initial commit

scripts/sync-webkit-source.ts

@@ -0,0 +1,45 @@
+import { existsSync } from "node:fs";
+import { dirname, join } from "node:path";
+
+const bunRepo = dirname(import.meta.dir);
+const webkitRepo = join(bunRepo, "vendor/WebKit");
+if (!existsSync(webkitRepo)) {
+  console.log("could not find WebKit clone");
+  console.log("clone https://github.com/oven-sh/WebKit.git to vendor/WebKit");
+  console.log("or create a symlink/worktree to an existing clone");
+  process.exit(1);
+}
+
+process.chdir(webkitRepo);
+const checkedOutCommit = (await Bun.$`git rev-parse HEAD`.text()).trim();
+// config.ts and deps/webkit.ts import each other; evaluating config.ts first
+// matches the build's entry order so WEBKIT_VERSION initializes before use.
+await import("./build/config.ts");
+const { WEBKIT_VERSION } = await import("./build/deps/webkit.ts");
+
+// WEBKIT_VERSION is either a 40-hex commit sha or an autobuild-* release tag.
+// Resolve it to the commit it points at; preview tags sit on unmerged
+// oven-sh/WebKit PR heads, so plain `git pull` on main never fetches them.
+async function resolveToSha(): Promise<string> {
+  const out = await Bun.$`git rev-parse --verify ${WEBKIT_VERSION}^{commit}`.quiet().nothrow();
+  return out.exitCode === 0 ? out.text().trim() : "";
+}
+
+let expectedSha = await resolveToSha();
+if (!expectedSha) {
+  await Bun.$`git fetch --tags origin`;
+  expectedSha = await resolveToSha();
+}
+if (!expectedSha) {
+  console.log(`could not resolve ${WEBKIT_VERSION} in vendor/WebKit even after fetching`);
+  console.log("check that the commit or tag exists on https://github.com/oven-sh/WebKit");
+  process.exit(1);
+}
+
+if (checkedOutCommit === expectedSha) {
+  console.log(`already at ${WEBKIT_VERSION} (${expectedSha})`);
+} else {
+  console.log(`changing from ${checkedOutCommit} to ${WEBKIT_VERSION} (${expectedSha})`);
+  // it is OK that this leaves you with a detached HEAD
+  await Bun.$`git checkout ${expectedSha}`;
+}