A script to just update instUI

Closes: CORE-1709

This is what our Jenkins job to pull in every instui RC commit will use

Test plan:
* run `yarn upgrade-instructure-ui`
* it should make a commit that has new entries in yarn.lock for all the
  instUI packages that uses the latest rc version on the npm registry
* it should not affect anything else besides yarn.lock

Change-Id: I78cce6e801015819c4e4b27e26ede352deceebb9
Reviewed-on: https://gerrit.instructure.com/160435
Tested-by: Jenkins
Reviewed-by: Brent Burgoyne <bburgoyne@instructure.com>
Product-Review: Ryan Shaw <ryan@instructure.com>
QA-Review: Ryan Shaw <ryan@instructure.com>

package.json

@@ -102,6 +102,7 @@
   },
   "devDependencies": {
     "@sentry/webpack-plugin": "^1.5.2",
+    "@yarnpkg/lockfile": "^1.0.2",
     "axe-core": "~2.1.7",
     "babel-cli": "^6",
     "babel-core": "^6",
@@ -229,7 +230,8 @@
     "jspec": "./spec/jspec.sh",
     "jspec-watch": "./spec/jspec.sh --watch",
     "a11y-report": "./spec/jspec.sh --a11y",
-    "upgrade-and-dedupe": "rm -rf yarn.lock node_modules && yes 1 | yarn install --flat --production --ignore-scripts && git checkout package.json && yarn install && git add yarn.lock"
+    "upgrade-and-dedupe": "rm -rf yarn.lock node_modules && yes 1 | yarn install --flat --production --ignore-scripts && git checkout package.json && yarn install && git add yarn.lock",
+    "upgrade-instructure-ui": "script/upgrade-instructure-ui"
   },
   "resolutions": {
     "@instructure/ui-a11y": "5.16.0-rc.4",

script/upgrade-instructure-ui

@@ -0,0 +1,59 @@
+#!/usr/bin/env node
+
+/*
+ * Copyright (C) 2018 - present Instructure, Inc.
+ *
+ * This file is part of Canvas.
+ *
+ * Canvas is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the Free
+ * Software Foundation, version 3 of the License.
+ *
+ * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Affero General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Removes all "@instructure/ui-<whatever>" entries from yarn.lock so that the
+ * next time you run yarn it uses all of the latest versions available on npm
+ */
+
+const fs = require('fs')
+const lockfile = require('@yarnpkg/lockfile')
+const packageJson = require('../package.json')
+const {promisify} = require('util')
+const exec = promisify(require('child_process').exec)
+
+const yarnFile = fs.readFileSync('yarn.lock', 'utf8')
+const yarnJson = lockfile.parse(yarnFile)
+
+console.log('Removing "@instructue" entries from yarn.lock and configuring package.json "resolutions" for all instUI stuff...')
+const promises = Object.keys(yarnJson.object)
+  .filter(k => k.startsWith('@instructure'))
+  .map(async k => {
+    delete yarnJson.object[k]
+    const pkgName = `@${k.split('@')[1]}`
+    if (!packageJson.resolutions[pkgName]) {
+      const latestRcOnRegistry = (await exec(`npm view ${pkgName} dist-tags.rc`)).stdout.trim()
+      packageJson.resolutions[pkgName] = `${latestRcOnRegistry}`
+    }
+  })
+
+Promise.all(promises).then(async () => {
+  fs.writeFileSync('yarn.lock', lockfile.stringify(yarnJson.object), 'utf8')
+  fs.writeFileSync('package.json', JSON.stringify(packageJson, null, 2), 'utf8')
+  console.log('Running `yarn` to install new package versions...')
+  await exec(`yarn --ignore-scripts`)
+  console.log('Cleaning up "resolutions" from package.json...')
+  await exec(`git checkout package.json`)
+  await exec(`yarn`)
+  await exec(`git add yarn.lock`)
+  console.log('Commiting changes...')
+  await exec(`git commit -m "upgrade instUI to the latest rc"`)
+  console.log('Made a commit to upgrade instUI to the latest rc. You should push it to gerrit.')
+})

yarn.lock

@@ -782,6 +782,10 @@
     "@webassemblyjs/wast-parser" "1.5.13"
     long "^3.2.0"
 
+"@yarnpkg/lockfile@^1.0.2":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@yarnpkg/lockfile/-/lockfile-1.0.2.tgz#833d163680a151d2441a2489f5fe5fa87ac87726"
+
 JSONStream@^0.8.4:
   version "0.8.4"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-0.8.4.tgz#91657dfe6ff857483066132b4618b62e8f4887bd"