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buildfarm.py
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buildfarm.py
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import re
import os
import sys
import logging
import shlex
import glob
import subprocess
from subprocess import Popen, PIPE
class Buildfarm:
def __init__(self, config, repository, build_dir, database):
self.config = config
self.repository = repository
self.build_dir = build_dir
self.database = database
def send_results(self, log_data):
self.create_directory_in_home_if_not_exists(".buildclient-buildfarm.tmp")
# decide which buildfarm is supposed to handle the send_results
if (log_data['repository_type'] == 'PostgreSQL'):
self.send_results_postgresql(log_data)
elif (log_data['repository_type'] == 'Greenplum'):
self.send_results_greenplum(log_data)
else:
logging.error("Unknown repository type: " + log_data['repository_type'])
sys.exit(1)
def send_results_postgresql(self, log_data):
self.create_directory_in_home_if_not_exists(os.path.join(".buildclient-buildfarm.tmp", "PostgreSQL"))
# findings
# - changed_files: list of changed files since last run, plus space, plus last git revision
# the list is joined by '!'
# the field is '' if there are no files
#
# - changed_since_success: like 'changed_files', but goes back all the way to the previous
# successful build
# the list is joined by '!'
# this field is only populated if there is an error, and a previous build
#
# - branch: name of the branch
#
# - res: result FIXME: verify
#
# - stage: the stage name where something failed, or 'OK' if everything is successful
#
# - animal: the buildfarm username
#
# - ts: unix timestamp where the whole operation started
# runtimes are calculated based on this timestamp
# 'ts' can only be 120 seconds in the future, or 86400 seconds in the past
# other values are rejected by the PostgreSQL buildfarm
#
# - log: log entry
#
# - conf: configuration FIXME: verify
#
# - frozen_sconf: configuration FIXME: verify
#
# - logtar: tar/gz archive with logfiles
# the runtime for every stage is calculated based on the stat[9] (mtime)
# difference between 'ts'
# the file 'githead.log' is not included in server output
# however the file contains the git revision which is extracted
#
# - the following fields are base64 encoded, and "proofed":
# - log_data: FIXME: ???
# - confsum: FIXME: ???
# - changed_files
# - changed_since_success
# - logtar
# - frozen_sconf
#
# - algorithm used for base64 encoding and "proofing":
# perl -e 'use MIME::Base64; $a = "Test"; map{ $_=encode_base64($_,""); tr/+=/$@/; }($a); print "a: $a\n";'
# a: VGVzdA@@
# without the "proofing":
# perl -e 'use MIME::Base64; $a = "Test"; map{ $_=encode_base64($_,""); }($a); print "a: $a\n";'
# a: VGVzdA==
# note: the server does not verify if the data is "proofed"
#
# - sig: the additional URL path, after pgstatus.pl, minus leading slash
# my $query = new CGI;
# my $sig = $query->path_info;
# $sig =~ s!^/!!;
# http://perldoc.perl.org/CGI.html
# POST /cgi-bin/pgstatus.pl/20f16c47718d6da0460eb69930edfd5edd9e6d9a HTTP/1.1
#
# my $content = "branch=$branch&res=$res&stage=$stage&animal=$animal&ts=$ts&log=$log&conf=$conf";
# my $extra_content = "changed_files=$changed_this_run&changed_since_success=$changed_since_success&";
#
# my $calc_sig = sha1_hex($content, $secret);
# my $calc_sig2 = sha1_hex($extra_content, $content, $secret);
#
# if ($calc_sig ne $sig && $calc_sig2 ne $sig)
#
#
# - hostname for requests is: Host: www.pgbuildfarm.org
#
# - username for requests is: Postgres Build Farm Reporter
#
#
# The following fields are included in the POST request:
#
#changed_files=
#changed_since_success=
#branch=HEAD
#res=0
#stage=OK
#animal=croaker
#ts=1459882463
#log=TGFzdCBmaWxlIG10aW1lIGluIHNuYXBzaG90OiBUdWUgQXByICA1IDE4OjUxOjE5IDIwMTYgR01UCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQo@
#conf=
#frozen_sconf=
#logtar=
#
#
# - error codes:
#
# * Status: 492 bad branch parameter
# - list of expected branches in: https://github.com/PGBuildFarm/server-code/blob/master/htdocs/branches_of_interest.txt
# HEAD = master/HEAD
#
# * Status: 490 bad parameters
# - expected parameters:
# * $animal, $ts, $stage, $sig
#
# * Status: 495 Unknown System
# - if the animal is not in the 'buildsystems' table (column: name) and status = 'approved'
#
# * Status: 450 sig mismatch
# - Signature 1 or 2 do not match
#
# * Status: 491 bad ts parameter ...
# - timestamp is out of range
#
# * Status: 493 snapshot too old: ...
# - the current revision is too old
# - currently not verified
#
# * Status: 460 script version too low
# - client side script is outdated
# 'script_version' => 'REL_4.17'
#
# * Status: 461 web script version too low
# - client side script is outdated
# 'web_script_version' => 'REL_4.17'
#
# * Status: 462 database failure
# - internal server problem
#
# * Status: 200 OK
# - generated by DBI
# print "request was on:\n";
# print "res=$res&stage=$stage&animal=$animal&ts=$ts";
#
#
# the following files are in logtar, in reverse --sort=time order (first files listed first)
#
# SCM-checkout.log not included in this buildfarm: checkout happens earlier
# githead.log includes only the revision, written in Build.run_configure()
# configure.log ./configure output, written in Build.run_configure()
# config.log ./configure results, written in Build.run_configure()
# make.log "make" output, written in Build.run_make()
# check.log mingle-mangle of "make check" and other files, written in Build.run_tests()
# make-contrib.log output of "make" in contrib/, written in Build.run_tests()
# make-testmodules.log
# make-install.log
# install-contrib.log
# install-testmodules.log
# check-pg_upgrade.log output of "make check" in src/bin/pg_upgrade or contrib/pg_upgrade, written in Build.run_tests()
# test-decoding-check.log
# initdb-C.log
# startdb-C-1.log
# install-check-C.log
# stopdb-C-1.log
# startdb-C-2.log
# isolation-check.log
# stopdb-C-2.log
# startdb-C-3.log
# pl-install-check-C.log
# stopdb-C-3.log
# startdb-C-4.log
# contrib-install-check-C.log
# stopdb-C-4.log
# startdb-C-5.log
# testmodules-install-check-C.log
# stopdb-C-5.log
# ecpg-check.log
#
#
# missing: "bin-check.log" - only in 9.4 and later, and only with --enable-tap-tests
#
#
#
#Stages:
# OK, distclean, Make, Doc, Install, Contrib, TestModules, ContribInstall, TestModulesInstall
# Initdb-$locale, StartDb-$locale:$started_times, StopDb-$locale:$started_times
# InstallCheck-$locale, ContribCheck-$locale, TestModulesCheck-$locale, PLCheck-$locale
# IsolationCheck, BinInstallCheck, Check, ECPG-Check, Configure
# test-decoding-check
# $MODULE-build, $MODULE-install, $MODULE-installcheck-$locale
# sepgsql-policy-build, sepgsql-policy-install, test-sepgsql
# InstallCheck-collate-$locale
# pg_upgradeCheck
# $target-CVS, $target-CVS-Merge, $target-CVS-Dirty, $target-CVS-Extraneous-Files
# $target-CVS-Extraneous-Ignore, $target-CVS-status, Git-mirror, $target-Git, $target-Git-Dirty
#
#
# 'steps_completed' => 'SCM-checkout Configure Make Check Contrib TestModules Install ContribInstall TestModulesInstall pg_upgradeCheck test-decoding-check Initdb-C InstallCheck-C IsolationCheck PLCheck-C ContribCheck-C TestModulesCheck-C ECPG-Check',
# honor 'send_results' flag
if (self.config.get('send-results') is False):
logging.info("Not sending results to buildfarm server")
return True
logging.debug("Sending results to buildfarm server ...")
# there should be an entry, because it was written moments ago
result_this = self.database.last_log_entry(log_data['repository'], log_data['branch'], log_data['revision'], is_buildfarm = True, start_time = log_data['start_time'])
if (result_this is False):
logging.error("Can't find current log entry in database")
sys.exit(1)
#print(" this result: " + str(result_this))
result_previous = self.database.previous_log_entry(result_this['id'], log_data['repository'], log_data['branch'], log_data['revision'], is_buildfarm = True)
if (result_previous is False):
logging.debug("no previous log entry in database")
changed_files = ''
else:
#print("previous result: " + str(result_previous))
changed_files = self.repository.changed_files_with_commits(result_previous['revision'], result_this['revision'])
#print("changes:" + os.linesep + changed_files)
result_previous_success = self.database.previous_log_entry(result_this['id'], log_data['repository'], log_data['branch'], log_data['revision'], is_buildfarm = True, without_error = True)
if (result_previous_success is False):
logging.debug("no previous log entry for a successful run in database")
changed_since_success = ''
else:
#print("previous result: " + str(result_previous_success))
changed_since_success = self.repository.changed_files_with_commits(result_previous_success['revision'], result_this['revision'])
res = 0
stage = ''
steps_completed = []
# see if and where it failed
if (result_this['run_git_update'] == 1 and result_this['result_git_update'] > 0):
res = result_this['result_git_update']
stage = 'SCM'
elif (result_this['result_portcheck'] is not None and result_this['result_portcheck'] > 0):
res = result_this['result_portcheck']
stage = 'Pre-run-port-check'
elif (result_this['run_configure'] == 1 and result_this['result_configure'] > 0):
res = result_this['result_configure']
stage = 'Configure'
elif (result_this['run_make'] == 1 and result_this['result_make'] > 0):
res = result_this['result_make']
stage = 'Make'
elif (result_this['run_install'] == 1 and result_this['result_install'] > 0):
res = result_this['result_install']
stage = 'Make-install'
elif (result_this['run_tests'] == 1 and result_this['result_tests'] > 0):
res = result_this['result_tests']
stage = 'Check'
else:
res = 0
stage = 'OK'
if (result_this['run_git_update'] == 1):
steps_completed.append("SCM-checkout")
if (result_this['run_configure'] == 1):
steps_completed.append("Configure")
if (result_this['run_make'] == 1):
steps_completed.append("Make")
if (result_this['run_install'] == 1):
steps_completed.append("Install")
if (result_this['run_tests'] == 1):
steps_completed.append("Check")
buildlogs = os.path.join(self.build_dir, '.buildfarm-logs')
if (os.path.isfile(os.path.join(buildlogs, 'make-contrib.log'))):
steps_completed.append("Contrib")
if (os.path.isfile(os.path.join(buildlogs, 'make-testmodules.log'))):
steps_completed.append("TestModules")
if (os.path.isfile(os.path.join(buildlogs, 'install-contrib.log'))):
steps_completed.append("ContribInstall")
if (os.path.isfile(os.path.join(buildlogs, 'install-testmodules.log'))):
steps_completed.append("TestModulesInstall")
if (os.path.isfile(os.path.join(buildlogs, 'check-pg_upgrade.log'))):
steps_completed.append("pg_upgradeCheck")
if (os.path.isfile(os.path.join(buildlogs, 'test-decoding-check.log'))):
steps_completed.append("test-decoding-check")
if (os.path.isfile(os.path.join(buildlogs, 'ecpg-check.log'))):
steps_completed.append("ECPG-Check")
# find all 'initdb-*.log' logfiles, extract the locale
initdb_list = glob.glob(buildlogs + os.sep + 'initdb-*.log')
for initdb in initdb_list:
initdb_file = os.path.basename(initdb)
initdb_locale = initdb_file[7:][:-4]
steps_completed.append("Initdb-" + initdb_locale)
if (os.path.isfile(os.path.join(buildlogs, 'install-check-' + initdb_locale + '.log'))):
steps_completed.append("InstallCheck-" + initdb_locale)
if (os.path.isfile(os.path.join(buildlogs, 'isolation-check-' + initdb_locale + '.log'))):
steps_completed.append("IsolationCheck-" + initdb_locale)
if (os.path.isfile(os.path.join(buildlogs, 'pl-install-check-' + initdb_locale + '.log'))):
steps_completed.append("PLCheck-" + initdb_locale)
if (os.path.isfile(os.path.join(buildlogs, 'contrib-install-check-' + initdb_locale + '.log'))):
steps_completed.append("ContribCheck-" + initdb_locale)
if (os.path.isfile(os.path.join(buildlogs, 'testmodules-install-check-' + initdb_locale + '.log'))):
steps_completed.append("TestModulesCheck-" + initdb_locale)
steps_completed = " ".join(steps_completed)
# 'steps_completed' => 'ContribCheck-C TestModulesCheck-C',
print("steps completed: " + steps_completed)
branch = log_data['branch']
if (branch is None):
branch = '?'
animal = self.config.get('buildfarm-animal')
secret = self.config.get('buildfarm-secret')
ts = log_data['start_time']
log = ''
# build a minimal config
conf = "$Script_Config =" + os.linesep
conf += "{" + os.linesep
conf += " 'animal' => '" + animal + "'," + os.linesep
conf += " 'script_version' => 'REL_4.17'," + os.linesep
conf += " 'web_script_version' => 'REL_4.17'," + os.linesep
conf += " 'current_ts' => " + str(ts) + "," + os.linesep
conf += " 'build_root' => '" + self.config.get('build-dir') + "'," + os.linesep
conf += " 'git_keep_mirror' => 1," + os.linesep
conf += " 'target' => 'http://www.pgbuildfarm.org/cgi-bin/pgstatus.pl'," + os.linesep
conf += " 'upgrade_target' => 'http://www.pgbuildfarm.org/cgi-bin/upgrade.pl'," + os.linesep
if (self.config.get('clean-on-failure') is True):
conf += " 'keep_error_builds' => 0," + os.linesep
else:
conf += " 'keep_error_builds' => 1," + os.linesep
conf += " 'orig_env' => {" + os.linesep
env_blacklist = ['PGPASSWORD']
env_whitelist = ['MAKE', 'CC', 'CPP', 'CXX', 'FLAG', 'LIBRAR', 'INCLUDE']
env_whitelist.extend(['HOME', 'LOGNAME', 'USER', 'PATH', 'SHELL', 'LD', 'LD_LIBRARY_PATH'])
env = []
for k in os.environ.keys():
v = os.environ[k]
if (k in env_blacklist):
v = 'xxxxxx'
elif (k in env_whitelist):
pass
else:
v = 'xxxxxx'
env.append("'" + k + "' => '" + v + "'")
conf += " " + ",\n ".join(env) + os.linesep
conf += " }," + os.linesep
conf += " 'extra_config' => { }," + os.linesep
conf += " 'locales' => [ ]," + os.linesep
conf += " 'steps_completed' => [ " + steps_completed + " ]" + os.linesep
if (len(self.config.get('extra-configure')) > 0):
config_opts = []
tmp1 = shlex.split(self.config.get('extra-configure'))
for tmp2 in tmp1:
config_opts.append("'" + tmp2 + "'")
config_opts = ",\n".join(config_opts)
else:
config_opts = ''
# last line without ',' at the end
conf += " 'config_opts' => [ " + config_opts + " ]" + os.linesep
conf += "};" + os.linesep
#print("conf:" + os.linesep + conf)
# gather logfiles for buildfarm server
logfiles = list(filter(os.path.isfile, glob.glob(buildlogs + os.sep + "*.log")))
logfiles.sort(key = lambda f: os.path.getmtime(f))
logfiles = [os.path.basename(x) for x in logfiles]
#print("logfiles: " + str(logfiles))
logging.debug(str(len(logfiles)) + " logfiles for buildfarm server")
# quickly change directory, create the tarball, and come back
tar = self.config.get('tar-bin') + " -z -cf runlogs.tgz " + " ".join(logfiles)
call = shlex.split(tar)
proc = Popen(call, stdout=PIPE, stderr=subprocess.STDOUT, cwd=buildlogs)
out, err = proc.communicate()
exitcode = proc.returncode
if (exitcode > 0):
logging.error("unable to create tar archive for buildfarm server")
logging.error("error: " + str(err))
return False
#changed_files=
#changed_since_success=
#branch=HEAD
#res=0
#stage=OK
#animal=croaker
#ts=1459882463
#log=TGFzdCBmaWxlIG10aW1lIGluIHNuYXBzaG90OiBUdWUgQXByICA1IDE4OjUxOjE5IDIwMTYgR01UCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQo@
#conf=
#frozen_sconf=
#logtar=
# proof server data:
print("changed_files: " + str(len(changed_files)) + " bytes")
print("changed_since_success: " + str(len(changed_since_success)) + " bytes")
print("branch: " + str(branch))
print("res: " + str(res))
print("stage: " + str(stage))
print("animal: " + str(animal))
print("ts: " + str(ts))
print("log: " + str(log))
print("conf: " + str(len(conf)) + " bytes")
return True
def send_results_greenplum(self, log_data):
logging.error("Buildfarm mode for Greenplum not yet implemented")
sys.exit(1)
self.create_directory_in_home_if_not_exists(os.path.join(".buildclient-buildfarm.tmp", "Greenplum"))
# honor 'send_results' flag
if (self.config.get('send-results') is False):
logging.info("Not sending results to buildfarm server")
return True
logging.debug("Sending results to buildfarm server ...")
def create_directory_in_home_if_not_exists(self, dir):
# the config module ensures that $HOME is set
path = os.path.join(os.environ.get('HOME'), dir)
if (not os.path.exists(path)):
try:
os.mkdir(path, 0o0700)
except OSError as e:
logging.error("failed to create directory: " + dir)
logging.error("Error: " + e.strerror)
sys.exit(1)