From 08c6b2261bfcb5b1c369e185a10e550b480f3590 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 3 Jul 2026 09:16:10 +0000
Subject: [PATCH 1/2] Initial plan


From 071e8cff0efe02d7e79d2fc15972a1bc21f4326e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 3 Jul 2026 09:18:00 +0000
Subject: [PATCH 2/2] Fix Docker build: clone main branch from
 PyGEM-Community/PyGEM (was master)

---
 .github/workflows/docker_pygem.yml | 3 ++-
 docker/Dockerfile                  | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/docker_pygem.yml b/.github/workflows/docker_pygem.yml
index cfa3a618..53ccb5e5 100644
--- a/.github/workflows/docker_pygem.yml
+++ b/.github/workflows/docker_pygem.yml
@@ -59,6 +59,7 @@ jobs:
           no-cache: true
           file: 'docker/Dockerfile'
           build-args: |
-            PYGEM_BRANCH=${{ github.ref == 'refs/heads/master' && 'master' || 'dev' }}
+            # Map this repo's 'master' branch to 'main' in PyGEM-Community/PyGEM (upstream uses 'main')
+            PYGEM_BRANCH=${{ github.ref == 'refs/heads/master' && 'main' || 'dev' }}
           tags: |
             ghcr.io/pygem-community/pygem:${{ github.ref == 'refs/heads/master' && 'latest' || github.ref == 'refs/heads/dev' && 'dev' }}
\ No newline at end of file
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 11b4dd60..ada499cd 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -16,8 +16,8 @@ WORKDIR /home/ubuntu
 # Add .local/bin to PATH
 ENV PATH="/home/ubuntu/.local/bin:${PATH}"
 
-# What PyGEM branch to clone (either master or dev; see docker_pygem.yml)
-ARG PYGEM_BRANCH=master
+# What PyGEM branch to clone (either main or dev; see docker_pygem.yml)
+ARG PYGEM_BRANCH=main
 
 RUN git clone --branch ${PYGEM_BRANCH} https://github.com/PyGEM-Community/PyGEM.git && \
     pip install --break-system-packages -e PyGEM