Add script to install pre-build packages on Linux and Windows

Author: shahmishal

.github/scripts/prebuild.ps1

@@ -0,0 +1,40 @@
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift open source project
+##
+## Copyright (c) 2025 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See http://swift.org/LICENSE.txt for license information
+## See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+param (
+    [switch]$SkipAndroid,
+    [switch]$InstallCMake
+)
+
+# winget isn't easily made available in containers, so use chocolatey
+Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
+
+if ($InstallCMake) {
+    choco install -y cmake --installargs 'ADD_CMAKE_TO_PATH=System' --apply-install-arguments-to-dependencies
+    choco install -y ninja
+
+    Import-Module $env:ChocolateyInstall\helpers\chocolateyProfile.psm1
+    refreshenv
+
+    # Let swiftc find the path to link.exe in the CMake smoke test
+    $env:Path += ";$(Split-Path -Path "$(& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" "-latest" -products Microsoft.VisualStudio.Product.BuildTools -find VC\Tools\MSVC\*\bin\HostX64\x64\link.exe)" -Parent)"
+}
+
+if (-not $SkipAndroid) {
+    choco install -y android-ndk
+
+    Import-Module $env:ChocolateyInstall\helpers\chocolateyProfile.psm1
+    refreshenv
+
+    # Work around a bug in the package causing the env var to be set incorrectly
+    $env:ANDROID_NDK_ROOT = $env:ANDROID_NDK_ROOT.replace('-windows.zip','')
+}

.github/scripts/prebuild.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift open source project
+##
+## Copyright (c) 2025 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See http://swift.org/LICENSE.txt for license information
+## See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -e
+
+if [[ $(uname) == Darwin ]] ; then
+    if [[ "$INSTALL_CMAKE" == "1" ]] ; then
+        mkdir -p "$RUNNER_TOOL_CACHE"
+        if ! command -v cmake >/dev/null 2>&1 ; then
+            curl -fsSLO https://github.com/Kitware/CMake/releases/download/v4.1.2/cmake-4.1.2-macos-universal.tar.gz
+            echo '3be85f5b999e327b1ac7d804cbc9acd767059e9f603c42ec2765f6ab68fbd367 cmake-4.1.2-macos-universal.tar.gz' > cmake-4.1.2-macos-universal.tar.gz.sha256
+            sha256sum -c cmake-4.1.2-macos-universal.tar.gz.sha256
+            tar -xf cmake-4.1.2-macos-universal.tar.gz
+            ln -s "$PWD/cmake-4.1.2-macos-universal/CMake.app/Contents/bin/cmake" "$RUNNER_TOOL_CACHE/cmake"
+        fi
+        if ! command -v ninja >/dev/null 2>&1 ; then
+            curl -fsSLO https://github.com/ninja-build/ninja/releases/download/v1.13.1/ninja-mac.zip
+            echo 'da7797794153629aca5570ef7c813342d0be214ba84632af886856e8f0063dd9 ninja-mac.zip' > ninja-mac.zip.sha256
+            sha256sum -c ninja-mac.zip.sha256
+            unzip ninja-mac.zip
+            rm -f ninja-mac.zip
+            mv ninja "$RUNNER_TOOL_CACHE/ninja"
+        fi
+    fi
+elif command -v apt-get >/dev/null 2>&1 ; then # bookworm, noble, jammy
+    export DEBIAN_FRONTEND=noninteractive
+
+    apt-get update -y
+
+    # Build dependencies
+    apt-get install -y libsqlite3-dev libncurses-dev
+
+    # Debug symbols
+    apt-get install -y libc6-dbg
+
+    if [[ "$INSTALL_CMAKE" == "1" ]] ; then
+        apt-get install -y cmake ninja-build
+    fi
+
+    # Android NDK
+    dpkg_architecture="$(dpkg --print-architecture)"
+    if [[ "$SKIP_ANDROID" != "1" ]] && [[ "$dpkg_architecture" == amd64 ]] ; then
+        eval "$(cat /etc/os-release)"
+        case "$VERSION_CODENAME" in
+            bookworm|jammy)
+                : # Not available
+                ;;
+            noble)
+                apt-get install -y google-android-ndk-r26c-installer
+                ;;
+            *)
+                echo "Unable to fetch Android NDK for unknown Linux distribution: $VERSION_CODENAME" >&2
+                exit 1
+        esac
+    else
+        echo "Skipping Android NDK installation on $dpkg_architecture" >&2
+    fi
+elif command -v dnf >/dev/null 2>&1 ; then # rhel-ubi9
+    dnf update -y
+
+    # Build dependencies
+    dnf install -y sqlite-devel ncurses-devel
+
+    # Debug symbols
+    dnf debuginfo-install -y glibc
+elif command -v yum >/dev/null 2>&1 ; then # amazonlinux2
+    yum update -y
+
+    # Build dependencies
+    yum install -y sqlite-devel ncurses-devel
+
+    # Debug symbols
+    yum install -y yum-utils
+    debuginfo-install -y glibc
+fi

.github/workflows/pull_request.yml

@@ -18,8 +18,9 @@ jobs:
     with:
       linux_os_versions: '["amazonlinux2", "bookworm", "noble", "jammy", "rhel-ubi9"]'
       linux_swift_versions: '["nightly-main"]'
-      linux_pre_build_command: 'curl -L https://raw.githubusercontent.com/swiftlang/swift-build/refs/heads/main/.github/scripts/prebuild.sh > prebuild.sh && sh prebuild.sh'
+      linux_pre_build_command: ./.github/scripts/prebuild.sh
       windows_swift_versions: '["nightly-main"]'
+      windows_pre_build_command: 'Invoke-Program .\.github\scripts\prebuild.ps1'
       enable_android_sdk_build: true
       android_sdk_build_command: "swift build --build-tests"
       android_ndk_versions: '["r27d", "r29"]'