From 9dd58542c9b2a80d21cbc62323dbb56b3f4ecec4 Mon Sep 17 00:00:00 2001
From: Dieter Dobbelaere <dieter.dobbelaere@gmail.com>
Date: Mon, 20 Apr 2026 17:41:01 +0200
Subject: [PATCH] Compress Linux universal release package

`stockfish-ubuntu-x86-64-universal.tar` goes from 94.8MiB to 67.4MiB (tar.gz)

Note that the CI code is written such that it easy to select other compression
schemes in the future (e.g. tar.xz) by simply changing the `archive_ext`
parameter.

closes https://github.com/official-stockfish/Stockfish/pull/6746

No functional change
---
 .github/ci/universal_matrix.json      | 2 +-
 .github/workflows/upload_binaries.yml | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/ci/universal_matrix.json b/.github/ci/universal_matrix.json
index 64b7d7608..be46efc75 100644
--- a/.github/ci/universal_matrix.json
+++ b/.github/ci/universal_matrix.json
@@ -4,7 +4,7 @@
       "name": "Ubuntu 22.04 GCC Universal",
       "os": "ubuntu-22.04",
       "simple_name": "ubuntu",
-      "archive_ext": "tar"
+      "archive_ext": "tar.gz"
     },
     {
       "name": "Windows 2022 Mingw-w64 GCC Universal",
diff --git a/.github/workflows/upload_binaries.yml b/.github/workflows/upload_binaries.yml
index d91f75ecd..68315c7c4 100644
--- a/.github/workflows/upload_binaries.yml
+++ b/.github/workflows/upload_binaries.yml
@@ -59,13 +59,13 @@ jobs:
           cp CONTRIBUTING.md ../stockfish/
 
       - name: Create tar
-        if: ${{ !startsWith(matrix.config.os, 'windows') }}
+        if: ${{ startsWith(matrix.config.archive_ext, 'tar') }}
         run: |
           chmod +x ./stockfish/stockfish-$NAME-$BINARY$EXT
-          tar -cvf stockfish-$NAME-$BINARY.tar stockfish
+          tar -cavf stockfish-$NAME-$BINARY."${{ matrix.config.archive_ext }}" stockfish
 
       - name: Create zip
-        if: ${{ startsWith(matrix.config.os, 'windows') }}
+        if: ${{ matrix.config.archive_ext == 'zip' }}
         run: |
           zip -r stockfish-$NAME-$BINARY.zip stockfish