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import process from 'node:process';
import fs from 'node:fs/promises';
import path, { resolve } from 'node:path';
import { existsSync } from 'node:fs';
import { x } from 'tinyexec';
const AGENTS = [
"npm",
"yarn",
"yarn@berry",
"pnpm",
"pnpm@6",
"bun",
"deno"
];
const LOCKS = {
"bun.lock": "bun",
"bun.lockb": "bun",
"deno.lock": "deno",
"pnpm-lock.yaml": "pnpm",
"pnpm-workspace.yaml": "pnpm",
"yarn.lock": "yarn",
"package-lock.json": "npm",
"npm-shrinkwrap.json": "npm"
};
const INSTALL_METADATA = {
"node_modules/.deno/": "deno",
"node_modules/.pnpm/": "pnpm",
"node_modules/.yarn-state.yml": "yarn",
// yarn v2+ (node-modules)
"node_modules/.yarn_integrity": "yarn",
// yarn v1
"node_modules/.package-lock.json": "npm",
".pnp.cjs": "yarn",
// yarn v3+ (pnp)
".pnp.js": "yarn",
// yarn v2 (pnp)
"bun.lock": "bun",
"bun.lockb": "bun"
};
async function pathExists(path2, type) {
try {
const stat = await fs.stat(path2);
return type === "file" ? stat.isFile() : stat.isDirectory();
} catch {
return false;
}
}
function* lookup(cwd = process.cwd()) {
let directory = path.resolve(cwd);
const { root } = path.parse(directory);
while (directory && directory !== root) {
yield directory;
directory = path.dirname(directory);
}
}
async function parsePackageJson(filepath, onUnknown) {
return !filepath || !pathExists(filepath, "file") ? null : await handlePackageManager(filepath, onUnknown);
}
async function detect(options = {}) {
const {
cwd,
strategies = ["lockfile", "packageManager-field", "devEngines-field"],
onUnknown
} = options;
let stopDir;
if (typeof options.stopDir === "string") {
const resolved = path.resolve(options.stopDir);
stopDir = (dir) => dir === resolved;
} else {
stopDir = options.stopDir;
}
for (const directory of lookup(cwd)) {
for (const strategy of strategies) {
switch (strategy) {
case "lockfile": {
for (const lock of Object.keys(LOCKS)) {
if (await pathExists(path.join(directory, lock), "file")) {
const name = LOCKS[lock];
const result = await parsePackageJson(path.join(directory, "package.json"), onUnknown);
if (result)
return result;
else
return { name, agent: name };
}
}
break;
}
case "packageManager-field":
case "devEngines-field": {
const result = await parsePackageJson(path.join(directory, "package.json"), onUnknown);
if (result)
return result;
break;
}
case "install-metadata": {
for (const metadata of Object.keys(INSTALL_METADATA)) {
const fileOrDir = metadata.endsWith("/") ? "dir" : "file";
if (await pathExists(path.join(directory, metadata), fileOrDir)) {
const name = INSTALL_METADATA[metadata];
const agent = name === "yarn" ? isMetadataYarnClassic(metadata) ? "yarn" : "yarn@berry" : name;
return { name, agent };
}
}
break;
}
}
}
if (stopDir?.(directory))
break;
}
return null;
}
function getNameAndVer(pkg) {
const handelVer = (version) => version?.match(/\d+(\.\d+){0,2}/)?.[0] ?? version;
if (typeof pkg.packageManager === "string") {
const [name, ver] = pkg.packageManager.replace(/^\^/, "").split("@");
return { name, ver: handelVer(ver) };
}
if (typeof pkg.devEngines?.packageManager?.name === "string") {
return {
name: pkg.devEngines.packageManager.name,
ver: handelVer(pkg.devEngines.packageManager.version)
};
}
return void 0;
}
async function handlePackageManager(filepath, onUnknown) {
try {
const pkg = JSON.parse(await fs.readFile(filepath, "utf8"));
let agent;
const nameAndVer = getNameAndVer(pkg);
if (nameAndVer) {
const name = nameAndVer.name;
const ver = nameAndVer.ver;
let version = ver;
if (name === "yarn" && ver && Number.parseInt(ver) > 1) {
agent = "yarn@berry";
version = "berry";
return { name, agent, version };
} else if (name === "pnpm" && ver && Number.parseInt(ver) < 7) {
agent = "pnpm@6";
return { name, agent, version };
} else if (AGENTS.includes(name)) {
agent = name;
return { name, agent, version };
} else {
return onUnknown?.(pkg.packageManager) ?? null;
}
}
} catch {
}
return null;
}
function isMetadataYarnClassic(metadataPath) {
return metadataPath.endsWith(".yarn_integrity");
}
// src/detect.ts
async function detectPackageManager(cwd = process.cwd()) {
const result = await detect({
cwd,
onUnknown(packageManager) {
console.warn("[@antfu/install-pkg] Unknown packageManager:", packageManager);
return void 0;
}
});
return result?.agent || null;
}
async function installPackage(names, options = {}) {
const detectedAgent = options.packageManager || await detectPackageManager(options.cwd) || "npm";
const [agent] = detectedAgent.split("@");
if (!Array.isArray(names))
names = [names];
const args = (typeof options.additionalArgs === "function" ? options.additionalArgs(agent, detectedAgent) : options.additionalArgs) || [];
if (options.preferOffline) {
if (detectedAgent === "yarn@berry")
args.unshift("--cached");
else
args.unshift("--prefer-offline");
}
if (agent === "pnpm") {
args.unshift(
/**
* Prevent pnpm from removing installed devDeps while `NODE_ENV` is `production`
* @see https://pnpm.io/cli/install#--prod--p
*/
"--prod=false"
);
if (existsSync(resolve(options.cwd ?? process.cwd(), "pnpm-workspace.yaml"))) {
args.unshift("-w");
}
}
return x(
agent,
[
agent === "yarn" ? "add" : "install",
options.dev ? "-D" : "",
...args,
...names
].filter(Boolean),
{
nodeOptions: {
stdio: options.silent ? "ignore" : "inherit",
cwd: options.cwd
},
throwOnError: true
}
);
}
export { detectPackageManager, installPackage };
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