1 | const {isUndefined} = require('lodash');
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2 | const semver = require('semver');
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3 | const {makeTag, isSameChannel} = require('./utils');
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4 |
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5 | /**
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6 | * Last release.
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7 | *
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8 | * @typedef {Object} LastRelease
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9 | * @property {string} version The version number of the last release.
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10 | * @property {string} gitHead The Git reference used to make the last release.
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11 | * @property {string} gitTag The git tag associated with the last release.
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12 | * @property {string} channel The channel on which of the last release was published.
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13 | * @property {string} name The name of the last release.
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14 | */
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15 |
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16 | /**
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17 | * Determine the Git tag and version of the last tagged release.
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18 | *
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19 | * - Filter out the branch tags that are not valid semantic version
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20 | * - Sort the versions
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21 | * - Retrive the highest version
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22 | *
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23 | * @param {Object} context semantic-release context.
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24 | * @param {Object} params Function parameters.
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25 | * @param {Object} params.before Find only releases with version number lower than this version.
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26 | *
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27 | * @return {LastRelease} The last tagged release or empty object if none is found.
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28 | */
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29 | module.exports = ({branch, options: {tagFormat}}, {before} = {}) => {
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30 | const [{version, gitTag, channels} = {}] = branch.tags
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31 | .filter(
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32 | (tag) =>
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33 | ((branch.type === 'prerelease' && tag.channels.some((channel) => isSameChannel(branch.channel, channel))) ||
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34 | !semver.prerelease(tag.version)) &&
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35 | (isUndefined(before) || semver.lt(tag.version, before))
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36 | )
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37 | .sort((a, b) => semver.rcompare(a.version, b.version));
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38 |
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39 | if (gitTag) {
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40 | return {version, gitTag, channels, gitHead: gitTag, name: makeTag(tagFormat, version)};
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41 | }
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42 |
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43 | return {};
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44 | };
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