Merge branch 'development' into fix/docImprovements

* development: (31 commits)
  Prettier ignore Metacoin artifacts
  Publish
  Updated CHANGELOGS
  Improve deployer error message
  Fix 0x.js tests
  Fix lint issue
  Simply export
  Move NULL_BYTES to @0xproject/utils
  Simplify the tests
  Fix lint error
  Add step to publishing that upload staging doc jsons, deploys staging website, opens every docs page and asks the dev to confirm that each one renders properly before publishing
  Fix web3Wrapper build command
  Add top-level `yarn lerna:stage_docs` to upload docJsons to the staging S3 bucket for all packages with a docs page
  Refactor publish script to have it's main execution body be lean and discrete steps
  Removed unused command
  Remove 0x.js test artifacts
  Fix tslint
  Move migrations into separate monorepo subpackage and hook it up to 0x.js and contracts
  Remove unused var
  Refactor RedundantRpcSubprovider into RedundantSubprovider
  ...

# Conflicts:
#	packages/react-docs/CHANGELOG.json

1 files changed, 99 insertions, 21 deletions

diff --git a/packages/monorepo-scripts/src/publish.ts b/packages/monorepo-scripts/src/publish.ts
index adc1de64a..21c8b72c9 100644
--- a/packages/monorepo-scripts/src/publish.ts
+++ b/packages/monorepo-scripts/src/publish.ts
@@ -1,18 +1,23 @@
 #!/usr/bin/env node
 
+import * as promisify from 'es6-promisify';
 import * as fs from 'fs';
 import lernaGetPackages = require('lerna-get-packages');
 import * as _ from 'lodash';
 import * as moment from 'moment';
+import opn = require('opn');
 import * as path from 'path';
 import { exec as execAsync, spawn } from 'promisify-child-process';
+import * as prompt from 'prompt';
 import semverDiff = require('semver-diff');
 import semverSort = require('semver-sort');
 
 import { constants } from './constants';
-import { Changelog, Changes, SemVerIndex, UpdatedPackage } from './types';
+import { Changelog, Changes, PackageToVersionChange, SemVerIndex, UpdatedPackage } from './types';
 import { utils } from './utils';
 
+const DOC_GEN_COMMAND = 'docs:json';
+const NPM_NAMESPACE = '@0xproject/';
 const IS_DRY_RUN = process.env.IS_DRY_RUN === 'true';
 const TODAYS_TIMESTAMP = moment().unix();
 const LERNA_EXECUTABLE = './node_modules/lerna/bin/lerna.js';
@@ -21,8 +26,95 @@ const semverNameToIndex: { [semver: string]: number } = {
     minor: SemVerIndex.Minor,
     major: SemVerIndex.Major,
 };
+const packageNameToWebsitePath: { [name: string]: string } = {
+    '0x.js': '0xjs',
+    'web3-wrapper': 'web3_wrapper',
+    contracts: 'contracts',
+    connect: 'connect',
+    'json-schemas': 'json-schemas',
+    deployer: 'deployer',
+    'sol-cov': 'sol-cov',
+    subproviders: 'subproviders',
+};
 
 (async () => {
+    // Fetch public, updated Lerna packages
+    const updatedPublicLernaPackages = await getUpdatedPublicLernaPackagesAsync();
+
+    await confirmDocPagesRenderAsync(updatedPublicLernaPackages);
+
+    // Update CHANGELOGs
+    const updatedPublicLernaPackageNames = _.map(updatedPublicLernaPackages, pkg => pkg.package.name);
+    utils.log(`Will update CHANGELOGs and publish: \n${updatedPublicLernaPackageNames.join('\n')}\n`);
+    const packageToVersionChange = await updateChangeLogsAsync(updatedPublicLernaPackages);
+
+    // Push changelog changes to Github
+    if (!IS_DRY_RUN) {
+        await pushChangelogsToGithubAsync();
+    }
+
+    // Call LernaPublish
+    utils.log('Version updates to apply:');
+    _.each(packageToVersionChange, (versionChange: string, packageName: string) => {
+        utils.log(`${packageName} -> ${versionChange}`);
+    });
+    utils.log(`Calling 'lerna publish'...`);
+    await lernaPublishAsync(packageToVersionChange);
+})().catch(err => {
+    utils.log(err);
+    process.exit(1);
+});
+
+async function confirmDocPagesRenderAsync(packages: LernaPackage[]) {
+    // push docs to staging
+    utils.log("Upload all docJson's to S3 staging...");
+    await execAsync(`yarn lerna:stage_docs`, { cwd: constants.monorepoRootPath });
+
+    // deploy website to staging
+    utils.log('Deploy website to staging...');
+    const pathToWebsite = `${constants.monorepoRootPath}/packages/website`;
+    await execAsync(`yarn deploy_staging`, { cwd: pathToWebsite });
+
+    const packagesWithDocs = _.filter(packages, pkg => {
+        const scriptsIfExists = pkg.package.scripts;
+        if (_.isUndefined(scriptsIfExists)) {
+            throw new Error('Found a public package without any scripts in package.json');
+        }
+        return !_.isUndefined(scriptsIfExists[DOC_GEN_COMMAND]);
+    });
+    _.each(packagesWithDocs, pkg => {
+        const name = pkg.package.name;
+        const nameWithoutPrefix = _.startsWith(name, NPM_NAMESPACE) ? name.split('@0xproject/')[1] : name;
+        const docSegmentIfExists = packageNameToWebsitePath[nameWithoutPrefix];
+        if (_.isUndefined(docSegmentIfExists)) {
+            throw new Error(
+                `Found package '${name}' with doc commands but no corresponding docSegment in monorepo_scripts
+package.ts. Please add an entry for it and try again.`,
+            );
+        }
+        const link = `${constants.stagingWebsite}/docs/${docSegmentIfExists}`;
+        // tslint:disable-next-line:no-floating-promises
+        opn(link);
+    });
+
+    prompt.start();
+    const message = 'Do all the doc pages render properly? (yn)';
+    const result = await promisify(prompt.get)([message]);
+    const didConfirm = result[message] === 'y';
+    if (!didConfirm) {
+        utils.log('Publish process aborted.');
+        process.exit(0);
+    }
+}
+
+async function pushChangelogsToGithubAsync() {
+    await execAsync(`git add . --all`, { cwd: constants.monorepoRootPath });
+    await execAsync(`git commit -m "Updated CHANGELOGS"`, { cwd: constants.monorepoRootPath });
+    await execAsync(`git push`, { cwd: constants.monorepoRootPath });
+    utils.log(`Pushed CHANGELOG updates to Github`);
+}
+
+async function getUpdatedPublicLernaPackagesAsync(): Promise<LernaPackage[]> {
     const updatedPublicPackages = await getPublicLernaUpdatedPackagesAsync();
     const updatedPackageNames = _.map(updatedPublicPackages, pkg => pkg.name);
 
@@ -30,10 +122,11 @@ const semverNameToIndex: { [semver: string]: number } = {
     const updatedPublicLernaPackages = _.filter(allLernaPackages, pkg => {
         return _.includes(updatedPackageNames, pkg.package.name);
     });
-    const updatedPublicLernaPackageNames = _.map(updatedPublicLernaPackages, pkg => pkg.package.name);
-    utils.log(`Will update CHANGELOGs and publish: \n${updatedPublicLernaPackageNames.join('\n')}\n`);
+    return updatedPublicLernaPackages;
+}
 
-    const packageToVersionChange: { [name: string]: string } = {};
+async function updateChangeLogsAsync(updatedPublicLernaPackages: LernaPackage[]): Promise<PackageToVersionChange> {
+    const packageToVersionChange: PackageToVersionChange = {};
     for (const lernaPackage of updatedPublicLernaPackages) {
         const packageName = lernaPackage.package.name;
         const changelogJSONPath = path.join(lernaPackage.location, 'CHANGELOG.json');
@@ -88,23 +181,8 @@ const semverNameToIndex: { [semver: string]: number } = {
         utils.log(`${packageName}: Updated CHANGELOG.md`);
     }
 
-    if (!IS_DRY_RUN) {
-        await execAsync(`git add . --all`, { cwd: constants.monorepoRootPath });
-        await execAsync(`git commit -m "Updated CHANGELOGS"`, { cwd: constants.monorepoRootPath });
-        await execAsync(`git push`, { cwd: constants.monorepoRootPath });
-        utils.log(`Pushed CHANGELOG updates to Github`);
-    }
-
-    utils.log('Version updates to apply:');
-    _.each(packageToVersionChange, (versionChange: string, packageName: string) => {
-        utils.log(`${packageName} -> ${versionChange}`);
-    });
-    utils.log(`Calling 'lerna publish'...`);
-    await lernaPublishAsync(packageToVersionChange);
-})().catch(err => {
-    utils.log(err);
-    process.exit(1);
-});
+    return packageToVersionChange;
+}
 
 async function lernaPublishAsync(packageToVersionChange: { [name: string]: string }) {
     // HACK: Lerna publish does not provide a way to specify multiple package versions via