ci, coldcard: clone once

Avoids spurious CI failures by not re-cloning the large repo with
many submodules in every test job.

Additionally, stip .git folder(s) for all devices to shrink
archives.

Author: Sjors

.github/actions/build-sim/action.yml

@@ -36,6 +36,11 @@ runs:
         cd test
         ./setup_environment.sh --"${{ inputs.name }}"
         cd ..
+
+        # Remove .git directories to shrink the archive
+        for p in ${{ inputs.paths }}; do
+          find "$p" -name ".git" -type d -exec rm -rf {} + 2>/dev/null || true
+        done
         tar -czf "${{ inputs.archive }}.tar.gz" ${{ inputs.paths }}
 
     - uses: actions/upload-artifact@v4

.github/actions/install-sim/action.yml

@@ -20,18 +20,13 @@ runs:
 
     - if: inputs.device == 'coldcard'
       shell: bash
-      env:
-        # Keep in sync with test/setup_environment.sh
-        COLDCARD_VERSION: "2025-09-30T1238-v5.4.4"
       run: |
         apt-get update
         apt-get install -y libpcsclite-dev libusb-1.0-0 swig
-        git config --global user.email "ci@ci.com"
-        git config --global user.name "ci"
-        # Note: cannot use --shallow-submodules because lwip submodule on git.savannah.gnu.org doesn't support it
-        pushd test/work; git clone --recursive --depth 1 --branch ${COLDCARD_VERSION} https://github.com/Coldcard/firmware.git; popd
-        tar -xvf coldcard-mpy.tar.gz
-        pushd test/work/firmware; git am ../../data/coldcard-multisig.patch; popd
+
+        # Extract the archive - this includes the full firmware directory
+        tar -xvf coldcard-firmware.tar.gz
+
         poetry run pip install -r test/work/firmware/requirements.txt
         pip install -r test/work/firmware/requirements.txt
         poetry run pip install pysdl2-dll

.github/sim-build-map.json

@@ -4,7 +4,7 @@
     { "name": "trezor-t", "archive": "trezor-firmware", "paths": "test/work/trezor-firmware" }
   ],
   "coldcard": [
-    { "name": "coldcard", "archive": "coldcard-mpy", "paths": "test/work/firmware/external/micropython/ports/unix/coldcard-mpy test/work/firmware/unix/coldcard-mpy test/work/firmware/unix/l-mpy test/work/firmware/unix/l-port" }
+    { "name": "coldcard", "archive": "coldcard-firmware", "paths": "test/work/firmware" }
   ],
   "bitbox": [
     { "name": "bitbox01", "archive": "mcu", "paths": "test/work/mcu" },