use arduino IDE stable in CI

.travis.yml

@@ -6,14 +6,6 @@ git:
   depth: 1
   submodules: false
 
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - g++-7
-      - gcc-7
-
 before_install:
   - git submodule update --init  # no recursive update
 
@@ -87,7 +79,11 @@ jobs:
     - name: "Host tests"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/ci/host_test.sh
-      install: sudo apt-get install valgrind lcov
+      install:
+        - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+        - sudo apt-get update -q
+        - sudo apt-get install -y --allow-unauthenticated g++-7 gcc-7
+        - sudo apt-get install valgrind lcov
       env: CC=gcc-7 CXX=g++-7
 
     - name: "Docs"
@@ -105,6 +101,10 @@ jobs:
     - name: "Mock trivial test"
       stage: build
       script: $TRAVIS_BUILD_DIR/tests/buildm.sh
+      install:
+        - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+        - sudo apt-get update -q
+        - sudo apt-get install -y --allow-unauthenticated g++-7 gcc-7
       env: CC=gcc-7 CXX=g++-7
 
     - name: "Mac OSX can build sketches"

tests/common.sh

@@ -153,6 +153,14 @@ function install_libraries()
 
 function install_ide()
 {
+    #local idever='nightly'
+    #local ideurl='https://www.arduino.cc/download.php?f=/arduino-nightly'
+
+    local idever='1.8.10'
+    local ideurl="https://downloads.arduino.cc/arduino-$idever"
+
+    echo "using Arduino IDE distribution ${idever}"
+
     local ide_path=$1
     local core_path=$2
     local debug=$3
@@ -164,24 +172,27 @@ function install_ide()
         choco install --no-progress unzip
         choco install --no-progress sed
         #choco install --no-progress golang
-        test -r arduino-nightly-windows.zip || wget -nv -O arduino-nightly-windows.zip https://www.arduino.cc/download.php?f=/arduino-nightly-windows.zip
-        unzip -q arduino-nightly-windows.zip
+        test -r arduino-windows.zip || wget -nv -O arduino-windows.zip "${ideurl}-windows.zip"
+        unzip -q arduino-windows.zip
+        mv arduino-${idever} arduino-distrib
     elif [ "$MACOSX" = "1" ]; then
         # MACOS only has next-to-obsolete Python2 installed.  Install Python 3 from python.org
         wget https://www.python.org/ftp/python/3.7.4/python-3.7.4-macosx10.9.pkg
         sudo installer -pkg python-3.7.4-macosx10.9.pkg -target /
         # Install the Python3 certificates, because SSL connections fail w/o them and of course they aren't installed by default.
         ( cd "/Applications/Python 3.7/" && sudo "./Install Certificates.command" )
         # Hack to place arduino-builder in the same spot as sane OSes
-        test -r arduino.zip || wget -O arduino.zip https://downloads.arduino.cc/arduino-nightly-macosx.zip
-        unzip -q arduino.zip
-        mv Arduino.app arduino-nightly
-        mv arduino-nightly/Contents/Java/* arduino-nightly/.
+        test -r arduino-macos.zip || wget -O arduino-macos.zip "${ideurl}-macosx.zip"
+        unzip -q arduino-macos.zip
+        mv Arduino.app arduino-distrib
+        mv arduino-distrib/Contents/Java/* arduino-distrib/.
     else
-        test -r arduino.tar.xz || wget -O arduino.tar.xz https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz
-        tar xf arduino.tar.xz
+        #test -r arduino.tar.xz || wget -O arduino.tar.xz https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz
+        test -r arduino-linux.tar.xz || wget -O arduino-linux.tar.xz "${ideurl}-linux64.tar.xz"
+        tar xf arduino-linux.tar.xz
+        mv arduino-${idever} arduino-distrib
     fi
-    mv arduino-nightly $ide_path
+    mv arduino-distrib $ide_path
     cd $ide_path/hardware
     mkdir esp8266com
     cd esp8266com

tests/run_CI_locally.sh

@@ -84,6 +84,8 @@ done
 cp tests/platformio.sh tests/platformio-custom.sh
 sed -i 's,pip ,pip2 ,g' tests/platformio-custom.sh
 
+git submodule update --init
+
 export HOME="${TMPCI}"
 export TRAVIS_BUILD_DIR="${TMPCI}"
 export BUILD_TYPE="$BUILD_TYPE"