semantic-release/lib/get-last-release.js

38 lines
1.3 KiB
JavaScript

const {isUndefined} = require('lodash');
const semver = require('semver');
const {makeTag} = require('./utils');
/**
* Last release.
*
* @typedef {Object} LastRelease
* @property {string} version The version number of the last release.
* @property {string} [gitHead] The Git reference used to make the last release.
*/
/**
* Determine the Git tag and version of the last tagged release.
*
* - Filter out the branch tags that are not valid semantic version
* - Sort the versions
* - Retrive the highest version
*
* @param {Object} context semantic-release context.
* @param {Object} params Function parameters.
* @param {Object} params.before Find only releases with version number lower than this version.
*
* @return {LastRelease} The last tagged release or empty object if none is found.
*/
module.exports = ({branch: {tags, type}, options: {tagFormat}}, {before} = {}) => {
const [{version, gitTag, gitHead, channel} = {}] = tags
.filter(tag => type === 'prerelease' || !semver.prerelease(tag.version))
.filter(tag => isUndefined(before) || semver.lt(tag.version, before))
.sort((a, b) => semver.rcompare(a.version, b.version));
if (gitTag) {
return {version, gitTag, gitHead, channel, name: makeTag(tagFormat, version)};
}
return {};
};