Automatically create a default file config if it doesn't exist.

diff --git a/Cargo.lock b/Cargo.lock
index 0542cca..b01900d 100644 (file)
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -81,7 +81,7 @@ dependencies = [
  "h2 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -104,7 +104,7 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -260,9 +260,9 @@ name = "actix-web-codegen"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -307,9 +307,9 @@ version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "askama_shared 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -327,10 +327,10 @@ dependencies = [
  "nom 5.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.115 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -339,9 +339,9 @@ name = "async-trait"
 version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -481,9 +481,9 @@ name = "derive_more"
 version = "0.99.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -510,9 +510,9 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -529,9 +529,9 @@ name = "failure_derive"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -627,9 +627,9 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -698,7 +698,7 @@ dependencies = [
  "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -707,11 +707,8 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "heck"
@@ -771,11 +768,11 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.5.2"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashbrown 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hashbrown 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1085,9 +1082,9 @@ name = "pin-project-internal"
 version = "0.4.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1122,7 +1119,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.19"
+version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1138,7 +1135,7 @@ name = "quote"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1264,9 +1261,9 @@ name = "serde_derive"
 version = "1.0.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1327,10 +1324,10 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.39"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1340,9 +1337,9 @@ name = "synstructure"
 version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1551,9 +1548,9 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1709,7 +1706,7 @@ dependencies = [
 "checksum getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 "checksum gimli 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
 "checksum h2 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "993f9e0baeed60001cf565546b0d3dbe6a6ad23f2bd31644a133c641eccf6d53"
-"checksum hashbrown 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
+"checksum hashbrown 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "00d63df3d41950fb462ed38308eea019113ad1508da725bbedcd0fa5a85ef5f7"
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 "checksum hermit-abi 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "3deed196b6e7f9e44a2ae8d94225d80302d81208b1bb673fd21fe634645c85a9"
 "checksum hostname 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3c731c3e10504cc8ed35cfe2f1db4c9274c3d35fa486e3b31df46f068ef3e867"
@@ -1717,7 +1714,7 @@ dependencies = [
 "checksum httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
 "checksum humansize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b6cab2627acfc432780848602f3f558f7e9dd427352224b0d9324025796d2a5e"
 "checksum idna 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
-"checksum indexmap 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4e47a3566dd4fd4eec714ae6ceabdee0caec795be835c223d92c2d40f1e8cf1c"
+"checksum indexmap 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2"
 "checksum instant 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "5b141fdc7836c525d4d594027d318c84161ca17aaf8113ab1f81ab93ae897485"
 "checksum iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
 "checksum ipconfig 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7e2f18aece9709094573a9f24f483c4f65caa4298e2f7ae1b71cc65d853fad7"
@@ -1762,7 +1759,7 @@ dependencies = [
 "checksum ppv-lite86 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c36fa947111f5c62a733b652544dd0016a43ce89619538a8ef92724a6f501a20"
 "checksum proc-macro-hack 0.5.18 (registry+https://github.com/rust-lang/crates.io-index)" = "99c605b9a0adc77b7211c6b1f722dcb613d68d66859a44f3d485a6da332b0598"
 "checksum proc-macro-nested 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "eba180dafb9038b050a4c280019bbedf9f2467b61e5d892dcad585bb57aadc5a"
-"checksum proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)" = "04f5f085b5d71e2188cb8271e5da0161ad52c3f227a661a3c135fdf28e258b12"
+"checksum proc-macro2 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)" = "175c513d55719db99da20232b06cda8bab6b83ec2d04e3283edf0213c37c1a29"
 "checksum quick-error 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 "checksum quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 "checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
@@ -1786,7 +1783,7 @@ dependencies = [
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fbee7696b84bbf3d89a1c2eccff0850e3047ed46bfcd2e92c29a2d074d57e252"
 "checksum socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)" = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
-"checksum syn 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)" = "891d8d6567fe7c7f8835a3a98af4208f3846fba258c1bc3c31d6e506239f11f9"
+"checksum syn 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "963f7d3cc59b59b9325165add223142bbf1df27655d07789f109896d353d8350"
 "checksum synstructure 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
 "checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 "checksum threadpool 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d050e60b33d41c19108b32cea32164033a9013fe3b46cbd4457559bfbf77afaa"

diff --git a/src/main.rs b/src/main.rs
index f385a0e..af1bd95 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,16 +1,16 @@
-extern crate actix_web;
+
 extern crate listenfd;
 extern crate askama;
 extern crate percent_encoding;
 
 use listenfd::ListenFd;
 use actix_files as fs;
-use actix_web::{web, middleware, App, HttpServer, HttpResponse, web::Query};
+use actix_web::{ web, middleware, App, HttpServer, HttpResponse, web::Query };
 use askama::Template;
 
-use std::{fs::File, path::Path, env::args, io::prelude::*};
-use ron::de::from_reader;
-use serde::Deserialize;
+use std::{ fs::File, path::Path, env::args, io::prelude::* };
+use ron::{ de::from_reader, ser::{ to_string_pretty, PrettyConfig } };
+use serde::{ Deserialize, Serialize };
 
 use itertools::Itertools;
 
@@ -45,17 +45,31 @@ fn main_page(query: Query<Request>, key: &str) -> HttpResponse {
     HttpResponse::Ok().content_type("text/html").body(s)
 }
 
-#[derive(Debug, Deserialize)]
+#[derive(Debug, Deserialize, Serialize)]
 struct Config {
     port: u16
 }
 
+const DEFAULT_CONFIG: Config = Config { port: 8082 };
+
 fn get_exe_name() -> String {
     let first_arg = std::env::args().next().unwrap();
     let sep: &[_] = &['\\', '/'];
     first_arg[first_arg.rfind(sep).unwrap()+1..].to_string()
 }
 
+fn load_config() -> Config {
+    // unwrap_or_else(|_| panic!("Failed to open configuration file {}", consts::FILE_CONF));
+    match File::open(consts::FILE_CONF) {
+        Ok(file) => from_reader(file).unwrap_or_else(|_| panic!("Failed to open configuration file {}", consts::FILE_CONF)),
+        Err(_) => {
+            let mut file = File::create(consts::FILE_CONF) .unwrap();
+            file.write_all(to_string_pretty(&DEFAULT_CONFIG, PrettyConfig::new()).unwrap().as_bytes()).unwrap(); // We do not use 'to_writer' because it can't pretty format the output.
+            DEFAULT_CONFIG
+        }
+    }
+}
+
 fn read_key() -> String {
     let mut key = String::new();
     File::open(consts::FILE_KEY)
@@ -77,6 +91,7 @@ fn write_key(key : &str) {
 }
 
 #[actix_rt::main]
+
 async fn main() -> std::io::Result<()> {
     let key = {
         // If the key file doesn't exist then create a new one with a random key in it.
@@ -94,13 +109,7 @@ async fn main() -> std::io::Result<()> {
 
     println!("Starting RUP as web server...");
 
-    let config: Config = {
-        let f = File::open(consts::FILE_CONF).unwrap_or_else(|_| panic!("Failed to open configuration file {}", consts::FILE_CONF));
-        match from_reader(f) {
-            Ok(c) => c,
-            Err(e) => panic!("Failed to load config: {}", e)
-        }
-    };
+    let config = load_config();
 
     println!("Configuration: {:?}", config);