CI: Update travis to build/test with cmake

Include the new cmake-based build in travis.
Split the build into 3 stages: cmake, legacy and tests.

cmake: new cmake-based build (*all* variants, including english only)
legacy: old build.sh based build (using arduino-builder)
tests: cmake tests (not terribly useful at the moment)

.github/travis/cmake-build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -xe
+rm -rf build
+mkdir build
+cd build
+cmake .. \
+    -DCMAKE_TOOLCHAIN_FILE="../cmake/LocalAvrGcc.cmake" \
+    -DCMAKE_BUILD_TYPE=Release \
+    -G Ninja
+ninja ALL_FIRMWARE

.github/travis/cmake-test.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -xe
+rm -rf build
+mkdir build
+cd build
+cmake .. -G Ninja
+ninja tests
+ctest

.github/travis/legacy-build.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+set -xe
+cp Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK3S-EINSy10a-E3Dv6full variant failed" && false; }
+bash -x build.sh EN_FARM || { echo "1_75mm_MK3S-EINSy10a-E3Dv6full EN_FARM failed" && false; }
+rm Firmware/Configuration_prusa.h
+cp Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK3-EINSy10a-E3Dv6full variant failed" && false; }
+bash -x build.sh EN_FARM || { echo "1_75mm_MK3-EINSy10a-E3Dv6full EN_FARM failed" && false; }
+rm Firmware/Configuration_prusa.h
+cp Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK25S-RAMBo13a-E3Dv6full variant failed" && false; }
+rm Firmware/Configuration_prusa.h
+cp Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK25S-RAMBo10a-E3Dv6full variant failed" && false; }
+rm Firmware/Configuration_prusa.h
+cp Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK25-RAMBo13a-E3Dv6full variant failed" && false; }
+rm Firmware/Configuration_prusa.h
+cp Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h Firmware/Configuration_prusa.h
+bash -x build.sh || { echo "1_75mm_MK25-RAMBo10a-E3Dv6full variant failed" && false; }
+rm Firmware/Configuration_prusa.h

.travis.yml

@@ -1,31 +1,42 @@
 dist: focal
+
 before_install:
-  - sudo apt-get install -y ninja-build python3-polib python3-pyelftools
-  # Arduino IDE adds a lot of noise caused by network traffic, trying to firewall it off
+  # Prepare the dependencies for the old build environment
+  - sudo apt-get install -y python3-polib python3-pyelftools python3-regex
+
+  # Undo whatever *GARBAGE* travis is doing with python and restore the system version
+  - mkdir -p .dependencies/python3
+  - ln -sf /usr/bin/python3 .dependencies/python3/python3
+  - PATH=$PWD/.dependencies/python3:$PATH
+
+  # Bootstrap cmake/ninja for the new build environment
+  - ./utils/bootstrap.py
+  - PATH=$(./utils/bootstrap.py --print-dependency-directory "cmake")/bin:$PATH
+  - PATH=$(./utils/bootstrap.py --print-dependency-directory "ninja"):$PATH
+
+  # Arduino IDE adds a lot of noise caused by network traffic, firewall it off
   - sudo iptables -P INPUT DROP
   - sudo iptables -P FORWARD DROP
   - sudo iptables -P OUTPUT ACCEPT
   - sudo iptables -A INPUT -i lo -j ACCEPT
   - sudo iptables -A OUTPUT -o lo -j ACCEPT
   - sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-script:
-  - cp Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK3S-EINSy10a-E3Dv6full variant failed" && false; }
-  - bash -x build.sh EN_FARM || { echo "1_75mm_MK3S-EINSy10a-E3Dv6full EN_FARM failed" && false; }
-  - rm Firmware/Configuration_prusa.h
-  - cp Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK3-EINSy10a-E3Dv6full variant failed" && false; }
-  - bash -x build.sh EN_FARM || { echo "1_75mm_MK3-EINSy10a-E3Dv6full EN_FARM failed" && false; }
-  - rm Firmware/Configuration_prusa.h
-  - cp Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK25S-RAMBo13a-E3Dv6full variant failed" && false; }
-  - rm Firmware/Configuration_prusa.h
-  - cp Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK25S-RAMBo10a-E3Dv6full variant failed" && false; }
-  - rm Firmware/Configuration_prusa.h
-  - cp Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK25-RAMBo13a-E3Dv6full variant failed" && false; }
-  - rm Firmware/Configuration_prusa.h
-  - cp Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h Firmware/Configuration_prusa.h
-  - bash -x build.sh || { echo "1_75mm_MK25-RAMBo10a-E3Dv6full variant failed" && false; }
-  - rm Firmware/Configuration_prusa.h
+
+jobs:
+  include:
+    # legacy build.sh environment
+    - stage: legacy
+      script: ./.github/travis/legacy-build.sh
+
+    # cmake-based build
+    - stage: cmake
+      script: ./.github/travis/cmake-build.sh
+
+    # cmake tests
+    - stage: tests
+      script: ./.github/travis/cmake-test.sh
+
+stages:
+  - cmake
+  - legacy
+  - tests