From 332a4a915771afedcb144463b012558e4669e529 Mon Sep 17 00:00:00 2001
From: Jusong Yu <jusong.yeu@gmail.com>
Date: Thu, 17 Oct 2024 14:57:46 +0200
Subject: [PATCH] Fix failed docker CI using more reasoning grep regex to parse
 python version (#6581)
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The grep command failed that extracts the python version from mamba list failed because an indentation was added.
See the python string in the output of `mamba list`:

```
List of packages in environment: "/opt/conda"

  Name    Version  Build               Channel
────────────────────────────────────────────────────
  python  3.10.13  hd12c33a_1_cpython  conda-forge
```
---
 .docker/aiida-core-base/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.docker/aiida-core-base/Dockerfile b/.docker/aiida-core-base/Dockerfile
index 87339724bc..40b18f9fa3 100644
--- a/.docker/aiida-core-base/Dockerfile
+++ b/.docker/aiida-core-base/Dockerfile
@@ -137,7 +137,7 @@ RUN set -x && \
         mamba && \
     rm micromamba && \
     # Pin major.minor version of python
-    mamba list python | grep '^python ' | tr -s ' ' | cut -d ' ' -f 1,2 >> "${CONDA_DIR}/conda-meta/pinned" && \
+    mamba list python | grep -oP 'python\s+\K[\d.]+' | tr -s ' ' | cut -d ' ' -f 1,2 >> "${CONDA_DIR}/conda-meta/pinned" && \
     mamba clean --all -f -y && \
     fix-permissions "${CONDA_DIR}" && \
     fix-permissions "/home/${SYSTEM_USER}"