From 34bec11e8ff957bf92186cb40e3f96db20f82db9 Mon Sep 17 00:00:00 2001
From: Daniel Bast <2790401+dbast@users.noreply.github.com>
Date: Tue, 28 Mar 2023 11:08:38 +0200
Subject: [PATCH] Set solver right after `conda clean ...` to avoid
 incompatible caches (#355)

---
 anaconda-pkg-build/linux/Dockerfile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/anaconda-pkg-build/linux/Dockerfile b/anaconda-pkg-build/linux/Dockerfile
index 847517d8..c310ee6a 100644
--- a/anaconda-pkg-build/linux/Dockerfile
+++ b/anaconda-pkg-build/linux/Dockerfile
@@ -102,6 +102,9 @@ RUN MC_ARCH="$(uname -m)" \
     && /opt/conda/bin/conda update --all --quiet --yes \
     && /opt/conda/bin/conda install --quiet --yes conda-build conda-libmamba-solver \
     && /opt/conda/bin/conda clean --all --yes \
+    # The solver has to be set right after the `conda clean` call and before the next
+    # `conda install` call to avoid incompatible cache formats.
+    && /opt/conda/bin/conda config --system --set solver libmamba \
     # Cache our C and C++ compilers so we don't have to download them with
     # each build; skipping the Fortran compiler as it's not used often
     # enough to justify the cache space.  Note that we do NOT want to
@@ -118,7 +121,6 @@ RUN MC_ARCH="$(uname -m)" \
 # hadolint ignore=DL3059
 RUN rm -fv /opt/conda/.condarc \
     && /opt/conda/bin/conda config --system --set show_channel_urls True \
-    && /opt/conda/bin/conda config --system --set solver libmamba \
     && /opt/conda/bin/conda config --system --set add_pip_as_python_dependency False \
     && /opt/conda/bin/conda config --show-sources