ethers.js/misc/admin/src.ts/cmds/link.ts

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import fs from "fs";
import { dirname, resolve } from "path";
import { dirs, getDependencies, getDirname, getPackagePath, packages } from "../path";
function link(existing: string, path: string): void {
try {
const current = fs.readlinkSync(path);
// Alerady linked
if (current === existing) { return; }
fs.unlinkSync(path);
} catch (error) {
if (error.code !== "ENOENT") { throw error; }
}
// Link
const dir = dirname(path);
fs.mkdirSync(dir, { recursive: true });
fs.symlinkSync(existing, path);
}
(async function() {
const nodeModulesBase = resolve(dirs.root, ".package_node_modules");
// Make a symlink in the ROOT/node_mpdules to each package in this repo
packages.forEach((name) => {
// e.g. /node_modules/@ethersproject/abi => /packages/abi
link(getPackagePath(name), resolve(dirs.root, "node_modules", name));
// e.g. /packages/abi/node_modules => /.package_node_modules/abi/
const nodeModules = resolve(nodeModulesBase, getDirname(name));
fs.mkdirSync(nodeModules, { recursive: true });
link(nodeModules, resolve(getPackagePath(name), "node_modules"));
});
packages.forEach((name) => {
const nodeModules = resolve(nodeModulesBase, getDirname(name));
const deps = getDependencies(name);
Object.keys(deps).forEach((name) => {
link(resolve(dirs.root, "node_modules", name), resolve(nodeModules, name));
});
});
})();