init

2026-09-09 13:09:19 -04:00
commit a4f43d526f
8 changed files with 518 additions and 0 deletions
@@ -0,0 +1,53 @@
+// emit.mjs — project the engine's deploy adapter into a target dir.
+//
+//   node engine/emit.mjs <target> <dir>
+//   e.g. node engine/emit.mjs cloudflare site-instruments
+//
+// Rule (uniform for every generated file): READ the target for its per-target
+// values, then REBUILD all adapter files from the plugin templates carrying
+// those values. Structural template changes propagate to every target on the
+// next run; hand-added values (name/TITLE) survive because they're read back
+// out of the target. content/ is AUTHORED — never generated, never touched.
+
+import { readFileSync, writeFileSync, existsSync, mkdirSync, readdirSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+import { execFileSync } from "node:child_process";
+
+const ENGINE = dirname(fileURLToPath(import.meta.url));   // .../engine
+const [target, dir] = process.argv.slice(2);
+if (!target || !dir) {
+  console.error("usage: node engine/emit.mjs <target> <dir>");
+  process.exit(1);
+}
+
+const plugin = join(ENGINE, target);
+if (!existsSync(plugin)) {
+  console.error(`no deploy plugin '${target}' (expected ${plugin}/)`);
+  process.exit(1);
+}
+
+// --- read per-target values out of the existing target (preserve across rebuild) ---
+const tomlPath = join(dir, "wrangler.toml");
+const prior = existsSync(tomlPath) ? readFileSync(tomlPath, "utf8") : "";
+const NAME  = (prior.match(/^name\s*=\s*"([^"]*)"/m) || [])[1] || "{{NAME}}";
+const TITLE = (prior.match(/TITLE\s*=\s*"([^"]*)"/m) || [])[1] || "{{TITLE}}";
+
+// --- regenerate every adapter file from templates, injecting preserved values ---
+mkdirSync(join(dir, "content"), { recursive: true });     // ensure authored dir exists (untouched if present)
+const fill = s => s.replaceAll("{{NAME}}", NAME).replaceAll("{{TITLE}}", TITLE);
+for (const f of readdirSync(plugin)) {
+  const out = f === "gitignore" ? ".gitignore" : f;       // stored dotless in the plugin; dotted in the target
+  writeFileSync(join(dir, out), fill(readFileSync(join(plugin, f), "utf8")));
+}
+
+// --- manifest from authored content (gen owns _manifest.js; content is read-only to us) ---
+execFileSync("node", [join(ENGINE, "gen.mjs"), "--src", "content", "--target", "_manifest.js"],
+  { cwd: dir, stdio: "inherit" });
+
+// --- first-scaffold notice: values with no prior source stay as placeholders ---
+const todo = [];
+if (NAME  === "{{NAME}}")  todo.push("name");
+if (TITLE === "{{TITLE}}") todo.push("TITLE");
+console.log(`emit: ${target} → ${dir}/  (adapter files regenerated)`);
+if (todo.length) console.log(`  fill in ${todo.join(" and ")} in ${dir}/wrangler.toml before deploy`);