chore(all): release script

.scripts/prepare.js

@@ -0,0 +1,280 @@
+/**
+ * Deploy script adopted from https://github.com/sindresorhus/np
+ * MIT License (c) Sindre Sorhus (sindresorhus.com)
+ */
+const chalk = require('chalk');
+const execa = require('execa');
+const inquirer = require('inquirer');
+const Listr = require('listr');
+const fs = require('fs-extra');
+const path = require('path');
+const semver = require('semver');
+
+const rootDir = path.join(__dirname, '../');
+
+async function main() {
+  try {
+    await checkGit();
+
+    const version = await askVersion();
+    await checkTagVersion(version);
+    await prepareProject('core', version);
+    await link('core', 'angular');
+    await prepareProject('angular', version);
+
+    await generateChangeLog(version);
+    process.exit(0);
+  } catch(err) {
+    console.log('\n', chalk.red(err), '\n');
+    process.exit(1);
+  }
+}
+
+async function checkGit() {
+  const listr = new Listr([
+    {
+      title: 'Check npm version',
+      skip: () => isVersionLower('6.0.0', process.version),
+      task: () => execa.stdout('npm', ['version', '--json']).then(json => {
+        const versions = JSON.parse(json);
+        if (!satisfies(versions.npm, '>=2.15.8 <3.0.0 || >=3.10.1')) {
+          throw new Error(`npm@${versions.npm} has known issues publishing when running Node.js 6. Please upgrade npm or downgrade Node and publish again. https://github.com/npm/npm/issues/5082`);
+        }
+      })
+    },
+    {
+      title: 'Check current branch',
+      task: () => execa.stdout('git', ['symbolic-ref', '--short', 'HEAD']).then(branch => {
+        if (branch !== 'master' && branch !== 'core') {
+          throw new Error('Not on `master` or `core` branch');
+        }
+      })
+    },
+    {
+      title: 'Check local working tree',
+      task: () => execa.stdout('git', ['status', '--porcelain']).then(status => {
+        if (status !== '') {
+          throw new Error('Unclean working tree. Commit or stash changes first.');
+        }
+      })
+    },
+    {
+      title: 'Check remote history',
+      task: () => execa.stdout('git', ['rev-list', '--count', '--left-only', '@{u}...HEAD']).then(result => {
+        if (result !== '0') {
+          throw new Error('Remote history differs. Please pull changes.');
+        }
+      })
+    }
+  ]);
+  await listr.run();
+}
+
+async function checkTagVersion(version) {
+  const listr = new Listr([
+    {
+      title: 'Check git tag existence',
+      task: () => execa('git', ['fetch'])
+        .then(() => {
+          return execa.stdout('npm', ['config', 'get', 'tag-version-prefix']);
+        })
+        .then(
+          output => {
+            tagPrefix = output;
+          },
+          () => {}
+        )
+        .then(() => execa.stdout('git', ['rev-parse', '--quiet', '--verify', `refs/tags/${tagPrefix}${version}`]))
+        .then(
+          output => {
+            if (output) {
+              throw new Error(`Git tag \`${tagPrefix}${version}\` already exists.`);
+            }
+          },
+          err => {
+            // Command fails with code 1 and no output if the tag does not exist, even though `--quiet` is provided
+            // https://github.com/sindresorhus/np/pull/73#discussion_r72385685
+            if (err.stdout !== '' || err.stderr !== '') {
+              throw err;
+            }
+          }
+        )
+    },
+  ]);
+  await listr.run();
+}
+
+
+async function askVersion() {
+  const pkg = readPkg('core');
+  const oldVersion = pkg.version;
+
+  const prompts = [
+    {
+      type: 'list',
+      name: 'version',
+      message: 'Select semver increment or specify new version',
+      pageSize: SEMVER_INCREMENTS.length + 2,
+      choices: SEMVER_INCREMENTS
+        .map(inc => ({
+          name: `${inc}   ${prettyVersionDiff(oldVersion, inc)}`,
+          value: inc
+        }))
+        .concat([
+          new inquirer.Separator(),
+          {
+            name: 'Other (specify)',
+            value: null
+          }
+        ]),
+      filter: input => isValidVersionInput(input) ? getNewVersion(oldVersion, input) : input
+    },
+    {
+      type: 'input',
+      name: 'version',
+      message: 'Version',
+      when: answers => !answers.version,
+      filter: input => isValidVersionInput(input) ? getNewVersion(pkg.version, input) : input,
+      validate: input => {
+        if (!isValidVersionInput(input)) {
+          return 'Please specify a valid semver, for example, `1.2.3`. See http://semver.org';
+        } else if (!isVersionGreater(oldVersion, input)) {
+          return `Version must be greater than ${oldVersion}`;
+        }
+
+        return true;
+      }
+    },
+    {
+      type: 'confirm',
+      name: 'confirm',
+      message: answers => {
+        return `Will bump from ${chalk.cyan(oldVersion)} to ${chalk.cyan(answers.version)}. Continue?`;
+      }
+    }
+  ];
+
+  const {version} = await inquirer.prompt(prompts);
+  return version;
+}
+
+async function prepareProject(project, version) {
+  const projectRoot = path.join(rootDir, project);
+  const pkg = readPkg(project);
+  const oldVersion = pkg.version;
+
+  console.log(`\nPrepare to publish a new version of ${chalk.bold.magenta(pkg.name)} ${chalk.dim(`(${oldVersion})`)}\n`);
+
+
+  const listr = new Listr([
+    {
+      title: 'Validate version',
+      task: () => {
+        if (!isVersionGreater(pkg.version, version)) {
+          throw new Error(`New version \`${newVersion}\` should be higher than current version \`${pkg.version}\``);
+        }
+      }
+    },
+    {
+      title: 'Cleanup',
+      task: () => fs.remove('node_modules')
+    },
+    {
+      title: 'Install npm dependencies',
+      task: () => execa('npm', ['install'], { cwd: projectRoot }),
+    },
+    {
+      title: 'Run lint',
+      task: () => execa('npm', ['run', 'lint'], { cwd: projectRoot })
+    },
+    {
+      title: 'Build ' + pkg.name,
+      task: () => execa('npm', ['run', 'build'], { cwd: projectRoot })
+    },
+    {
+      title: 'Run tests',
+      task: () => execa('npm', ['test'], { cwd: projectRoot })
+    },
+    {
+      title: 'Set package.json version',
+      task: () => execa('npm', ['version', version], { cwd: projectRoot }),
+    },
+  ], { showSubtasks: false });
+  await listr.run();
+}
+
+
+async function generateChangeLog() {
+  const listr = new Listr([{
+    title: 'Generate CHANGELOG',
+    task: () => execa('npm', ['run', 'changelog'], { cwd: rootDir }),
+  }]);
+  await listr.run();
+}
+
+
+const SEMVER_INCREMENTS = ['patch', 'minor', 'major', 'prepatch', 'preminor', 'premajor', 'prerelease'];
+const PRERELEASE_VERSIONS = ['prepatch', 'preminor', 'premajor', 'prerelease'];
+
+const isValidVersion = input => Boolean(semver.valid(input));
+
+const isValidVersionInput = input => SEMVER_INCREMENTS.indexOf(input) !== -1 || isValidVersion(input);
+
+const isPrereleaseVersion = version => PRERELEASE_VERSIONS.indexOf(version) !== -1 || Boolean(semver.prerelease(version));
+
+function getNewVersion(oldVersion, input) {
+  if (!isValidVersionInput(input)) {
+    throw new Error(`Version should be either ${SEMVER_INCREMENTS.join(', ')} or a valid semver version.`);
+  }
+
+  return SEMVER_INCREMENTS.indexOf(input) === -1 ? input : semver.inc(oldVersion, input);
+};
+
+const isVersionGreater = (oldVersion, newVersion) => {
+  if (!isValidVersion(newVersion)) {
+    throw new Error('Version should be a valid semver version.');
+  }
+
+  return semver.gt(newVersion, oldVersion);
+};
+
+const isVersionLower = (oldVersion, newVersion) => {
+  if (!isValidVersion(newVersion)) {
+    throw new Error('Version should be a valid semver version.');
+  }
+
+  return semver.lt(newVersion, oldVersion);
+};
+
+const satisfies = (version, range) => semver.satisfies(version, range);
+
+
+function prettyVersionDiff(oldVersion, inc) {
+  const newVersion = getNewVersion(oldVersion, inc).split('.');
+  oldVersion = oldVersion.split('.');
+  let firstVersionChange = false;
+  const output = [];
+
+  for (let i = 0; i < newVersion.length; i++) {
+    if ((newVersion[i] !== oldVersion[i] && !firstVersionChange)) {
+      output.push(`${chalk.dim.cyan(newVersion[i])}`);
+      firstVersionChange = true;
+    } else if (newVersion[i].indexOf('-') >= 1) {
+      let preVersion = [];
+      preVersion = newVersion[i].split('-');
+      output.push(`${chalk.dim.cyan(`${preVersion[0]}-${preVersion[1]}`)}`);
+    } else {
+      output.push(chalk.reset.dim(newVersion[i]));
+    }
+  }
+  return output.join(chalk.reset.dim('.'));
+}
+
+
+function readPkg(project) {
+  const packageJsonPath = path.join(rootDir, project, 'package.json');
+  return JSON.parse(fs.readFileSync(packageJsonPath, 'utf-8'));
+}
+
+
+main();