10 files changed, 152 insertions, 80 deletions
diff --git a/vendor/twbs/bootstrap/build/.eslintrc.json b/vendor/twbs/bootstrap/build/.eslintrc.json
index 76e7f37b6..e406f9f69 100644
--- a/vendor/twbs/bootstrap/build/.eslintrc.json
+++ b/vendor/twbs/bootstrap/build/.eslintrc.json
@@ -12,7 +12,6 @@
     "func-style": "off",
     "no-console": "off",
     "no-magic-numbers": "off",
-    "no-process-env": "off",
     "no-process-exit": "off",
     "no-sync": "off",
     "spaced-comment": "off"
diff --git a/vendor/twbs/bootstrap/build/banner.js b/vendor/twbs/bootstrap/build/banner.js
index 453fc3b6e..df82ff32e 100644
--- a/vendor/twbs/bootstrap/build/banner.js
+++ b/vendor/twbs/bootstrap/build/banner.js
@@ -7,7 +7,7 @@ function getBanner(pluginFilename) {
   return `/*!
   * Bootstrap${pluginFilename ? ` ${pluginFilename}` : ''} v${pkg.version} (${pkg.homepage})
   * Copyright 2011-${year} ${pkg.author}
-  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   */`
 }
 
diff --git a/vendor/twbs/bootstrap/build/build-plugins.js b/vendor/twbs/bootstrap/build/build-plugins.js
index abcbc5e2f..3829bb294 100644
--- a/vendor/twbs/bootstrap/build/build-plugins.js
+++ b/vendor/twbs/bootstrap/build/build-plugins.js
@@ -1,28 +1,26 @@
+#!/usr/bin/env node
+
 /*!
  * Script to build our plugins to use them separately.
- * Copyright 2019 The Bootstrap Authors
- * Copyright 2019 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Copyright 2020 The Bootstrap Authors
+ * Copyright 2020 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 'use strict'
 
-const path    = require('path')
-const rollup  = require('rollup')
-const babel   = require('rollup-plugin-babel')
-const banner  = require('./banner.js')
+const path = require('path')
+const rollup = require('rollup')
+const { babel } = require('@rollup/plugin-babel')
+const banner = require('./banner.js')
 
-const TEST    = process.env.NODE_ENV === 'test'
+const TEST = process.env.NODE_ENV === 'test'
 const plugins = [
   babel({
-    exclude: 'node_modules/**', // Only transpile our source code
-    externalHelpersWhitelist: [ // Include only required helpers
-      'defineProperties',
-      'createClass',
-      'inheritsLoose',
-      'defineProperty',
-      'objectSpread'
-    ]
+    // Only transpile our source code
+    exclude: 'node_modules/**',
+    // Inline the required helpers in each file
+    babelHelpers: 'inline'
   })
 ]
 const bsPlugins = {
@@ -41,7 +39,7 @@ const bsPlugins = {
 }
 const rootPath = TEST ? '../js/coverage/dist/' : '../js/dist/'
 
-function build(plugin) {
+const build = async (plugin) => {
   console.log(`Building ${plugin} plugin...`)
 
   const external = ['jquery', 'popper.js']
@@ -63,23 +61,32 @@ function build(plugin) {
   }
 
   const pluginFilename = `${plugin.toLowerCase()}.js`
-
-  rollup.rollup({
+  const bundle = await rollup.rollup({
     input: bsPlugins[plugin],
     plugins,
     external
-  }).then((bundle) => {
-    bundle.write({
-      banner: banner(pluginFilename),
-      format: 'umd',
-      name: plugin,
-      sourcemap: true,
-      globals,
-      file: path.resolve(__dirname, `${rootPath}${pluginFilename}`)
-    })
-      .then(() => console.log(`Building ${plugin} plugin... Done!`))
-      .catch((err) => console.error(`${plugin}: ${err}`))
   })
+
+  await bundle.write({
+    banner: banner(pluginFilename),
+    format: 'umd',
+    name: plugin,
+    sourcemap: true,
+    globals,
+    file: path.resolve(__dirname, `${rootPath}${pluginFilename}`)
+  })
+
+  console.log(`Building ${plugin} plugin... Done!`)
+}
+
+const main = async () => {
+  try {
+    await Promise.all(Object.keys(bsPlugins).map((plugin) => build(plugin)))
+  } catch (error) {
+    console.error(error)
+
+    process.exit(1)
+  }
 }
 
-Object.keys(bsPlugins).forEach((plugin) => build(plugin))
+main()
diff --git a/vendor/twbs/bootstrap/build/change-version.js b/vendor/twbs/bootstrap/build/change-version.js
index f1b4f747a..d1131237c 100644
--- a/vendor/twbs/bootstrap/build/change-version.js
+++ b/vendor/twbs/bootstrap/build/change-version.js
@@ -2,9 +2,9 @@
 
 /*!
  * Script to update version number references in the project.
- * Copyright 2017-2019 The Bootstrap Authors
- * Copyright 2017-2019 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Copyright 2017-2020 The Bootstrap Authors
+ * Copyright 2017-2020 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 'use strict'
@@ -17,11 +17,11 @@ sh.config.fatal = true
 
 // Blame TC39... https://github.com/benjamingr/RegExp.escape/issues/37
 function regExpQuote(string) {
-  return string.replace(/[-\\^$*+?.()|[\]{}]/g, '\\$&')
+  return string.replace(/[$()*+.?[\\\]^{|}-]/g, '\\$&')
 }
 
 function regExpQuoteReplacement(string) {
-  return string.replace(/[$]/g, '$$')
+  return string.replace(/\$/g, '$$')
 }
 
 const DRY_RUN = false
@@ -83,6 +83,7 @@ function main(args) {
   const newVersion = args[1]
   const EXCLUDED_DIRS = new Set([
     '.git',
+    '_gh_pages',
     'node_modules',
     'vendor'
   ])
diff --git a/vendor/twbs/bootstrap/build/generate-sri.js b/vendor/twbs/bootstrap/build/generate-sri.js
index a93f3e538..d340b5378 100644
--- a/vendor/twbs/bootstrap/build/generate-sri.js
+++ b/vendor/twbs/bootstrap/build/generate-sri.js
@@ -5,9 +5,9 @@
  * Remember to use the same vendor files as the CDN ones,
  * otherwise the hashes won't match!
  *
- * Copyright 2017-2019 The Bootstrap Authors
- * Copyright 2017-2019 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Copyright 2017-2020 The Bootstrap Authors
+ * Copyright 2017-2020 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 'use strict'
@@ -40,7 +40,7 @@ const files = [
     configPropertyName: 'js_bundle_hash'
   },
   {
-    file: `site/docs/${pkg.version_short}/assets/js/vendor/jquery-slim.min.js`,
+    file: `site/docs/${pkg.version_short}/assets/js/vendor/jquery.slim.min.js`,
     configPropertyName: 'jquery_hash'
   },
   {
diff --git a/vendor/twbs/bootstrap/build/rollup.config.js b/vendor/twbs/bootstrap/build/rollup.config.js
index e81a07ef5..6294204cd 100644
--- a/vendor/twbs/bootstrap/build/rollup.config.js
+++ b/vendor/twbs/bootstrap/build/rollup.config.js
@@ -1,24 +1,20 @@
 'use strict'
 
-const path    = require('path')
-const babel   = require('rollup-plugin-babel')
-const resolve = require('rollup-plugin-node-resolve')
-const banner  = require('./banner.js')
+const path = require('path')
+const { babel } = require('@rollup/plugin-babel')
+const { nodeResolve } = require('@rollup/plugin-node-resolve')
+const banner = require('./banner.js')
 
-const BUNDLE  = process.env.BUNDLE === 'true'
+const BUNDLE = process.env.BUNDLE === 'true'
 
-let fileDest  = 'bootstrap.js'
+let fileDest = 'bootstrap.js'
 const external = ['jquery', 'popper.js']
 const plugins = [
   babel({
-    exclude: 'node_modules/**', // Only transpile our source code
-    externalHelpersWhitelist: [ // Include only required helpers
-      'defineProperties',
-      'createClass',
-      'inheritsLoose',
-      'defineProperty',
-      'objectSpread'
-    ]
+    // Only transpile our source code
+    exclude: 'node_modules/**',
+    // Include the helpers in the bundle, at most one copy of each
+    babelHelpers: 'bundled'
   })
 ]
 const globals = {
@@ -31,7 +27,7 @@ if (BUNDLE) {
   // Remove last entry in external array to bundle Popper
   external.pop()
   delete globals['popper.js']
-  plugins.push(resolve())
+  plugins.push(nodeResolve())
 }
 
 module.exports = {
diff --git a/vendor/twbs/bootstrap/build/ship.sh b/vendor/twbs/bootstrap/build/ship.sh
index 289284383..f1c5e38e3 100644
--- a/vendor/twbs/bootstrap/build/ship.sh
+++ b/vendor/twbs/bootstrap/build/ship.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+
+set -e
+
 #
 # Usage
 # ---------------
@@ -18,35 +21,35 @@ end=$'\e[0m'
 current_version=$(node -p "require('./package.json').version")
 
 if [[ $# -lt 1 ]]; then
-  printf "\n%s⚠️  Shipping aborted. You must specify a version.\n%s" $red $end
+  printf "\n%s⚠️  Shipping aborted. You must specify a version.\n%s" "$red" "$end"
   exit 1
 fi
 
 # Pulling latest changes, just to be sure
-printf "\n%s=======================================================%s" $magenta $end
-printf "\n%sPulling latest changes...%s" $magenta $end
-printf "\n%s=======================================================\n\n%s" $magenta $end
+printf "\n%s=======================================================%s" "$magenta" "$end"
+printf "\n%sPulling latest changes...%s" "$magenta" "$end"
+printf "\n%s=======================================================\n\n%s" "$magenta" "$end"
 git pull origin v4-dev
 
 # Update version number
-printf "\n%s=======================================================%s" $magenta $end
-printf "\n%sUpdating version number...%s" $magenta $end
-printf "\n%s=======================================================\n%s" $magenta $end
+printf "\n%s=======================================================%s" "$magenta" "$end"
+printf "\n%sUpdating version number...%s" "$magenta" "$end"
+printf "\n%s=======================================================\n%s" "$magenta" "$end"
 npm run release-version "$current_version" "$1"
 
 # Build release
-printf "\n%s=======================================================%s" $magenta $end
-printf "\n%sBuilding release...%s" $magenta $end
-printf "\n%s=======================================================\n%s" $magenta $end
+printf "\n%s=======================================================%s" "$magenta" "$end"
+printf "\n%sBuilding release...%s" "$magenta" "$end"
+printf "\n%s=======================================================\n%s" "$magenta" "$end"
 npm run release
 
 # Copy the contents of the built docs site over to `bs-docs` repo
-printf "\n%s=======================================================%s" $magenta $end
-printf "\n%sCopy it over...%s" $magenta $end
-printf "\n%s=======================================================\n%s" $magenta $end
+printf "\n%s=======================================================%s" "$magenta" "$end"
+printf "\n%sCopy it over...%s" "$magenta" "$end"
+printf "\n%s=======================================================\n%s" "$magenta" "$end"
 cp -rf _gh_pages/. ../bs-docs/
 printf "\nDone!\n"
 
-printf "\n%s=======================================================%s" $green $end
-printf "\n%sSuccess, $1 is ready to review and publish.%s" $green $end
-printf "\n%s=======================================================\n\n%s" $green $end
+printf "\n%s=======================================================%s" "$green" "$end"
+printf "\n%sSuccess, $1 is ready to review and publish.%s" "$green" "$end"
+printf "\n%s=======================================================\n\n%s" "$green" "$end"
diff --git a/vendor/twbs/bootstrap/build/svgo.yml b/vendor/twbs/bootstrap/build/svgo.yml
index 047e6947f..1b592f00f 100644
--- a/vendor/twbs/bootstrap/build/svgo.yml
+++ b/vendor/twbs/bootstrap/build/svgo.yml
@@ -35,6 +35,9 @@ plugins:
   - minifyStyles: true
   - moveElemsAttrsToGroup: true
   - moveGroupAttrsToElems: true
+  - removeAttrs:
+      attrs:
+        - "data-name"
   - removeComments: true
   - removeDesc: true
   - removeDoctype: true
diff --git a/vendor/twbs/bootstrap/build/vnu-jar.js b/vendor/twbs/bootstrap/build/vnu-jar.js
index 7d549cb01..f4a4141c1 100644
--- a/vendor/twbs/bootstrap/build/vnu-jar.js
+++ b/vendor/twbs/bootstrap/build/vnu-jar.js
@@ -2,9 +2,9 @@
 
 /*!
  * Script to run vnu-jar if Java is available.
- * Copyright 2017-2019 The Bootstrap Authors
- * Copyright 2017-2019 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Copyright 2017-2020 The Bootstrap Authors
+ * Copyright 2017-2020 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 'use strict'
@@ -18,7 +18,7 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
     return
   }
 
-  const is32bitJava = !stderr.match(/64-Bit/)
+  const is32bitJava = !/64-Bit/.test(stderr)
 
   // vnu-jar accepts multiple ignores joined with a `|`.
   // Also note that the ignores are regular expressions.
@@ -36,9 +36,7 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
     'The “time” input type is not supported in all browsers.*',
     // IE11 doesn't recognise <main> / give the element an implicit "main" landmark.
     // Explicit role="main" is redundant for other modern browsers, but still valid.
-    'The “main” role is unnecessary for element “main”.',
-    // Ignore the wrong lanuage code warnings for now; they happen randomly.
-    'This document appears to be written in.*'
+    'The “main” role is unnecessary for element “main”.'
   ].join('|')
 
   const args = [
@@ -46,6 +44,8 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
     vnu,
     '--asciiquotes',
     '--skip-non-html',
+    // Ignore the language code warnings
+    '--no-langdetect',
     '--Werror',
     `--filterpattern "${ignores}"`,
     '_gh_pages/',
diff --git a/vendor/twbs/bootstrap/build/zip-examples.js b/vendor/twbs/bootstrap/build/zip-examples.js
new file mode 100644
index 000000000..5d6d31454
--- /dev/null
+++ b/vendor/twbs/bootstrap/build/zip-examples.js
@@ -0,0 +1,63 @@
+#!/usr/bin/env node
+
+/*!
+ * Script to create the built examples zip archive;
+ * requires the `zip` command to be present!
+ * Copyright 2020 The Bootstrap Authors
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ */
+
+'use strict'
+
+const path = require('path')
+const sh = require('shelljs')
+
+const {
+  version, version_short: versionShort
+} = require('../package.json')
+
+const folderName = `bootstrap-${version}-examples`
+
+sh.config.fatal = true
+
+if (!sh.test('-d', '_gh_pages')) {
+  throw new Error('The "_gh_pages" folder does not exist, did you forget building the docs?')
+}
+
+// switch to the root dir
+sh.cd(path.join(__dirname, '..'))
+
+// remove any previously created folder with the same name
+sh.rm('-rf', folderName)
+// create any folders so that `cp` works
+sh.mkdir('-p', folderName)
+sh.mkdir('-p', `${folderName}/assets/brand/`)
+
+sh.cp('-Rf', `_gh_pages/docs/${versionShort}/examples/*`, folderName)
+sh.cp('-Rf', `_gh_pages/docs/${versionShort}/dist/`, `${folderName}/assets/`)
+// also copy the two brand images we use in the examples
+sh.cp('-f', [
+  `_gh_pages/docs/${versionShort}/assets/brand/bootstrap-outline.svg`,
+  `_gh_pages/docs/${versionShort}/assets/brand/bootstrap-solid.svg`
+], `${folderName}/assets/brand/`)
+sh.rm(`${folderName}/index.html`)
+
+// get all examples' HTML files
+sh.find(`${folderName}/**/*.html`).forEach((file) => {
+  const fileContents = sh.cat(file)
+    .toString()
+    .replace(new RegExp(`"/docs/${versionShort}/`, 'g'), '"../')
+    .replace(/"..\/dist\//g, '"../assets/dist/')
+    .replace(/(<link href="\.\.\/.*) integrity=".*>/g, '$1>')
+    .replace(/(<script src="\.\.\/.*) integrity=".*>/g, '$1></script>')
+    .replace(/( +)<!-- favicons(.|\n)+<style>/i, '    <style>')
+  new sh.ShellString(fileContents).to(file)
+})
+
+// create the zip file
+sh.exec(`zip -r9 "${folderName}.zip" "${folderName}"`, {
+  fatal: true
+})
+
+// remove the folder we created
+sh.rm('-rf', folderName)