Added clap, use options

Cargo.lock

@@ -254,11 +254,28 @@ dependencies = [
  "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "arc-swap"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "atty"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "autocfg"
 version = "0.1.7"
@@ -361,12 +378,16 @@ name = "bunbun"
 version = "0.2.2"
 dependencies = [
  "actix-web 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "handlebars 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hotwatch 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "simple_logger 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -416,6 +437,21 @@ dependencies = [
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "clap"
+version = "2.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "yaml-rust 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cloudabi"
 version = "0.0.3"
@@ -424,6 +460,16 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "colored"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "const-random"
 version = "0.1.6"
@@ -1426,6 +1472,16 @@ dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "simple_logger"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "colored 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -1463,6 +1519,11 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "syn"
 version = "0.15.44"
@@ -1494,6 +1555,14 @@ dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "textwrap"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "thread_local"
 version = "0.3.6"
@@ -1707,6 +1776,11 @@ dependencies = [
  "smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "unicode-xid"
 version = "0.1.0"
@@ -1737,6 +1811,11 @@ dependencies = [
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "vec_map"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "walkdir"
 version = "2.2.9"
@@ -1819,6 +1898,11 @@ dependencies = [
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "yaml-rust"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "yaml-rust"
 version = "0.4.3"
@@ -1844,7 +1928,9 @@ dependencies = [
 "checksum adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
 "checksum ahash 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "6f33b5018f120946c1dcf279194f238a9f146725593ead1c08fa47ff22b0b5d3"
 "checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
+"checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 "checksum arc-swap 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d7b8a9123b8027467bce0099fe556c628a53c8d83df0507084c31e9ba2e39aff"
+"checksum atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1803c647a3ec87095e7ae7acfca019e98de5ec9a7d01343f611cf3152ed71a90"
 "checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
 "checksum awc 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "5e995283278dd3bf0449e7534e77184adb1570c0de8b6a50bf7c9d01ad8db8c4"
 "checksum backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)" = "924c76597f0d9ca25d762c25a4d369d51267536465dc5064bdf0eb073ed477ea"
@@ -1862,7 +1948,9 @@ dependencies = [
 "checksum cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "31850b4a4d6bae316f7a09e691c944c28299298837edc0a03f755618c23cbc01"
+"checksum clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
+"checksum colored 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "433e7ac7d511768127ed85b0c4947f47a254131e37864b2dc13f52aa32cd37e5"
 "checksum const-random 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7b641a8c9867e341f3295564203b1c250eb8ce6cb6126e007941f78c4d2ed7fe"
 "checksum const-random-macro 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c750ec12b83377637110d5a57f5ae08e895b06c4b16e2bdbf1a94ef717428c59"
 "checksum copyless 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "6ff9c56c9fb2a49c05ef0e431485a22400af20d33226dc0764d891d09e724127"
@@ -1982,14 +2070,17 @@ dependencies = [
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 "checksum signal-hook 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7a9c17dd3ba2d36023a5c9472ecddeda07e27fd0b05436e8c1e0c8f178185652"
 "checksum signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94f478ede9f64724c5d173d7bb56099ec3e2d9fc2774aac65d34b8b890405f41"
+"checksum simple_logger 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3a4756ecc75607ba957820ac0a2413a6c27e6c61191cda0c62c6dcea4da88870"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
 "checksum smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
 "checksum socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)" = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
 "checksum string 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
+"checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 "checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
 "checksum syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dff0acdb207ae2fe6d5976617f887eb1e35a2ba52c13c7234c790960cdad9238"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
+"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e2f0c90a5f3459330ac8bc0d2f879c693bb7a2f59689c1083fc4ef83834da865"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
@@ -2009,10 +2100,12 @@ dependencies = [
 "checksum ucd-trie 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8f00ed7be0c1ff1e24f46c3d2af4859f7e863672ba3a6e92e7cff702bf9f06c2"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b561e267b2326bb4cebfc0ef9e68355c7abe6c6f522aeac2f5bf95d56c59bdcf"
+"checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "75b414f6c464c879d7f9babf951f23bc3743fb7313c081b2e6ca719067ea9d61"
+"checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9658c94fa8b940eab2250bd5a457f9c48b748420d71293b165c8cdbe2f55f71e"
 "checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
 "checksum widestring 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "effc0e4ff8085673ea7b9b2e3c73f6bd4d118810c9009ed8f1e16bd96c331db6"
@@ -2025,4 +2118,5 @@ dependencies = [
 "checksum winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b2986deb581c4fe11b621998a5e53361efe6b48a151178d0cd9eeffa4dc6acc9"
 "checksum winutil 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7daf138b6b14196e3830a588acf1e86966c694d3e8fb026fb105b8b5dca07e6e"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
+"checksum yaml-rust 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e66366e18dc58b46801afbf2ca7661a9f59cc8c5962c29892b6039b4f86fa992"
 "checksum yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "65923dd1784f44da1d2c3dbbc5e822045628c590ba72123e1c73d3c230c4434d"

Cargo.toml

@@ -16,6 +16,10 @@ handlebars = "2.0"
 hotwatch = "0.4"
 percent-encoding = "2.1"
 itertools = "0.8"
+libc = "0.2"
+log = "0.4"
+simple_logger = "1.3"
+clap = { version = "2.33", features = ["yaml"] }
 
 [profile.release]
 lto = true

src/cli.yaml

@@ -0,0 +1,25 @@
+name: "bunbun"
+about: "Search/jump multiplexer service"
+
+args:
+  - verbose:
+      short: "v"
+      long: "verbose"
+      multiple: true
+      help: Increases the log level to info, debug, and trace, respectively.
+      conflicts_with: "quiet"
+  - quiet:
+      short: "q"
+      long: "quiet"
+      multiple: true
+      help: Decreases the log level to error or no logging at all, respectively.
+      conflicts_with: "verbose"
+  - daemon:
+      short: "d"
+      long: "daemon"
+      help: "Run bunbun as a daemon."
+  - config:
+      short: "c"
+      long: "config"
+      default_value: "/etc/bunbun.toml"
+      help: Specify the location of the config file to read from. Needs read/write permissions.

src/main.rs

@@ -1,6 +1,10 @@
+use actix_web::middleware::Logger;
 use actix_web::{App, HttpServer};
+use clap::{crate_authors, crate_version, load_yaml, App as ClapApp};
 use handlebars::Handlebars;
 use hotwatch::{Event, Hotwatch};
+use libc::daemon;
+use log::{debug, error, info, trace, warn};
 use serde::Deserialize;
 use std::collections::HashMap;
 use std::fmt;
@@ -13,7 +17,6 @@ mod routes;
 mod template_args;
 
 static DEFAULT_CONFIG: &[u8] = include_bytes!("../bunbun.default.toml");
-static CONFIG_FILE: &str = "bunbun.toml";
 
 #[derive(Debug)]
 #[allow(clippy::enum_variant_names)]
@@ -21,6 +24,7 @@ enum BunBunError {
   IoError(std::io::Error),
   ParseError(serde_yaml::Error),
   WatchError(hotwatch::Error),
+  LoggerInitError(log::SetLoggerError),
 }
 
 impl fmt::Display for BunBunError {
@@ -29,6 +33,7 @@ impl fmt::Display for BunBunError {
       BunBunError::IoError(e) => e.fmt(f),
       BunBunError::ParseError(e) => e.fmt(f),
       BunBunError::WatchError(e) => e.fmt(f),
+      BunBunError::LoggerInitError(e) => e.fmt(f),
     }
   }
 }
@@ -48,6 +53,7 @@ macro_rules! from_error {
 from_error!(std::io::Error, IoError);
 from_error!(serde_yaml::Error, ParseError);
 from_error!(hotwatch::Error, WatchError);
+from_error!(log::SetLoggerError, LoggerInitError);
 
 /// Dynamic variables that either need to be present at runtime, or can be
 /// changed during runtime.
@@ -59,7 +65,31 @@ pub struct State {
 }
 
 fn main() -> Result<(), BunBunError> {
-  let conf = read_config(CONFIG_FILE)?;
+  let yaml = load_yaml!("cli.yaml");
+  let matches = ClapApp::from(yaml)
+    .version(crate_version!())
+    .author(crate_authors!())
+    .get_matches();
+
+  let log_level = match (
+    matches.occurrences_of("quiet"),
+    matches.occurrences_of("verbose"),
+  ) {
+    (2..=std::u64::MAX, _) => None,
+    (1, _) => Some(log::Level::Error),
+    (0, 0) => Some(log::Level::Warn),
+    (_, 1) => Some(log::Level::Info),
+    (_, 2) => Some(log::Level::Debug),
+    (_, 3..=std::u64::MAX) => Some(log::Level::Trace),
+  };
+
+  if let Some(level) = log_level {
+    simple_logger::init_with_level(level)?;
+  }
+
+  // config has default location provided
+  let conf_file_location = String::from(matches.value_of("config").unwrap());
+  let conf = read_config(&conf_file_location)?;
   let renderer = compile_templates();
   let state = Arc::from(RwLock::new(State {
     public_address: conf.public_address,
@@ -67,27 +97,53 @@ fn main() -> Result<(), BunBunError> {
     routes: conf.routes,
     renderer,
   }));
-  let state_ref = state.clone();
+
+  // Daemonize after trying to read from config and before watching; allow user
+  // to see a bad config (daemon process sets std{in,out} to /dev/null)
+  if matches.is_present("daemon") {
+    unsafe {
+      debug!("Daemon flag provided. Running as a daemon.");
+      daemon(0, 0);
+    }
+  }
 
   let mut watch = Hotwatch::new_with_custom_delay(Duration::from_millis(500))?;
+  // TODO: keep retry watching in separate thread
 
-  watch.watch(CONFIG_FILE, move |e: Event| {
+  // Closures need their own copy of variables for proper lifecycle management
+  let state_ref = state.clone();
+  let conf_file_location_clone = conf_file_location.clone();
+  let watch_result = watch.watch(&conf_file_location, move |e: Event| {
     if let Event::Write(_) = e {
+      trace!("Grabbing writer lock on state...");
       let mut state = state.write().unwrap();
-      match read_config(CONFIG_FILE) {
+      trace!("Obtained writer lock on state!");
+      match read_config(&conf_file_location_clone) {
         Ok(conf) => {
           state.public_address = conf.public_address;
           state.default_route = conf.default_route;
           state.routes = conf.routes;
+          info!("Successfully updated active state");
         }
-        Err(e) => eprintln!("Config is malformed: {}", e),
+        Err(e) => warn!("Failed to update config file: {}", e),
       }
+    } else {
+      debug!("Saw event {:#?} but ignored it", e);
+    }
+  });
+
+  match watch_result {
+    Ok(_) => info!("Watcher is now watching {}", &conf_file_location),
+    Err(e) => warn!(
+      "Couldn't watch {}: {}. Changes to this file won't be seen!",
+      &conf_file_location, e
+    ),
   }
-  })?;
 
   HttpServer::new(move || {
     App::new()
       .data(state_ref.clone())
+      .wrap(Logger::default())
       .service(routes::hop)
       .service(routes::list)
       .service(routes::index)
@@ -110,19 +166,30 @@ struct Config {
 /// Attempts to read the config file. If it doesn't exist, generate one a
 /// default config file before attempting to parse it.
 fn read_config(config_file_path: &str) -> Result<Config, BunBunError> {
+  trace!("Loading config file...");
   let config_str = match read_to_string(config_file_path) {
-    Ok(conf_str) => conf_str,
+    Ok(conf_str) => {
+      debug!("Successfully loaded config file into memory.");
+      conf_str
+    }
     Err(_) => {
-      eprintln!(
+      info!(
         "Unable to find a {} file. Creating default!",
         config_file_path
       );
-      let mut fd = OpenOptions::new()
+
+      let fd = OpenOptions::new()
         .write(true)
         .create_new(true)
-        .open(config_file_path)
+        .open(config_file_path);
-        .expect("Unable to write to directory!");
+
-      fd.write_all(DEFAULT_CONFIG)?;
+      match fd {
+        Ok(mut fd) => fd.write_all(DEFAULT_CONFIG)?,
+        Err(e) => {
+          error!("Failed to write to {}: {}. Default config will be loaded but not saved.", config_file_path, e);
+        }
+      };
+
       String::from_utf8_lossy(DEFAULT_CONFIG).into_owned()
     }
   };
@@ -147,6 +214,7 @@ fn compile_templates() -> Handlebars {
               include_bytes!(concat!("templates/", $template, ".hbs")))
           )
           .unwrap();
+        debug!("Loaded {} template.", $template);
       )*
     };
   }

src/routes.rs

@@ -5,6 +5,7 @@ use actix_web::http::header;
 use actix_web::web::{Data, Query};
 use actix_web::{HttpResponse, Responder};
 use itertools::Itertools;
+use log::debug;
 use percent_encoding::{utf8_percent_encode, AsciiSet, CONTROLS};
 use serde::Deserialize;
 use std::collections::HashMap;
@@ -70,7 +71,10 @@ fn resolve_hop(
   let mut split_args = query.split_ascii_whitespace().peekable();
   let command = match split_args.peek() {
     Some(command) => command,
-    None => return (None, String::new()),
+    None => {
+      debug!("Found empty query, returning no route.");
+      return (None, String::new());
+    }
   };
 
   match (routes.get(*command), default_route) {
@@ -79,14 +83,28 @@ fn resolve_hop(
       Some(resolved.clone()),
       match split_args.next() {
         // Discard the first result, we found the route using the first arg
-        Some(_) => split_args.join(" "),
+        Some(_) => {
-        None => String::new(),
+          let args = split_args.join(" ");
+          debug!("Resolved {} with args {}", resolved, args);
+          args
+        }
+        None => {
+          debug!("Resolved {} with no args", resolved);
+          String::new()
+        }
       },
     ),
     // Unable to find route, but had a default route
-    (None, Some(route)) => (routes.get(route).cloned(), split_args.join(" ")),
+    (None, Some(route)) => {
+      let args = split_args.join(" ");
+      debug!("Using default route {} with args {}", route, args);
+      (routes.get(route).cloned(), args)
+    }
     // No default route and no match
-    (None, None) => (None, String::new()),
+    (None, None) => {
+      debug!("Failed to resolve route!");
+      (None, String::new())
+    }
   }
 }