snyk-nodejs-lockfile-parser
Version:
Generate a dep tree given a lockfile
59 lines • 2.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getNpmLockfileVersion = exports.getYarnLockfileVersion = exports.getLockfileVersionFromFile = exports.NodeLockfileVersion = void 0;
const fs_1 = require("fs");
const errors_1 = require("./errors");
var NodeLockfileVersion;
(function (NodeLockfileVersion) {
NodeLockfileVersion["NpmLockV1"] = "NPM_LOCK_V1";
NodeLockfileVersion["NpmLockV2"] = "NPM_LOCK_V2";
NodeLockfileVersion["NpmLockV3"] = "NPM_LOCK_V3";
NodeLockfileVersion["YarnLockV1"] = "YARN_LOCK_V1";
NodeLockfileVersion["YarnLockV2"] = "YARN_LOCK_V2";
})(NodeLockfileVersion = exports.NodeLockfileVersion || (exports.NodeLockfileVersion = {}));
const getLockfileVersionFromFile = (targetFile) => {
const lockFileContents = (0, fs_1.readFileSync)(targetFile, 'utf-8');
if (targetFile.endsWith('package-lock.json')) {
return getNpmLockfileVersion(lockFileContents);
}
else if (targetFile.endsWith('yarn.lock')) {
return getYarnLockfileVersion(lockFileContents);
}
else {
throw new errors_1.InvalidUserInputError(`Unknown lockfile ${targetFile}. ` +
'Please provide either package-lock.json or yarn.lock.');
}
};
exports.getLockfileVersionFromFile = getLockfileVersionFromFile;
function getYarnLockfileVersion(lockFileContents) {
if (lockFileContents.includes('__metadata')) {
return NodeLockfileVersion.YarnLockV2;
}
else {
return NodeLockfileVersion.YarnLockV1;
}
}
exports.getYarnLockfileVersion = getYarnLockfileVersion;
function getNpmLockfileVersion(lockFileContents) {
try {
const lockfileJson = JSON.parse(lockFileContents);
const lockfileVersion = lockfileJson.lockfileVersion || null;
switch (lockfileVersion) {
case null:
case 1:
return NodeLockfileVersion.NpmLockV1;
case 2:
return NodeLockfileVersion.NpmLockV2;
case 3:
return NodeLockfileVersion.NpmLockV3;
default:
throw new errors_1.InvalidUserInputError(`Unsupported npm lockfile version in package-lock.json. ` +
'Please provide a package-lock.json with lockfileVersion 1, 2 or 3');
}
}
catch (e) {
throw new errors_1.InvalidUserInputError(`Problem parsing package-lock.json - make sure the package-lock.json is a valid JSON file`);
}
}
exports.getNpmLockfileVersion = getNpmLockfileVersion;
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