From 6160d75889996e7f20e8aba3d92d5e61786869cf Mon Sep 17 00:00:00 2001
From: Shauren <shauren.trinity@gmail.com>
Date: Thu, 27 Nov 2025 00:10:51 +0100
Subject: [PATCH] CI/GitHub: Keep ccache size as small as possible by evicting
 entries not accessed by current build instead

---
 .github/workflows/linux-build.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index 15a9f960d0d..4cbc29e0e60 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -29,6 +29,7 @@ jobs:
       id: strings
       shell: bash
       run: |
+        echo "build-start=$EPOCHSECONDS" >> "$GITHUB_OUTPUT"
         echo "build-output-dir=${{ github.workspace }}/bin" >> "$GITHUB_OUTPUT"
         echo "ccache-key-prefix=ubuntu-${{ matrix.cc }}-${{ github.base_ref || github.ref_name }}" >> "$GITHUB_OUTPUT"
     - name: Dependencies
@@ -65,6 +66,7 @@ jobs:
         ccache -z
         cmake --build ${{ steps.strings.outputs.build-output-dir }}
         ccache -s
+        ccache --evict-older-than $(($EPOCHSECONDS - ${{ steps.strings.outputs.build-start }}))s
     - name: Unit tests
       run: |
         cmake --build ${{ steps.strings.outputs.build-output-dir }} --target test