CI(macOS): Split off obs-studio build task

Split off the obs-studio build task to help separate CI log sections.

.travis.yml

@@ -35,7 +35,9 @@ matrix:
   - os: osx
     env: _macos_build
     osx_image: xcode8.3
-    before_install: "./CI/install-dependencies-macos.sh"
+    before_install:
+    - "./CI/install-dependencies-macos.sh"
+    - "./CI/install-build-obs-macos.sh"
     script: "./CI/build-macos.sh"
     after_success: 
     - ./CI/package-macos.sh

CI/install-build-obs-macos.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+set -ex
+
+# Build obs-studio
+cd ..
+git clone https://github.com/obsproject/obs-studio
+cd obs-studio
+OBSLatestTag=$(git describe --tags --abbrev=0)
+git checkout $OBSLatestTag
+mkdir build && cd build
+cmake .. \
+  -DDISABLE_PLUGINS=true \
+  -DCMAKE_PREFIX_PATH=/usr/local/opt/qt/lib/cmake \
+&& make -j4

CI/install-dependencies-macos.sh

@@ -12,19 +12,8 @@ brew install qt5
 
 #echo "Qt path: $(find /usr/local/Cellar/qt5 -d 1 | tail -n 1)"
 
-# Build obs-studio
-cd ..
-git clone https://github.com/obsproject/obs-studio
-cd obs-studio
-git checkout 21.0.0
-mkdir build && cd build
-cmake .. \
-  -DDISABLE_PLUGINS=true \
-  -DCMAKE_PREFIX_PATH=/usr/local/opt/qt/lib/cmake \
-&& make -j4
 
 # Packages app
-cd ..
 curl -L -O  http://s.sudre.free.fr/Software/files/Packages.dmg -f --retry 5 -C -
 hdiutil attach ./Packages.dmg
 sudo installer -pkg /Volumes/Packages\ 1.2.3/packages/Packages.pkg -target /