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britney2-ubuntu/autopkgtest.py

670 lines
29 KiB

9 years ago
# -*- coding: utf-8 -*-
# Copyright (C) 2013 - 2015 Canonical Ltd.
# Authors:
# Colin Watson <cjwatson@ubuntu.com>
# Jean-Baptiste Lallement <jean-baptiste.lallement@canonical.com>
# Martin Pitt <martin.pitt@ubuntu.com>
# 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; either version 2 of the License, or
# (at your option) any later version.
# 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.
import os
import time
import json
import tarfile
import io
import re
import sys
import urllib.parse
from urllib.request import urlopen
import apt_pkg
import amqplib.client_0_8 as amqp
from consts import VERSION
def srchash(src):
'''archive hash prefix for source package'''
if src.startswith('lib'):
return src[:4]
else:
return src[0]
class AutoPackageTest(object):
"""autopkgtest integration
Look for autopkgtest jobs to run for each update that is otherwise a
valid candidate, and collect the results. If an update causes any
autopkgtest jobs to be run, then they must all pass before the update is
accepted.
"""
def __init__(self, britney, distribution, series, debug=False):
self.britney = britney
self.distribution = distribution
self.series = series
self.debug = debug
self.excludes = set()
self.test_state_dir = os.path.join(britney.options.unstable,
'autopkgtest')
# tests requested in this and previous runs
# trigger -> src -> [arch]
self.pending_tests = None
self.pending_tests_file = os.path.join(self.test_state_dir, 'pending.json')
if not os.path.isdir(self.test_state_dir):
os.mkdir(self.test_state_dir)
self.read_pending_tests()
# results map: trigger -> src -> arch -> [passed, version, run_id]
# - trigger is "source/version" of an unstable package that triggered
# this test run.
# - "passed" is a bool
# - "version" is the package version of "src" of that test
# - "run_id" is an opaque ID that identifies a particular test run for
# a given src/arch. It's usually a time stamp like "20150120_125959".
# This is also used for tracking the latest seen time stamp for
# requesting only newer results.
self.test_results = {}
if self.britney.options.adt_shared_results_cache:
self.results_cache_file = self.britney.options.adt_shared_results_cache
else:
self.results_cache_file = os.path.join(self.test_state_dir, 'results.cache')
self.swift_container = 'autopkgtest-' + self.series
if self.britney.options.adt_ppas:
self.swift_container += '-' + self.britney.options.adt_ppas[-1].replace('/', '-')
# read the cached results that we collected so far
if os.path.exists(self.results_cache_file):
with open(self.results_cache_file) as f:
self.test_results = json.load(f)
self.log_verbose('Read previous results from %s' % self.results_cache_file)
else:
self.log_verbose('%s does not exist, re-downloading all results '
'from swift' % self.results_cache_file)
self.setup_amqp()
def setup_amqp(self):
'''Initialize AMQP connection'''
self.amqp_channel = None
self.amqp_file = None
if self.britney.options.dry_run:
# in dry-run mode, don't issue any requests
return
amqp_url = self.britney.options.adt_amqp
if amqp_url.startswith('amqp://'):
# in production mode, connect to AMQP server
creds = urllib.parse.urlsplit(amqp_url, allow_fragments=False)
self.amqp_con = amqp.Connection(creds.hostname, userid=creds.username,
password=creds.password)
self.amqp_channel = self.amqp_con.channel()
self.log_verbose('Connected to AMQP server')
elif amqp_url.startswith('file://'):
# in testing mode, adt_amqp will be a file:// URL
self.amqp_file = amqp_url[7:]
else:
raise RuntimeError('Unknown ADT_AMQP schema %s' % amqp_url.split(':', 1)[0])
def log_verbose(self, msg):
if self.britney.options.verbose:
print('I: [%s] - %s' % (time.asctime(), msg))
def log_error(self, msg):
print('E: [%s] - %s' % (time.asctime(), msg))
@classmethod
def has_autodep8(kls, srcinfo, binaries):
'''Check if package is covered by autodep8
srcinfo is an item from self.britney.sources
binaries is self.britney.binaries['unstable'][arch][0]
'''
# autodep8?
for t in srcinfo.testsuite:
if t.startswith('autopkgtest-pkg'):
return True
# DKMS: some binary depends on "dkms"
for pkg_id in srcinfo.binaries:
try:
bininfo = binaries[pkg_id.package_name]
except KeyError:
continue
if 'dkms' in (bininfo.depends or ''):
return True
return False
def tests_for_source(self, src, ver, arch):
'''Iterate over all tests that should be run for given source and arch'''
sources_info = self.britney.sources['testing']
binaries_info = self.britney.binaries['testing'][arch][0]
reported_pkgs = set()
tests = []
# hack for vivid's gccgo-5 and xenial's gccgo-6; these build libgcc1
# too, so test some Go and some libgcc1 consumers
if src in ['gccgo-5', 'gccgo-6']:
for test in ['juju-mongodb', 'mongodb', 'libreoffice']:
try:
tests.append((test, self.britney.sources['testing'][test][VERSION]))
except KeyError:
# no package in that series? *shrug*, then not (mostly for testing)
pass
return tests
# gcc-N triggers tons of tests via libgcc1, but this is mostly in vain:
# gcc already tests itself during build, and it is being used from
# -proposed, so holding it back on a dozen unrelated test failures
# serves no purpose. Just check some key packages which actually use
# gcc during the test, and libreoffice as an example for a libgcc user.
if src.startswith('gcc-'):
if re.match('gcc-\d$', src):
for test in ['binutils', 'fglrx-installer', 'libreoffice', 'linux']:
try:
tests.append((test, self.britney.sources['testing'][test][VERSION]))
except KeyError:
# no package in that series? *shrug*, then not (mostly for testing)
pass
return tests
else:
# for other compilers such as gcc-snapshot etc. we don't need
# to trigger anything
return []
# for linux themselves we don't want to trigger tests -- these should
# all come from linux-meta*. A new kernel ABI without a corresponding
# -meta won't be installed and thus we can't sensibly run tests against
# it.
if src.startswith('linux') and src.replace('linux', 'linux-meta') in self.britney.sources['testing']:
return []
# we want to test the package itself, if it still has a test in unstable
srcinfo = self.britney.sources['unstable'][src]
if 'autopkgtest' in srcinfo.testsuite or self.has_autodep8(srcinfo, binaries_info):
reported_pkgs.add(src)
tests.append((src, ver))
extra_bins = []
# Hack: For new kernels trigger all DKMS packages by pretending that
# linux-meta* builds a "dkms" binary as well. With that we ensure that we
# don't regress DKMS drivers with new kernel versions.
if src.startswith('linux-meta'):
# does this have any image on this arch?
for pkg_id in srcinfo.binaries:
if pkg_id.architecture == arch and '-image' in pkg_id.package_name:
try:
extra_bins.append(binaries_info['dkms'].pkg_id)
except KeyError:
pass
# plus all direct reverse dependencies and test triggers of its
# binaries which have an autopkgtest
for binary in srcinfo.binaries + extra_bins:
rdeps = self.britney._inst_tester.reverse_dependencies_of(binary)
for rdep in rdeps:
try:
rdep_src = binaries_info[rdep.package_name].source
except KeyError:
self.log_verbose('%s on %s has no source (NBS?)' % (rdep.package_name, arch))
continue
# if rdep_src/unstable is known to be not built yet or
# uninstallable, try to run tests against testing; if that
# works, then the unstable src does not break the testing
# rdep_src and is fine
if rdep_src in self.excludes:
try:
rdep_src_info = self.britney.sources['testing'][rdep_src]
self.log_verbose('Reverse dependency %s of %s/%s is unbuilt or uninstallable, running test against testing version %s' %
(rdep_src, src, ver, rdep_src_info[VERSION]))
except KeyError:
self.log_verbose('Reverse dependency %s of %s/%s is unbuilt or uninstallable and not present in testing, ignoring' %
(rdep_src, src, ver))
continue
else:
rdep_src_info = sources_info[rdep_src]
if 'autopkgtest' in rdep_src_info.testsuite or self.has_autodep8(rdep_src_info, binaries_info):
if rdep_src not in reported_pkgs:
tests.append((rdep_src, rdep_src_info[VERSION]))
reported_pkgs.add(rdep_src)
for tdep_src in self.britney.testsuite_triggers.get(binary.package_name, set()):
if tdep_src not in reported_pkgs:
try:
tdep_src_info = sources_info[tdep_src]
except KeyError:
continue
if 'autopkgtest' in tdep_src_info.testsuite or self.has_autodep8(tdep_src_info, binaries_info):
tests.append((tdep_src, tdep_src_info[VERSION]))
reported_pkgs.add(tdep_src)
# Hardcode linux-meta → linux, lxc, glibc, systemd triggers until we get a more flexible
# implementation: https://bugs.debian.org/779559
if src.startswith('linux-meta'):
for pkg in ['lxc', 'lxd', 'glibc', src.replace('linux-meta', 'linux'), 'systemd']:
if pkg not in reported_pkgs:
# does this have any image on this arch?
for pkg_id in srcinfo.binaries:
if pkg_id.architecture == arch and '-image' in pkg_id.package_name:
try:
tests.append((pkg, self.britney.sources['unstable'][pkg][VERSION]))
except KeyError:
try:
tests.append((pkg, self.britney.sources['testing'][pkg][VERSION]))
except KeyError:
# package not in that series? *shrug*, then not
pass
break
tests.sort(key=lambda s_v: s_v[0])
return tests
#
# AMQP/cloud interface helpers
#
def read_pending_tests(self):
'''Read pending test requests from previous britney runs
Initialize self.pending_tests with that data.
'''
assert self.pending_tests is None, 'already initialized'
if not os.path.exists(self.pending_tests_file):
self.log_verbose('No %s, starting with no pending tests' %
self.pending_tests_file)
self.pending_tests = {}
return
with open(self.pending_tests_file) as f:
self.pending_tests = json.load(f)
self.log_verbose('Read pending requested tests from %s: %s' %
(self.pending_tests_file, self.pending_tests))
def latest_run_for_package(self, src, arch):
'''Return latest run ID for src on arch'''
# this requires iterating over all triggers and thus is expensive;
# cache the results
try:
return self.latest_run_for_package._cache[src][arch]
except KeyError:
pass
latest_run_id = ''
for srcmap in self.test_results.values():
try:
run_id = srcmap[src][arch][2]
except KeyError:
continue
if run_id > latest_run_id:
latest_run_id = run_id
self.latest_run_for_package._cache.setdefault(src, {})[arch] = latest_run_id
return latest_run_id
latest_run_for_package._cache = {}
def fetch_swift_results(self, swift_url, src, arch):
'''Download new results for source package/arch from swift'''
# Download results for one particular src/arch at most once in every
# run, as this is expensive
done_entry = src + '/' + arch
if done_entry in self.fetch_swift_results._done:
return
self.fetch_swift_results._done.add(done_entry)
# prepare query: get all runs with a timestamp later than the latest
# run_id for this package/arch; '@' is at the end of each run id, to
# mark the end of a test run directory path
# example: <autopkgtest-wily>wily/amd64/libp/libpng/20150630_054517@/result.tar
query = {'delimiter': '@',
'prefix': '%s/%s/%s/%s/' % (self.series, arch, srchash(src), src)}
# determine latest run_id from results
if not self.britney.options.adt_shared_results_cache:
latest_run_id = self.latest_run_for_package(src, arch)
if latest_run_id:
query['marker'] = query['prefix'] + latest_run_id
# request new results from swift
url = os.path.join(swift_url, self.swift_container)
url += '?' + urllib.parse.urlencode(query)
try:
f = urlopen(url, timeout=30)
if f.getcode() == 200:
result_paths = f.read().decode().strip().splitlines()
elif f.getcode() == 204: # No content
result_paths = []
else:
# we should not ever end up here as we expect a HTTPError in
# other cases; e. g. 3XX is something that tells us to adjust
# our URLS, so fail hard on those
raise NotImplementedError('fetch_swift_results(%s): cannot handle HTTP code %i' %
(url, f.getcode()))
f.close()
except IOError as e:
# 401 "Unauthorized" is swift's way of saying "container does not exist"
if hasattr(e, 'code') and e.code == 401:
self.log_verbose('fetch_swift_results: %s does not exist yet or is inaccessible' % url)
return
# Other status codes are usually a transient
# network/infrastructure failure. Ignoring this can lead to
# re-requesting tests which we already have results for, so
# fail hard on this and let the next run retry.
self.log_error('FATAL: Failure to fetch swift results from %s: %s' % (url, str(e)))
sys.exit(1)
for p in result_paths:
self.fetch_one_result(
os.path.join(swift_url, self.swift_container, p, 'result.tar'), src, arch)
fetch_swift_results._done = set()
def fetch_one_result(self, url, src, arch):
'''Download one result URL for source/arch
Remove matching pending_tests entries.
'''
try:
f = urlopen(url, timeout=30)
if f.getcode() == 200:
tar_bytes = io.BytesIO(f.read())
f.close()
else:
raise NotImplementedError('fetch_one_result(%s): cannot handle HTTP code %i' %
(url, f.getcode()))
except IOError as e:
self.log_error('Failure to fetch %s: %s' % (url, str(e)))
# we tolerate "not found" (something went wrong on uploading the
# result), but other things indicate infrastructure problems
if hasattr(e, 'code') and e.code == 404:
return
sys.exit(1)
try:
with tarfile.open(None, 'r', tar_bytes) as tar:
exitcode = int(tar.extractfile('exitcode').read().strip())
srcver = tar.extractfile('testpkg-version').read().decode().strip()
(ressrc, ver) = srcver.split()
testinfo = json.loads(tar.extractfile('testinfo.json').read().decode())
except (KeyError, ValueError, tarfile.TarError) as e:
self.log_error('%s is damaged, ignoring: %s' % (url, str(e)))
# ignore this; this will leave an orphaned request in pending.json
# and thus require manual retries after fixing the tmpfail, but we
# can't just blindly attribute it to some pending test.
return
if src != ressrc:
self.log_error('%s is a result for package %s, but expected package %s' %
(url, ressrc, src))
return
# parse recorded triggers in test result
for e in testinfo.get('custom_environment', []):
if e.startswith('ADT_TEST_TRIGGERS='):
result_triggers = [i for i in e.split('=', 1)[1].split() if '/' in i]
break
else:
self.log_error('%s result has no ADT_TEST_TRIGGERS, ignoring')
return
stamp = os.path.basename(os.path.dirname(url))
# allow some skipped tests, but nothing else
passed = exitcode in [0, 2]
self.log_verbose('Fetched test result for %s/%s/%s %s (triggers: %s): %s' % (
src, ver, arch, stamp, result_triggers, passed and 'pass' or 'fail'))
# remove matching test requests
for trigger in result_triggers:
try:
arch_list = self.pending_tests[trigger][src]
arch_list.remove(arch)
if not arch_list:
del self.pending_tests[trigger][src]
if not self.pending_tests[trigger]:
del self.pending_tests[trigger]
self.log_verbose('-> matches pending request %s/%s for trigger %s' % (src, arch, trigger))
except (KeyError, ValueError):
self.log_verbose('-> does not match any pending request for %s/%s' % (src, arch))
# add this result
for trigger in result_triggers:
# If a test runs because of its own package (newer version), ensure
# that we got a new enough version; FIXME: this should be done more
# generically by matching against testpkg-versions
(trigsrc, trigver) = trigger.split('/', 1)
if trigsrc == src and apt_pkg.version_compare(ver, trigver) < 0:
self.log_error('test trigger %s, but run for older version %s, ignoring' % (trigger, ver))
continue
result = self.test_results.setdefault(trigger, {}).setdefault(
src, {}).setdefault(arch, [False, None, ''])
# don't clobber existing passed results with failures from re-runs
if passed or not result[0]:
result[0] = passed
result[1] = ver
result[2] = stamp
def send_test_request(self, src, arch, trigger):
'''Send out AMQP request for testing src/arch for trigger'''
if self.britney.options.dry_run:
return
params = {'triggers': [trigger]}
if self.britney.options.adt_ppas:
params['ppas'] = self.britney.options.adt_ppas
qname = 'debci-ppa-%s-%s' % (self.series, arch)
else:
qname = 'debci-%s-%s' % (self.series, arch)
params = json.dumps(params)
if self.amqp_channel:
self.amqp_channel.basic_publish(amqp.Message(src + '\n' + params), routing_key=qname)
else:
assert self.amqp_file
with open(self.amqp_file, 'a') as f:
f.write('%s:%s %s\n' % (qname, src, params))
def pkg_test_request(self, src, arch, trigger):
'''Request one package test for one particular trigger
trigger is "pkgname/version" of the package that triggers the testing
of src.
This will only be done if that test wasn't already requested in a
previous run (i. e. not already in self.pending_tests) or there already
is a result for it. This ensures to download current results for this
package before requesting any test.
'''
# Don't re-request if we already have a result
try:
passed = self.test_results[trigger][src][arch][0]
if passed:
self.log_verbose('%s/%s triggered by %s already passed' % (src, arch, trigger))
return
self.log_verbose('Checking for new results for failed %s/%s for trigger %s' %
(src, arch, trigger))
raise KeyError # fall through
except KeyError:
self.fetch_swift_results(self.britney.options.adt_swift_url, src, arch)
# do we have one now?
try:
self.test_results[trigger][src][arch]
return
except KeyError:
pass
# Don't re-request if it's already pending
arch_list = self.pending_tests.setdefault(trigger, {}).setdefault(src, [])
if arch in arch_list:
self.log_verbose('Test %s/%s for %s is already pending, not queueing' %
(src, arch, trigger))
else:
self.log_verbose('Requesting %s autopkgtest on %s to verify %s' %
(src, arch, trigger))
arch_list.append(arch)
arch_list.sort()
self.send_test_request(src, arch, trigger)
def check_ever_passed(self, src, arch):
'''Check if tests for src ever passed on arch'''
# FIXME: add caching
for srcmap in self.test_results.values():
try:
if srcmap[src][arch][0]:
return True
except KeyError:
pass
return False
def has_force_badtest(self, src, ver, arch):
'''Check if src/ver/arch has a force-badtest hint'''
hints = self.britney.hints.search('force-badtest', package=src)
hints.extend(self.britney.hints.search('force', package=src))
if hints:
self.log_verbose('Checking hints for %s/%s/%s: %s' % (src, ver, arch, [str(h) for h in hints]))
for hint in hints:
if [mi for mi in hint.packages if mi.architecture in ['source', arch] and
(mi.version == 'all' or apt_pkg.version_compare(ver, mi.version) <= 0)]:
return True
return False
#
# Public API
#
def request(self, packages, excludes=None):
'''Request test runs for verifying packages
"packages" is a list of (trigsrc, trigver) pairs with the packages in
unstable (the "triggers") that need to be tested against their reverse
dependencies (and also their own tests).
"excludes" is an iterable of packages that britney determined to be
uninstallable.
'''
if excludes:
self.excludes.update(excludes)
self.log_verbose('Requesting autopkgtests for %s, exclusions: %s' %
(['%s/%s' % i for i in packages], str(self.excludes)))
for src, ver in packages:
for arch in self.britney.options.adt_arches:
for (testsrc, _) in self.tests_for_source(src, ver, arch):
self.pkg_test_request(testsrc, arch, src + '/' + ver)
# update the results on-disk cache, unless we are using a r/o shared one
if not self.britney.options.adt_shared_results_cache:
self.log_verbose('Updating results cache')
with open(self.results_cache_file + '.new', 'w') as f:
json.dump(self.test_results, f, indent=2)
os.rename(self.results_cache_file + '.new', self.results_cache_file)
# update the pending tests on-disk cache
self.log_verbose('Updated pending requested tests in %s' % self.pending_tests_file)
with open(self.pending_tests_file + '.new', 'w') as f:
json.dump(self.pending_tests, f, indent=2)
os.rename(self.pending_tests_file + '.new', self.pending_tests_file)
def results(self, trigsrc, trigver):
'''Return test results for triggering package
Return (passed, src, ver, arch ->
(ALWAYSFAIL|PASS|REGRESSION|IGNORE-FAIL|RUNNING|RUNNING-ALWAYSFAIL, log_url))
iterable for all package tests that got triggered by trigsrc/trigver.
ver is None if tests are still running on all architectures, otherwise
the actually tested version of src.
'''
# (src, ver) -> arch -> ALWAYSFAIL|PASS|REGRESSION|RUNNING|RUNNING-ALWAYSFAIL
pkg_arch_result = {}
trigger = trigsrc + '/' + trigver
for arch in self.britney.options.adt_arches:
for testsrc, testver in self.tests_for_source(trigsrc, trigver, arch):
ever_passed = self.check_ever_passed(testsrc, arch)
url = None
# Do we have a result already? (possibly for an older or newer
# version, that's okay)
try:
r = self.test_results[trigger][testsrc][arch]
testver = r[1]
run_id = r[2]
if r[0]:
result = 'PASS'
else:
# Special-case triggers from linux-meta*: we cannot compare
# results against different kernels, as e. g. a DKMS module
# might work against the default kernel but fail against a
# different flavor; so for those, ignore the "ever
# passed" check; FIXME: check against trigsrc only
if trigsrc.startswith('linux-meta') or trigsrc == 'linux':
ever_passed = False
if ever_passed:
if self.has_force_badtest(testsrc, testver, arch):
result = 'IGNORE-FAIL'
else:
result = 'REGRESSION'
else:
result = 'ALWAYSFAIL'
url = os.path.join(self.britney.options.adt_swift_url,
self.swift_container,
self.series,
arch,
srchash(testsrc),
testsrc,
run_id,
'log.gz')
except KeyError:
# no result for testsrc/arch; still running?
if arch in self.pending_tests.get(trigger, {}).get(testsrc, []):
if ever_passed and not self.has_force_badtest(testsrc, testver, arch):
result = 'RUNNING'
else:
result = 'RUNNING-ALWAYSFAIL'
url = 'http://autopkgtest.ubuntu.com/running'
else:
# ignore if adt or swift results are disabled,
# otherwise this is unexpected
if not hasattr(self.britney.options, 'adt_swift_url'):
continue
raise RuntimeError('Result for %s/%s/%s (triggered by %s) is neither known nor pending!' %
(testsrc, testver, arch, trigger))
pkg_arch_result.setdefault((testsrc, testver), {})[arch] = (result, url)
for ((testsrc, testver), arch_results) in pkg_arch_result.items():
r = set([v[0] for v in arch_results.values()])
passed = 'REGRESSION' not in r and 'RUNNING' not in r
# skip version if still running on all arches
if not r - {'RUNNING', 'RUNNING-ALWAYSFAIL'}:
testver = None
yield (passed, testsrc, testver, arch_results)