build: cargo workspace at the project root (flybywiresim#3346)

By having the cargo workspace at the project root, one can develop in
our whole codebase at the same time. Earlier one needed to have two
instances of e.g. vscode open to work on both.

.gitignore

@@ -24,13 +24,15 @@
 !.prettierignore
 !.npmrc
 !manifest-base.json
+!Cargo.lock
+!Cargo.toml
+!/.cargo/config.toml
 .DS_Store
 node_modules
 /src/sound/.cache
 /src/instruments/src/EFB/dist
 /A32NX/SimObjects/AirPlanes/Asobo_A320_NEO/model/*.gltf
 /A32NX/SimObjects/AirPlanes/Asobo_A320_NEO/model/*.bin
 *.wasm
-/src/systems/target
 /target
 /src/instruments/src/EFB/web/

.vscode/extensions.json

@@ -1,3 +1,3 @@
 {
-  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode", "matklad.rust-analyzer", "vadimcn.vscode-lldb"]
 }

Cargo.toml

@@ -0,0 +1,6 @@
+[workspace]
+
+members = [
+    "src/systems/a320",
+    "src/systems/systems"
+]

scripts/build.sh

@@ -28,10 +28,8 @@ build_manifests() {
 }
 
 build_systems() {
-    cd src/systems/a320
     cargo build --target wasm32-wasi --release
-    cd ../../..
-    cp src/systems/target/wasm32-wasi/release/systems.wasm A32NX/SimObjects/AirPlanes/Asobo_A320_NEO/panel/
+    cp target/wasm32-wasi/release/systems.wasm A32NX/SimObjects/AirPlanes/Asobo_A320_NEO/panel/
 }
 
 build_metadata() {

scripts/lint-rust.sh

@@ -2,8 +2,6 @@
 
 set -ex
 
-cd src/systems
-
 cargo fmt -- --check
 
 cargo clippy --all-targets --all-features -- -D warnings

scripts/test-rust.sh

@@ -2,6 +2,4 @@
 
 set -ex
 
-cd src/systems
-
 cargo test

src/systems/README.md

@@ -12,5 +12,5 @@ Follow the steps below if you want to build the content of this folder without u
 
 1. Install the `wasm32-wasi` target by running: `rustup target add wasm32-wasi`.
 2. Install LLVM 11 which can be found [here](https://releases.llvm.org/download.html), ensure to add it to your PATH.
-3. Run `cargo build --target wasm32-wasi` in the console.
+3. Run `cargo build --target wasm32-wasi` in the console at the top-level of the a32nx repository.
 4. The `lib.rs` file is built as `target/wasm32-wasi/debug/a320.wasm`.