From f941053cd8123fb075c51b255602fcfd8a2e4482 Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Fri, 30 Nov 2018 14:47:44 -0800
Subject: [PATCH] Split PIO job into even and odd builds

---
 .travis.yml     |  4 +++-
 tests/common.sh | 19 +++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index c2a99bae08..a992a5094e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,9 @@ matrix:
     - env:
       - BUILD_TYPE=debug_odd
     - env:
-      - BUILD_TYPE=platformio
+      - BUILD_TYPE=platformio_even
+    - env:
+      - BUILD_TYPE=platformio_odd
     - env:
       - BUILD_TYPE=docs
     - env:
diff --git a/tests/common.sh b/tests/common.sh
index c048e75fe5..f6e06a66b0 100755
--- a/tests/common.sh
+++ b/tests/common.sh
@@ -173,8 +173,15 @@ function build_sketches_with_platformio()
     set +e
     local srcpath=$1
     local build_arg=$2
-    local sketches=$(find $srcpath -name *.ino)
+    local build_mod=$3
+    local build_rem=$4
+    local sketches=$(find $srcpath -name *.ino | sort)
+    local testcnt=0
     for sketch in $sketches; do
+        testcnt=$(( ($testcnt + 1) % $build_mod ))
+        if [ $testcnt -ne $build_rem ]; then
+            continue  # Not ours to do
+        fi
         local sketchdir=$(dirname $sketch)
         local sketchdirname=$(basename $sketchdir)
         local sketchname=$(basename $sketch)
@@ -274,7 +281,15 @@ elif [ "$BUILD_TYPE" = "debug_odd" ]; then
 elif [ "$BUILD_TYPE" = "platformio" ]; then
     # PlatformIO
     install_platformio
-    build_sketches_with_platformio $TRAVIS_BUILD_DIR/libraries "--board nodemcuv2 --verbose"
+    build_sketches_with_platformio $TRAVIS_BUILD_DIR/libraries "--board nodemcuv2 --verbose" 1 0
+elif [ "$BUILD_TYPE" = "platformio_even" ]; then
+    # PlatformIO
+    install_platformio
+    build_sketches_with_platformio $TRAVIS_BUILD_DIR/libraries "--board nodemcuv2 --verbose" 2 0
+elif [ "$BUILD_TYPE" = "platformio_odd" ]; then
+    # PlatformIO
+    install_platformio
+    build_sketches_with_platformio $TRAVIS_BUILD_DIR/libraries "--board nodemcuv2 --verbose" 2 1
 elif [ "$BUILD_TYPE" = "docs" ]; then
     # Build documentation using Sphinx
     cd $TRAVIS_BUILD_DIR/doc