Help with reducing package size

.github/workflows/main.yml

@@ -114,12 +114,12 @@ jobs:
             # Check simd for compat builds
             - name: Check 2d simd compat build
               run: |
-                  if ! wasm-objdump -d rapier-compat/builds/2d-simd/pkg/rapier_wasm2d_bg.wasm | grep :\\sfd ; then
+                  if ! wasm-objdump -d rapier-compat/builds/rapier2d-simd/pkg/rapier_wasm2d_bg.wasm | grep :\\sfd ; then
                     >&2 echo "ERROR: 2d simd compat build does not include simd opcode prefix." && exit 1;
                   fi
             - name: Check 3d simd compat build
               run: |
-                  if ! wasm-objdump -d rapier-compat/builds/3d-simd/pkg/rapier_wasm3d_bg.wasm | grep :\\sfd ; then
+                  if ! wasm-objdump -d rapier-compat/builds/rapier3d-simd/pkg/rapier_wasm3d_bg.wasm | grep :\\sfd ; then
                     >&2 echo "ERROR: 3d simd compat build does not include simd opcode prefix." && exit 1;
                   fi
             # Upload

.github/workflows/minimal.yml

@@ -0,0 +1,47 @@
+name: minimal
+
+on:
+    push:
+        branches: [master]
+    pull_request:
+        branches: [master]
+    workflow_dispatch:
+
+env:
+    CARGO_TERM_COLOR: always
+
+jobs:
+    build:
+        strategy:
+            matrix:
+                os: [ubuntu-latest, macos-latest]
+        runs-on: ${{ matrix.os }}
+        env:
+            RUSTFLAGS: -D warnings
+        steps:
+            - uses: actions/checkout@v4
+            - uses: actions/cache@v3
+              with:
+                  path: |
+                      ~/.cargo/bin/
+                      ~/.cargo/registry/index/
+                      ~/.cargo/registry/cache/
+                      ~/.cargo/git/db/
+                      target/
+                  key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+            - run: npm ci
+            - name: Prepare minimal 2d build
+              working-directory: ./builds/prepare_builds/
+              run: |
+                  cargo run -- -c assets/example_dim2_minimal.json
+            - name: install rapier-compat dependencies
+              working-directory: ./rapier-compat
+              run: npm ci;
+            - name: Build minimal 2d project
+              working-directory: ./builds/rapier2d-minimal
+              run: |
+                  npm run build
+            - name: Build minimal 2d project compat
+              working-directory: ./rapier-compat
+              run: |
+                  npm run build-conf -- example_dim2_minimal

README.md

@@ -43,7 +43,7 @@ Note that `prepare_all_projects.sh` only needs to be run once. It needs to be re
 
 The built packages will be in `builds/rapier2d/pkg`, `builds/rapier3d/pkg`, etc. To build the `-compat` variant of the
 packages, run `npm run build` in the `rapier-compat` directory. Note that this will only work if you already ran
-`prepare_all_projects.sh`. The compat packages are then generated in, e.g., `rapier-compat/builds/3d/pkg`.
+`prepare_all_projects.sh`. The compat packages are then generated in, e.g., `rapier-compat/builds/rapier3d/pkg`.
 
 ## Feature selection
 

builds/prepare_builds/Cargo.toml

@@ -7,3 +7,5 @@ edition = "2021"
 clap = { version = "4.5" }
 clap_derive = { version = "4.5" }
 tera = "1.20"
+serde_json = "1"
+serde = { version = "1", features = ["derive"] }

builds/prepare_builds/README.md

@@ -6,7 +6,8 @@ It uses clap so you can pass `-h` to get more info about its parameters.
 
 ## usage
 
-At workspace root: `cargo run -p prepare_builds -- -d dim2 -f simd`.
+In this directory: `cargo run -- -c assets/dim2.json`.
+The configuration file contains relative links which are not made canonical so the call location is important.
 
 Or use provided scripts: `./builds/prepare_builds/prepare_all_projects.sh && ./builds/prepare_builds/build_all_projects.sh`
 

builds/prepare_builds/assets/dim2.json

@@ -0,0 +1,10 @@
+{
+    "dim": "2",
+    "additional_features": ["serde-serialize", "debug-render"],
+    "target_dir": "../rapier2d/",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier2d",
+    "conditional_compilation_to_remove": ["DIM3"]
+}

builds/prepare_builds/assets/dim2_deterministic.json

@@ -0,0 +1,14 @@
+{
+    "dim": "2",
+    "additional_features": [
+        "serde-serialize",
+        "debug-render",
+        "enhanced-determinism"
+    ],
+    "target_dir": "../rapier2d-deterministic",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier2d-deterministic",
+    "conditional_compilation_to_remove": ["DIM3"]
+}

builds/prepare_builds/assets/dim2_simd.json

@@ -0,0 +1,10 @@
+{
+    "dim": "2",
+    "additional_features": ["serde-serialize", "debug-render", "simd-stable"],
+    "target_dir": "../rapier2d-simd",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "-C target-feature=+simd128",
+    "additional_wasm_opt_flags": ["--enable-simd"],
+    "js_package_name": "rapier2d-simd",
+    "conditional_compilation_to_remove": ["DIM3"]
+}

builds/prepare_builds/assets/dim3.json

@@ -0,0 +1,10 @@
+{
+    "dim": "3",
+    "additional_features": ["serde-serialize", "debug-render"],
+    "target_dir": "../rapier3d/",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier3d",
+    "conditional_compilation_to_remove": ["DIM2"]
+}

builds/prepare_builds/assets/dim3_deterministic.json

@@ -0,0 +1,14 @@
+{
+    "dim": "3",
+    "additional_features": [
+        "serde-serialize",
+        "debug-render",
+        "enhanced-determinism"
+    ],
+    "target_dir": "../rapier3d-deterministic",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier3d-deterministic",
+    "conditional_compilation_to_remove": ["DIM2"]
+}

builds/prepare_builds/assets/dim3_simd.json

@@ -0,0 +1,10 @@
+{
+    "dim": "3",
+    "additional_features": ["serde-serialize", "debug-render", "simd-stable"],
+    "target_dir": "../rapier3d-simd",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "-C target-feature=+simd128",
+    "additional_wasm_opt_flags": ["--enable-simd"],
+    "js_package_name": "rapier3d-simd",
+    "conditional_compilation_to_remove": ["DIM2"]
+}

builds/prepare_builds/assets/example_dim2_minimal.json

@@ -0,0 +1,14 @@
+{
+    "dim": "2",
+    "additional_features": [],
+    "target_dir": "../rapier2d-minimal/",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier2d-minimal",
+    "conditional_compilation_to_remove": [
+        "DIM3",
+        "SERDE_SERIALIZE",
+        "DEBUG_RENDER"
+    ]
+}

builds/prepare_builds/assets/example_dim3_minimal.json

@@ -0,0 +1,14 @@
+{
+    "dim": "3",
+    "additional_features": [],
+    "target_dir": "../rapier3d-minimal/",
+    "template_dir": "./templates/",
+    "additional_rust_flags": "",
+    "additional_wasm_opt_flags": [],
+    "js_package_name": "rapier3d-minimal",
+    "conditional_compilation_to_remove": [
+        "DIM2",
+        "SERDE_SERIALIZE",
+        "DEBUG_RENDER"
+    ]
+}

builds/prepare_builds/build_all_projects.sh

@@ -12,7 +12,7 @@ do
         # FIXME: ideally we'd use `npm ci`
         # but we'd need to have generated the `package-lock` beforehand and committed them in the repository.
         # I'm not sure yet how to store those `package-lock`s yet though.
-        # They should proably be similar to all packages, but I'm not sure.
+        # They should probably be similar to all packages, but I'm not sure.
         npm i;
         npm run build;
     )

builds/prepare_builds/prepare_all_projects.sh

@@ -1,11 +1,10 @@
 #!/bin/bash
 
-features=(non-deterministic deterministic simd)
-dims=(dim2 dim3)
+cd "$(dirname "$0")"
 
-for feature in ${features[@]}; do
-    for dim in ${dims[@]}; do
-        echo "preparing dimension $dim with feature $feature"
-        cargo run -p prepare_builds -- -d ${dim} -f ${feature}
-    done
+config_files=(dim2_deterministic dim2_simd dim2 dim3_deterministic dim3_simd dim3)
+
+for config_path in ${config_files[@]}; do
+    echo "preparing dimension $dim with feature $feature"
+    cargo run -- -c assets/${config_path}.json
 done