Files
quixos-protocol/src/capability-language/scaffold-recipes.ts
T
Timothy J. Aveni 59735c5e38 Add checked React field bindings and Web Studio factories
Replace opaque props with checked generic presentation contracts and lazy typed
interface references. Generate readonly/writable field APIs and component checks.

Preserve CRDT editing through explicit resolved getter/setter contracts, binding-
fenced delta RPCs, native watches and replica-aware field adapters. Custom setters
retain semantic writes; storage snapshots never grant write authority. Cover
concurrent edits, lost acknowledgements, readonly contracts and authorization.

Add receiver-free static factory dispatch, state-field binding shorthand, and
conformance-based creation. Migrate TODO, editable scaffolds and authoring guides.
Verify language/codegen, SDK, RPC, browser lifecycle, local scaffolds, production
browser bundling and CRDT persistence with temporary PostgreSQL.
2026-09-16 16:49:09 -07:00

422 lines
20 KiB
TypeScript

import fs from "node:fs/promises";
import path from "node:path";
import { contentDigest } from "../capability-model/evolution.js";
import {
validateMigrationCatalog,
type MigrationCatalog,
type MigrationDeclaration,
} from "../capability-model/migrations.js";
import { formatQuixosLock, type GitSource } from "../resource-lock/index.js";
import { parseQx, walkSyntax } from "./source.js";
import type { StructuralRequest } from "./structural-plan.js";
import { addImplementation } from "./implementation-edit.js";
import { reactPlatformTypes } from "../bindings/react-platform.js";
type Source = { repository: string; commit: string };
type PackageEditModel = {
generatedBy: "qx-scaffold-v1";
name: string;
id: string;
revision: string;
exports: { name: string; id: string; file: string; migration?: boolean }[];
};
export type ScaffoldRecipe = {
template?: "typescript" | "typescript-react";
source: Source;
directory?: string;
name?: string;
id?: string;
revision?: string;
declaration?: string;
/** Initial authored files for a composed recipe; only used for a new package. */
initialFiles?: Record<string, string>;
tools?: { quixos: Source; protocol: Source; helpers: Source; sdk: Source };
nixifyPluginUrl?: string;
migration?: Omit<MigrationDeclaration, "implementation"> & { contracts: Record<string, unknown> };
};
const json = (value: unknown) => `${JSON.stringify(value, null, 2)}\n`;
const source = (value: Source): GitSource => {
if (!value || typeof value.repository !== "string" || typeof value.commit !== "string")
throw new Error("Scaffold requires an exact source identity; use qx-workspace from a registered repository");
const url = new URL(value.repository);
if (
url.protocol !== "https:" ||
url.username ||
url.password ||
url.search ||
url.hash ||
!/^(?:[0-9a-f]{40}|[0-9a-f]{64})$/.test(value.commit)
)
throw new Error("Scaffolds require credential-free HTTPS sources and full exact commits");
return { resolver: "git", ...value };
};
const nixSource = (value: Source) =>
`git+${source(value).repository}?ref=refs/tags/quixos-reachability/${value.commit}&rev=${value.commit}`;
const nixString = (value: string) => JSON.stringify(value).replaceAll("${", "\\${");
const safeName = (name: string | undefined): string => {
if (!name || !/^[A-Za-z_][A-Za-z0-9_]*$/.test(name)) throw new Error("Scaffold requires a simple authored name");
return name;
};
const ownedJson = async <T>(root: string, file: string): Promise<T> => {
const target = path.join(root, file);
if (!(await fs.realpath(target)).startsWith(`${await fs.realpath(root)}/`))
throw new Error("Scaffold input escapes repository");
const value = JSON.parse(await fs.readFile(target, "utf8"));
if (value.generatedBy !== "qx-scaffold-v1") throw new Error(`Not scaffold-owned: ${file}`);
return value;
};
/** Recipes describe structural edits; planStructure owns validation/journaling.
* Implementation files are created once; later edits preserve authored wiring. */
export const scaffoldRecipe = async (
root: string,
command: "package" | "function" | "migration" | "refresh",
spec: ScaffoldRecipe,
): Promise<StructuralRequest> => {
if (command === "refresh")
throw new Error(
"Scaffold refresh has been removed. Edit declarations and typed server wiring directly, then run qx-workspace check. Use scaffold function to add a declaration and handler together.",
);
source(spec.source);
if (spec.directory && !/^[A-Za-z0-9_-][A-Za-z0-9_.-]*(?:\/[A-Za-z0-9_-][A-Za-z0-9_.-]*)*$/.test(spec.directory))
throw new Error("Scaffold directory must be contained");
const prefix = spec.directory ? `${spec.directory}/` : "";
const files: StructuralRequest["files"] = [];
const create = (file: string, content: string) => files.push({ file: prefix + file, create: content });
const generated = (file: string, content: string) => files.push({ file: prefix + file, generated: content });
let packageModel: PackageEditModel;
let catalog: MigrationCatalog & { generatedBy: "qx-scaffold-v1" };
if (command === "package") {
const name = safeName(spec.name);
if (spec.template && !["typescript", "typescript-react"].includes(spec.template))
throw new Error("Unknown package template");
const react = spec.template === "typescript-react";
if (!spec.id || !spec.revision || !spec.tools)
throw new Error("Package scaffold requires id, revision, and exact quixos/protocol/helpers/sdk tool sources");
Object.values(spec.tools).forEach(source);
packageModel = { generatedBy: "qx-scaffold-v1", name, id: spec.id, revision: spec.revision, exports: [] };
catalog = { generatedBy: "qx-scaffold-v1", schemaVersion: 1, contracts: {}, migrations: [] };
if (react)
packageModel.exports.push({ name: "sourceGet", id: `export:${name}:source`, file: "src/impl/sourceGet.ts" });
create(
"package.qx",
`package ${name} id ${JSON.stringify(spec.id)} revision ${JSON.stringify(spec.revision)} {\n${react ? ` function sourceGet id ${JSON.stringify(`export:${name}:source`)} : unit -> string;\n` : ""}}\n`,
);
create("quixos.lock", formatQuixosLock({ formatVersion: 1, quixos: source(spec.tools.quixos), resources: [] }));
create(
"package.json",
json({
name: `@quixos/${name.toLowerCase()}`,
version: "0.1.0",
private: true,
type: "module",
packageManager: "yarn@4.18.0",
scripts: { build: "tsc -p tsconfig.json", typecheck: "tsc --noEmit" },
dependencies: {
"@quixos/camino-package-runtime": `${spec.tools.sdk.repository}#commit=${spec.tools.sdk.commit}`,
},
devDependencies: {
"@types/node": "^24",
typescript: "^7.0.2",
...(react ? { react: "^18.3.1", "@types/react": "^18.3.12", esbuild: "^0.25.12" } : {}),
},
}),
);
create(
"tsconfig.json",
json({
compilerOptions: {
target: "ES2023",
module: "NodeNext",
moduleResolution: "NodeNext",
strict: true,
types: ["node", ...(react ? ["react"] : [])],
outDir: "dist",
rootDir: "src",
skipLibCheck: true,
...(react ? { jsx: "react-jsx", esModuleInterop: true } : {}),
},
include: ["src/**/*.ts", "src/**/*.tsx"],
}),
);
if (react) {
create(
"src/component.tsx",
`// Add a checked props export, select it in quixos.check.json options.react,\n// then use its generated ReactResults type. Scaffold bundle does this for you.\nexport default function Component(_props: {camino: Record<string, never>; render: unknown; dispatch: (action: unknown) => void}) {\n return <section><h1>${name}</h1></section>;\n}\n`,
);
create(
"src/impl/sourceGet.ts",
`import componentSource from "../component.js?browser-source";\nimport type {Implementation} from "../gen/qx.js";\nexport const handler: Implementation["sourceGet"] = () => componentSource;\n`,
);
create(
"src/browser-assets.d.ts",
`declare module "*?browser-source" { const source: string; export default source; }\ndeclare module "*.css" {}\n`,
);
create("src/gen/web-studio-react-runtime.d.ts", reactPlatformTypes);
}
create(".gitignore", "node_modules/\ndist/\n.quixos/\nresult\n.yarn/install-state.gz\n");
create(
".yarnrc.yml",
`nodeLinker: node-modules\nenableScripts: true\nnpmMinimalAgeGate: 0\napprovedGitRepositories:\n - ${JSON.stringify(spec.tools.sdk.repository)}\nsupportedArchitectures:\n os: [current, linux]\n cpu: [current, x64, arm64]\n libc: [current, glibc]\n`,
);
const nixifyPluginUrl =
spec.nixifyPluginUrl ??
"https://gitea-external.egads.tutti.syntaxblitz.net/quixos/yarn-plugin-nixify-patched/raw/commit/4528fdd20b30d869262443b3f044549810e75fb8/dist/yarn-plugin-nixify.js";
const plugin = new URL(nixifyPluginUrl);
if (
plugin.protocol !== "https:" ||
plugin.username ||
plugin.password ||
plugin.search ||
plugin.hash ||
!/\/commit\/[a-f0-9]{40,64}\//.test(plugin.pathname)
)
throw new Error("Nixify plugin must have an exact credential-free HTTPS commit URL");
generated("quixos.toolchain.json", json({ generatedBy: "qx-scaffold-v1", nixifyPluginUrl }));
create(
"quixos.check.json",
json({
backend: "typescript",
bindingOutput: "src/gen/qx.ts",
...(react
? {
options: { react: { propsExports: [] } },
}
: {}),
}),
);
create(
"flake.nix",
`{
inputs.protocol.url = ${nixString(nixSource(spec.tools.protocol))};
inputs.nixpkgs.follows = "protocol/nixpkgs";
inputs.flake-utils.follows = "protocol/flake-utils";
inputs.helpers = { url = ${nixString(nixSource(spec.tools.helpers))}; flake = false; };
outputs = inputs@{ self, protocol, nixpkgs, flake-utils, helpers, ... }:
(import (toString helpers + "/quixos-package-helpers.nix")).mkCaminoTsYarnNixifyFlake {
inherit inputs nixpkgs flake-utils; packageRoot = ./.;
bundle = { entry = ${JSON.stringify(react ? "src/server.ts" : "dist/server.js")}; ${react ? "browserSources = true;" : ""} };
migrationEntrypoint = "dist/migrate.js";
installServer = { libexecName = ${JSON.stringify(name.toLowerCase())}; descriptorPath = "descriptor.quixos-package.txtpb"; };
};
}\n`,
);
} else {
catalog = await ownedJson<typeof catalog>(root, prefix + "quixos.migrations.json");
// Derive the edit model from authored declarations; it is never persisted.
const authored = await fs.readFile(path.join(root, prefix, "package.qx"), "utf8");
const syntax = parseQx(authored);
if (syntax.diagnostics.length)
throw new Error("Cannot scaffold into an invalid package.qx; fix the reported syntax first");
const declaration = [...walkSyntax(syntax.root)].find((node) => node.kind === "packageResourceDecl");
if (!declaration) throw new Error("Expected a package declaration");
const text = (node: typeof declaration) => authored.slice(node.start, node.end);
const literals = declaration.children.filter((node) => node.kind === "stringLiteral");
packageModel = {
generatedBy: "qx-scaffold-v1",
name: text(declaration.children.find((node) => node.kind === "identifier")!),
id: JSON.parse(text(literals[0])),
revision: JSON.parse(text(literals[1])),
exports: [],
};
for (const node of walkSyntax(declaration)) {
if (!["packageFunctionExport", "packageOperationExport", "packageConstructorExport"].includes(node.kind))
continue;
const name = safeName(text(node.children.find((child) => child.kind === "identifier")!));
const id = JSON.parse(text(node.children.find((child) => child.kind === "stringLiteral")!));
if (packageModel.exports.some((entry) => entry.id === id || entry.name === name))
throw new Error("Duplicate package export name or ID");
const migration = catalog.migrations.find((entry) => entry.implementation.exportId === id);
packageModel.exports.push({
name,
id,
file: migration?.implementation.file ?? `src/impl/${name}.ts`,
...(migration ? { migration: true } : {}),
});
}
{
const name = safeName(spec.name);
if (!spec.id || packageModel.exports.some((entry) => entry.id === spec.id || entry.name === name))
throw new Error("New export requires a unique name and ID");
const declaration = spec.declaration ?? `function ${name} id ${JSON.stringify(spec.id)} : unit -> unit;`;
const parsed = parseQx(`package Scaffold id "scaffold" revision "scaffold@1" { ${declaration} }`);
const exports = [...walkSyntax(parsed.root)].filter((node) =>
["packageFunctionExport", "packageOperationExport", "packageConstructorExport"].includes(node.kind),
);
if (parsed.diagnostics.length || exports.length !== 1)
throw new Error("Expected one valid package export declaration");
const wrapped = `package Scaffold id "scaffold" revision "scaffold@1" { ${declaration} }`;
const node = exports[0];
const derived = [...walkSyntax(node)].some((entry) => entry.kind === "eventClause");
if (command === "migration" && (node.kind !== "packageFunctionExport" || spec.declaration))
throw new Error(
"Migration exports use the scaffold's unit function declaration and dedicated migration entrypoint",
);
if (
wrapped.slice(
node.children.find((child) => child.kind === "identifier")!.start,
node.children.find((child) => child.kind === "identifier")!.end,
) !== name ||
JSON.parse(
wrapped.slice(
node.children.find((child) => child.kind === "stringLiteral")!.start,
node.children.find((child) => child.kind === "stringLiteral")!.end,
),
) !== spec.id
)
throw new Error("Declaration name/ID must match its registration");
files.push({
file: prefix + "package.qx",
edits: [
{ operation: "append", parent: { kind: "packageResourceDecl", id: packageModel.id }, source: declaration },
],
});
const file = `src/${command === "migration" ? "migrations" : "impl"}/${name}.ts`;
const implementation =
command === "migration"
? `import type {MigrationContext} from "@quixos/camino-package-runtime";\nexport const handler = async (_context: MigrationContext): Promise<void> => { throw new Error(${JSON.stringify(`Implement migration ${name}`)}); };\n`
: `import type {Implementation} from "../gen/qx.js";\nexport const handler: Implementation[${JSON.stringify(name)}] = ${derived ? '{kind: "derived", get: ' : ""}async (_context) => { throw new Error(${JSON.stringify(`Implement ${name}`)}); }${derived ? "}" : ""};\n`;
create(file, implementation);
packageModel.exports.push({ name, id: spec.id, file, ...(command === "migration" ? { migration: true } : {}) });
if (command === "migration") {
if (!spec.migration)
throw new Error("Migration scaffold requires retained contracts and an explicit transition");
const { contracts, ...transition } = spec.migration;
for (const [digest, contract] of Object.entries(contracts)) {
if (
contentDigest(contract) !== digest ||
(catalog.contracts[digest] && contentDigest(catalog.contracts[digest]) !== digest)
)
throw new Error("Retained migration contract mismatch");
catalog.contracts[digest] = contract;
}
catalog.migrations.push({
...transition,
implementation: { exportId: spec.id, file, digest: contentDigest(implementation) },
});
}
}
}
validateMigrationCatalog(catalog, new Set(packageModel.exports.map((entry) => entry.id)));
generated("quixos.migrations.json", json(catalog));
if (command !== "package") {
const entry = packageModel.exports.at(-1)!;
const file = prefix + "src/server.ts";
const before = await fs.readFile(path.join(root, file), "utf8");
files.push({
file,
expected: before,
replace: addImplementation(
before,
"createRuntime",
entry.name,
`./${entry.file.slice(4, -3)}.js`,
!!entry.migration,
),
});
if (entry.migration) {
const file = prefix + "src/migrate.ts";
const before = await fs.readFile(path.join(root, file), "utf8");
files.push({
file,
expected: before,
replace: addImplementation(before, "serveMigration", entry.id, `./${entry.file.slice(4, -3)}.js`),
});
}
} else {
create(
"src/server.ts",
`import {servePackageRuntime} from "@quixos/camino-package-runtime";\nimport {createRuntime} from "./gen/qx.js";\n` +
packageModel.exports
.filter((entry) => !entry.migration)
.map(
(entry, index) =>
`import {handler as impl${index}} from ${JSON.stringify(`./${entry.file.slice(4, -3)}.js`)};\n`,
)
.join("") +
`servePackageRuntime(createRuntime({\n` +
packageModel.exports
.map(
(entry) =>
` ${JSON.stringify(entry.name)}: ${entry.migration ? 'async () => { throw new Error("Migration-only export"); }' : `impl${packageModel.exports.filter((value) => !value.migration).indexOf(entry)}`},`,
)
.join("\n") +
`\n}));\n`,
);
const migrations = packageModel.exports.filter((entry) => entry.migration);
create(
"src/migrate.ts",
`import {serveMigration} from "@quixos/camino-package-runtime";\n` +
migrations
.map(
(entry, index) =>
`import {handler as impl${index}} from ${JSON.stringify(`./${entry.file.slice(4, -3)}.js`)};\n`,
)
.join("") +
`await serveMigration({${migrations.map((entry, index) => `${JSON.stringify(entry.id)}: impl${index}`).join(", ")}});\n`,
);
}
generated(
"descriptor.quixos-package.txtpb",
`# Generated by qx-scaffold-v1\npackage_id: ${JSON.stringify(packageModel.id)}\npackage_revision_id: ${JSON.stringify(packageModel.revision)}\nruntime_protocol_version: "quixos-capabilities-v1"\n` +
packageModel.exports
.map(
(entry) =>
`exports: { export_id: ${JSON.stringify(entry.id)} runtime_symbol: ${JSON.stringify(entry.name)} }\n`,
)
.join(""),
);
if (spec.initialFiles) {
if (command !== "package") throw new Error("initialFiles is only valid when creating a package");
const authored = spec.initialFiles["package.qx"];
if (authored !== undefined) {
const parsed = parseQx(authored);
const declaration = [...walkSyntax(parsed.root)].find((n) => n.kind === "packageResourceDecl");
const literals = declaration?.children.filter((n) => n.kind === "stringLiteral") ?? [];
const identifier = declaration?.children.find((n) => n.kind === "identifier");
if (
parsed.diagnostics.length ||
literals.length !== 2 ||
!identifier ||
authored.slice(identifier.start, identifier.end) !== spec.name ||
JSON.parse(authored.slice(literals[0].start, literals[0].end)) !== spec.id ||
JSON.parse(authored.slice(literals[1].start, literals[1].end)) !== spec.revision
)
throw new Error("Initial package declaration must match the provisioned name, ID and revision");
}
for (const [file, content] of Object.entries(spec.initialFiles)) {
if (
typeof content !== "string" ||
["quixos.lock", "flake.nix", "quixos.toolchain.json", "package.json"].includes(file)
)
throw new Error(`Not an initial authored file: ${file}`);
if (file === "quixos.check.json") {
const check = JSON.parse(content);
if (
check.backend !== "typescript" ||
check.bindingOutput !== "src/gen/qx.ts" ||
Object.keys(check).some((key) => !["backend", "bindingOutput", "options"].includes(key))
)
throw new Error(
"Initial check configuration may customize binding options, not the scaffold verification backend or output",
);
}
const existing = files.findIndex((entry) => entry.file === prefix + file);
if (existing >= 0) files.splice(existing, 1);
create(file, content);
}
// A composed React recipe supplies its own modules and complete server.
if (reactRecipe(spec)) {
for (const file of ["src/component.tsx", "src/impl/sourceGet.ts", "descriptor.quixos-package.txtpb"])
if (!(file in spec.initialFiles)) {
const index = files.findIndex((entry) => entry.file === prefix + file);
if (index >= 0) files.splice(index, 1);
}
}
}
return { kind: "package", source: spec.source, resourceRoot: spec.directory, validation: "syntax", files };
};
const reactRecipe = (spec: ScaffoldRecipe) =>
spec.template === "typescript-react" && spec.initialFiles?.["package.qx"] && spec.initialFiles?.["src/server.ts"];