full site update

node_modules/package-manager-detector/dist/detect.mjs

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+import fs from 'node:fs/promises';
+import path from 'node:path';
+import process from 'node:process';
+import { INSTALL_METADATA, LOCKS, AGENTS } from './constants.mjs';
+
+async function pathExists(path2, type) {
+  try {
+    const stat = await fs.stat(path2);
+    return type === "file" ? stat.isFile() : stat.isDirectory();
+  } catch {
+    return false;
+  }
+}
+function getUserAgent() {
+  const userAgent = process.env.npm_config_user_agent;
+  if (!userAgent) {
+    return null;
+  }
+  const name = userAgent.split("/")[0];
+  return AGENTS.includes(name) ? name : null;
+}
+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");
+}
+
+export { detect, getUserAgent };