From 7b9535753952e8839cdda69ea04b5521db099e82 Mon Sep 17 00:00:00 2001
From: Katie Byers <lobsterkatie@gmail.com>
Date: Wed, 9 Mar 2022 21:25:46 -0800
Subject: [PATCH 1/2] make rollup only build one integration at at time

---
 packages/integrations/rollup.config.js | 30 +++++++++++---------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/packages/integrations/rollup.config.js b/packages/integrations/rollup.config.js
index 2373d2c61e08..c67202fdfdc3 100644
--- a/packages/integrations/rollup.config.js
+++ b/packages/integrations/rollup.config.js
@@ -1,28 +1,24 @@
-import * as fs from 'fs';
-
 import commonjs from '@rollup/plugin-commonjs';
 
 import { insertAt, makeBaseBundleConfig, makeConfigVariants } from '../../rollup.config';
 
 const builds = [];
 
-const integrationSourceFiles = fs.readdirSync('./src').filter(file => file != 'index.ts');
+const file = process.env.INTEGRATION_FILE;
 
-integrationSourceFiles.forEach(file => {
-  const baseBundleConfig = makeBaseBundleConfig({
-    input: `src/${file}`,
-    isAddOn: true,
-    jsVersion: 'es5',
-    licenseTitle: '@sentry/integrations',
-    // TODO this doesn't currently need to be a template string, but soon will need to be, so leaving it in that form
-    // for now
-    outputFileBase: `${file.replace('.ts', '')}`,
-  });
+const baseBundleConfig = makeBaseBundleConfig({
+  input: `src/${file}`,
+  isAddOn: true,
+  jsVersion: 'es5',
+  licenseTitle: '@sentry/integrations',
+  // TODO this doesn't currently need to be a template string, but soon will need to be, so leaving it in that form
+  // for now
+  outputFileBase: `${file.replace('.ts', '')}`,
+});
 
-  // TODO We only need `commonjs` for localforage (used in the offline plugin). Once that's fixed, this can come out.
-  baseBundleConfig.plugins = insertAt(baseBundleConfig.plugins, -2, commonjs());
+// TODO We only need `commonjs` for localforage (used in the offline plugin). Once that's fixed, this can come out.
+baseBundleConfig.plugins = insertAt(baseBundleConfig.plugins, -2, commonjs());
 
-  builds.push(...makeConfigVariants(baseBundleConfig));
-});
+builds.push(...makeConfigVariants(baseBundleConfig));
 
 export default builds;

From e5355ced00d192d14de03ed570c4d5f9995900ba Mon Sep 17 00:00:00 2001
From: Katie Byers <lobsterkatie@gmail.com>
Date: Fri, 11 Mar 2022 00:01:47 -0800
Subject: [PATCH 2/2] add script to run integration bundling in parallel

---
 packages/integrations/package.json            |  2 +-
 packages/integrations/scripts/buildBundles.sh | 20 +++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 packages/integrations/scripts/buildBundles.sh

diff --git a/packages/integrations/package.json b/packages/integrations/package.json
index e9493874c55d..adc11b1c481f 100644
--- a/packages/integrations/package.json
+++ b/packages/integrations/package.json
@@ -26,7 +26,7 @@
   },
   "scripts": {
     "build": "run-p build:cjs build:esm build:bundle",
-    "build:bundle": "rollup --config",
+    "build:bundle": "bash scripts/buildBundles.sh",
     "build:cjs": "tsc -p tsconfig.cjs.json",
     "build:dev": "run-s build:cjs build:esm",
     "build:es5": "yarn build:cjs # *** backwards compatibility - remove in v7 ***",
diff --git a/packages/integrations/scripts/buildBundles.sh b/packages/integrations/scripts/buildBundles.sh
new file mode 100644
index 000000000000..013917e3d01b
--- /dev/null
+++ b/packages/integrations/scripts/buildBundles.sh
@@ -0,0 +1,20 @@
+for filepath in ./src/*; do
+  file=$(basename $filepath)
+
+  # the index file is only there for the purposes of npm builds - for the CDN we create a separate bundle for each
+  # integration - so we can skip it here
+  if [[ $file == "index.ts" ]]; then
+    continue
+  fi
+
+  # run the build for each integration, pushing each build process into the background once it starts (that's what the
+  # trailing `&` does) so that we can start another one
+  echo -e "\nBuilding bundles for \`$file\`..."
+  INTEGRATION_FILE=$file yarn --silent rollup -c rollup.config.js 2>/dev/null && echo -e "\nFinished building bundles for \`$file\`." &
+
+done
+
+# keep the process running until all backgrounded tasks have finished
+wait
+
+echo "Integration bundles built successfully"