Minimal mytilde implementation

Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "mytilde"
+version = "0.1.0"
+authors = ["southerntofu <southerntofu@thunix.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde_json = "1.0"
+serde = { version = "1.0", features = ["serde_derive"] }
+
+[lib]
+name = "mytilde"
+path = "src/lib.rs"
+
+[[bin]]
+name = "mytilde"
+path = "src/main.rs"
+

src/lib.rs

@@ -1,29 +1,65 @@
+use serde_json::{Value, Map};
+use serde::{Deserialize, Serialize};
+use std::convert::From;
+
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 enum Aliases {
     One(String),
     More(Vec<String>),
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 enum Domain {
-    Name(string),
+    Name(String),
     Config(DomainConfig),
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 struct DomainConfig {
     hostname: String,
     alias: Option<Aliases>,
     web: Option<Web>,
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 enum Web {
     Template(String),
     Config(WebConfig)
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 struct WebConfig {
     template: Option<String>,
     vars: Map<String,Value>,
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 struct MyTilde {
     domains: Vec<Domain>,
 }
+
+#[derive(Debug)]
+enum Error {
+    File(std::io::Error),
+    Json(serde_json::Error),
+}
+
+impl From<std::io::Error> for Error {
+    fn from(e: std::io::Error) -> Error {
+        Error::File(e)
+    }
+}
+
+impl From<serde_json::Error> for Error {
+    fn from(e: serde_json::Error) -> Error {
+        Error::Json(e)
+    }
+}
+
+impl MyTilde {
+    fn from_file<P: AsRef<std::path::Path>>(path: P) -> Result<MyTilde,Error> {
+        let content = std::fs::read_to_string(path)?;
+        let json: Value = serde_json::from_str(&content)?;
+        Ok(serde_json::from_value(json)?)
+    }
+}

src/main.rs

@@ -0,0 +1,5 @@
+use mytilde;
+
+fn main() {
+    println!("Echo world!");
+}