1 files changed, 119 insertions, 0 deletions
diff --git a/tools/wgpu_sync.js b/tools/wgpu_sync.js
new file mode 100755
index 000000000..c5b6ffc45
--- /dev/null
+++ b/tools/wgpu_sync.js
@@ -0,0 +1,119 @@
+#!/usr/bin/env -S deno run --unstable --allow-read --allow-write --allow-run
+// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+
+import { join, ROOT_PATH, walk } from "./util.js";
+
+// const COMMIT = "c00e471274b6c21acda89b4b13d41742c0285d71"; // Release 12
+const COMMIT = "c4aa3eaed020a640fec06b48f0a5ea93490d41bb"; // tip of PR (needs merge)
+const REPO = "kvark/wgpu";
+const V_WGPU = "0.12";
+const TARGET_DIR = join(ROOT_PATH, "ext", "webgpu");
+
+async function bash(subcmd, opts = {}) {
+  const p = Deno.run({ ...opts, cmd: ["bash", "-c", subcmd] });
+
+  // Exit process on failure
+  const { success, code } = await p.status();
+  if (!success) {
+    Deno.exit(code);
+  }
+  // Cleanup
+  p.close();
+}
+
+async function clearTargetDir() {
+  await bash(`rm -r ${TARGET_DIR}/*`);
+}
+
+async function checkoutUpstream() {
+  // Path of deno_webgpu inside the TAR
+  const tarPrefix = `${REPO.replace("/", "-")}-${
+    COMMIT.slice(0, 7)
+  }/deno_webgpu/`;
+  const cmd =
+    `curl -L https://api.github.com/repos/${REPO}/tarball/${COMMIT} | tar -C '${TARGET_DIR}' -xzvf - --strip=2 '${tarPrefix}'`;
+  // console.log(cmd);
+  await bash(cmd);
+}
+
+async function denoCoreVersion() {
+  const coreCargo = join(ROOT_PATH, "core", "Cargo.toml");
+  const contents = await Deno.readTextFile(coreCargo);
+  return contents.match(/^version = "(\d+\.\d+\.\d+)"$/m)[1];
+}
+
+async function denoWebgpuVersion() {
+  const coreCargo = join(ROOT_PATH, "runtime", "Cargo.toml");
+  const contents = await Deno.readTextFile(coreCargo);
+  return contents.match(
+    /^deno_webgpu = { version = "(\d+\.\d+\.\d+)", path = "..\/ext\/webgpu" }$/m,
+  )[1];
+}
+
+async function patchFile(path, patcher) {
+  const data = await Deno.readTextFile(path);
+  const patched = patcher(data);
+  await Deno.writeTextFile(path, patched);
+}
+
+async function patchCargo() {
+  const vDenoCore = await denoCoreVersion();
+  const vDenoWebgpu = await denoWebgpuVersion();
+  await patchFile(
+    join(TARGET_DIR, "Cargo.toml"),
+    (data) =>
+      data
+        .replace(/^version = .*/m, `version = "${vDenoWebgpu}"`)
+        .replace(`edition = "2018"`, `edition = "2021"`)
+        .replace(
+          /^deno_core \= .*$/gm,
+          `deno_core = { version = "${vDenoCore}", path = "../../core" }`,
+        )
+        .replace(
+          /^wgpu-core \= .*$/gm,
+          `wgpu-core = { version = "${V_WGPU}", features = ["trace", "replay", "serde"] }`,
+        )
+        .replace(
+          /^wgpu-types \= .*$/gm,
+          `wgpu-types = { version = "${V_WGPU}", features = ["trace", "replay", "serde"] }`,
+        ),
+    // .replace(
+    //   /^wgpu-core \= .*$/gm,
+    //   `wgpu-core = { git = "https://github.com/${REPO}", rev = "${COMMIT}", features = ["trace", "replay", "serde"] }`,
+    // )
+    // .replace(
+    //   /^wgpu-types \= .*$/gm,
+    //   `wgpu-types = { git = "https://github.com/${REPO}", rev = "${COMMIT}", features = ["trace", "replay", "serde"] }`,
+    // )
+  );
+}
+
+async function patchSrcLib() {
+  await patchFile(
+    join(TARGET_DIR, "src", "lib.rs"),
+    (data) =>
+      data.replace(`prefix "deno:deno_webgpu",`, `prefix "deno:ext/webgpu",`),
+  );
+}
+
+async function patchCopyrights() {
+  const walker = walk(TARGET_DIR, { includeDirs: false });
+  for await (const entry of walker) {
+    await patchFile(
+      entry.path,
+      (data) =>
+        data.replace(/^\/\/ Copyright 2018-2021/, "// Copyright 2018-2022"),
+    );
+  }
+}
+
+async function main() {
+  await clearTargetDir();
+  await checkoutUpstream();
+  await patchCargo();
+  await patchSrcLib();
+  await patchCopyrights();
+  await bash(join(ROOT_PATH, "tools", "format.js"));
+}
+
+await main();