add support for projects that use pnpm

src/licenseUtils.js

@@ -1,12 +1,12 @@
-const { readFileSync } = require("fs");
-const { resolve } = require("path");
+const { readFileSync, existsSync } = require("fs");
+const { resolve, dirname, join } = require("path");
 const glob = require("glob");
 const { template } = require("lodash");
 const satisfiesGlob = require("minimatch");
 const { satisfies: isSatisfiedVersion } = require("semver");
 const isValidLicense = require("spdx-expression-validate");
 const isSatisfiedLicense = require("spdx-satisfies");
-const wrap = require("wrap-ansi");
+const wrap = require("wrap-ansi").default || require("wrap-ansi");
 const LicenseError = require("./LicenseError");
 
 const licenseGlob = "LICEN@(C|S)E*";
@@ -42,16 +42,114 @@ const getLicenseName = pkg => {
   return "";
 };
 
+const parsePackageName = pnpmPackageDir => {
+  // Handle scoped packages like:
+  // @[email protected] -> @github/relative-time-element
+  // @[email protected]_@[email protected] -> @citation-js/plugin-csl
+  // [email protected] -> lodash
+
+  // Remove peer dependency part (everything after _)
+  let cleanPackageDir = pnpmPackageDir.split("_")[0];
+
+  // Find the last @ which separates the version
+  const lastAtIndex = cleanPackageDir.lastIndexOf("@");
+  if (lastAtIndex === -1) {
+    return cleanPackageDir; // No version specified
+  }
+
+  let nameWithScope = cleanPackageDir.substring(0, lastAtIndex);
+
+  // Handle scoped packages: replace + with /
+  if (nameWithScope.startsWith("@")) {
+    nameWithScope = nameWithScope.replace(/\+/g, "/");
+  }
+
+  return nameWithScope;
+};
+
+const findPackageJson = dependencyPath => {
+  const directPath = join(dependencyPath, "package.json");
+  if (existsSync(directPath)) {
+    return directPath;
+  }
+
+  // Handle pnpm .pnpm directory structure
+  const match = dependencyPath.match(/[/\\]\.pnpm[/\\]([^/\\]+)/);
+  if (match) {
+    const pnpmPackageDir = match[1];
+    const packageName = parsePackageName(pnpmPackageDir);
+
+    // For pnpm structure: .pnpm/package@version/node_modules/package/
+    const pnpmRoot = dependencyPath.substring(0, dependencyPath.indexOf(".pnpm"));
+    const pnpmBasePath = join(pnpmRoot, ".pnpm", pnpmPackageDir, "node_modules", packageName);
+    const pnpmPackageJsonPath = join(pnpmBasePath, "package.json");
+
+    if (existsSync(pnpmPackageJsonPath)) {
+      return pnpmPackageJsonPath;
+    }
+
+    const possiblePaths = [
+      join(dependencyPath, "node_modules", packageName, "package.json"),
+      join(dirname(dependencyPath), pnpmPackageDir, "node_modules", packageName, "package.json"),
+      join(
+        dirname(dirname(dependencyPath)),
+        pnpmPackageDir,
+        "node_modules",
+        packageName,
+        "package.json"
+      )
+    ];
+
+    for (const pnpmPath of possiblePaths) {
+      if (existsSync(pnpmPath)) {
+        return pnpmPath;
+      }
+    }
+  }
+
+  // Traverse up directory tree as fallback
+  let currentPath = dependencyPath;
+  let attempts = 0;
+  const maxAttempts = 5;
+
+  while (attempts < maxAttempts) {
+    const packageJsonPath = join(currentPath, "package.json");
+    if (existsSync(packageJsonPath)) {
+      return packageJsonPath;
+    }
+
+    const parentPath = dirname(currentPath);
+    if (parentPath === currentPath) break;
+    currentPath = parentPath;
+    attempts++;
+  }
+
+  return directPath;
+};
+
 const getLicenseInformationForDependency = dependencyPath => {
-  const pkg = require(`${dependencyPath}/package.json`);
-  return {
-    name: pkg.name,
-    version: pkg.version,
-    author: (pkg.author && pkg.author.name) || pkg.author,
-    repository: (pkg.repository && pkg.repository.url) || pkg.repository,
-    licenseName: getLicenseName(pkg),
-    licenseText: getLicenseContents(dependencyPath)
-  };
+  try {
+    const packageJsonPath = findPackageJson(dependencyPath);
+    const pkg = require(packageJsonPath);
+    const actualDependencyPath = dirname(packageJsonPath);
+
+    // Skip packages without proper names (likely internal or broken packages)
+    if (!pkg.name || pkg.name.startsWith(".")) {
+      return null;
+    }
+
+    return {
+      name: pkg.name,
+      version: pkg.version,
+      author: (pkg.author && pkg.author.name) || pkg.author,
+      repository: (pkg.repository && pkg.repository.url) || pkg.repository,
+      licenseName: getLicenseName(pkg),
+      licenseText: getLicenseContents(actualDependencyPath)
+    };
+  } catch (error) {
+    // Skip packages that can't be read
+    return null;
+  }
 };
 
 const getLicenseInformationForCompilation = (compilation, filter) => {
@@ -60,7 +158,10 @@ const getLicenseInformationForCompilation = (compilation, filter) => {
     const match = dependencyPath.match(filter);
     if (match) {
       const [, rootPath, dependencyName] = match;
-      memo[dependencyName] = getLicenseInformationForDependency(rootPath);
+      const licenseInfo = getLicenseInformationForDependency(rootPath);
+      if (licenseInfo) {
+        memo[dependencyName] = licenseInfo;
+      }
     }
     return memo;
   }, {});