contrib: install PyOxidizer in Linux and Windows environments

For Linux, this was trivial.

For Windows, we need to teach the powershell script to install
Rust as well. This was also pretty straightforward.

Differential Revision: https://phab.mercurial-scm.org/D8468

contrib/automation/hgautomation/linux.py

@@ -1,595 +1,597 b''
 # linux.py - Linux specific automation functionality
 #
 # 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.
 
 # no-check-code because Python 3 native.
 
 import os
 import pathlib
 import shlex
 import subprocess
 import tempfile
 
 from .ssh import exec_command
 
 
 # Linux distributions that are supported.
 DISTROS = {
     'debian9',
     'debian10',
     'ubuntu18.04',
     'ubuntu19.04',
 }
 
 INSTALL_PYTHONS = r'''
 PYENV2_VERSIONS="2.7.17 pypy2.7-7.2.0"
 PYENV3_VERSIONS="3.5.9 3.6.10 3.7.7 3.8.2 pypy3.5-7.0.0 pypy3.6-7.3.0"
 
 git clone https://github.com/pyenv/pyenv.git /hgdev/pyenv
 pushd /hgdev/pyenv
 git checkout 3005c4664372ae13fbe376be699313eb428c8bdd
 popd
 
 export PYENV_ROOT="/hgdev/pyenv"
 export PATH="$PYENV_ROOT/bin:$PATH"
 
 # pip 19.2.3.
 PIP_SHA256=57e3643ff19f018f8a00dfaa6b7e4620e3c1a7a2171fd218425366ec006b3bfe
 wget -O get-pip.py --progress dot:mega https://github.com/pypa/get-pip/raw/309a56c5fd94bd1134053a541cb4657a4e47e09d/get-pip.py
 echo "${PIP_SHA256} get-pip.py" | sha256sum --check -
 
 VIRTUALENV_SHA256=f78d81b62d3147396ac33fc9d77579ddc42cc2a98dd9ea38886f616b33bc7fb2
 VIRTUALENV_TARBALL=virtualenv-16.7.5.tar.gz
 wget -O ${VIRTUALENV_TARBALL} --progress dot:mega https://files.pythonhosted.org/packages/66/f0/6867af06d2e2f511e4e1d7094ff663acdebc4f15d4a0cb0fed1007395124/${VIRTUALENV_TARBALL}
 echo "${VIRTUALENV_SHA256} ${VIRTUALENV_TARBALL}" | sha256sum --check -
 
 for v in ${PYENV2_VERSIONS}; do
     pyenv install -v ${v}
     ${PYENV_ROOT}/versions/${v}/bin/python get-pip.py
     ${PYENV_ROOT}/versions/${v}/bin/pip install ${VIRTUALENV_TARBALL}
     ${PYENV_ROOT}/versions/${v}/bin/pip install -r /hgdev/requirements-py2.txt
 done
 
 for v in ${PYENV3_VERSIONS}; do
     pyenv install -v ${v}
     ${PYENV_ROOT}/versions/${v}/bin/python get-pip.py
     ${PYENV_ROOT}/versions/${v}/bin/pip install -r /hgdev/requirements-py3.txt
 done
 
 pyenv global ${PYENV2_VERSIONS} ${PYENV3_VERSIONS} system
 '''.lstrip().replace(
     '\r\n', '\n'
 )
 
 
 INSTALL_RUST = r'''
 RUSTUP_INIT_SHA256=a46fe67199b7bcbbde2dcbc23ae08db6f29883e260e23899a88b9073effc9076
 wget -O rustup-init --progress dot:mega https://static.rust-lang.org/rustup/archive/1.18.3/x86_64-unknown-linux-gnu/rustup-init
 echo "${RUSTUP_INIT_SHA256} rustup-init" | sha256sum --check -
 
 chmod +x rustup-init
 sudo -H -u hg -g hg ./rustup-init -y
-sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup install 1.31.1 1.34.2
+sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup install 1.31.1 1.42.0
 sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup component add clippy
+
+sudo -H -u hg -g hg /home/hg/.cargo/bin/cargo install --version 0.7.0 pyoxidizer
 '''
 
 
 BOOTSTRAP_VIRTUALENV = r'''
 /usr/bin/virtualenv /hgdev/venv-bootstrap
 
 HG_SHA256=35fc8ba5e0379c1b3affa2757e83fb0509e8ac314cbd9f1fd133cf265d16e49f
 HG_TARBALL=mercurial-5.1.1.tar.gz
 
 wget -O ${HG_TARBALL} --progress dot:mega https://www.mercurial-scm.org/release/${HG_TARBALL}
 echo "${HG_SHA256} ${HG_TARBALL}" | sha256sum --check -
 
 /hgdev/venv-bootstrap/bin/pip install ${HG_TARBALL}
 '''.lstrip().replace(
     '\r\n', '\n'
 )
 
 
 BOOTSTRAP_DEBIAN = (
     r'''
 #!/bin/bash
 
 set -ex
 
 DISTRO=`grep DISTRIB_ID /etc/lsb-release  | awk -F= '{{print $2}}'`
 DEBIAN_VERSION=`cat /etc/debian_version`
 LSB_RELEASE=`lsb_release -cs`
 
 sudo /usr/sbin/groupadd hg
 sudo /usr/sbin/groupadd docker
 sudo /usr/sbin/useradd -g hg -G sudo,docker -d /home/hg -m -s /bin/bash hg
 sudo mkdir /home/hg/.ssh
 sudo cp ~/.ssh/authorized_keys /home/hg/.ssh/authorized_keys
 sudo chown -R hg:hg /home/hg/.ssh
 sudo chmod 700 /home/hg/.ssh
 sudo chmod 600 /home/hg/.ssh/authorized_keys
 
 cat << EOF | sudo tee /etc/sudoers.d/90-hg
 hg ALL=(ALL) NOPASSWD:ALL
 EOF
 
 sudo apt-get update
 sudo DEBIAN_FRONTEND=noninteractive apt-get -yq dist-upgrade
 
 # Install packages necessary to set up Docker Apt repo.
 sudo DEBIAN_FRONTEND=noninteractive apt-get -yq install --no-install-recommends \
     apt-transport-https \
     gnupg
 
 cat > docker-apt-key << EOF
 -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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 FYBa5Ig9PxwGQOgq6RDKDbV+PqTQT5EFMeR1mrjckk4DQJjbxeMZbiNMG5kGECA8
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 jCxcpDzNmXpWQHEtHU7649OXHP7UeNST1mCUCH5qdank0V1iejF6/CfTFU4MfcrG
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 =0YYh
 -----END PGP PUBLIC KEY BLOCK-----
 EOF
 
 sudo apt-key add docker-apt-key
 
 if [ "$LSB_RELEASE" = "stretch" ]; then
 cat << EOF | sudo tee -a /etc/apt/sources.list
 # Need backports for clang-format-6.0
 deb http://deb.debian.org/debian stretch-backports main
 EOF
 fi
 
 if [ "$LSB_RELEASE" = "stretch" -o "$LSB_RELEASE" = "buster" ]; then
 cat << EOF | sudo tee -a /etc/apt/sources.list
 # Sources are useful if we want to compile things locally.
 deb-src http://deb.debian.org/debian $LSB_RELEASE main
 deb-src http://security.debian.org/debian-security $LSB_RELEASE/updates main
 deb-src http://deb.debian.org/debian $LSB_RELEASE-updates main
 deb-src http://deb.debian.org/debian $LSB_RELEASE-backports main
 
 deb [arch=amd64] https://download.docker.com/linux/debian $LSB_RELEASE stable
 EOF
 
 elif [ "$DISTRO" = "Ubuntu" ]; then
 cat << EOF | sudo tee -a /etc/apt/sources.list
 deb [arch=amd64] https://download.docker.com/linux/ubuntu $LSB_RELEASE stable
 EOF
 
 fi
 
 sudo apt-get update
 
 PACKAGES="\
     awscli \
     btrfs-progs \
     build-essential \
     bzr \
     clang-format-6.0 \
     cvs \
     darcs \
     debhelper \
     devscripts \
     docker-ce \
     dpkg-dev \
     dstat \
     emacs \
     gettext \
     git \
     htop \
     iotop \
     jfsutils \
     libbz2-dev \
     libexpat1-dev \
     libffi-dev \
     libgdbm-dev \
     liblzma-dev \
     libncurses5-dev \
     libnss3-dev \
     libreadline-dev \
     libsqlite3-dev \
     libssl-dev \
     netbase \
     ntfs-3g \
     nvme-cli \
     pyflakes \
     pyflakes3 \
     pylint \
     pylint3 \
     python-all-dev \
     python-dev \
     python-docutils \
     python-fuzzywuzzy \
     python-pygments \
     python-subversion \
     python-vcr \
     python3-boto3 \
     python3-dev \
     python3-docutils \
     python3-fuzzywuzzy \
     python3-pygments \
     python3-vcr \
     python3-venv \
     rsync \
     sqlite3 \
     subversion \
     tcl-dev \
     tk-dev \
     tla \
     unzip \
     uuid-dev \
     vim \
     virtualenv \
     wget \
     xfsprogs \
     zip \
     zlib1g-dev"
 
 if [ "LSB_RELEASE" = "stretch" ]; then
     PACKAGES="$PACKAGES linux-perf"
 elif [ "$DISTRO" = "Ubuntu" ]; then
     PACKAGES="$PACKAGES linux-tools-common"
 fi
 
 # Monotone only available in older releases.
 if [ "$LSB_RELEASE" = "stretch" -o "$LSB_RELEASE" = "xenial" ]; then
     PACKAGES="$PACKAGES monotone"
 fi
 
 sudo DEBIAN_FRONTEND=noninteractive apt-get -yq install --no-install-recommends $PACKAGES
 
 # Create clang-format symlink so test harness finds it.
 sudo update-alternatives --install /usr/bin/clang-format clang-format \
     /usr/bin/clang-format-6.0 1000
 
 sudo mkdir /hgdev
 # Will be normalized to hg:hg later.
 sudo chown `whoami` /hgdev
 
 {install_rust}
 
 cp requirements-py2.txt /hgdev/requirements-py2.txt
 cp requirements-py3.txt /hgdev/requirements-py3.txt
 
 # Disable the pip version check because it uses the network and can
 # be annoying.
 cat << EOF | sudo tee -a /etc/pip.conf
 [global]
 disable-pip-version-check = True
 EOF
 
 {install_pythons}
 {bootstrap_virtualenv}
 
 /hgdev/venv-bootstrap/bin/hg clone https://www.mercurial-scm.org/repo/hg /hgdev/src
 
 # Mark the repo as non-publishing.
 cat >> /hgdev/src/.hg/hgrc << EOF
 [phases]
 publish = false
 EOF
 
 sudo chown -R hg:hg /hgdev
 '''.lstrip()
     .format(
         install_rust=INSTALL_RUST,
         install_pythons=INSTALL_PYTHONS,
         bootstrap_virtualenv=BOOTSTRAP_VIRTUALENV,
     )
     .replace('\r\n', '\n')
 )
 
 
 # Prepares /hgdev for operations.
 PREPARE_HGDEV = '''
 #!/bin/bash
 
 set -e
 
 FS=$1
 
 ensure_device() {
     if [ -z "${DEVICE}" ]; then
         echo "could not find block device to format"
         exit 1
     fi
 }
 
 # Determine device to partition for extra filesystem.
 # If only 1 volume is present, it will be the root volume and
 # should be /dev/nvme0. If multiple volumes are present, the
 # root volume could be nvme0 or nvme1. Use whichever one doesn't have
 # a partition.
 if [ -e /dev/nvme1n1 ]; then
     if [ -e /dev/nvme0n1p1 ]; then
         DEVICE=/dev/nvme1n1
     else
         DEVICE=/dev/nvme0n1
     fi
 else
     DEVICE=
 fi
 
 sudo mkdir /hgwork
 
 if [ "${FS}" != "default" -a "${FS}" != "tmpfs" ]; then
     ensure_device
     echo "creating ${FS} filesystem on ${DEVICE}"
 fi
 
 if [ "${FS}" = "default" ]; then
     :
 
 elif [ "${FS}" = "btrfs" ]; then
     sudo mkfs.btrfs ${DEVICE}
     sudo mount ${DEVICE} /hgwork
 
 elif [ "${FS}" = "ext3" ]; then
     # lazy_journal_init speeds up filesystem creation at the expense of
     # integrity if things crash. We are an ephemeral instance, so we don't
     # care about integrity.
     sudo mkfs.ext3 -E lazy_journal_init=1 ${DEVICE}
     sudo mount ${DEVICE} /hgwork
 
 elif [ "${FS}" = "ext4" ]; then
     sudo mkfs.ext4 -E lazy_journal_init=1 ${DEVICE}
     sudo mount ${DEVICE} /hgwork
 
 elif [ "${FS}" = "jfs" ]; then
     sudo mkfs.jfs ${DEVICE}
     sudo mount ${DEVICE} /hgwork
 
 elif [ "${FS}" = "tmpfs" ]; then
     echo "creating tmpfs volume in /hgwork"
     sudo mount -t tmpfs -o size=1024M tmpfs /hgwork
 
 elif [ "${FS}" = "xfs" ]; then
     sudo mkfs.xfs ${DEVICE}
     sudo mount ${DEVICE} /hgwork
 
 else
     echo "unsupported filesystem: ${FS}"
     exit 1
 fi
 
 echo "/hgwork ready"
 
 sudo chown hg:hg /hgwork
 mkdir /hgwork/tmp
 chown hg:hg /hgwork/tmp
 
 rsync -a /hgdev/src /hgwork/
 '''.lstrip().replace(
     '\r\n', '\n'
 )
 
 
 HG_UPDATE_CLEAN = '''
 set -ex
 
 HG=/hgdev/venv-bootstrap/bin/hg
 
 cd /hgwork/src
 ${HG} --config extensions.purge= purge --all
 ${HG} update -C $1
 ${HG} log -r .
 '''.lstrip().replace(
     '\r\n', '\n'
 )
 
 
 def prepare_exec_environment(ssh_client, filesystem='default'):
     """Prepare an EC2 instance to execute things.
 
     The AMI has an ``/hgdev`` bootstrapped with various Python installs
     and a clone of the Mercurial repo.
 
     In EC2, EBS volumes launched from snapshots have wonky performance behavior.
     Notably, blocks have to be copied on first access, which makes volume
     I/O extremely slow on fresh volumes.
 
     Furthermore, we may want to run operations, tests, etc on alternative
     filesystems so we examine behavior on different filesystems.
 
     This function is used to facilitate executing operations on alternate
     volumes.
     """
     sftp = ssh_client.open_sftp()
 
     with sftp.open('/hgdev/prepare-hgdev', 'wb') as fh:
         fh.write(PREPARE_HGDEV)
         fh.chmod(0o0777)
 
     command = 'sudo /hgdev/prepare-hgdev %s' % filesystem
     chan, stdin, stdout = exec_command(ssh_client, command)
     stdin.close()
 
     for line in stdout:
         print(line, end='')
 
     res = chan.recv_exit_status()
 
     if res:
         raise Exception('non-0 exit code updating working directory; %d' % res)
 
 
 def synchronize_hg(
     source_path: pathlib.Path, ec2_instance, revision: str = None
 ):
     """Synchronize a local Mercurial source path to remote EC2 instance."""
 
     with tempfile.TemporaryDirectory() as temp_dir:
         temp_dir = pathlib.Path(temp_dir)
 
         ssh_dir = temp_dir / '.ssh'
         ssh_dir.mkdir()
         ssh_dir.chmod(0o0700)
 
         public_ip = ec2_instance.public_ip_address
 
         ssh_config = ssh_dir / 'config'
 
         with ssh_config.open('w', encoding='utf-8') as fh:
             fh.write('Host %s\n' % public_ip)
             fh.write('  User hg\n')
             fh.write('  StrictHostKeyChecking no\n')
             fh.write('  UserKnownHostsFile %s\n' % (ssh_dir / 'known_hosts'))
             fh.write('  IdentityFile %s\n' % ec2_instance.ssh_private_key_path)
 
         if not (source_path / '.hg').is_dir():
             raise Exception(
                 '%s is not a Mercurial repository; synchronization '
                 'not yet supported' % source_path
             )
 
         env = dict(os.environ)
         env['HGPLAIN'] = '1'
         env['HGENCODING'] = 'utf-8'
 
         hg_bin = source_path / 'hg'
 
         res = subprocess.run(
             ['python2.7', str(hg_bin), 'log', '-r', revision, '-T', '{node}'],
             cwd=str(source_path),
             env=env,
             check=True,
             capture_output=True,
         )
 
         full_revision = res.stdout.decode('ascii')
 
         args = [
             'python2.7',
             str(hg_bin),
             '--config',
             'ui.ssh=ssh -F %s' % ssh_config,
             '--config',
             'ui.remotecmd=/hgdev/venv-bootstrap/bin/hg',
             # Also ensure .hgtags changes are present so auto version
             # calculation works.
             'push',
             '-f',
             '-r',
             full_revision,
             '-r',
             'file(.hgtags)',
             'ssh://%s//hgwork/src' % public_ip,
         ]
 
         res = subprocess.run(args, cwd=str(source_path), env=env)
 
         # Allow 1 (no-op) to not trigger error.
         if res.returncode not in (0, 1):
             res.check_returncode()
 
         # TODO support synchronizing dirty working directory.
 
         sftp = ec2_instance.ssh_client.open_sftp()
 
         with sftp.open('/hgdev/hgup', 'wb') as fh:
             fh.write(HG_UPDATE_CLEAN)
             fh.chmod(0o0700)
 
         chan, stdin, stdout = exec_command(
             ec2_instance.ssh_client, '/hgdev/hgup %s' % full_revision
         )
         stdin.close()
 
         for line in stdout:
             print(line, end='')
 
         res = chan.recv_exit_status()
 
         if res:
             raise Exception(
                 'non-0 exit code updating working directory; %d' % res
             )
 
 
 def run_tests(ssh_client, python_version, test_flags=None):
     """Run tests on a remote Linux machine via an SSH client."""
     test_flags = test_flags or []
 
     print('running tests')
 
     if python_version == 'system2':
         python = '/usr/bin/python2'
     elif python_version == 'system3':
         python = '/usr/bin/python3'
     elif python_version.startswith('pypy'):
         python = '/hgdev/pyenv/shims/%s' % python_version
     else:
         python = '/hgdev/pyenv/shims/python%s' % python_version
 
     test_flags = ' '.join(shlex.quote(a) for a in test_flags)
 
     command = (
         '/bin/sh -c "export TMPDIR=/hgwork/tmp; '
         'cd /hgwork/src/tests && %s run-tests.py %s"' % (python, test_flags)
     )
 
     chan, stdin, stdout = exec_command(ssh_client, command)
 
     stdin.close()
 
     for line in stdout:
         print(line, end='')
 
     return chan.recv_exit_status()

contrib/install-windows-dependencies.ps1

@@ -1,200 +1,220 b''
 # 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/2.7.18/python-2.7.18.amd64.msi"
 $PYTHON27_x64_SHA256 = "b74a3afa1e0bf2a6fc566a7b70d15c9bfabba3756fb077797d16fffa27800c05"
 $PYTHON27_X86_URL = "https://www.python.org/ftp/python/2.7.18/python-2.7.18.msi"
 $PYTHON27_X86_SHA256 = "d901802e90026e9bad76b8a81f8dd7e43c7d7e8269d9281c9e9df7a9c40480a9"
 
 $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/3.7.7/python-3.7.7.exe"
 $PYTHON37_x86_SHA256 = "27fbffcd342d5055acc64050db4c35d0025661521e642b59c381dcba2e162c6a"
 $PYTHON37_X64_URL = "https://www.python.org/ftp/python/3.7.7/python-3.7.7-amd64.exe"
 $PYTHON37_x64_SHA256 = "1a0368663ceff999d865de955992b6ea3cb0c8cb15a1a296a8eb7df19cc59e69"
 
 $PYTHON38_x86_URL = "https://www.python.org/ftp/python/3.8.2/python-3.8.2.exe"
 $PYTHON38_x86_SHA256 = "03ac5754a69c9c11c08d1f4d694c14625a4d27348ad4dd2d1253e2547819db2c"
 $PYTHON38_x64_URL = "https://www.python.org/ftp/python/3.8.2/python-3.8.2-amd64.exe"
 $PYTHON38_x64_SHA256 = "8e400e3f32cdcb746e62e0db4d3ae4cba1f927141ebc4d0d5a4006b0daee8921"
 
 # 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"
 
+$RUSTUP_INIT_URL = "https://static.rust-lang.org/rustup/archive/1.21.1/x86_64-pc-windows-gnu/rustup-init.exe"
+$RUSTUP_INIT_SHA256 = "d17df34ba974b9b19cf5c75883a95475aa22ddc364591d75d174090d55711c72"
+
 # 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-Rust($prefix) {
+    Write-Output "installing Rust"
+    $Env:RUSTUP_HOME = "${prefix}\rustup"
+    $Env:CARGO_HOME = "${prefix}\cargo"
+
+    Invoke-Process "${prefix}\assets\rustup-init.exe" "-y --default-host x86_64-pc-windows-msvc"
+    Invoke-Process "${prefix}\cargo\bin\rustup.exe" "target add i686-pc-windows-msvc"
+    Invoke-Process "${prefix}\cargo\bin\rustup.exe" "install 1.42.0"
+    Invoke-Process "${prefix}\cargo\bin\rustup.exe" "component add clippy"
+
+    # Install PyOxidizer for packaging.
+    Invoke-Process "${prefix}\cargo\bin\cargo.exe" "install --version 0.7.0 pyoxidizer"
+}
+
 function Install-Dependencies($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
+    Secure-Download $RUSTUP_INIT_URL ${prefix}\assets\rustup-init.exe $RUSTUP_INIT_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"
 
+    Install-Rust ${prefix}
+
     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