55 lines
1.8 KiB
JavaScript
55 lines
1.8 KiB
JavaScript
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'use strict';
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const child = require('child_process');
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const semver = require('semver');
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const versionMatcher = /refs\/tags\/(\d+.+)$/mg;
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/**
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* Get a collection of all the previous "last major" versions sorted by semantic version.
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*
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* @param packageInfo injected from dgeni-packages/git
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* @param versionInfo injected from dgeni-packages/git
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* @returns an array of SemVer objects
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*/
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module.exports = function getPreviousMajorVersions(packageInfo, versionInfo) {
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return () => {
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// always use the remote tags as the local clone might not contain all commits when cloned with
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// `git clone --depth=...`
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const repoUrl = packageInfo.repository.url;
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const tagResults = child.spawnSync('git', ['ls-remote', '--tags', repoUrl], {encoding: 'utf8'});
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if (tagResults.status !== 0) {
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return [];
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}
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const majorVersions = {};
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tagResults.stdout.replace(versionMatcher, (_, tag) => {
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const version = semver.parse(tag);
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// Not interested in tags that do not match semver format.
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if (version === null) {
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return;
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}
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// Not interested in pre-release versions.
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if (version.prerelease !== null && version.prerelease.length > 0) {
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return;
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}
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// Only interested in versions that are earlier than the current major.
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if (version.major >= versionInfo.currentVersion.major) {
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return;
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}
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const currentMajor = majorVersions[version.major];
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if (currentMajor === undefined || semver.compare(version, currentMajor) === 1) {
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// This version is newer than the currently captured version for this major.
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majorVersions[version.major] = version;
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}
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});
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// Sort them in descending order
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return semver.sort(Object.values(majorVersions)).reverse();
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};
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};
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