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#!/usr/bin/env node
const fs = require('fs');
const execSync = require('child_process').execSync;
const ejs = require('ejs');
const _ = require('lodash');
const semver = require('semver');
const changelog = fs.readFileSync('platform/ios/CHANGELOG.md', 'utf8');
/*
Find current and immediately previous releases by parsing git tags.
*/
let currentVersion = execSync('git describe --tags --match=ios-v*.*.* --abbrev=0')
.toString()
.trim()
.replace('ios-v', '');
let gitTags = execSync('git tag --list ios-v*.*.*')
.toString()
.split('\n')
.map(function (tag) {
tag = tag.replace('ios-v', '').trim();
return semver.clean(tag);
});
let previousVersion = semver.maxSatisfying(gitTags, "<" + currentVersion);
/*
Parse the raw changelog text and split it into individual releases.
This regular expression:
- Matches lines starting with "## x.x.x".
- Groups the version number.
- Skips the (optional) release date.
- Groups the changelog content.
- Ends when another "## x.x.x" is found.
*/
const regex = /^## (\d+\.\d+\.\d+).*?\n(.+?)(?=\n^## \d+\.\d+\.\d+.*?\n)/gms;
let releaseNotes = [];
while (match = regex.exec(changelog)) {
releaseNotes.push({
'version': match[1],
'changelog': match[2].trim(),
});
}
/*
Match the current tag with the most appropriate release notes.
*/
const versionsInReleaseNotes = _.map(releaseNotes, 'version');
const bestReleaseNotesForCurrentVersion = semver.minSatisfying(versionsInReleaseNotes, ">=" + currentVersion);
const currentReleaseNotes = _.find(releaseNotes, { version: bestReleaseNotesForCurrentVersion });
/*
Fill and print the release notes template.
*/
const templatedReleaseNotes = ejs.render(fs.readFileSync('platform/ios/scripts/release-notes.md.ejs', 'utf8'), {
'CURRENTVERSION': currentVersion,
'PREVIOUSVERSION': previousVersion,
'CHANGELOG': currentReleaseNotes.changelog,
'isPrerelease': semver.prerelease(currentVersion)
});
process.stdout.write(templatedReleaseNotes);
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