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import gear
worker = gear.Worker('reverser')
worker.addServer('localhost')
worker.registerFunction("reverse")
worker.registerFunction("build-graph")
worker.registerFunction("build-artifact")
worker.registerFunction("cache-request")
import time
import json
import os
import requests
import urlparse
from subprocess import Popen, PIPE, STDOUT
import distbuild
from contextlib import contextmanager
import paramiko
import logging
logging.basicConfig()
#TODO: values from settings
cache_server = 'http://cache.baserock.org:8080'
@contextmanager
def ssh_manager(host, port, username, key):
'''
returns -> ssh connection ready to be used
'''
# TODO: use an ssh key!!! It isn't working
client = paramiko.client.SSHClient()
client.load_host_keys(key)
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(host, port=port)
try:
yield client
finally:
client.close()
def upload_files(cache_key, suffixes):
print "DEBUG: start upload_files"
cache_dir = '/src/cache/artifacts'
remote_cache_dir = '/src/cache_server/'
files_to_upload = [os.path.join(cache_dir,
cache_key + '.' + suffix)
for suffix in suffixes]
with ssh_manager('127.0.0.1', 22, 'root',
'/root/gerritbot/gerritbot_rsa') as client:
sftp = client.open_sftp()
for single_file in files_to_upload:
remote_dest = os.path.join(remote_cache_dir,
os.path.basename(single_file))
remote_dest_tmp = os.path.join(remote_cache_dir,
os.path.basename(single_file)
+ '.tmp')
print "DEBUG: going to upload %s" % single_file
print "DEBUG: upload destination %s" % remote_dest
try:
sftp.stat(remote_dest)
print "DEBUG: file already exists"
return
except IOError:
print "DEBUG: file not found in cache, uploading"
sftp.put(single_file, remote_dest_tmp)
sftp.rename(remote_dest_tmp, remote_dest)
while True:
print "DEBUG: Waiting for job"
job = worker.getJob()
print "DEBUG: Received job '%s'" % job.name
if job.name == "reverse":
print "DEBUG: Starting job reverse with '%s'" % job.arguments
for x in range(0, 100):
job.sendWorkData("This is: %s" % x)
job.sendWorkComplete("answer")
elif job.name == "build-graph":
bg_request=json.loads(job.arguments)
print ("DEBUG: Starting build-graph calculation for Repo: '%s' "
"Ref: '%s' System: '%s'") % (bg_request['repo'],
bg_request['ref'],
bg_request['system'])
# TODO: There should be another way of doing this.
cmd = ['morph', 'calculate-build-graph', '--quiet',
bg_request['repo'], bg_request['ref'], bg_request['system']]
p = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
output = p.stdout.read()
# TODO: catch errors calculating build-graph here instead of sending
# the error as build-graph :)
print "DEBUG: finished computing build graph"
job.sendWorkComplete(output)
elif job.name == "build-artifact":
artifact = distbuild.decode_artifact_reference(job.arguments)
print "building %s" % artifact.name
cmd = ['morph', 'worker-build', '--build-log-on-stdout', artifact.name]
p = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
p.stdin.write(job.arguments)
p.stdin.close()
while True:
line = p.stdout.readline()
if not line: break
job.sendWorkData(line)
kind = artifact.kind
if kind == 'chunk':
artifact_names = artifact.source_artifact_names
suffixes = ['%s.%s' % (kind, name) for name in artifact_names]
suffixes.append('build-log')
else:
filename = '%s.%s' % (kind, artifact.name)
suffixes = [filename]
if kind == 'stratum':
suffixes.append(filename + '.meta')
upload_files(artifact.cache_key, suffixes)
job.sendWorkComplete(artifact.cache_key)
elif job.name == 'cache-request':
artifact_names = json.loads(job.arguments)
url = urlparse.urljoin(cache_server, '/1.0/artifacts')
r = requests.post(url, json=artifact_names)
job.sendWorkComplete(json.dumps(r.json()))
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