Create CET-6 90-day check-in site

scripts/install-ci.mjs

@@ -0,0 +1,51 @@
+import { spawnSync } from "node:child_process";
+import { accessSync, constants } from "node:fs";
+import path from "node:path";
+import { projectRoot } from "./sites-env.mjs";
+import { readExecutionProfile } from "./execution-profile.mjs";
+
+if (!process.env.npm_execpath) {
+  throw new Error("Run this installer with npm run install:ci.");
+}
+
+if (![
+  "SHARP_IGNORE_GLOBAL_LIBVIPS",
+  "SHARP_FORCE_GLOBAL_LIBVIPS",
+  "npm_config_build_from_source",
+  "NPM_CONFIG_BUILD_FROM_SOURCE",
+].some((key) => key in process.env)) {
+  process.env.SHARP_IGNORE_GLOBAL_LIBVIPS = "1";
+}
+
+if (readExecutionProfile() === "managed-linux") {
+  const result = spawnSync("bash", [path.join(projectRoot, "scripts/install-ci.sh")], {
+    stdio: "inherit",
+  });
+  if (result.error) throw result.error;
+  process.exit(result.status ?? 1);
+}
+
+// Invoke npm's JavaScript entrypoint, avoiding platform-specific shell shims.
+const installed = spawnSync(
+  process.execPath,
+  [
+    process.env.npm_execpath, "ci", "--prefix", projectRoot, "--workspaces=false",
+    "--include=dev", "--include=optional", "--prefer-offline", "--no-audit", "--no-fund",
+  ],
+  { stdio: "inherit" },
+);
+if (installed.error) throw installed.error;
+if (installed.status !== 0) process.exit(installed.status ?? 1);
+
+try {
+  accessSync(
+    path.join(
+      projectRoot, "node_modules", ".bin",
+      process.platform === "win32" ? "vinext.cmd" : "vinext",
+    ),
+    process.platform === "win32" ? constants.F_OK : constants.X_OK,
+  );
+} catch {
+  console.error("npm ci exited successfully but the local vinext executable is unavailable.");
+  process.exitCode = 69;
+}