53 lines
2.0 KiB
JavaScript
53 lines
2.0 KiB
JavaScript
const {escapeRegExp, template} = require('lodash');
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const semver = require('semver');
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const pLocate = require('p-locate');
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const debug = require('debug')('semantic-release:get-last-release');
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const {gitTags, isRefInHistory, gitTagHead} = require('./git');
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/**
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* Last release.
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*
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* @typedef {Object} LastRelease
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* @property {string} version The version number of the last release.
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* @property {string} [gitHead] The Git reference used to make the last release.
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*/
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/**
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* Determine the Git tag and version of the last tagged release.
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*
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* - Obtain all the tags referencing commits in the current branch history
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* - Filter out the ones that are not valid semantic version or doesn't match the `tagFormat`
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* - Sort the versions
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* - Retrive the highest version
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*
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* @param {String} tagFormat Git tag format.
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* @param {Object} logger Global logger.
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* @return {Promise<LastRelease>} The last tagged release or `undefined` if none is found.
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*/
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module.exports = async (tagFormat, logger) => {
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// Generate a regex to parse tags formatted with `tagFormat`
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// by replacing the `version` variable in the template by `(.+)`.
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// The `tagFormat` is compiled with space as the `version` as it's an invalid tag character,
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// so it's guaranteed to no be present in the `tagFormat`.
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const tagRegexp = `^${escapeRegExp(template(tagFormat)({version: ' '})).replace(' ', '(.+)')}`;
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const tags = (await gitTags())
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.map(tag => ({gitTag: tag, version: (tag.match(tagRegexp) || new Array(2))[1]}))
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.filter(
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tag => tag.version && semver.valid(semver.clean(tag.version)) && !semver.prerelease(semver.clean(tag.version))
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)
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.sort((a, b) => semver.rcompare(a.version, b.version));
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debug('found tags: %o', tags);
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const tag = await pLocate(tags, tag => isRefInHistory(tag.gitTag), {concurrency: 1, preserveOrder: true});
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if (tag) {
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logger.log('Found git tag %s associated with version %s', tag.gitTag, tag.version);
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return {gitHead: await gitTagHead(tag.gitTag), ...tag};
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}
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logger.log('No git tag version found');
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return {};
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};
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