Add dotenv

Author: shepmaster

README.md

@@ -96,11 +96,11 @@ basic HTML/CSS/JS changes, directly open in your browser the built
 `ui/frontend/build/index.html`.
 
 ### Build and run the server
+
+Configure your `.env` file as described in the [ui README](./ui/README.md).
+
 ```
 cd ui
-RUST_LOG=ui=debug \
-PLAYGROUND_UI_ROOT=$PWD/frontend/build/ \
-PLAYGROUND_GITHUB_TOKEN=YOUR_TOKEN \
 cargo run
 ```
 

ui/Cargo.lock

@@ -30,6 +30,7 @@ hyper = "0.11.21"
 hyper-tls = "0.1.2"
 router = "0.6.0"
 openssl-probe = "0.1.2"
+dotenv = "0.11.0"
 
 [dependencies.playground-middleware]
 git = "https://github.com/integer32llc/playground-middleware"

ui/Cargo.toml

@@ -1,5 +1,8 @@
 ## Configuration
 
+When developing, you can place these in a [`.env`][dotenv] file on
+disk in this directory.
+
 In production, these should be set according to your deployment method
 of choice.
 
@@ -12,4 +15,5 @@ of choice.
 | `PLAYGROUND_LOG_FILE`     | No       |  access-log.csv | The file to record accesses                                             |
 | `TMPDIR`                  | No       | system-provided | Where compilation artifacts will be saved. Must be accessible to Docker |
 
+[dotenv]: https://crates.io/crates/dotenv
 [gist]: https://developer.github.com/v3/gists/#authentication

ui/README.md

@@ -3,6 +3,7 @@
 #[macro_use]
 extern crate log;
 extern crate env_logger;
+extern crate dotenv;
 extern crate iron;
 extern crate mount;
 extern crate router;
@@ -66,6 +67,7 @@ const ONE_YEAR_IN_SECONDS: u64 = 60 * 60 * 24 * 365;
 const SANDBOX_CACHE_TIME_TO_LIVE_IN_SECONDS: u64 = ONE_HOUR_IN_SECONDS as u64;
 
 fn main() {
+    dotenv::dotenv().unwrap();
     openssl_probe::init_ssl_cert_env_vars();
     env_logger::init();