Merge pull request #547 from tursodatabase/lucio/pregen

libsql-sys: pregenerate bindings
tursodatabase · Nov 1, 2023 · 983871c · 983871c
2 parents c032b9f + 1c25d4b
commit 983871c
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diff --git a/.github/workflows/golang-bindings.yml b/.github/workflows/golang-bindings.yml
@@ -29,7 +29,7 @@ jobs:
 
     - name: configure
       working-directory: libsql-sqlite3
-      run: ./configure
+      run: CFLAGS="-DSQLITE_ENABLE_COLUMN_METADATA=1" ./configure --enable-all --enable-releasemode
 
     - name: Build
       working-directory: libsql-sqlite3

diff --git a/libsql-sys/build.rs b/libsql-sys/build.rs
@@ -17,9 +17,34 @@ fn run_make() {
         .unwrap();
 }
 
+fn precompiled() -> bool {
+    std::fs::metadata(Path::new(SQLITE_DIR).join(".libs").join("liblibsql.a")).is_ok()
+}
+
 fn main() {
     let out_dir = env::var("OUT_DIR").unwrap();
     let out_path = Path::new(&out_dir).join("bindgen.rs");
+
+    // Fast path: liblibsql.a exists and bindings are ready
+    println!("cargo:rerun-if-env-changed=LIBSQL_REGENERATE_BINDINGS");
+    if precompiled() && env::var("LIBSQL_REGENERATE_BINDINGS").is_err() {
+        let bindgen_rs_path = if cfg!(feature = "session") {
+            "bundled/bindings/session_bindgen.rs"
+        } else {
+            "bundled/bindings/bindgen.rs"
+        };
+        std::fs::copy(Path::new(bindgen_rs_path), &out_path).unwrap();
+        std::fs::copy(
+            Path::new(SQLITE_DIR).join(".libs").join("liblibsql.a"),
+            Path::new(&out_dir).join("liblibsql.a"),
+        )
+        .unwrap();
+        println!("cargo:lib_dir={out_dir}");
+        println!("cargo:rustc-link-search={out_dir}");
+        println!("cargo:rustc-link-lib=static={LIB_NAME}");
+        return;
+    }
+
     println!("cargo:rerun-if-changed={SQLITE_DIR}/src/");
     run_make();
     build_bundled(&out_dir, &out_path);