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import fs from 'fs-extra';

import {join} from 'path';

import execa from 'execa';

import inquirer from 'inquirer';

import Listr, { ListrTask } from 'listr';

import semver from 'semver';

const rootDir = join(__dirname, '..');

const packageJsonPath = join(rootDir, 'package.json');

const packageLockJsonPath = join(rootDir, 'package-lock.json');

const cmdArgs = process.argv.slice(2);

const isPublishRelease = cmdArgs.includes('--publish');

const isDryRun = cmdArgs.includes('--dry-run');

const isAnyBranch = cmdArgs.includes('--any-branch');

const isYolo = cmdArgs.includes('--yolo');

function runTasks(newVersion: string, releaseTag: string, isPublishRelease: boolean) {

const pkg = readPkg();

const tasks: ListrTask[] = [];

tasks.push(

{

title: 'Check current branch',

task: () => execa('git', ['symbolic-ref', '--short', 'HEAD']).then(({stdout}) => {

if (stdout !== 'master') {

if (isAnyBranch) {

console.log(`Not on "master" branch, currently on "${stdout}".`);

} else {

throw new Error(`Not on "master" branch, currently on "${stdout}". Use --any-branch to publish anyway.`);

}

}

})

},

{

title: 'Check local working tree',

task: () => execa('git', ['status', '--porcelain']).then(({stdout}) => {

if (stdout !== '') {

if (isYolo) {

console.log('Unclean working tree.');

} else {

throw new Error('Unclean working tree. Commit or stash changes first.');

}

}

})

},

{

title: 'Check remote history',

task: () => execa('git', ['rev-list', '--count', '--left-only', '@{u}...HEAD']).then(({stdout}) => {

if (stdout !== '0') {

if (isAnyBranch) {

console.log('Remote history differs.');

} else {

throw new Error('Remote history differs. Please pull changes.');

}

}

})

}

);

if (!isPublishRelease) {

tasks.push(

{

title: `Set package.json version to ${newVersion}`,

task: () => {

const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));

packageJson.version = newVersion;

fs.writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2) + '\n');

const packageLockJson = JSON.parse(fs.readFileSync(packageLockJsonPath, 'utf8'));

packageLockJson.version = newVersion;

fs.writeFileSync(packageLockJsonPath, JSON.stringify(packageLockJson, null, 2) + '\n');

}

},

{

title: `Build`,

task: () => execa('npm', ['run', 'build'], { cwd: rootDir })

},

{

title: 'Run tests',

task: () => execa('npm', ['test'], { cwd: rootDir })

},

{

title: `Generate Changelog`,

task: () => execa('npm', ['run', 'changelog'], { cwd: rootDir }),

}

);

}

if (isPublishRelease) {

tasks.push(

{

title: `Publish ionicons ${newVersion} (${releaseTag})`,

task: () => {

const args = ['publish'].concat(releaseTag ? ['--tag', releaseTag] : []);

if (isDryRun) {

console.log('[dry-run] npm', args.join(' '));

} else {

return execa('npm', args, { cwd: rootDir });

}

}

},

{

title: 'Tagging the latest commit',

task: () => {

const args = ['tag', `v${newVersion}`];

if (isDryRun) {

console.log('[dry-run] git', args.join(' '));

} else {

return execa('git', args, { cwd: rootDir });

}

}

},

{

title: 'Pushing to Github',

task: () => {

const args = ['push', '--follow-tags'];

if (isDryRun) {

console.log('[dry-run] git', args.join(' '));

} else {

return execa('git', args, { cwd: rootDir });

}

}

}

);

}

const listr = new Listr(tasks);

listr.run()

.then(() => {

if (isPublishRelease) {

console.log(`\n ${pkg.name} ${newVersion} published!! 🎉\n`);

} else {

console.log(`\n ${pkg.name} ${newVersion} prepared, check the diffs and commit 🕵️\n`);

}

})

.catch(err => {

console.error(err);

process.exit(0);

});

}

async function prepareUI() {

const pkg = readPkg();

const oldVersion = pkg.version;

console.log(`\nPrepare to publish ${pkg.name} (currently ${oldVersion}) ${isDryRun ? '[dry-run]' : ''}\n`);

const prompts = [

{

type: 'list',

name: 'version',

message: 'Select semver increment or specify new version',

pageSize: SEMVER_INCREMENTS.length + 2,

choices: SEMVER_INCREMENTS

.map(inc => ({

name: `${inc} ${prettyVersionDiff(oldVersion, inc)}`,

value: inc

})),

filter: (input: any) => isValidVersionInput(input) ? getNewVersion(oldVersion, input) : input

},

{

type: 'confirm',

name: 'confirm',

message: (answers: any) => {

return `Prepare release ${answers.version}. Continue?`;

}

}

];

await inquirer

.prompt(prompts)

.then(answers => {

if (answers.confirm){

const newVersion = answers.version;

return runTasks(newVersion, null, false);

}

})

.catch(err => {

console.error(err);

process.exit(0);

});

}

async function publishUI() {

const pkg = readPkg();

console.log(`\nPublish ${pkg.name} ${pkg.version} ${isDryRun ? '[dry-run]' : ''}\n`);

const prompts = [

{

type: 'list',

name: 'tag',

message: 'How should this pre-release version be tagged in npm?',

when: () => isPrereleaseVersion(pkg.version),

choices: () => execa('npm', ['view', '--json', pkg.name, 'dist-tags'])

.then(({stdout}) => {

return Object.keys(JSON.parse(stdout))

.filter(tag => tag !== 'latest')

.map(tag => {

return {

name: tag,

value: tag

}

});

})

},

{

type: 'confirm',

name: 'confirm',

message: (answers: any) => {

return `Will publish ${pkg.name} ${pkg.version} and tag this release as "${answers.tag}". Continue?`;

}

}

];

await inquirer

.prompt(prompts)

.then(answers => {

if (answers.confirm){

return runTasks(pkg.version, answers.tag, true);

}

})

.catch(err => {

console.error(err);

process.exit(0);

});

}

const SEMVER_INCREMENTS = ['patch', 'minor', 'major', 'prepatch', 'preminor', 'premajor', 'prerelease'];

const PRERELEASE_VERSIONS = ['prepatch', 'preminor', 'premajor', 'prerelease'];

const isValidVersion = (input: string) => Boolean(semver.valid(input));

const isValidVersionInput = (input: string) => SEMVER_INCREMENTS.indexOf(input) !== -1 || isValidVersion(input);

const isPrereleaseVersion = (version: string) => PRERELEASE_VERSIONS.indexOf(version) !== -1 || Boolean(semver.prerelease(version));

function getNewVersion(oldVersion: string, input: any): string {

if (!isValidVersionInput(input)) {

throw new Error(`Version should be either ${SEMVER_INCREMENTS.join(', ')} or a valid semver version.`);

}

return SEMVER_INCREMENTS.indexOf(input) === -1 ? input : semver.inc(oldVersion, input);

};

const readPkg = (): any => JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));

function prettyVersionDiff(oldVersion: any, inc: any) {

const newVersion = getNewVersion(oldVersion, inc).split('.');

oldVersion = oldVersion.split('.');

let firstVersionChange = false;

const output = [];

for (let i = 0; i < newVersion.length; i++) {

if ((newVersion[i] !== oldVersion[i] && !firstVersionChange)) {

output.push(newVersion[i]);

firstVersionChange = true;

} else if (newVersion[i].indexOf('-') >= 1) {

let preVersion = [];

preVersion = newVersion[i].split('-');

output.push(`${preVersion[0]}-${preVersion[1]}`);

} else {

output.push(newVersion[i]);

}

}

return output.join('.');

}

(async () => {

try {

if (isPublishRelease) {

await publishUI();

} else {

await prepareUI();

}

} catch (e) {

console.error(e);

process.exit(1);

}

})();