code),
+            to_env!(pairing_port)
+        )
     }
 }
 
@@ -179,6 +172,16 @@ fn main() -> std::io::Result<()> {
     }
 }
 
+fn pwd_input(user_type: &str) -> std::io::Result<String> {
+    input(format!(
+        "Choose a password for {user_type} users (blank for 'password')"
+    ))
+    .placeholder("password")
+    .default_input("password")
+    .required(false)
+    .interact()
+}
+
 fn setup(mut config: Config) -> std::io::Result<()> {
     intro(BANNER)?;
 
@@ -190,18 +193,7 @@ fn setup(mut config: Config) -> std::io::Result<()> {
             .interact()?;
 
     let (su_password, password) = if setup_database {
-        (
-            input("Choose a password for admin users (blank for 'password')")
-                .placeholder("password")
-                .default_input("password")
-                .required(false)
-                .interact()?,
-            input("Choose a password for regular users (blank for 'password')")
-                .placeholder("password")
-                .default_input("password")
-                .required(false)
-                .interact()?,
-        )
+        (pwd_input("admin")?, pwd_input("regular")?)
     } else {
         (String::new(), String::new())
     };
@@ -229,7 +221,7 @@ fn setup(mut config: Config) -> std::io::Result<()> {
         config.lila_url = Some(gitpod.url);
     }
 
-    config.save();
+    config.save()?;
 
     create_placeholder_dirs();
 
@@ -481,7 +473,7 @@ fn hostname(mut config: Config) -> std::io::Result<()> {
 
     config.lila_domain = Some(format!("{hostname}:8080"));
     config.lila_url = Some(format!("http://{hostname}:8080"));
-    config.save();
+    config.save()?;
 
     outro(format!("✔ Local Lichess URL set to http://{hostname}:8080"))
 }
@@ -515,7 +507,7 @@ fn mobile_setup(mut config: Config) -> std::io::Result<()> {
     config.connection_port = Some(connection_port);
     config.pairing_code = Some(pairing_code);
     config.pairing_port = Some(pairing_port);
-    config.save();
+    config.save()?;
 
     outro("Pairing and connecting to phone...")
 }
@@ -547,6 +539,7 @@ fn welcome() -> std::io::Result<()> {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use std::collections::HashMap;
 
     #[test]
     fn test_repository() {
@@ -558,6 +551,12 @@ mod tests {
         assert_eq!(repo.clone_path(), Path::new("repos/lila"));
     }
 
+    #[test]
+    fn test_to_env_proc() {
+        let foo = Some("test");
+        assert_eq!(to_env!(foo), "FOO=test");
+    }
+
     #[test]
     fn test_set_env_vars_from_struct() {
         let contents = Config {
@@ -577,8 +576,7 @@ mod tests {
 
         let vars = contents
             .split("\n")
-            .map(|line| line.split("="))
-            .map(|mut parts| (parts.next().unwrap(), parts.next().unwrap()))
+            .flat_map(|line| line.split_once("="))
             .collect::<HashMap<&str, &str>>();
 
         assert_eq!(vars["COMPOSE_PROFILES"], "foo,bar");