Timothy J. Aveni
54 lines
2.2 KiB
JavaScript
54 lines
2.2 KiB
JavaScript
import fs from "node:fs/promises";
|
|
import path from "node:path";
|
|
import { createHash } from "node:crypto";
|
|
|
|
async function packages(directory) {
|
|
const result = new Map();
|
|
for (const entry of await fs.readdir(directory)) {
|
|
if (entry.startsWith(".")) continue;
|
|
if (entry.startsWith("@")) {
|
|
for (const name of await fs.readdir(path.join(directory, entry)))
|
|
result.set(`${entry}/${name}`, path.join(directory, entry, name));
|
|
} else result.set(entry, path.join(directory, entry));
|
|
}
|
|
return result;
|
|
}
|
|
async function packageDigest(directory) {
|
|
const digest = createHash("sha256");
|
|
async function visit(relative) {
|
|
for (const entry of (await fs.readdir(path.join(directory, relative), { withFileTypes: true })).sort((a, b) =>
|
|
a.name.localeCompare(b.name),
|
|
)) {
|
|
if (entry.name === "node_modules") continue;
|
|
const name = path.join(relative, entry.name),
|
|
file = path.join(directory, name);
|
|
if (entry.isDirectory()) await visit(name);
|
|
else {
|
|
const bytes = await fs.readFile(file);
|
|
digest.update(JSON.stringify([name, bytes.length]));
|
|
digest.update(bytes);
|
|
}
|
|
}
|
|
}
|
|
await visit("");
|
|
return digest.digest("hex");
|
|
}
|
|
/** Merge at package granularity: a scope such as @types is not a reserved package. */
|
|
export async function installDependencies({ destination, application, defaults = [], selected = {}, reserved = [] }) {
|
|
const entries = new Map();
|
|
for (const root of defaults) for (const [name, file] of await packages(root)) entries.set(name, file);
|
|
for (const [name, file] of Object.entries(selected)) entries.set(name, file);
|
|
if (application)
|
|
for (const [name, file] of await packages(application)) {
|
|
if (reserved.includes(name)) {
|
|
const canonical = entries.get(name);
|
|
if (!canonical || (await packageDigest(file)) !== (await packageDigest(canonical)))
|
|
throw Error("Application dependencies cannot substitute selected React/client types or checked SDK: " + name);
|
|
} else entries.set(name, file);
|
|
}
|
|
for (const [name, file] of entries) {
|
|
await fs.mkdir(path.dirname(path.join(destination, name)), { recursive: true });
|
|
await fs.symlink(file, path.join(destination, name));
|
|
}
|
|
}
|