#!/usr/bin/env python3

import os
import pathlib
import requests
import stat
import sys
import subprocess
import time
import hashlib
import yaml
from clint.textui import progress
from optparse import OptionParser


if not os.path.exists('makebuildserver') and not os.path.exists('buildserver'):
    print('This must be run as ./makebuildserver in fdroidserver.git!')
    sys.exit(1)


def vagrant(params, cwd=None, printout=False):
    """Run vagrant.

    :param: list of parameters to pass to vagrant
    :cwd: directory to run in, or None for current directory
    :printout: True to print output in realtime, False to just
               return it
    :returns: (ret, out) where ret is the return code, and out
               is the stdout (and stderr) from vagrant
    """
    p = subprocess.Popen(['vagrant'] + params, cwd=cwd,
                         stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
                         universal_newlines=True)
    out = ''
    if printout:
        while True:
            line = p.stdout.readline()
            if len(line) == 0:
                break
            print(line.rstrip())
            out += line
        p.wait()
    else:
        out = p.communicate()[0]
    return (p.returncode, out)


boxfile = 'buildserver.box'
serverdir = 'buildserver'

parser = OptionParser()
parser.add_option("-v", "--verbose", action="store_true", default=False,
                  help="Spew out even more information than normal")
parser.add_option("-c", "--clean", action="store_true", default=False,
                  help="Build from scratch, rather than attempting to update the existing server")
options, args = parser.parse_args()

# set up default config
cachedir = os.path.join(os.getenv('HOME'), '.cache', 'fdroidserver')
config = {
    'basebox': 'jessie64',
    'baseboxurl': [
        pathlib.Path(os.path.join(cachedir, 'jessie64.box')).as_uri(),
        'https://f-droid.org/jessie64.box',
    ],
    'debian_mirror': 'http://http.debian.net/debian/',
    'apt_package_cache': False,
    'boot_timeout': 600,
    'cachedir': cachedir,
    'cpus': 1,
    'memory': 1024,
    'hwvirtex': 'off',
    'vm_provider': 'virtualbox',
}

if os.path.isfile('/usr/bin/systemd-detect-virt'):
    try:
        virt = subprocess.check_output('/usr/bin/systemd-detect-virt').strip().decode('utf-8')
    except subprocess.CalledProcessError as e:
        virt = 'none'
    if virt == 'qemu' or virt == 'kvm' or virt == 'bochs':
        print('Running in a VM guest, defaulting to QEMU/KVM via libvirt')
        config['vm_provider'] = 'libvirt'
    elif virt != 'none':
        print('Running in an unsupported VM guest (' + virt + ')!')

# load config file, if present
if os.path.exists('makebuildserver.config.py'):
    exec(compile(open('makebuildserver.config.py').read(), 'makebuildserver.config.py', 'exec'), config)
elif os.path.exists('makebs.config.py'):
    # this is the old name for the config file
    exec(compile(open('makebs.config.py').read(), 'makebs.config.py', 'exec'), config)
if '__builtins__' in config:
    del(config['__builtins__'])  # added by compile/exec

if os.path.exists(boxfile):
    os.remove(boxfile)

if options.clean:
    vagrant(['destroy', '-f'], cwd=serverdir, printout=options.verbose)
    if config['vm_provider'] == 'libvirt':
        subprocess.call(['virsh', 'undefine', 'buildserver_default'])
        subprocess.call(['virsh', 'vol-delete', '/var/lib/libvirt/images/buildserver_default.img'])

# Update cached files.
cachedir = config['cachedir']
if not os.path.exists(cachedir):
    os.makedirs(cachedir, 0o755)

if config['vm_provider'] == 'libvirt':
    tmp = cachedir
    while tmp != '/':
        mode = os.stat(tmp).st_mode
        if not (stat.S_IXUSR & mode and stat.S_IXGRP & mode and stat.S_IXOTH & mode):
            print('ERROR:', tmp, 'will not be accessible to the VM!  To fix, run:')
            print('  chmod a+X', tmp)
            sys.exit(1)
        tmp = os.path.dirname(tmp)

if config['apt_package_cache']:
    config['aptcachedir'] = cachedir + '/apt/archives'

cachefiles = [
    ('https://dl.google.com/android/repository/tools_r25.2.3-linux.zip',
     '1b35bcb94e9a686dff6460c8bca903aa0281c6696001067f34ec00093145b560'),
    ('https://dl.google.com/android/repository/android_m2repository_r47.zip',
     'a3f91808dce50c1717737de90c18479ed3a78b147e06985247d138e7ab5123d0'),
    ('https://dl.google.com/android/repository/android-1.5_r04-linux.zip',
     '85b6c8f9797e56aa415d3a282428bb640c96b0acb17c11d41621bb2a5302fe64'),
    ('https://dl.google.com/android/repository/android-1.6_r03-linux.zip',
     'a8c4e3b32269c6b04c2adeabd112fce42f292dab1a40ef3b08ea7d4212be0df4'),
    ('https://dl.google.com/android/repository/android-2.0_r01-linux.zip',
     'e70e2151b49613f23f40828c771ab85e241eed361cab037c6312df77f2612f0a'),
    ('https://dl.google.com/android/repository/android-2.0.1_r01-linux.zip',
     'f47b46177b17f6368461f85bc2a27d0d2c437929f588ea27105712bc3185f664'),
    ('https://dl.google.com/android/repository/android-2.1_r03.zip',
     'b9cc140a9b879586181b22cfc7d4aa18b979251e16e9b17771c5d0acb71ba940'),
    ('https://dl.google.com/android/repository/android-2.2_r03.zip',
     '7c9ea1bd7cb225504bd085d7c93ae27d52bd88d29b621d28108f82fef68177c0'),
    ('https://dl.google.com/android/repository/android-2.3.1_r02.zip',
     'b2ab4896d0a4857e4f688f69eb08b0e1a8074709d4445a92a83ece7ec7cd198c'),
    ('https://dl.google.com/android/repository/android-2.3.3_r02.zip',
     '54bdb0f1ca06ba5747061ddeea20f431af72c448334fd4d3d7f84ea2ccd29fea'),
    ('https://dl.google.com/android/repository/android-3.0_r02.zip',
     '1cacae7b6e1b5a5d73c06f5d29d2ea92d16674df8fd5507681290e77d1647a1c'),
    ('https://dl.google.com/android/repository/android-3.1_r03.zip',
     '7570c86a86488a146aa2141a65a24d81800959c1907ff4f1d2c13bbafab230c5'),
    ('https://dl.google.com/android/repository/android-3.2_r01.zip',
     'ff6b26ad34d7060a72ba504b0314cef8ba3138005561705adec5ad470a073d9b'),
    ('https://dl.google.com/android/repository/android-14_r04.zip',
     'da1af15c77ba41d062eb6d0ef5921cc424ab6167587033b830609d65f04802b6'),
    ('https://dl.google.com/android/repository/android-15_r05.zip',
     '5bc1f93aae86b4336ffc4cae9eb8ec41a9a8fd677582dd86a9629798f019bed9'),
    ('https://dl.google.com/android/repository/android-16_r05.zip',
     'fd7f269a423d1f1d079eabf9f918ceab49108702a1c6bb2589d57c23393503d3'),
    ('https://dl.google.com/android/repository/android-17_r03.zip',
     'b66e73fb2639f8c916fde4369aa29012a5c531e156dbb205fe3788fe998fbbe8'),
    ('https://dl.google.com/android/repository/android-18_r03.zip',
     '166ae9cf299747a5faa8f04168f0ee47cd7466a975d8b44acaaa62a43e767568'),
    ('https://dl.google.com/android/repository/android-19_r04.zip',
     '5efc3a3a682c1d49128daddb6716c433edf16e63349f32959b6207524ac04039'),
    ('https://dl.google.com/android/repository/android-20_r02.zip',
     'ef08c453e16ab6e656cf5d9413ef61cb8c650607d33b24ee4ce08dafdfe965a7'),
    ('https://dl.google.com/android/repository/android-21_r02.zip',
     'a76cd7ad3080ac6ce9f037cb935b399a1bad396c0605d4ff42f693695f1dcefe'),
    ('https://dl.google.com/android/repository/android-22_r02.zip',
     '45eb581bbe53c9256f34c26b2cea919543c0079140897ac721cf88c0b9f6789e'),
    ('https://dl.google.com/android/repository/platform-23_r03.zip',
     '4b4bcddead3319708275c54c76294707bfaa953d767e34f1a5b599f3edd0076c'),
    ('https://dl.google.com/android/repository/platform-24_r02.zip',
     'f268f5945c6ece7ea95c1c252067280854d2a20da924e22ae4720287df8bdbc9'),
    ('https://dl.google.com/android/repository/platform-25_r01.zip',
     'da519dc3e07b8cb879265c94f798262c1f90791dfaa8b745d34883891378438e'),
    ('https://dl.google.com/android/repository/build-tools_r17-linux.zip',
     '4c8444972343a19045236f6924bd7f12046287c70dace96ab88b2159c8ec0e74'),
    ('https://dl.google.com/android/repository/build-tools_r18.0.1-linux.zip',
     'a9b7b1bdfd864780fdd03fa1683f3fe712a4276cf200646833808cb9159bafc0'),
    ('https://dl.google.com/android/repository/build-tools_r18.1-linux.zip',
     '0753606738f31cc346426db1d46b7d021bc1bdaff63085f9ee9d278ee054d3c9'),
    ('https://dl.google.com/android/repository/build-tools_r18.1.1-linux.zip',
     '7e4ed326b53078f4f23276ddab52c400011f7593dfbb6508c0a6671954dba8b0'),
    ('https://dl.google.com/android/repository/build-tools_r19-linux.zip',
     '9442e1c5212ed594e344a231fa93e7a017a5ef8cc661117011f1d3142eca7acc'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.1-linux.zip',
     'b068edaff05c3253a63e9c8f0e1786429799b7e4b01514a847a8b291beb9232e'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.2-linux.zip',
     '06124fad0d4bde21191240d61df2059a8546c085064a9a57d024c36fa2c9bebb'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.3-linux.zip',
     'bc9b3db0de4a3e233a170274293359051a758f1e3f0d0d852ff4ad6d90d0a794'),
    ('https://dl.google.com/android/repository/build-tools_r19.1-linux.zip',
     '3833b409f78c002a83244e220be380ea6fa44d604e0d47de4b7e5daefe7cd3f4'),
    ('https://dl.google.com/android/repository/build-tools_r20-linux.zip',
     '296e09d62095d80e6eaa06a64cfa4c6f9f317c2d67ad8da6514523ec66f5c871'),
    ('https://dl.google.com/android/repository/build-tools_r21-linux.zip',
     '12b818f38fe1b68091b94545988317438efbf41eb61fd36b72cd79f536044065'),
    ('https://dl.google.com/android/repository/build-tools_r21.0.1-linux.zip',
     'a8922e80d3dd0cf6df14b29a7862448fa111b48086c639168d4b18c92431f559'),
    ('https://dl.google.com/android/repository/build-tools_r21.0.2-linux.zip',
     '859b17a6b65d063dfd86c163489b736b12bdeecd9173fdddb3e9f32e0fe584b7'),
    ('https://dl.google.com/android/repository/build-tools_r21.1-linux.zip',
     '022a85b92360272379b2f04b8a4d727e754dbe7eb8ab5a9568190e33e480d8f1'),
    ('https://dl.google.com/android/repository/build-tools_r21.1.1-linux.zip',
     '29b612484de6b5cde0df6de655e413f7611b0557b440538397afa69b557e2f08'),
    ('https://dl.google.com/android/repository/build-tools_r21.1.2-linux.zip',
     '3f88efc2d5316fb73f547f35b472610eed5e6f3f56762750ddad1c7d1d81660d'),
    ('https://dl.google.com/android/repository/build-tools_r22-linux.zip',
     '061c021243f04c80c19568a6e3a027c00d8e269c9311d7bf07fced60fbde7bd5'),
    ('https://dl.google.com/android/repository/build-tools_r22.0.1-linux.zip',
     '91e5524bf227aad1135ddd10905518ac49f74797d33d48920dcf8364b9fde214'),
    ('https://dl.google.com/android/repository/build-tools_r23-linux.zip',
     '56bf4fc6c43638c55fef4a0937bad38281945725459841879b436c6922df786c'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.1-linux.zip',
     'e56b3ef7b760ad06a7cee9b2d52ba7f43133dcecedfa5357f8845b3a80aeeecf'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.2-linux.zip',
     '82754f551a6e36eaf516fbdd00c95ff0ccd19f81d1e134125b6ac4916f7ed9b6'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.3-linux.zip',
     'd961663d4a9e128841751c0156548a347c882c081c83942e53788d8949bf34e1'),
    ('https://dl.google.com/android/repository/build-tools_r24-linux.zip',
     'b4871f357224c5f660fd2bbee04d8c7d1c187eeddfd9702cc84503529e3b3724'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.1-linux.zip',
     'a38ac637db357a31e33e38248399cb0edcc15040dca041370da38b6daf50c84d'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.2-linux.zip',
     '924e29b8a189afbd119d44eae450fc0c9f197ed6f835df223931e45007987d95'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.3-linux.zip',
     'f2c02eb1d7e41ce314b5dac50440e7595380c4dd45b41ea1d7b0f86e49516927'),
    ('https://dl.google.com/android/repository/build-tools_r25-linux.zip',
     '74eb6931fd7a56859bd8e35d8d73ca8fe7ba6bfd4b7ffe560fe58b7354f2e3aa'),
    ('https://dl.google.com/android/repository/build-tools_r25.0.1-linux.zip',
     '671b4e00f5b986c7355507c7024b725a4b4cadf11ca61fa5b1334ec6ea57d94f'),
    ('https://dl.google.com/android/repository/build-tools_r25.0.2-linux.zip',
     '1d7ac9b6def16fb0254ec23c135c02dd9f6908073352a20315a017e4b2a904b0'),
    # the binaries that Google uses are here:
    # https://android.googlesource.com/platform/tools/external/gradle/+/studio-1.5/
    ('https://services.gradle.org/distributions/gradle-1.4-bin.zip',
     'cd99e85fbcd0ae8b99e81c9992a2f10cceb7b5f009c3720ef3a0078f4f92e94e'),
    ('https://services.gradle.org/distributions/gradle-1.6-bin.zip',
     'de3e89d2113923dcc2e0def62d69be0947ceac910abd38b75ec333230183fac4'),
    ('https://services.gradle.org/distributions/gradle-1.7-bin.zip',
     '360c97d51621b5a1ecf66748c718594e5f790ae4fbc1499543e0c006033c9d30'),
    ('https://services.gradle.org/distributions/gradle-1.8-bin.zip',
     'a342bbfa15fd18e2482287da4959588f45a41b60910970a16e6d97959aea5703'),
    ('https://services.gradle.org/distributions/gradle-1.9-bin.zip',
     '097ddc2bcbc9da2bb08cbf6bf8079585e35ad088bafd42e8716bc96405db98e9'),
    ('https://services.gradle.org/distributions/gradle-1.10-bin.zip',
     '6e6db4fc595f27ceda059d23693b6f6848583950606112b37dfd0e97a0a0a4fe'),
    ('https://services.gradle.org/distributions/gradle-1.11-bin.zip',
     '07e235df824964f0e19e73ea2327ce345c44bcd06d44a0123d29ab287fc34091'),
    ('https://services.gradle.org/distributions/gradle-1.12-bin.zip',
     '8734b13a401f4311ee418173ed6ca8662d2b0a535be8ff2a43ecb1c13cd406ea'),
    ('https://services.gradle.org/distributions/gradle-2.1-bin.zip',
     '3eee4f9ea2ab0221b89f8e4747a96d4554d00ae46d8d633f11cfda60988bf878'),
    ('https://services.gradle.org/distributions/gradle-2.2-bin.zip',
     '91e5655fe11ef414449f218c4fa2985b3a49b7903c57556da109c84fa26e1dfb'),
    ('https://services.gradle.org/distributions/gradle-2.2.1-bin.zip',
     '420aa50738299327b611c10b8304b749e8d3a579407ee9e755b15921d95ff418'),
    ('https://services.gradle.org/distributions/gradle-2.3-bin.zip',
     '010dd9f31849abc3d5644e282943b1c1c355f8e2635c5789833979ce590a3774'),
    ('https://services.gradle.org/distributions/gradle-2.4-bin.zip',
     'c4eaecc621a81f567ded1aede4a5ddb281cc02a03a6a87c4f5502add8fc2f16f'),
    ('https://services.gradle.org/distributions/gradle-2.5-bin.zip',
     '3f953e0cb14bb3f9ebbe11946e84071547bf5dfd575d90cfe9cc4e788da38555'),
    ('https://services.gradle.org/distributions/gradle-2.6-bin.zip',
     '18a98c560af231dfa0d3f8e0802c20103ae986f12428bb0a6f5396e8f14e9c83'),
    ('https://services.gradle.org/distributions/gradle-2.7-bin.zip',
     'cde43b90945b5304c43ee36e58aab4cc6fb3a3d5f9bd9449bb1709a68371cb06'),
    ('https://services.gradle.org/distributions/gradle-2.8-bin.zip',
     'a88db9c2f104defdaa8011c58cf6cda6c114298ae3695ecfb8beb30da3a903cb'),
    ('https://services.gradle.org/distributions/gradle-2.9-bin.zip',
     'c9159ec4362284c0a38d73237e224deae6139cbde0db4f0f44e1c7691dd3de2f'),
    ('https://services.gradle.org/distributions/gradle-2.10-bin.zip',
     '66406247f745fc6f05ab382d3f8d3e120c339f34ef54b86f6dc5f6efc18fbb13'),
    ('https://services.gradle.org/distributions/gradle-2.11-bin.zip',
     '8d7437082356c9fd6309a4479c8db307673965546daea445c6c72759cd6b1ed6'),
    ('https://services.gradle.org/distributions/gradle-2.12-bin.zip',
     'e77064981906cd0476ff1e0de3e6fef747bd18e140960f1915cca8ff6c33ab5c'),
    ('https://services.gradle.org/distributions/gradle-2.13-bin.zip',
     '0f665ec6a5a67865faf7ba0d825afb19c26705ea0597cec80dd191b0f2cbb664'),
    ('https://services.gradle.org/distributions/gradle-2.14-bin.zip',
     '993b4f33b652c689e9721917d8e021cab6bbd3eae81b39ab2fd46fdb19a928d5'),
    ('https://services.gradle.org/distributions/gradle-2.14.1-bin.zip',
     'cfc61eda71f2d12a572822644ce13d2919407595c2aec3e3566d2aab6f97ef39'),
    ('https://services.gradle.org/distributions/gradle-3.0-bin.zip',
     '39c906941a474444afbddc38144ed44166825acb0a57b0551dddb04bbf157f80'),
    ('https://services.gradle.org/distributions/gradle-3.1-bin.zip',
     'c7de3442432253525902f7e8d7eac8b5fd6ce1623f96d76916af6d0e383010fc'),
    ('https://services.gradle.org/distributions/gradle-3.2-bin.zip',
     '5321b36837226dc0377047a328f12010f42c7bf88ee4a3b1cee0c11040082935'),
    ('https://services.gradle.org/distributions/gradle-3.2.1-bin.zip',
     '9843a3654d3e57dce54db06d05f18b664b95c22bf90c6becccb61fc63ce60689'),
    ('https://services.gradle.org/distributions/gradle-3.3-bin.zip',
     'c58650c278d8cf0696cab65108ae3c8d95eea9c1938e0eb8b997095d5ca9a292'),
    ('https://services.gradle.org/distributions/gradle-3.4-bin.zip',
     '72d0cd4dcdd5e3be165eb7cd7bbd25cf8968baf400323d9ab1bba622c3f72205'),
    ('https://services.gradle.org/distributions/gradle-3.4.1-bin.zip',
     'db1db193d479cc1202be843f17e4526660cfb0b21b57d62f3a87f88c878af9b2'),
    ('https://services.gradle.org/distributions/gradle-3.5-bin.zip',
     '0b7450798c190ff76b9f9a3d02e18b33d94553f708ebc08ebe09bdf99111d110'),
    ('https://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin',
     '102d6723f67ff1384330d12c45854315d6452d6510286f4e5891e00a5a8f1d5a'),
    ('https://dl.google.com/android/ndk/android-ndk-r9b-linux-x86_64.tar.bz2',
     '8956e9efeea95f49425ded8bb697013b66e162b064b0f66b5c75628f76e0f532'),
    ('https://dl.google.com/android/ndk/android-ndk-r9b-linux-x86_64-legacy-toolchains.tar.bz2',
     'de93a394f7c8f3436db44568648f87738a8d09801a52f459dcad3fc047e045a1'),
    ('https://dl.google.com/android/repository/android-ndk-r11c-linux-x86_64.zip',
     'ba85dbe4d370e4de567222f73a3e034d85fc3011b3cbd90697f3e8dcace3ad94'),
    ('https://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip',
     'eafae2d614e5475a3bcfd7c5f201db5b963cc1290ee3e8ae791ff0c66757781e'),
    ('https://dl.google.com/android/repository/android-ndk-r13b-linux-x86_64.zip',
     '3524d7f8fca6dc0d8e7073a7ab7f76888780a22841a6641927123146c3ffd29c'),
    ('https://dl.google.com/android/repository/android-ndk-r14-linux-x86_64.zip',
     '3e622c2c9943964ea44cd56317d0769ed4c811bb4b40dc45b1f6965e4db9aa44'),
    ('https://download.qt.io/official_releases/qt/5.7/5.7.0/qt-opensource-linux-x64-android-5.7.0.run',
     'f7e55b7970e59bdaabb88cb7afc12e9061e933992bda2f076f52600358644586'),
]


def sha256_for_file(path):
    with open(path, 'rb') as f:
        s = hashlib.sha256()
        while True:
            data = f.read(4096)
            if not data:
                break
            s.update(data)
        return s.hexdigest()


for srcurl, shasum in cachefiles:
    filename = os.path.basename(srcurl)
    local_filename = os.path.join(cachedir, filename)

    if os.path.exists(local_filename):
        local_length = os.path.getsize(local_filename)
    else:
        local_length = -1

    resume_header = {}
    download = True

    try:
        r = requests.head(srcurl, allow_redirects=True, timeout=60)
        if r.status_code == 200:
            content_length = int(r.headers.get('content-length'))
        else:
            content_length = local_length  # skip the download
    except requests.exceptions.RequestException as e:
        content_length = local_length  # skip the download
        print(e)

    if local_length == content_length:
        download = False
    elif local_length > content_length:
        print('deleting corrupt file from cache: ' + local_filename)
        os.remove(local_filename)
        print("Downloading " + filename + " to cache")
    elif local_length > -1 and local_length < content_length:
        print("Resuming download of " + local_filename)
        resume_header = {'Range': 'bytes=%d-%d' % (local_length, content_length)}
    else:
        print("Downloading " + filename + " to cache")

    if download:
        r = requests.get(srcurl, headers=resume_header,
                         stream=True, verify=False, allow_redirects=True)
        content_length = int(r.headers.get('content-length'))
        with open(local_filename, 'ab') as f:
            for chunk in progress.bar(r.iter_content(chunk_size=65536),
                                      expected_size=(content_length / 65536) + 1):
                if chunk:  # filter out keep-alive new chunks
                    f.write(chunk)

    v = sha256_for_file(local_filename)
    if v == shasum:
        print("\t...shasum verified for " + local_filename)
    else:
        print("Invalid shasum of '" + v + "' detected for " + local_filename)
        os.remove(local_filename)
        sys.exit(1)

local_qt_filename = os.path.join(cachedir, 'qt-opensource-linux-x64-android-5.7.0.run')
print("Setting executable bit for " + local_qt_filename)
os.chmod(local_qt_filename, 0o755)

# use VirtualBox software virtualization if hardware is not available,
# like if this is being run in kvm or some other VM platform, like
# http://jenkins.debian.net, the values are 'on' or 'off'
if sys.platform.startswith('darwin'):
    # all < 10 year old Macs work, and OSX servers as VM host are very
    # rare, but this could also be auto-detected if someone codes it
    config['hwvirtex'] = 'on'
elif os.path.exists('/proc/cpuinfo'):
    with open('/proc/cpuinfo') as f:
        contents = f.read()
    if 'vmx' in contents or 'svm' in contents:
        config['hwvirtex'] = 'on'

# Check against the existing Vagrantfile.yaml, and if they differ, we
# need to create a new box:
vf = os.path.join(serverdir, 'Vagrantfile.yaml')
writevf = True
if os.path.exists(vf):
    print('Halting', serverdir)
    vagrant(['halt'], serverdir)
    with open(vf, 'r', encoding='utf-8') as f:
        oldconfig = yaml.load(f)
    if config != oldconfig:
        print("Server configuration has changed, rebuild from scratch is required")
        vagrant(['destroy', '-f'], serverdir)
    else:
        print("Re-provisioning existing server")
        writevf = False
else:
    print("No existing server - building from scratch")
if writevf:
    with open(vf, 'w', encoding='utf-8') as f:
        yaml.dump(config, f)

if config['vm_provider'] == 'libvirt':
    returncode, out = vagrant(['box', 'list'], serverdir, printout=options.verbose)
    found_basebox = False
    needs_mutate = False
    for line in out.splitlines():
        if line.startswith(config['basebox']):
            found_basebox = True
            if line.split('(')[1].split(',')[0] != 'libvirt':
                needs_mutate = True
            continue
    if not found_basebox:
        if isinstance(config['baseboxurl'], str):
            baseboxurl = config['baseboxurl']
        else:
            baseboxurl = config['baseboxurl'][0]
        print('Adding', config['basebox'], 'from', baseboxurl)
        vagrant(['box', 'add', '--name', config['basebox'], baseboxurl],
                serverdir, printout=options.verbose)
        needs_mutate = True
    if needs_mutate:
        print('Converting', config['basebox'], 'to libvirt format')
        vagrant(['mutate', config['basebox'], 'libvirt'],
                serverdir, printout=options.verbose)
        print('Removing virtualbox format copy of', config['basebox'])
        vagrant(['box', 'remove', '--provider', 'virtualbox', config['basebox']],
                serverdir, printout=options.verbose)

print("Configuring build server VM")
returncode, out = vagrant(['up', '--provision'], serverdir, printout=True)
with open(os.path.join(serverdir, 'up.log'), 'w') as log:
    log.write(out)
if returncode != 0:
    print("Failed to configure server")
    sys.exit(1)

print("Writing buildserver ID")
p = subprocess.Popen(['git', 'rev-parse', 'HEAD'], stdout=subprocess.PIPE,
                     universal_newlines=True)
buildserverid = p.communicate()[0].strip()
print("...ID is " + buildserverid)
subprocess.call(
    ['vagrant', 'ssh', '-c', 'sh -c "echo {0} >/home/vagrant/buildserverid"'
        .format(buildserverid)],
    cwd=serverdir)

print("Stopping build server VM")
vagrant(['halt'], serverdir)

print("Waiting for build server VM to be finished")
ready = False
while not ready:
    time.sleep(2)
    returncode, out = vagrant(['status'], serverdir)
    if returncode != 0:
        print("Error while checking status")
        sys.exit(1)
    for line in out.splitlines():
        if line.startswith("default"):
            if line.find("poweroff") != -1 or line.find("shutoff") != 1:
                ready = True
            else:
                print("Status: " + line)

print("Packaging")
vagrant(['package', '--output', os.path.join('..', boxfile)], serverdir,
        printout=options.verbose)
print("Adding box")
vagrant(['box', 'add', 'buildserver', boxfile, '-f'],
        printout=options.verbose)

os.remove(boxfile)
