snyk-nodejs-lockfile-parser
Version:
Generate a dep tree given a lockfile
54 lines • 2.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.rewriteAliasesInNpmLockV2 = void 0;
const rewriteAliasesInNpmLockV2 = (lockfilePackages) => {
// 1. Rewrite top level "" packages in "".dependencies
const rootPkg = lockfilePackages[''];
const mutatedRootPkg = [];
const aliasedPackages = [];
const lockFileToReturn = lockfilePackages;
if (rootPkg && rootPkg.dependencies) {
const dependencies = rootPkg.dependencies;
for (const pkgName in rootPkg.dependencies) {
if (rootPkg.dependencies[pkgName].startsWith('npm:')) {
const aliasName = rootPkg.dependencies[pkgName].substring(4, rootPkg.dependencies[pkgName].lastIndexOf('@'));
const aliasVersion = rootPkg.dependencies[pkgName].substring(rootPkg.dependencies[pkgName].lastIndexOf('@') + 1, rootPkg.dependencies[pkgName].length);
dependencies[aliasName] = aliasVersion;
mutatedRootPkg.push(pkgName);
aliasedPackages.push(pkgName);
}
else {
dependencies[pkgName] = rootPkg.dependencies[pkgName];
}
}
lockFileToReturn[''].dependencies = dependencies;
}
// 2. Rewrite alias packages
for (const pkgName in lockfilePackages) {
if (pkgName != '' &&
lockfilePackages[pkgName].name &&
mutatedRootPkg.includes(pkgName.replace('node_modules/', ''))) {
lockFileToReturn[`node_modules/${lockfilePackages[pkgName].name}`] =
lockfilePackages[pkgName];
delete lockFileToReturn[pkgName];
}
// rewrite possible references in transitive deps
if (pkgName != '' &&
lockfilePackages[pkgName] &&
lockfilePackages[pkgName].dependencies) {
for (const depName in lockfilePackages[pkgName].dependencies) {
if (aliasedPackages.includes(depName) &&
lockfilePackages[pkgName].dependencies[depName].startsWith('npm:')) {
const aliasName = lockfilePackages[pkgName].dependencies[depName].substring(4, lockfilePackages[pkgName].dependencies[depName].lastIndexOf('@'));
const aliasVersion = lockfilePackages[pkgName].dependencies[depName].substring(lockfilePackages[pkgName].dependencies[depName].lastIndexOf('@') +
1, lockfilePackages[pkgName].dependencies[depName].length);
lockFileToReturn[pkgName].dependencies[aliasName] = aliasVersion;
delete lockFileToReturn[pkgName].dependencies[depName];
}
}
}
}
return lockFileToReturn;
};
exports.rewriteAliasesInNpmLockV2 = rewriteAliasesInNpmLockV2;
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