Revert "Delete as it has been merged in https://github.com/prusa3d/Prusa-Firmware/pull/3355"

This reverts commit 9993026202212d68a14d27b3e8eb2930c77b1328.

Affraid it will delete it when merged to MK3 branch

.travis.yml

@@ -0,0 +1,35 @@
+dist: focal
+before_install:
+  - sudo apt-get install -y ninja-build
+  # Arduino IDE adds a lot of noise caused by network traffic, trying to 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:
+  - bash -x test.sh
+  - 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; }
+  - 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; }
+  - 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
+  - cp Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h Firmware/Configuration_prusa.h
+  - bash -x build.sh || { echo "1_75mm_MK2-RAMBo13a-E3Dv6full variant failed" && false; }
+  - rm Firmware/Configuration_prusa.h
+  - cp Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h Firmware/Configuration_prusa.h
+  - bash -x build.sh || { echo "1_75mm_MK2-RAMBo10a-E3Dv6full variant failed" && false; }