ci: add a publishing script for travis deployment

Author: hansl

scripts/publish/publish.js

@@ -0,0 +1,125 @@
+#!/usr/bin/env node
+'use strict';
+
+/* eslint-disable no-console */
+const { packages } = require('../../lib/packages');
+const { yellow } = require('chalk');
+const fs = require('fs');
+const http = require('http');
+const path = require('path');
+const semver = require('semver');
+const spawn = require('child_process').spawn;
+
+function _exec(options, cmd, args) {
+  let stdout = '';
+  let stderr = '';
+  const cwd = options.cwd || process.cwd();
+
+  args = args.filter(x => x !== undefined);
+  const spawnOptions = { cwd };
+
+  if (process.platform.startsWith('win')) {
+    args.unshift('/c', cmd);
+    cmd = 'cmd.exe';
+    spawnOptions['stdio'] = 'pipe';
+  }
+
+  const childProcess = spawn(cmd, args, spawnOptions);
+  childProcess.stdout.on('data', (data) => {
+    stdout += data.toString('utf-8');
+    data.toString('utf-8')
+      .split(/[\n\r]+/)
+      .filter(line => line !== '')
+      .forEach(line => console.log('  ' + line));
+  });
+  childProcess.stderr.on('data', (data) => {
+    stderr += data.toString('utf-8');
+    data.toString('utf-8')
+      .split(/[\n\r]+/)
+      .filter(line => line !== '')
+      .forEach(line => console.error(yellow('  ' + line)));
+  });
+
+  // Create the error here so the stack shows who called this function.
+  const err = new Error(`Running "${cmd} ${args.join(' ')}" returned error code `);
+  return new Promise((resolve, reject) => {
+    childProcess.on('exit', (error) => {
+      if (!error) {
+        resolve({ stdout, stderr });
+      } else {
+        err.message += `${error}...\n\nSTDOUT:\n${stdout}\n`;
+        reject(err);
+      }
+    });
+  });
+}
+
+
+
+Promise.resolve()
+  .then(() => {
+    // Login into NPM.
+    const NpmToken = process.env['NPM_TOKEN'];
+    if (!NpmToken) {
+      throw new Error('Need an NPM_TOKEN to be able to log into NPM.');
+    }
+
+    fs.writeFileSync(path.join(process.env['HOME'], '.npmrc'),
+      `//registry.npmjs.org/:_authToken=${NpmToken}\n`);
+  })
+  // .then(() => runTool('publish', 'build'))
+  .then(() => Promise.all(Object.keys(packages).map(name => {
+    const pkg = packages[name];
+    const version = require(pkg.packageJson).version;
+    const cwd = pkg.dist;
+
+    return new Promise((resolve, reject) => {
+      const url = `http://registry.npmjs.org/${name.replace(/\//g, '%2F')}`;
+      const request = http.request(url, response => {
+        let data = '';
+
+        response.on('data', chunk => data += chunk);
+        response.on('end', () => {
+          const json = JSON.parse(data);
+          resolve(json);
+        });
+        response.on('error', err => reject(err));
+      });
+
+      request.end();
+    })
+      .then(json => {
+        // Verify that the package is newer that latest, minor or next, or skip.  This promise
+        // will release with an array of dist-tags.
+        if (json['name'] !== name) {
+          return null;
+        }
+        const { latest, next } = json['dist-tags'];
+        const isNext = semver.eq(version, next);
+        const gtNext = semver.gt(version, next);
+        const isLatest = semver.eq(version, latest);
+
+        if (isNext || isLatest) {
+          return null;
+        } else if (gtNext) {
+          return 'next';
+        } else {
+          return 'latest';
+        }
+      })
+      .then(distTag => {
+        if (!distTag) {
+          return;
+        }
+
+        console.log(`Publishing ${name} @ ${version}...`);
+        return _exec({ cwd }, 'npm', ['publish', '--tag', distTag]);
+      });
+  })))
+  .then(() => {
+    fs.writeFileSync(path.join(process.env['HOME'], '.npmrc'), '');
+  }, err => {
+    fs.writeFileSync(path.join(process.env['HOME'], '.npmrc'), '');
+    console.error(err);
+    process.exit(1);
+  });