From e97af5862cf5f3911258ccdf34bc2a025472cab7 Mon Sep 17 00:00:00 2001
From: Steven Maude <git@stevenmaude.co.uk>
Date: Fri, 3 May 2024 18:07:19 +0100
Subject: [PATCH] Use faster compression option

One-off comparison in GitHub Actions with the default 4 core runner:

* default `pigz`: 1.7G file size, 1m 49s
* `--fast`: 1.9G file size, 1m 16s

The upload and download time for the file compressed with default
settings is about 10 seconds (turning compression off for the upload).
---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 11a3f7d..d166139 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -35,7 +35,7 @@ jobs:
 
       - name: Save docker image
         run: |
-          docker save research-template | pigz > /tmp/research-template.tar.gz
+          docker save research-template | pigz --fast > /tmp/research-template.tar.gz
 
       - name: Upload docker image
         uses: actions/upload-artifact@v4