Scripts to build and package dependencies for OBS on CI

• Homebrew (https://brew.sh)
• Python 3 - either installed via homebrew (brew install python) or system-provided (macOS 10.15 Catalina)
• PyYAML - installed via pip3 install pyyaml

• Checkout obs-deps from Github:

git clone https://github.com/obsproject/obs-deps.git

• Enter the obs-deps directory
• Enter the macos directory
• (Optional) Create the build scripts by running ./build_script_generator.py .github/workflows/build_deps.yml
• Run bash ./build-script-macos-01.sh to build main dependencies
• Run bash ./build-script-macos-02.sh to build Qt dependency

• Common directory to place obs-deps is /tmp/obsdeps/, but a custom path can be used
• Unpack pre-built dependencies to /tmp by running tar -xf ./macos-deps-VERSION.tar.gz -C /tmp (replace VERSION with the downloaded/desired version)
• Unpack pre-built Qt dependency to /tmp by running tar -xf ./macos-qt-QT_VERSION-VERSION.tar.gz -C /tmp (replace QT_VERSION and VERSION with the downloaded/desired versions)
• IMPORTANT: Remove the quarantine attribute from the downloaded Qt dependencies by running xattr -r -d com.apple.quarantine /tmp/obsdeps
• Use /tmp/obsdeps as QTDIR, SWIGDIR, and DepsPath when invoking cmake for OBS:

cmake -DCMAKE_OSX_DEPLOYMENT_TARGET=10.13 -DQTDIR="/tmp/obsdeps" -DSWIGDIR="/tmp/obsdeps" -DDepsPath="/tmp/obsdeps" [..]