const { yParser, execa, chalk } = require('@umijs/utils');

exports.latestTag = async () => {

const { stdout } = await execa('git', ['describe', '--abbrev=0', '--tags']);

return stdout;

};

const firstCommit = async () => {

const { stdout } = await execa('git', [

'rev-list',

'--max-parents=0',

'HEAD',

]);

return stdout;

};

exports.latestTagOrFirstCommit = async () => {

let latest;

try {

// In case a previous tag exists, we use it to compare the current repo status to.

latest = await exports.latestTag();

} catch (_) {

// Otherwise, we fallback to using the first commit for comparison.

latest = await firstCommit();

}

return latest;

};

exports.commitLogFromRevision = async (revision) => {

const { stdout } = await execa('git', [

'log',

'--format=%s %h',

`${revision}..HEAD`,

]);

return stdout;

};