Add static build as separate target

Author: simolus3

Cargo.lock

@@ -0,0 +1,24 @@
+[package]
+name = "powersync_static"
+edition.workspace = true
+version.workspace = true
+homepage.workspace = true
+repository.workspace = true
+license.workspace = true
+authors.workspace = true
+keywords.workspace = true
+
+[lib]
+name = "powersync"
+crate-type = ["staticlib"]
+
+[dependencies]
+sqlite_nostd = { workspace=true }
+
+[dependencies.powersync_core]
+path = "../core"
+default-features = false
+features = []
+
+[features]
+default = ["powersync_core/static", "powersync_core/omit_load_extension", "sqlite_nostd/omit_load_extension"]

crates/static/Cargo.toml

@@ -0,0 +1 @@
+Builds the core extension as a static library, exposing the `powersync_init_static` function to load it.

crates/static/README.md

@@ -0,0 +1,31 @@
+#![no_std]
+#![feature(vec_into_raw_parts)]
+#![feature(core_intrinsics)]
+#![allow(internal_features)]
+#![feature(lang_items)]
+
+extern crate alloc;
+
+// Defines sqlite3_powersync_init
+#[allow(unused_imports)]
+use powersync_core;
+
+// Use the SQLite allocator, allowing us to freely transfer memory between SQLite and Rust.
+#[cfg(not(test))]
+use sqlite_nostd::SQLite3Allocator;
+
+#[cfg(not(test))]
+#[global_allocator]
+static ALLOCATOR: SQLite3Allocator = SQLite3Allocator {};
+
+// Custom Panic handler for WASM and other no_std builds
+#[cfg(not(test))]
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+    core::intrinsics::abort()
+}
+
+#[cfg(not(target_family = "wasm"))]
+#[cfg(not(test))]
+#[lang = "eh_personality"]
+extern "C" fn eh_personality() {}

crates/static/src/lib.rs

@@ -6,10 +6,8 @@ emcc --version
 # target/wasm32-unknown-emscripten/wasm/powersync.wasm
 RUSTFLAGS="-C link-arg=-sSIDE_MODULE=2" \
   cargo build \
-    -p powersync_loadable \
+    -p powersync_static \
     --profile wasm \
-    --no-default-features \
-    --features "powersync_core/static powersync_core/omit_load_extension sqlite_nostd/omit_load_extension" \
     -Z build-std=panic_abort,core,alloc \
     --target wasm32-unknown-emscripten
 
@@ -19,10 +17,8 @@ cp "target/wasm32-unknown-emscripten/wasm/powersync.wasm" "libpowersync.wasm"
 # target/wasm32-unknown-emscripten/wasm_asyncify/powersync.wasm
 RUSTFLAGS="-C link-arg=-sSIDE_MODULE=2 -C link-arg=-sASYNCIFY=1 -C link-arg=-sJSPI_IMPORTS=@wasm/asyncify_imports.json" \
   cargo build \
-    -p powersync_loadable \
+    -p powersync_static \
     --profile wasm_asyncify \
-    --no-default-features \
-    --features "powersync_core/static powersync_core/omit_load_extension sqlite_nostd/omit_load_extension" \
     -Z build-std=panic_abort,core,alloc \
     --target wasm32-unknown-emscripten
 
@@ -34,10 +30,8 @@ cp "target/wasm32-unknown-emscripten/wasm_asyncify/powersync.wasm" "libpowersync
 # Works for both emscripten and wasi.
 # target/wasm32-wasip1/wasm/libpowersync.a
 cargo build \
-  -p powersync_loadable \
+  -p powersync_static \
   --profile wasm \
-  --no-default-features \
-  --features "powersync_core/static powersync_core/omit_load_extension sqlite_nostd/omit_load_extension" \
   -Z build-std=panic_abort,core,alloc \
   --target wasm32-wasip1
 

tool/build_wasm.sh

@@ -149,7 +149,16 @@ rm -rf powersync-sqlite-core.xcframework
 
 for TARGET in ${TARGETS[@]}; do
   echo "Building PowerSync loadable extension for $TARGET"
-  cargo build -p powersync_loadable --profile release_apple --target $TARGET -Zbuild-std
+
+  if [[ $TARGET == *"watchos"* ]]; then
+    cargo build \
+      -p powersync_static \
+      --profile release_apple \
+      --target $TARGET \
+      -Zbuild-std
+  else
+    cargo build -p powersync_loadable --profile release_apple --target $TARGET -Zbuild-std
+  fi
 done
 
 createXcframework