barrier/clean_build.sh

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#!/bin/sh
cd "$(dirname "$0")" || exit 1
# some environments have cmake v2 as 'cmake' and v3 as 'cmake3'
# check for cmake3 first then fallback to just cmake
B_CMAKE=$(command -v cmake3 2>/dev/null)
if [ "$?" -eq 0 ]; then
# Continue, cmake3 exists in $PATH.
continue
else
# OK, so cmake3 isn't in path, so let's test to see if `cmake` itself exists, before proceeding.
if command -v cmake 2>/dev/null; then
B_CMAKE=$(command -v cmake)
# We have a cmake executable available, now let's proceed!
else
# As self-explanatory, the cmake executable isn't available, so we should fail here.
echo "ERROR: CMake not in $PATH, cannot build! Please install CMake, or if this persists, file a bug report."
exit 1
fi
fi
# Set default build type, but in CI, this is set to Release.
# For downstream distributions, our recommendation is to set this type in your build scripts to Release, and supply Debug build types in your debug packages.
B_BUILD_TYPE=${B_BUILD_TYPE:-Debug}
if [ "$(uname)" = "Darwin" ]; then
# macOS needs a little help, so we source this environment script to fix paths.
if [ ! -e "./macOS_environment.sh" ]; then
echo "macOS environment script not found, this isn't meant to happen!"
exit 1
else
. ./macOS_environment.sh
fi
B_CMAKE_FLAGS="-DCMAKE_OSX_SYSROOT=$(xcode-select --print-path)/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -DCMAKE_OSX_DEPLOYMENT_TARGET=10.9 ${B_CMAKE_FLAGS:-}"
fi
# Source local build variables to the environment, if available.
# If not, continue as normal, and silently.
if [ -e "./build_env.sh" ]; then
. "./build_env.sh"
fi
# Initialise Git submodules
git submodule update --init --recursive
B_CMAKE_FLAGS="-DCMAKE_BUILD_TYPE=${B_BUILD_TYPE} ${B_CMAKE_FLAGS:-}"
# Clear build directory, but do a conditional first!
if [ -d "./build" ]; then
rm -rf ./build
fi
# Previous versions of this script created the build directory, and CD'd into it - CMake allows us to do this another way...
# Note: If you use Ninja (i.e, cmake -GNinja -B build), run Ninja like: "ninja -C build", just like you would with Meson.
$B_CMAKE "$B_CMAKE_FLAGS" -B build || exit 1
echo "INFO: Now commencing Barrier build process..."
echo "INFO: We're building an $B_BUILD_TYPE output type."
$(command -v make) -C build || exit 1
# Implictly, we assume the build was successful due to no exits.
# Later revisions of this script should do conditionals. TODO.
echo "INFO: Success! The build completed successfully!"
exit