From 4ed820a37e320b727221cbdd541c63a0b90d11a6 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Gr=C3=A9gory=20Burri?= <gregory.burri@matisa.ch>
Date: Fri, 11 Sep 2020 12:32:27 +0200
Subject: [PATCH] Be able to use 'sass.bat' on Windows.

---
 README.md         | 12 +++++++++++-
 TODO.md           |  8 ++++++++
 backend/build.rs  | 30 +++++++++++++++++++++++-------
 common/src/lib.rs |  7 ++++++-
 4 files changed, 48 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 6802a75..b72b710 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-## How to setup openssl on windows
+# Setup
+
+## Openssl on windows
 
 * Install vcpkg
     * PS> git clone https://github.com/Microsoft/vcpkg.git
@@ -12,6 +14,14 @@
 * Add this path to $env:PATH:
     * <path to vcpkg installation>\installed\x64-windows\bin
 
+## Sass
+
+Sass is needed to generate the CSS file (backend/static/style.css) from the SASS file (backend/style.scss).
+
+
+## Run backend
+
+* use the command 'Cargo run' in the backend directory (not in the root directory).
 
 ## Autoreload
 
diff --git a/TODO.md b/TODO.md
index fd7f80d..207c4b3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,4 +1,12 @@
+* Good understanding of Rust module system: http://www.sheshbabu.com/posts/rust-module-system/
+* Add a prototype Rust crate: frontent (WASM)
+  * Be able to interact with the DOM
+  * Be able to handle user event (key press for instance)
+  * Be able to share a common crate between client and server
+  * Be able to communicate between client and server with websocket+serde, structs are shared in the common crate
+* Create a SQLite database and store all key events
 * Enable Logging.
+* Use of crate clap to parse command line?
 
 [ok] Accept an argument to encrypt a message
 [ok] Use a setting file.
\ No newline at end of file
diff --git a/backend/build.rs b/backend/build.rs
index ba5da7e..8837cfc 100644
--- a/backend/build.rs
+++ b/backend/build.rs
@@ -5,20 +5,36 @@ What is build here:
  - Compile the SASS file to CSS file.
 */
 
-use std::process::Command;
+use std::{ env, process::{ Command, Output }, path::Path };
+
+fn exists_in_path<P>(filename: P) -> bool
+    where P: AsRef<Path> {
+        for path in env::split_paths(&env::var_os("PATH").unwrap()) {
+            if path.join(&filename).is_file() { return true; }
+        }
+    false
+}
 
 fn main() {
     println!("cargo:rerun-if-changed=style.scss");
 
-    let output =
-        Command::new("sass")
-            .arg("./style.scss")
-            .arg("./static/style.css")
+    fn run_sass(command: &mut Command) -> Output {
+        command
+            .arg("style.scss")
+            .arg("static/style.css")
             .output()
-            .expect("Unable to compile SASS file, install SASS, see https://sass-lang.com/");
+            .expect("Unable to compile SASS file, install SASS, see https://sass-lang.com/")
+    }
+
+    let output =
+        if exists_in_path("sass.bat") {
+            run_sass(Command::new("cmd").args(&["/C", "sass.bat"]))
+        } else {
+            run_sass(&mut Command::new("sass"))
+        };
 
     if !output.status.success() {
-        //panic!("Unable to compile SASS file, install SASS, see https://sass-lang.com/")
+        // SASS will put the error in the file.
         let error = std::fs::read_to_string("./static/style.css").expect("unable to read style.css");
         panic!(error);
     }
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 7216967..d257341 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -1,4 +1,9 @@
-mod rup {
+
+
+
+mod tests {
+    use super::*;
+
     #[test]
     fn it_works() {
         assert_eq!(2 + 2, 4);
-- 
2.43.0