snyk-docker-plugin
Version:
Snyk CLI docker plugin
73 lines • 2.8 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseExtraNames = exports.compareVersions = exports.VERSION_EXTRACTION_REGEX = exports.specifierValidRange = void 0;
function specifierValidRange(specifier, version) {
specifier =
specifier === "==" || specifier === "===" || specifier === "~="
? specifier.charAt(0)
: specifier;
if (specifier !== "~") {
return specifier;
}
// the tilde specifier in a requirements file means different things, depending on the
// way the version is provided. In order for the semver library to compare as expected,
// we need to change the specifier to something it understands.
// see https://peps.python.org/pep-0440/#compatible-release
const versionPartsLength = version.split(".").length;
return versionPartsLength === 2 ? "^" : "~";
}
exports.specifierValidRange = specifierValidRange;
// This regex is used to extract the "semver" part from the version string.
// See the tests for a better understanding (Also the reason why this is exported)
exports.VERSION_EXTRACTION_REGEX = /(?<VERSION>(\d+\.)*\d+).*/;
function compareArrays(v1, v2) {
const max = v1.length > v2.length ? v1.length : v2.length;
for (let i = 0; i < max; i++) {
if ((v1[i] || 0) < (v2[i] || 0)) {
return 1;
}
if ((v1[i] || 0) > (v2[i] || 0)) {
return -1;
}
}
return 0;
}
/**
* This function was taken from a different semver library and slightly modified.
* If passed to Array.prototype.sort, versions will be sorted in descending order.
*/
function compareVersions(version1, version2) {
const v1Match = exports.VERSION_EXTRACTION_REGEX.exec(version1);
const v2Match = exports.VERSION_EXTRACTION_REGEX.exec(version2);
if (v1Match === null || v2Match === null) {
return 0;
}
const v1 = v1Match
.groups.VERSION.split(".")
.map((part) => Number.parseInt(part, 10));
const v2 = v2Match
.groups.VERSION.split(".")
.map((part) => Number.parseInt(part, 10));
return compareArrays(v1, v2);
}
exports.compareVersions = compareVersions;
/**
* Parse extra names inside extras_list
* there can be multiple extras separated by comma
* see https://peps.python.org/pep-0508
*
* @param extras the contents of an extra list, inside (but not including) the square brackets
* @returns string array of names
*/
function parseExtraNames(extras = "") {
const extraNames = new Set();
for (const extra of extras.split(",")) {
const name = extra.trim();
if (name) {
extraNames.add(name);
}
}
return Array.from(extraNames);
}
exports.parseExtraNames = parseExtraNames;
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