1$TARGET = "aarch64-windows-gnu"
 2$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.16.0-dev.104+689461e31"
 3$MCPU = "baseline"
 4$ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
 5$PREFIX_PATH = "$(Get-Location)\..\$ZIG_LLVM_CLANG_LLD_NAME"
 6$ZIG = "$PREFIX_PATH\bin\zig.exe"
 7$ZIG_LIB_DIR = "$(Get-Location)\lib"
 8
 9if (!(Test-Path "..\$ZIG_LLVM_CLANG_LLD_NAME.zip")) {
10    Write-Output "Downloading $ZIG_LLVM_CLANG_LLD_URL"
11    Invoke-WebRequest -Uri "$ZIG_LLVM_CLANG_LLD_URL" -OutFile "..\$ZIG_LLVM_CLANG_LLD_NAME.zip"
12
13    Write-Output "Extracting..."
14    Add-Type -AssemblyName System.IO.Compression.FileSystem ;
15    [System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD\..\$ZIG_LLVM_CLANG_LLD_NAME.zip", "$PWD\..")
16}
17
18function CheckLastExitCode {
19    if (!$?) {
20        exit 1
21    }
22    return 0
23}
24
25# Override the cache directories because they won't actually help other CI runs
26# which will be testing alternate versions of zig, and ultimately would just
27# fill up space on the hard drive for no reason.
28$Env:ZIG_GLOBAL_CACHE_DIR="$(Get-Location)\zig-global-cache"
29$Env:ZIG_LOCAL_CACHE_DIR="$(Get-Location)\zig-local-cache"
30
31Write-Output "Building from source..."
32New-Item -Path 'build-release' -ItemType Directory
33Set-Location -Path 'build-release'
34
35# CMake gives a syntax error when file paths with backward slashes are used.
36# Here, we use forward slashes only to work around this.
37& cmake .. `
38  -GNinja `
39  -DCMAKE_INSTALL_PREFIX="stage3-release" `
40  -DCMAKE_PREFIX_PATH="$($PREFIX_PATH -Replace "\\", "/")" `
41  -DCMAKE_BUILD_TYPE=Release `
42  -DCMAKE_C_COMPILER="$($ZIG -Replace "\\", "/");cc;-target;$TARGET;-mcpu=$MCPU" `
43  -DCMAKE_CXX_COMPILER="$($ZIG -Replace "\\", "/");c++;-target;$TARGET;-mcpu=$MCPU" `
44  -DCMAKE_AR="$ZIG" `
45  -DZIG_AR_WORKAROUND=ON `
46  -DZIG_TARGET_TRIPLE="$TARGET" `
47  -DZIG_TARGET_MCPU="$MCPU" `
48  -DZIG_STATIC=ON `
49  -DZIG_NO_LIB=ON
50CheckLastExitCode
51
52ninja install
53CheckLastExitCode
54
55Write-Output "Main test suite..."
56& "stage3-release\bin\zig.exe" build test docs `
57  --zig-lib-dir "$ZIG_LIB_DIR" `
58  --search-prefix "$PREFIX_PATH" `
59  -Dstatic-llvm `
60  -Dskip-non-native `
61  -Denable-symlinks-windows `
62  --test-timeout 30m
63CheckLastExitCode
64
65# Ensure that stage3 and stage4 are byte-for-byte identical.
66Write-Output "Build and compare stage4..."
67& "stage3-release\bin\zig.exe" build `
68  --prefix stage4-release `
69  -Denable-llvm `
70  -Dno-lib `
71  -Doptimize=ReleaseFast `
72  -Dstrip `
73  -Dtarget="$TARGET" `
74  -Duse-zig-libcxx `
75  -Dversion-string="$(stage3-release\bin\zig version)"
76CheckLastExitCode
77
78# Compare-Object returns an error code if the files differ.
79Write-Output "If the following command fails, it means nondeterminism has been"
80Write-Output "introduced, making stage3 and stage4 no longer byte-for-byte identical."
81Compare-Object (Get-Content stage3-release\bin\zig.exe) (Get-Content stage4-release\bin\zig.exe)
82CheckLastExitCode