Support creating a standalone sync server

Cargo.lock

@@ -164,6 +164,13 @@ dependencies = [
  "zstd",
 ]
 
+[[package]]
+name = "anki-sync-server"
+version = "0.0.0"
+dependencies = [
+ "anki",
+]
+
 [[package]]
 name = "anki_i18n"
 version = "0.0.0"

Cargo.toml

@@ -14,6 +14,7 @@ members = [
   "rslib/proto",
   "rslib/io",
   "rslib/process",
+  "rslib/sync",
   "pylib/rsbridge",
   "build/configure",
   "build/ninja_gen",

rslib/sync/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "anki-sync-server"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+publish = false
+rust-version.workspace = true
+description = "Standalone sync server"
+
+[[bin]]
+path = "main.rs"
+name = "anki-sync-server"
+
+[dependencies]
+anki.workspace = true

rslib/sync/main.rs

@@ -0,0 +1,14 @@
+// Copyright: Ankitects Pty Ltd and contributors
+// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+use std::env;
+
+use anki::log::set_global_logger;
+use anki::sync::http_server::SimpleServer;
+
+fn main() {
+    if env::var("RUST_LOG").is_err() {
+        env::set_var("RUST_LOG", "anki=info")
+    }
+    set_global_logger(None).unwrap();
+    println!("{}", SimpleServer::run());
+}