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#!/bin/bash
# Download and install MSYS2, needed primarily for the test suite (run-make) but
# also used by the MinGW toolchain for assembling things.
set -euo pipefail
IFS=$'\n\t'
source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
if isWindows; then
msys2Path="c:/msys64"
mkdir -p "${msys2Path}/home/${USERNAME}"
ciCommandAddPath "${msys2Path}/usr/bin"
echo "switching shell to use our own bash"
ciCommandSetEnv CI_OVERRIDE_SHELL "${msys2Path}/usr/bin/bash.exe"
# Detect the native Python version installed on the agent. On GitHub
# Actions, the C:\hostedtoolcache\windows\Python directory contains a
# subdirectory for each installed Python version.
#
# The -V flag of the sort command sorts the input by version number.
native_python_version="$(ls /c/hostedtoolcache/windows/Python | sort -Vr | head -n 1)"
# Make sure we use the native python interpreter instead of some msys equivalent
# one way or another. The msys interpreters seem to have weird path conversions
# baked in which break LLVM's build system one way or another, so let's use the
# native version which keeps everything as native as possible.
python_home="/c/hostedtoolcache/windows/Python/${native_python_version}/x64"
cp "${python_home}/python.exe" "${python_home}/python3.exe"
ciCommandAddPath "C:\\hostedtoolcache\\windows\\Python\\${native_python_version}\\x64"
ciCommandAddPath "C:\\hostedtoolcache\\windows\\Python\\${native_python_version}\\x64\\Scripts"
fi
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