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import keepAChangelog from 'keep-a-changelog';
import fs from 'fs';
import stringFormat from 'string-format';
const parser = keepAChangelog.parser;
const Release = keepAChangelog.Release;
/**
* Set a release version number to the latest release within the changelog, with date set to current date.
* The changelog follows keep a changelog format https://keepachangelog.com .
*
* @param {String} version: version value to set
* @param {Object} resource: resource configuration which contains type, path, and params
* @param {Object} opts: optional settings
* - dryRun: when true, changelog file won't be modified
* @param {Function} cb: standard cb(err, result) callback
*/
function setReleaseVersion(version, resource, opts, cb) {
const changelog = parser(fs.readFileSync(resource.path, 'UTF-8'));
changelog.tagNameBuilder = function (release) {
// Use tagFormat option to format the version to be used as SCM tag
const formattedVersion = stringFormat(opts.tagFormat, { version: release.version });
return formattedVersion;
};
const latestRelease = changelog.releases[0];
latestRelease.setVersion(version);
latestRelease.setDate(new Date());
if (!opts.dryRun) {
fs.writeFile(resource.path, changelog.toString(), cb);
} else {
cb();
}
}
/**
* Add a new release to the changelog having the post-release version and an unreleased date.
* The changelog follows keep a changelog format https://keepachangelog.com .
*
* @param {String} version: version value to set
* @param {Object} resource: resource configuration which contains type, path, and params
* @param {Object} opts: optional settings
* - dryRun: when true, changelog file won't be modified
* @param {Function} cb: standard cb(err, result) callback
*/
function setPostReleaseVersion(version, resource, opts, cb) {
const changelog = parser(fs.readFileSync(resource.path, 'UTF-8'));
changelog.tagNameBuilder = function (release) {
// Use tagFormat option to format the version to be used as SCM tag
const formattedVersion = stringFormat(opts.tagFormat, { version: release.version });
return formattedVersion;
};
const postRelease = new Release();
changelog.addRelease(postRelease);
if (!opts.dryRun) {
fs.writeFile(resource.path, changelog.toString(), cb);
} else {
cb();
}
}
/**
* Get version value from the changelog's latest release.
* The changelog follows keep a changelog format https://keepachangelog.com .
* It's common for the latest positioned version value for keep a changelog to be set to 'Unreleased'
* in order to indicate that it's the one that's currently in progress.
* Hence we need to handle two scenarios here:
* - when latest release has a version number, then use that as the current version
* - when latest release is 'Unreleased' (version is undefined after parsing), then use the previous release and append a '.0' suffix
* - otherwise defaults to '0.0.0'
*
* @param {Object} resource: resource configuration which contains type, path, and params
* @param {Function} cb: standard cb(err, result) callback
*/
function getVersion(resource, cb) {
function readCb(err, result) {
let version;
if (!err) {
const changelog = parser(result);
const latestRelease = changelog.releases[0];
const latestReleaseMinusOne = changelog.releases[1];
if (latestRelease.version) {
version = latestRelease.version;
} else if (latestReleaseMinusOne.version) {
version = latestReleaseMinusOne.version + '.0';
} else {
version = '0.0.0';
}
}
cb(err, version);
}
fs.readFile(resource.path, 'UTF-8', readCb);
}
const exports = {
setReleaseVersion: setReleaseVersion,
setPostReleaseVersion: setPostReleaseVersion,
getVersion: getVersion
};
export {
exports as default
};
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