From 84e9669838672e23ffbd54e89ed3664e4e9ef33e Mon Sep 17 00:00:00 2001
From: as6325400 <as6325400@gmail.com>
Date: Fri, 20 Sep 2024 21:19:58 +0800
Subject: [PATCH] update package to docker image readme

Co-authored-by: MCJ Vasseur <14887731+vmcj@users.noreply.github.com>
---
 docker/README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/docker/README.md b/docker/README.md
index 9b46f86..1c59cda 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -263,8 +263,10 @@ where `version` is the DOMjudge version to create the images for, e.g. `5.3.0`.
 
 To build domjudge with local sources, run
 ```bash
-  tar --exclude-vcs -czf <path to domjudge-packaging>/docker/domjudge.tar.gz <domjudge source directory>
-  cd <path to domjudge-packaging>/docker
+  dj_packaging_dir=<path to domjudge-packaging>
+  dj_source_dir =<domjudge source directory>
+  tar --exclude-vcs -czf "${dj_packaging_dir}/docker/domjudge.tar.gz" -C $(dirname "$dj_source_dir") $(basename "$dj_source_dir")
+  cd ${dj_packaging_dir}/docker"
   docker build -t domjudge -f domserver/Dockerfile .
 ```
 Note that the source directory name has to match `domjudge-*`.