From 483342100c1277ce034949c2746cf3ee20d76db2 Mon Sep 17 00:00:00 2001
From: Oliver Li <oliver.li@datadoghq.com>
Date: Mon, 13 Jul 2026 17:08:12 -0400
Subject: [PATCH] ci: enforce yarn cache immutability to catch stale/missing
 .yarn/cache entries

---
 .github/workflows/bump.yaml | 2 +-
 .github/workflows/ci.yaml   | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/bump.yaml b/.github/workflows/bump.yaml
index a49d9f837..14a285510 100644
--- a/.github/workflows/bump.yaml
+++ b/.github/workflows/bump.yaml
@@ -37,7 +37,7 @@ jobs:
           node-version-file: "package.json"
 
       - name: Install dependencies
-        run: yarn install
+        run: yarn install --immutable --immutable-cache
       - name: Bump version
         run: yarn version:all ${{ inputs.version }}
       - name: Add files
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 48f9d26b4..0c59410e1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -40,7 +40,7 @@ jobs:
           api_key: ${{secrets.DATADOG_API_KEY}}
           site: datadoghq.com
 
-      - run: yarn install
+      - run: yarn install --immutable --immutable-cache
 
       - name: Build all plugins
         if: steps.cache-build.outputs.cache-hit != 'true'
@@ -96,7 +96,7 @@ jobs:
           api_key: ${{secrets.DATADOG_API_KEY}}
           site: datadoghq.com
 
-      - run: yarn install
+      - run: yarn install --immutable --immutable-cache
 
       - name: Install playwright
         run: yarn workspace @dd/tests playwright install --with-deps
@@ -165,7 +165,7 @@ jobs:
             'packages/plugins/**', 'packages/published/**',
             'packages/tools/src/**', 'yarn.lock') }}
 
-      - run: yarn install
+      - run: yarn install --immutable --immutable-cache
 
       # Pre build the rollup plugin so it can be used in the following step.
       - name: Build rollup's plugin