# install-dependencies.ps1 - Install Windows dependencies for building Mercurial

#

# Copyright 2019 Gregory Szorc <gregory.szorc@gmail.com>

#

# This software may be used and distributed according to the terms of the

# GNU General Public License version 2 or any later version.

# This script can be used to bootstrap a Mercurial build environment on

# Windows.

#

# The script makes a lot of assumptions about how things should work.

# For example, the install location of Python is hardcoded to c:\hgdev\*.

#

# The script should be executed from a PowerShell with elevated privileges

# if you don't want to see a UAC prompt for various installers.

#

# The script is tested on Windows 10 and Windows Server 2019 (in EC2).

$VS_BUILD_TOOLS_URL = "https://download.visualstudio.microsoft.com/download/pr/a1603c02-8a66-4b83-b821-811e3610a7c4/aa2db8bb39e0cbd23e9940d8951e0bc3/vs_buildtools.exe"

$VS_BUILD_TOOLS_SHA256 = "911E292B8E6E5F46CBC17003BDCD2D27A70E616E8D5E6E69D5D489A605CAA139"

$VC9_PYTHON_URL = "https://download.microsoft.com/download/7/9/6/796EF2E4-801B-4FC4-AB28-B59FBF6D907B/VCForPython27.msi"

$VC9_PYTHON_SHA256 = "070474db76a2e625513a5835df4595df9324d820f9cc97eab2a596dcbc2f5cbf"

$PYTHON35_x86_URL = "https://www.python.org/ftp/python/3.5.4/python-3.5.4.exe"

$PYTHON35_x86_SHA256 = "F27C2D67FD9688E4970F3BFF799BB9D722A0D6C2C13B04848E1F7D620B524B0E"

$PYTHON35_x64_URL = "https://www.python.org/ftp/python/3.5.4/python-3.5.4-amd64.exe"

$PYTHON35_x64_SHA256 = "9B7741CC32357573A77D2EE64987717E527628C38FD7EAF3E2AACA853D45A1EE"

$PYTHON36_x86_URL = "https://www.python.org/ftp/python/3.6.8/python-3.6.8.exe"

$PYTHON36_x86_SHA256 = "89871D432BC06E4630D7B64CB1A8451E53C80E68DE29029976B12AAD7DBFA5A0"

$PYTHON36_x64_URL = "https://www.python.org/ftp/python/3.6.8/python-3.6.8-amd64.exe"

$PYTHON36_x64_SHA256 = "96088A58B7C43BC83B84E6B67F15E8706C614023DD64F9A5A14E81FF824ADADC"

# PIP 19.2.3.

$PIP_URL = "https://github.com/pypa/get-pip/raw/309a56c5fd94bd1134053a541cb4657a4e47e09d/get-pip.py"

$PIP_SHA256 = "57e3643ff19f018f8a00dfaa6b7e4620e3c1a7a2171fd218425366ec006b3bfe"

$VIRTUALENV_URL = "https://files.pythonhosted.org/packages/66/f0/6867af06d2e2f511e4e1d7094ff663acdebc4f15d4a0cb0fed1007395124/virtualenv-16.7.5.tar.gz"

$VIRTUALENV_SHA256 = "f78d81b62d3147396ac33fc9d77579ddc42cc2a98dd9ea38886f616b33bc7fb2"

$INNO_SETUP_URL = "http://files.jrsoftware.org/is/5/innosetup-5.6.1-unicode.exe"

$INNO_SETUP_SHA256 = "27D49E9BC769E9D1B214C153011978DB90DC01C2ACD1DDCD9ED7B3FE3B96B538"

$MINGW_BIN_URL = "https://osdn.net/frs/redir.php?m=constant&f=mingw%2F68260%2Fmingw-get-0.6.3-mingw32-pre-20170905-1-bin.zip"

$MINGW_BIN_SHA256 = "2AB8EFD7C7D1FC8EAF8B2FA4DA4EEF8F3E47768284C021599BC7435839A046DF"

$MERCURIAL_WHEEL_FILENAME = "mercurial-5.1.2-cp27-cp27m-win_amd64.whl"

$MERCURIAL_WHEEL_URL = "https://files.pythonhosted.org/packages/6d/47/e031e47f7fe9b16e4e3383da47e2b0a7eae6e603996bc67a03ec4fa1b3f4/$MERCURIAL_WHEEL_FILENAME"

$MERCURIAL_WHEEL_SHA256 = "1d18c7f6ca1456f0f62ee65c9a50c14cbba48ce6e924930cdb10537f5c9eaf5f"

# Writing progress slows down downloads substantially. So disable it.

$progressPreference = 'silentlyContinue'

function Secure-Download($url, $path, $sha256) {

    if (Test-Path -Path $path) {

        Get-FileHash -Path $path -Algorithm SHA256 -OutVariable hash

        if ($hash.Hash -eq $sha256) {

            Write-Output "SHA256 of $path verified as $sha256"

            return

        }

        Write-Output "hash mismatch on $path; downloading again"

    }

    Write-Output "downloading $url to $path"

    Invoke-WebRequest -Uri $url -OutFile $path

    Get-FileHash -Path $path -Algorithm SHA256 -OutVariable hash

    if ($hash.Hash -ne $sha256) {

        Remove-Item -Path $path

        throw "hash mismatch when downloading $url; got $($hash.Hash), expected $sha256"

    }

}

function Invoke-Process($path, $arguments) {

    $p = Start-Process -FilePath $path -ArgumentList $arguments -Wait -PassThru -WindowStyle Hidden

    if ($p.ExitCode -ne 0) {

        throw "process exited non-0: $($p.ExitCode)"

    }

}

function Install-Python3($name, $installer, $dest, $pip) {

    Write-Output "installing $name"

    # We hit this when running the script as part of Simple Systems Manager in

    # EC2. The Python 3 installer doesn't seem to like per-user installs

    # when running as the SYSTEM user. So enable global installs if executed in

    # this mode.

    if ($env:USERPROFILE -eq "C:\Windows\system32\config\systemprofile") {

        Write-Output "running with SYSTEM account; installing for all users"

        $allusers = "1"

    }

    else {

        $allusers = "0"

    }

    Invoke-Process $installer "/quiet TargetDir=${dest} InstallAllUsers=${allusers} AssociateFiles=0 CompileAll=0 PrependPath=0 Include_doc=0 Include_launcher=0 InstallLauncherAllUsers=0 Include_pip=0 Include_test=0"

    Invoke-Process ${dest}\python.exe $pip

}

function Install-Dependencies($prefix) {

    if (!(Test-Path -Path $prefix\assets)) {

        New-Item -Path $prefix\assets -ItemType Directory

    }

    $pip = "${prefix}\assets\get-pip.py"

    Secure-Download $VC9_PYTHON_URL ${prefix}\assets\VCForPython27.msi $VC9_PYTHON_SHA256

    Secure-Download $PYTHON27_x86_URL ${prefix}\assets\python27-x86.msi $PYTHON27_x86_SHA256

    Secure-Download $PYTHON27_x64_URL ${prefix}\assets\python27-x64.msi $PYTHON27_x64_SHA256

    Secure-Download $PYTHON35_x86_URL ${prefix}\assets\python35-x86.exe $PYTHON35_x86_SHA256

    Secure-Download $PYTHON35_x64_URL ${prefix}\assets\python35-x64.exe $PYTHON35_x64_SHA256

    Secure-Download $PYTHON36_x86_URL ${prefix}\assets\python36-x86.exe $PYTHON36_x86_SHA256

    Secure-Download $PYTHON36_x64_URL ${prefix}\assets\python36-x64.exe $PYTHON36_x64_SHA256

    Secure-Download $PYTHON37_x86_URL ${prefix}\assets\python37-x86.exe $PYTHON37_x86_SHA256

    Secure-Download $PYTHON37_x64_URL ${prefix}\assets\python37-x64.exe $PYTHON37_x64_SHA256

    Secure-Download $PYTHON38_x86_URL ${prefix}\assets\python38-x86.exe $PYTHON38_x86_SHA256

    Secure-Download $PYTHON38_x64_URL ${prefix}\assets\python38-x64.exe $PYTHON38_x64_SHA256

    Secure-Download $PIP_URL ${pip} $PIP_SHA256

    Secure-Download $VIRTUALENV_URL ${prefix}\assets\virtualenv.tar.gz $VIRTUALENV_SHA256

    Secure-Download $VS_BUILD_TOOLS_URL ${prefix}\assets\vs_buildtools.exe $VS_BUILD_TOOLS_SHA256

    Secure-Download $INNO_SETUP_URL ${prefix}\assets\InnoSetup.exe $INNO_SETUP_SHA256

    Secure-Download $MINGW_BIN_URL ${prefix}\assets\mingw-get-bin.zip $MINGW_BIN_SHA256

    Secure-Download $MERCURIAL_WHEEL_URL ${prefix}\assets\${MERCURIAL_WHEEL_FILENAME} $MERCURIAL_WHEEL_SHA256

    Write-Output "installing Python 2.7 32-bit"

    Invoke-Process msiexec.exe "/i ${prefix}\assets\python27-x86.msi /l* ${prefix}\assets\python27-x86.log /q TARGETDIR=${prefix}\python27-x86 ALLUSERS="

    Invoke-Process ${prefix}\python27-x86\python.exe ${prefix}\assets\get-pip.py

    Invoke-Process ${prefix}\python27-x86\Scripts\pip.exe "install ${prefix}\assets\virtualenv.tar.gz"

    Write-Output "installing Python 2.7 64-bit"

    Invoke-Process msiexec.exe "/i ${prefix}\assets\python27-x64.msi /l* ${prefix}\assets\python27-x64.log /q TARGETDIR=${prefix}\python27-x64 ALLUSERS="

    Invoke-Process ${prefix}\python27-x64\python.exe ${prefix}\assets\get-pip.py

    Invoke-Process ${prefix}\python27-x64\Scripts\pip.exe "install ${prefix}\assets\virtualenv.tar.gz"

    Install-Python3 "Python 3.5 32-bit" ${prefix}\assets\python35-x86.exe ${prefix}\python35-x86 ${pip}

    Install-Python3 "Python 3.5 64-bit" ${prefix}\assets\python35-x64.exe ${prefix}\python35-x64 ${pip}

    Install-Python3 "Python 3.6 32-bit" ${prefix}\assets\python36-x86.exe ${prefix}\python36-x86 ${pip}

    Install-Python3 "Python 3.6 64-bit" ${prefix}\assets\python36-x64.exe ${prefix}\python36-x64 ${pip}

    Install-Python3 "Python 3.7 32-bit" ${prefix}\assets\python37-x86.exe ${prefix}\python37-x86 ${pip}

    Install-Python3 "Python 3.7 64-bit" ${prefix}\assets\python37-x64.exe ${prefix}\python37-x64 ${pip}

    Install-Python3 "Python 3.8 32-bit" ${prefix}\assets\python38-x86.exe ${prefix}\python38-x86 ${pip}

    Install-Python3 "Python 3.8 64-bit" ${prefix}\assets\python38-x64.exe ${prefix}\python38-x64 ${pip}

    Write-Output "installing Visual Studio 2017 Build Tools and SDKs"

    Invoke-Process ${prefix}\assets\vs_buildtools.exe "--quiet --wait --norestart --nocache --channelUri https://aka.ms/vs/15/release/channel --add Microsoft.VisualStudio.Workload.MSBuildTools --add Microsoft.VisualStudio.Component.Windows10SDK.17763 --add Microsoft.VisualStudio.Workload.VCTools --add Microsoft.VisualStudio.Component.Windows10SDK --add Microsoft.VisualStudio.Component.VC.140"

    Write-Output "installing Visual C++ 9.0 for Python 2.7"

    Invoke-Process msiexec.exe "/i ${prefix}\assets\VCForPython27.msi /l* ${prefix}\assets\VCForPython27.log /q"

    Write-Output "installing Inno Setup"

    Invoke-Process ${prefix}\assets\InnoSetup.exe "/SP- /VERYSILENT /SUPPRESSMSGBOXES"

    Write-Output "extracting MinGW base archive"

    Expand-Archive -Path ${prefix}\assets\mingw-get-bin.zip -DestinationPath "${prefix}\MinGW" -Force

    Write-Output "updating MinGW package catalogs"

    Invoke-Process ${prefix}\MinGW\bin\mingw-get.exe "update"

    Write-Output "installing MinGW packages"

    Invoke-Process ${prefix}\MinGW\bin\mingw-get.exe "install msys-base msys-coreutils msys-diffutils msys-unzip"

    # Construct a virtualenv useful for bootstrapping. It conveniently contains a

    # Mercurial install.

    Write-Output "creating bootstrap virtualenv with Mercurial"

    Invoke-Process "$prefix\python27-x64\Scripts\virtualenv.exe" "${prefix}\venv-bootstrap"

    Invoke-Process "${prefix}\venv-bootstrap\Scripts\pip.exe" "install ${prefix}\assets\${MERCURIAL_WHEEL_FILENAME}"

}

function Clone-Mercurial-Repo($prefix, $repo_url, $dest) {

    Write-Output "cloning $repo_url to $dest"

    # TODO Figure out why CA verification isn't working in EC2 and remove

    # --insecure.

    Invoke-Process "${prefix}\venv-bootstrap\Scripts\hg.exe" "clone --insecure $repo_url $dest"

    # Mark repo as non-publishing by default for convenience.

    Add-Content -Path "$dest\.hg\hgrc" -Value "`n[phases]`npublish = false"

}

$prefix = "c:\hgdev"

Install-Dependencies $prefix

Clone-Mercurial-Repo $prefix "https://www.mercurial-scm.org/repo/hg" $prefix\src