Add sqlite stub library

Cargo.lock

@@ -579,6 +579,18 @@ dependencies = [
  "windows-sys 0.60.2",
 ]
 
+[[package]]
+name = "fallible-iterator"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2acce4a10f12dc2fb14a218589d4f1f62ef011b2d0cc4b3cb1bba8e94da14649"
+
+[[package]]
+name = "fallible-streaming-iterator"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
+
 [[package]]
 name = "fastrand"
 version = "2.3.0"
@@ -601,6 +613,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foldhash"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -740,6 +758,18 @@ name = "hashbrown"
 version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5971ac85611da7067dbfcabef3c70ebb5606018acd9e2a3903a0da507521e0d5"
+dependencies = [
+ "foldhash",
+]
+
+[[package]]
+name = "hashlink"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
+dependencies = [
+ "hashbrown 0.15.4",
+]
 
 [[package]]
 name = "hdrhistogram"
@@ -1062,6 +1092,15 @@ dependencies = [
  "walkdir",
 ]
 
+[[package]]
+name = "lb_sqlite"
+version = "0.0.1"
+dependencies = [
+ "lb",
+ "luaffi",
+ "rusqlite",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.174"
@@ -1100,6 +1139,18 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "libsqlite3-sys"
+version = "0.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91632f3b4fb6bd1d72aa3d78f41ffecfcf2b1a6648d8c241dbe7dbfaf4875e15"
+dependencies = [
+ "bindgen",
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "libz-sys"
 version = "1.1.22"
@@ -1187,6 +1238,7 @@ dependencies = [
  "clap",
  "console-subscriber",
  "lb",
+ "lb_sqlite",
  "luajit",
  "mimalloc",
  "owo-colors",
@@ -1554,6 +1606,20 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
+name = "rusqlite"
+version = "0.36.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3de23c3319433716cf134eed225fe9986bc24f63bed9be9f20c329029e672dc7"
+dependencies = [
+ "bitflags",
+ "fallible-iterator",
+ "fallible-streaming-iterator",
+ "hashlink",
+ "libsqlite3-sys",
+ "smallvec",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.25"

Cargo.toml

@@ -2,6 +2,7 @@
 resolver = "3"
 members = [
     "crates/lb",
+    "crates/lb_sqlite",
     "crates/luaffi",
     "crates/luaffi_impl",
     "crates/luaify",
@@ -35,17 +36,19 @@ name = "main"
 harness = false
 
 [features]
-default = ["task", "time", "fs", "net"]
+default = ["task", "time", "fs", "net", "sqlite"]
 task = ["lb/task"]
 time = ["lb/time"]
 fs = ["lb/fs"]
 net = ["lb/net"]
+sqlite = ["dep:lb_sqlite"]
 tokio-console = ["dep:console-subscriber"]
 
 [dependencies]
 clap = { version = "4.5.40", features = ["derive", "env"] }
 console-subscriber = { version = "0.4.1", optional = true }
 lb = { path = "crates/lb", features = ["runtime"] }
+lb_sqlite = { path = "crates/lb_sqlite", optional = true }
 luajit = { path = "crates/luajit", features = ["runtime"] }
 mimalloc = "0.1.47"
 owo-colors = "4.2.1"

crates/lb_sqlite/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "lb_sqlite"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[dependencies]
+lb = { path = "../lb", features = ["time"] }
+luaffi = { version = "0.0.1", path = "../luaffi" }
+rusqlite = { version = "0.36.0", features = ["bundled", "load_extension", "backup", "blob", "limits", "window", "series", "session", "collation", "serialize"] }

crates/lb_sqlite/src/lib.rs

@@ -0,0 +1,3 @@
+//! luby SQLite library.
+#[path = "mod.rs"]
+pub mod sqlite;

crates/lb_sqlite/src/mod.rs

@@ -0,0 +1,27 @@
+//! SQLite library.
+//!
+//! The `lb:sqlite` library provides an interface to SQLite databases.
+//!
+//! ## Exports
+//!
+//! See [`lb_sqlitelib`] for items exported by this library.
+use luaffi::{cdef, metatype};
+
+/// Items exported by the `lb:sqlite` library.
+///
+/// This library can be acquired by calling
+/// [`require("lb:sqlite")`](https://www.lua.org/manual/5.1/manual.html#pdf-require).
+///
+/// ```lua
+/// local sqlite = require("lb:sqlite");
+/// ```
+#[cdef(module = "lb:time")]
+pub struct lb_sqlitelib;
+
+#[metatype]
+impl lb_sqlitelib {
+    #[new]
+    extern "Lua-C" fn new() -> Self {
+        Self
+    }
+}

src/lib.rs

@@ -8,6 +8,9 @@ pub use lb::task;
 #[cfg(feature = "time")]
 pub use lb::time;
 
+#[cfg(feature = "sqlite")]
+pub use lb_sqlite::sqlite;
+
 #[doc(hidden)]
 pub fn open(#[allow(unused)] rt: &mut lb::runtime::Builder) {
     #[cfg(feature = "task")]
@@ -18,4 +21,7 @@ pub fn open(#[allow(unused)] rt: &mut lb::runtime::Builder) {
     rt.module::<fs::lb_fslib>();
     #[cfg(feature = "net")]
     rt.module::<net::lb_netlib>();
+
+    #[cfg(feature = "sqlite")]
+    rt.module::<sqlite::lb_sqlitelib>();
 }