move engine into its own crate

Author: Shubham8287

.github/workflows/ci.yml

@@ -261,6 +261,9 @@ jobs:
 
           wasm-bindgen --version
 
+      - name: Check engine simulation build
+        run: cargo check -p spacetimedb-engine --no-default-features --features simulation
+
         # Source emsdk environment to make emcc (Emscripten compiler) available in PATH.
       - name: Run tests
         run: |

Cargo.lock

@@ -14,6 +14,7 @@ members = [
   "crates/data-structures",
   "crates/datastore",
   "crates/durability",
+  "crates/engine",
   "crates/execution",
   "crates/expr",
   "crates/guard",
@@ -132,6 +133,7 @@ spacetimedb-core = { path = "crates/core", version = "=2.4.1" }
 spacetimedb-data-structures = { path = "crates/data-structures", version = "=2.4.1" }
 spacetimedb-datastore = { path = "crates/datastore", version = "=2.4.1" }
 spacetimedb-durability = { path = "crates/durability", version = "=2.4.1" }
+spacetimedb-engine = { path = "crates/engine", version = "=2.4.1" }
 spacetimedb-execution = { path = "crates/execution", version = "=2.4.1" }
 spacetimedb-expr = { path = "crates/expr", version = "=2.4.1" }
 spacetimedb-guard = { path = "crates/guard", version = "=2.4.1" }
@@ -143,6 +145,7 @@ spacetimedb-pg = { path = "crates/pg", version = "=2.4.1" }
 spacetimedb-physical-plan = { path = "crates/physical-plan", version = "=2.4.1" }
 spacetimedb-primitives = { path = "crates/primitives", version = "=2.4.1" }
 spacetimedb-query = { path = "crates/query", version = "=2.4.1" }
+spacetimedb-runtime = { path = "crates/runtime", version = "=2.4.1" }
 spacetimedb-sats = { path = "crates/sats", version = "=2.4.1" }
 spacetimedb-schema = { path = "crates/schema", version = "=2.4.1" }
 spacetimedb-standalone = { path = "crates/standalone", version = "=2.4.1" }
@@ -152,7 +155,6 @@ spacetimedb-fs-utils = { path = "crates/fs-utils", version = "=2.4.1" }
 spacetimedb-snapshot = { path = "crates/snapshot", version = "=2.4.1" }
 spacetimedb-subscription = { path = "crates/subscription", version = "=2.4.1" }
 spacetimedb-query-builder = { path = "crates/query-builder", version = "=2.4.1" }
-spacetimedb-runtime = { path = "crates/runtime", version = "=2.4.1" }
 
 # Prevent `ahash` from pulling in `getrandom` by disabling default features.
 # Modules use `getrandom02` and we need to prevent an incompatible version

Cargo.toml

@@ -22,13 +22,14 @@ spacetimedb-client-api-messages.workspace = true
 spacetimedb-commitlog.workspace = true
 spacetimedb-datastore.workspace = true
 spacetimedb-durability.workspace = true
+spacetimedb-engine.workspace = true
 spacetimedb-memory-usage.workspace = true
 spacetimedb-metrics.workspace = true
 spacetimedb-primitives.workspace = true
 spacetimedb-paths.workspace = true
 spacetimedb-physical-plan.workspace = true
 spacetimedb-query.workspace = true
-spacetimedb-runtime = { workspace = true, features = ["tokio"] }
+spacetimedb-runtime.workspace = true
 spacetimedb-sats = { workspace = true, features = ["serde"] }
 spacetimedb-schema.workspace = true
 spacetimedb-table.workspace = true
@@ -144,7 +145,7 @@ allow_loopback_http_for_tests = []
 # Enable timing for wasm ABI calls
 spacetimedb-wasm-instance-env-times = []
 # Enable test helpers and utils
-test = ["spacetimedb-commitlog/test", "spacetimedb-datastore/test"]
+test = ["spacetimedb-commitlog/test", "spacetimedb-datastore/test", "spacetimedb-engine/test"]
 # Perfmaps for profiling modules
 perfmap = []
 # Enables core pinning.

crates/core/Cargo.toml

@@ -674,6 +674,12 @@ impl SystemLogger {
     }
 }
 
+impl spacetimedb_engine::db::update::UpdateLogger for SystemLogger {
+    fn info(&self, msg: &str) {
+        self.info(msg);
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::{ops::Range, sync::Arc};