contrib/install-windows-dependencies.ps1

discovery: only calculate closed branches if required

The number of new closed branches is required for printing in error message. So
let's only calculate them if we need to print error about new branches.

Differential Revision: https://phab.mercurial-scm.org/D6314

# install-dependencies.ps1 - Install Windows dependencies for building Mercurial
#
# Copyright 2019 Gregory Szorc <[e-mail]>
#
# 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"

$PYTHON27_x64_URL = "https://www.python.org/ftp/python/2.7.16/python-2.7.16.amd64.msi"
$PYTHON27_x64_SHA256 = "7c0f45993019152d46041a7db4b947b919558fdb7a8f67bcd0535bc98d42b603"
$PYTHON27_X86_URL = "https://www.python.org/ftp/python/2.7.16/python-2.7.16.msi"
$PYTHON27_X86_SHA256 = "d57dc3e1ba490aee856c28b4915d09e3f49442461e46e481bc6b2d18207831d7"

$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"

$PYTHON37_x86_URL = "https://www.python.org/ftp/python/3.7.2/python-3.7.2.exe"
$PYTHON37_x86_SHA256 = "8BACE330FB409E428B04EEEE083DD9CA7F6C754366D07E23B3853891D8F8C3D0"
$PYTHON37_x64_URL = "https://www.python.org/ftp/python/3.7.2/python-3.7.2-amd64.exe"
$PYTHON37_x64_SHA256 = "0FE2A696F5A3E481FED795EF6896ED99157BCEF273EF3C4A96F2905CBDB3AA13"

$PYTHON38_x86_URL = "https://www.python.org/ftp/python/3.8.0/python-3.8.0a2.exe"
$PYTHON38_x86_SHA256 = "013A7DDD317679FE51223DE627688CFCB2F0F1128FD25A987F846AEB476D3FEF"
$PYTHON38_x64_URL = "https://www.python.org/ftp/python/3.8.0/python-3.8.0a2-amd64.exe"
$PYTHON38_X64_SHA256 = "560BC6D1A76BCD6D544AC650709F3892956890753CDCF9CE67E3D7302D76FB41"

# PIP 19.0.3.
$PIP_URL = "https://github.com/pypa/get-pip/raw/fee32c376da1ff6496a798986d7939cd51e1644f/get-pip.py"
$PIP_SHA256 = "efe99298f3fbb1f56201ce6b81d2658067d2f7d7dfc2d412e0d3cacc9a397c61"

$VIRTUALENV_URL = "https://files.pythonhosted.org/packages/37/db/89d6b043b22052109da35416abc3c397655e4bd3cff031446ba02b9654fa/virtualenv-16.4.3.tar.gz"
$VIRTUALENV_SHA256 = "984d7e607b0a5d1329425dd8845bd971b957424b5ba664729fab51ab8c11bc39"

$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-4.9-cp27-cp27m-win_amd64.whl"
$MERCURIAL_WHEEL_URL = "https://files.pythonhosted.org/packages/fe/e8/b872d53dfbbf986bdc46af0b30f580b227fb59bddd2587152a55e205b0cc/$MERCURIAL_WHEEL_FILENAME"
$MERCURIAL_WHEEL_SHA256 = "218cc2e7c3f1d535007febbb03351663897edf27df0e57d6842e3b686492b429"

# 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