Added OSX build on travis.

.gitignore

@@ -2,3 +2,5 @@
 output/
 samples/PhotoFrame/\.vscode/ 
 samples/PhotoFrame/\.idea/ 
+build/Qt/
+build/qtci/

.travis.yml

@@ -1,4 +1,17 @@
-sudo: required
+matrix:
+  include:
+    - os: linux
+      dist: trusty
+      sudo: required
+      services: docker
+    - os: osx
+      osx_image: xcode9.4
+      language: csharp
+      mono: none
+      dotnet: 2.1.302
+cache:
+    directories:
+     - build/Qt
 if: tag IS blank
 services:
   - docker

build/scripts/Program.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Threading.Tasks;
 using static Bullseye.Targets;
 using static Build.Buildary.Directory;
@@ -25,7 +26,17 @@ static Task<int> Main(string[] args)
 
             Add("test", () =>
             {
-                RunShell($"dotnet test src/net/Qml.Net.Tests/ {commandBuildArgs}");
+                if (IsOSX())
+                {
+                    // OSX prevent's DYLD_LIBRARY_PATH from being sent to
+                    // child shells. We must manually send it.
+                    var ldLibraryPath = Environment.GetEnvironmentVariable("DYLD_LIBRARY_PATH");
+                    RunShell($"DYLD_LIBRARY_PATH={ldLibraryPath} dotnet test src/net/Qml.Net.Tests/ {commandBuildArgs}");
+                }
+                else
+                {
+                    RunShell($"dotnet test src/net/Qml.Net.Tests/ {commandBuildArgs}");
+                }
             });
 
             Add("build-native", () =>

build/travis.linux.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+
+$SCRIPT_DIR/docker/build-linux-ci.sh
+
+docker run -it --rm \
+    -v $SCRIPT_DIR/../:/work \
+    -w /work \
+    -e LD_LIBRARY_PATH=/work/src/native/output \
+    -e QT_QPA_PLATFORM=offscreen \
+    net-core-qml-linux-ci \
+    ./build.sh ci

build/travis.osx.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -ex
+
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+QT_DIR=$SCRIPT_DIR/Qt
+
+if [ ! -e $QT_DIR ]; then
+
+    # Checkout some helper scripts for installing Qt in ci.
+    if [ ! -e $SCRIPT_DIR/qtci ]; then
+        git clone https://github.com/benlau/qtci $SCRIPT_DIR/qtci
+    fi
+    export PATH=$PATH:$SCRIPT_DIR/qtci/bin:$SCRIPT_DIR/qtci/recipes
+
+    DOWNLOAD_URL="https://download.qt.io/archive/qt/5.11/5.11.1/qt-opensource-mac-x64-5.11.1.dmg"
+    INSTALLER=`basename $DOWNLOAD_URL`
+    INSTALLER_NAME=${INSTALLER%.*}
+    APPFILE=/Volumes/${INSTALLER_NAME}/${INSTALLER_NAME}.app/Contents/MacOS/${INSTALLER_NAME}
+
+    if [ ! -e ${INSTALLER} ]; then
+        echo "Downloading ${DOWNLOAD_URL}..."
+        wget -c $DOWNLOAD_URL > /dev/null 2>&1
+    fi
+
+    echo "Mounting and extracting Qt..."
+    hdiutil mount ${INSTALLER}
+    export QT_CI_PACKAGES=qt.qt5.5111.qtvirtualkeyboard.clang_64,qt.qt5.5111.clang_64
+    extract-qt-installer $APPFILE $QT_DIR
+
+fi
+
+export PATH=$PATH:$QT_DIR/5.11.1/clang_64/bin
+export DYLD_LIBRARY_PATH=$TRAVIS_BUILD_DIR/src/native/output
+
+# We need to source this script, so that DYLD_LIBRARY_PATH get's passed.
+. $TRAVIS_BUILD_DIR/build.sh ci

build/travis.sh

@@ -3,12 +3,17 @@ set -e
 
 SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 
-$SCRIPT_DIR/docker/build-linux-ci.sh
-
-docker run -it --rm \
-    -v $SCRIPT_DIR/../:/work \
-    -w /work \
-    -e LD_LIBRARY_PATH=/work/src/native/output \
-    -e QT_QPA_PLATFORM=offscreen \
-    net-core-qml-linux-ci \
-    ./build.sh ci
+if [ "$TRAVIS_OS_NAME" == "linux" ]; then
+
+$SCRIPT_DIR/travis.linux.sh
+
+elif [ "$TRAVIS_OS_NAME" == "osx" ]; then
+
+$SCRIPT_DIR/travis.osx.sh
+
+else
+
+echo "Unsupported os."
+exit 1
+
+fi

src/native/QmlNet/QmlNet.pro

@@ -40,3 +40,7 @@ win32 {
     INSTALLS += qtqml
 }
 
+macx {
+    # See here: https://stackoverflow.com/questions/51638447/c-sharp-pinvoke-returning-invalid-wrong-bool-value-only-when-native-code-compil
+    CONFIG += debug
+}

src/native/build.sh

@@ -10,4 +10,4 @@ mkdir -p $BUILD_DIR
 cd $BUILD_DIR
 PREFIX=$OUTPUT_DIR qmake ../QmlNet
 make
-make install
+make install