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# Copyright (C) 2014-2016 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-2 =*=
import requests
import hashlib
import json
import os
import shutil
from subprocess import call
from ybd import repos, config, utils
from ybd.repos import get_tree
from ybd.utils import log
import tempfile
import yaml
import re
def cache_key(dn):
return dn['cache']
def cache(dn):
if get_cache(dn):
log(dn, "Bah! I could have cached", cache_key(dn))
return
tempfile.tempdir = config.config['tmp']
tmpdir = tempfile.mkdtemp()
cachefile = os.path.join(tmpdir, cache_key(dn))
if dn.get('kind') == "system":
utils.hardlink_all_files(dn['install'], dn['sandbox'])
shutil.rmtree(dn['checkout'])
utils.set_mtime_recursively(dn['install'])
utils.make_deterministic_tar_archive(cachefile, dn['install'])
shutil.move('%s.tar' % cachefile, cachefile)
else:
utils.set_mtime_recursively(dn['install'])
utils.make_deterministic_gztar_archive(cachefile, dn['install'])
shutil.move('%s.tar.gz' % cachefile, cachefile)
unpack(dn, cachefile)
config.config['counter'].increment()
if config.config.get('kbas-password', 'insecure') != 'insecure' and \
config.config.get('kbas-url') is not None:
if dn.get('kind', 'chunk') in \
config.config.get('kbas-upload', 'chunk'):
with utils.timer(dn, 'upload'):
upload(dn)
def update_manifest(dn, manifest):
with open(manifest, "a") as m:
if manifest.endswith('text'):
format = '%s %s %s %s %s %s\n'
m.write(format % (dn['name'], dn['cache'],
repos.gitmachine.normalize_repo_url(
dn.get('repo', 'None')),
dn.get('ref', 'None'),
dn.get('unpetrify-ref', 'None'),
md5(get_cache(dn))))
m.flush()
return
text = {'name': dn['name'],
'summary': {'artifact': dn['cache'],
'repo': repos.gitmachine.normalize_repo_url(
dn.get('repo', None)),
'sha': dn.get('ref', None),
'ref': dn.get('unpetrify-ref', None),
'md5': md5(get_cache(dn))}}
m.write(yaml.dump(text, default_flow_style=True))
m.flush()
def unpack(dn, tmpfile):
if dn.get('kind') != 'system':
unpackdir = tmpfile + '.unpacked'
os.makedirs(unpackdir)
if call(['tar', 'xf', tmpfile, '--directory', unpackdir]):
log(dn, 'Problem unpacking', tmpfile, exit=True)
else:
with open(os.devnull, "w") as fnull:
if call(['tar', 'tvf', tmpfile], stdout=fnull, stderr=fnull):
log(dn, 'Problem with tarfile', tmpfile, exit=True)
try:
path = os.path.join(config.config['artifacts'], cache_key(dn))
shutil.move(os.path.dirname(tmpfile), path)
if not os.path.isdir(path):
log(dn, 'Problem creating artifact', path, exit=True)
size = os.path.getsize(get_cache(dn))
size = re.sub("(\d)(?=(\d{3})+(?!\d))", r"\1,", "%d" % size)
checksum = md5(get_cache(dn))
log(dn, 'Cached %s bytes %s as' % (size, checksum), cache_key(dn))
return path
except:
log(dn, 'Bah! I raced on', cache_key(dn))
shutil.rmtree(os.path.dirname(tmpfile))
return False
def upload(dn):
cachefile = get_cache(dn)
url = config.config['kbas-url'] + 'upload'
params = {"filename": dn['cache'],
"password": config.config['kbas-password'],
"checksum": md5(cachefile)}
with open(cachefile, 'rb') as f:
try:
response = requests.post(url=url, data=params, files={"file": f})
if response.status_code == 201:
log(dn, 'Uploaded %s to' % dn['cache'], url)
return
if response.status_code == 777:
log(dn, 'Reproduced %s at' % md5(cachefile), dn['cache'])
config.config['reproduced'].append(
[md5(cachefile), dn['cache']])
return
if response.status_code == 405:
# server has different md5 for this artifact
if dn['kind'] == 'stratum' and config.config['reproduce']:
log('BIT-FOR-BIT',
'WARNING: reproduction failed for', dn['cache'])
log(dn, 'Artifact server already has', dn['cache'])
return
log(dn, 'Artifact server problem:', response.status_code)
except:
pass
log(dn, 'Failed to upload', dn['cache'])
def get_cache(dn):
''' Check if a cached artifact exists for the hashed version of d. '''
if cache_key(dn) is False:
return False
cachedir = os.path.join(config.config['artifacts'], cache_key(dn))
if os.path.isdir(cachedir):
call(['touch', cachedir])
artifact = os.path.join(cachedir, cache_key(dn))
unpackdir = artifact + '.unpacked'
if not os.path.isdir(unpackdir) and dn.get('kind') != 'system':
tempfile.tempdir = config.config['tmp']
tmpdir = tempfile.mkdtemp()
if call(['tar', 'xf', artifact, '--directory', tmpdir]):
log(dn, 'Problem unpacking', artifact)
return False
try:
shutil.move(tmpdir, unpackdir)
except:
# corner case... if we are here ybd is multi-instance, this
# artifact was uploaded from somewhere, and more than one
# instance is attempting to unpack. another got there first
pass
return artifact
return False
def get_remote(dn):
''' If a remote cached artifact exists for d, retrieve it '''
if config.config.get('last-retry-component') == dn or dn.get('tried'):
return False
dn['tried'] = True # let's not keep asking for this artifact
if dn.get('kind', 'chunk') not in \
config.config.get('kbas-upload', 'chunk'):
return False
try:
log(dn, 'Try downloading', cache_key(dn))
url = config.config['kbas-url'] + 'get/' + cache_key(dn)
response = requests.get(url=url, stream=True)
except:
config.config.pop('kbas-url')
log(dn, 'WARNING: remote artifact server is not working')
return False
if response.status_code == 200:
try:
tempfile.tempdir = config.config['tmp']
tmpdir = tempfile.mkdtemp()
cachefile = os.path.join(tmpdir, cache_key(dn))
with open(cachefile, 'wb') as f:
f.write(response.content)
return unpack(dn, cachefile)
except:
log(dn, 'WARNING: failed downloading', cache_key(dn))
return False
def cull(artifact_dir):
tempfile.tempdir = config.config['tmp']
deleted = 0
def clear(deleted, artifact_dir):
artifacts = utils.sorted_ls(artifact_dir)
for artifact in artifacts:
stat = os.statvfs(artifact_dir)
free = stat.f_frsize * stat.f_bavail / 1000000000
if free >= config.config.get('min-gigabytes', 10):
log('SETUP', '%sGB is enough free space' % free)
if deleted > 0:
log('SETUP', 'Culled %s items in' % deleted, artifact_dir)
return True
path = os.path.join(artifact_dir, artifact)
if os.path.exists(os.path.join(path, artifact + '.unpacked')):
path = os.path.join(path, artifact + '.unpacked')
if os.path.exists(path) and artifact not in config.config['keys']:
tmpdir = tempfile.mkdtemp()
shutil.move(path, os.path.join(tmpdir, 'to-delete'))
app.remove_dir(tmpdir)
deleted += 1
return False
# cull unpacked dirs first
if clear(deleted, artifact_dir):
return
# cull artifacts
if clear(deleted, artifact_dir):
return
stat = os.statvfs(artifact_dir)
free = stat.f_frsize * stat.f_bavail / 1000000000
if free < config.config.get('min-gigabytes', 10):
log('SETUP', '%sGB is less than min-gigabytes:' % free,
config.config.get('min-gigabytes', 10), exit=True)
def check(artifact):
try:
artifact = os.path.join(config.config['artifact-dir'], artifact,
artifact)
checkfile = artifact + '.md5'
if not os.path.exists(checkfile):
checksum = md5(artifact)
with open(checkfile, "w") as f:
f.write(checksum)
return(open(checkfile).read())
except:
return('================================')
def md5(filename):
# From http://stackoverflow.com/questions/3431825
# answer by http://stackoverflow.com/users/370483/quantumsoup
hash = hashlib.md5()
try:
with open(filename, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash.update(chunk)
return hash.hexdigest()
except:
return None
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