GitHub Actions: first CI/CD build for Mac based on GitHub Actions

This feature is in beta right now and might change without notice, but instead
of dealing with the broken Travis Mac builds, this does seem progress.

The build artifact seems to work, but it's a bit more painful to get to. Go to
https://github.com/Subsurface-divelog/subsurface/actions and click on the
corresponding run - it's then in the top right corner under Artifacts. The one
oddity is that after unzipping the file you need to manually make
Contents/MacOS/Subsurface executable.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
new file mode 100644
index 000000000..0b7183c4e
--- /dev/null
+++ b/.github/workflows/mac.yml
@@ -0,0 +1,84 @@
+name: Mac
+on: push
+
+jobs:
+  desktopBuild:
+    runs-on: macOS-latest
+    steps:
+    - name: checkout sources
+      uses: actions/checkout@v1
+    - name: setup Homebrew
+      run: brew install autoconf automake libtool xz hidapi libusb libxml2 libxslt libzip openssl pkg-config libgit2 libssh2
+    - name: set our Qt build
+      run: |
+        mkdir -p Qt/5.13.0
+        curl --output Qt-5.13.0-mac.tar.xz https://f002.backblazeb2.com/file/Subsurface-Travis/Qt-5.13.0-mac.tar.xz
+        tar -xJ -C Qt/5.13.0 -f Qt-5.13.0-mac.tar.xz
+    - name: build Subsurface
+      run: |
+        cd ${GITHUB_WORKSPACE}/..
+        export QT_ROOT=${GITHUB_WORKSPACE}/Qt/5.13.0/clang_64
+        export PATH=$QT_ROOT/bin:$PATH
+        export CMAKE_PREFIX_PATH=$QT_ROOT/lib/cmake
+        DIR=$(pwd)
+
+        # first build Subsurface-mobile to ensure this didn't get broken
+        bash -e -x ./subsurface/scripts/build.sh -mobile
+
+        # now Subsurface with WebKit
+        bash -e -x ./subsurface/scripts/build.sh -desktop -build-with-webkit -release
+
+        cd ${GITHUB_WORKSPACE}/build
+
+        # build export-html to make sure that didn't get broken
+        make export-html
+
+    - name: package Subsurface
+      run: |
+        cd ${GITHUB_WORKSPACE}/build
+        # next build and install Subsurface and then clean up the staging area
+        LIBRARY_PATH=${DIR}/install-root/lib make -j2 install
+
+        # now adjust a few references that macdeployqt appears to miss
+        EXECUTABLE=Subsurface.app/Contents/MacOS/Subsurface
+        for i in libgit2 libGrantlee_TextDocument.dylib libGrantlee_Templates.dylib; do
+                OLD=$(otool -L ${EXECUTABLE} | grep $i | cut -d\  -f1 | tr -d "\t")
+                if [[ ! -z ${OLD} && ! -f Subsurface.app/Contents/Frameworks/$(basename ${OLD}) ]] ; then
+                        # copy the library into the bundle and make sure its id and the reference to it are correct
+                        cp ${DIR}/install-root/lib/$(basename ${OLD}) Subsurface.app/Contents/Frameworks
+                        SONAME=$(basename $OLD)
+                        install_name_tool -change ${OLD} @executable_path/../Frameworks/${SONAME} ${EXECUTABLE}
+                        install_name_tool -id @executable_path/../Frameworks/${SONAME} Subsurface.app/Contents/Frameworks/${SONAME}
+                fi
+        done
+
+        # next, replace @rpath references with @executable_path references in Subsurface
+        RPATH=$(otool -L ${EXECUTABLE} | grep rpath  | cut -d\  -f1 | tr -d "\t" | cut -b 8- )
+        for i in ${RPATH}; do
+                install_name_tool -change @rpath/$i @executable_path/../Frameworks/$i ${EXECUTABLE}
+        done
+
+        # next deal with libGrantlee
+        LIBG=$(ls Subsurface.app/Contents/Frameworks/libGrantlee_Templates*dylib)
+        for i in QtScript.framework/Versions/5/QtScript QtCore.framework/Versions/5/QtCore ; do
+                install_name_tool -change @rpath/$i @executable_path/../Frameworks/$i ${LIBG}
+        done
+
+        # clean up shared library dependency in the Grantlee plugins
+        GRANTLEE_VERSION=$(basename Subsurface.app/Contents/PlugIns/grantlee/5.*)
+        for i in Subsurface.app/Contents/PlugIns/grantlee/${GRANTLEE_VERSION}/*.so; do
+                OLD=$(otool -L $i | grep libGrantlee_Templates | cut -d\  -f1 | tr -d "\t")
+                SONAME=$(basename $OLD )
+                install_name_tool -change ${OLD} @executable_path/../Frameworks/${SONAME} $i;
+                OLD=$(otool -L $i | grep QtCore | cut -d\  -f1 | tr -d "\t")
+                install_name_tool -change ${OLD} @executable_path/../Frameworks/QtCore.framework/QtCore $i;
+                pushd Subsurface.app/Contents/PlugIns/grantlee
+                ln -s ${GRANTLEE_VERSION}/$(basename $i) .
+                popd
+        done
+
+    - name: publish result
+      uses: actions/upload-artifact@v1
+      with:
+        name: Subsurface-GitHub-Build.app
+        path: build/Subsurface.app