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model.py
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/
model.py
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# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import os
import sqlite3
import time
import zlib
class Database(object):
"""
Store build and test result information, and support incremental updates to results.
"""
DEFAULT_INCREMENTAL_TABLE = 'build_emitted'
def __init__(self, path=None):
if path is None:
path = os.getenv('KETTLE_DB') or 'build.db'
self.db = sqlite3.connect(path)
self.db.executescript('''
create table if not exists build(gcs_path primary key, started_json, finished_json, finished_time);
create table if not exists file(path string primary key, data);
create table if not exists build_junit_missing(build_id integer primary key);
create index if not exists build_finished_time_idx on build(finished_time)
''')
def commit(self):
self.db.commit()
def get_existing_builds(self, jobs_dir):
"""
Return a set of (job, number) tuples indicating already present builds.
A build is already present if it has a finished.json, or if it's older than
five days with no finished.json.
"""
builds_have_paths = self.db.execute(
'select gcs_path from build'
' where gcs_path between ? and ?'
' and finished_json IS NOT NULL'
,
(jobs_dir + '\x00', jobs_dir + '\x7f')).fetchall()
path_tuple = lambda path: tuple(path[len(jobs_dir):].split('/')[-2:])
builds_have = {path_tuple(path) for (path,) in builds_have_paths}
for path, started_json in self.db.execute(
'select gcs_path, started_json from build'
' where gcs_path between ? and ?'
' and started_json IS NOT NULL and finished_json IS NULL',
(jobs_dir + '\x00', jobs_dir + '\x7f')):
started = json.loads(started_json)
if int(started['timestamp']) < time.time() - 60*60*24*5:
# over 5 days old, no need to try looking for finished any more.
builds_have.add(path_tuple(path))
return builds_have
### make_db
def insert_build(self, build_dir, started, finished):
"""
Add a build with optional started and finished dictionaries to the database.
"""
started_json = started and json.dumps(started, sort_keys=True)
finished_json = finished and json.dumps(finished, sort_keys=True)
if not self.db.execute(
'select 1 from build where gcs_path=? '
'and started_json=? and finished_json=?',
(build_dir, started_json, finished_json)).fetchone():
rowid = self.db.execute(
'insert or replace into build values(?,?,?,?)',
(build_dir, started_json, finished_json,
finished and finished.get('timestamp', None))).lastrowid
self.db.execute('insert into build_junit_missing values(?)', (rowid,))
return True
return False
def get_builds_missing_junit(self):
"""
Return (rowid, path) for each build that hasn't enumerated junit files.
"""
# cleanup
self.db.execute('delete from build_junit_missing'
' where build_id not in (select rowid from build)')
return self.db.execute(
'select rowid, gcs_path from build'
' where rowid in (select build_id from build_junit_missing)'
).fetchall()
def insert_build_junits(self, build_id, junits):
"""
Insert a junit dictionary {gcs_path: contents} for a given build's rowid.
"""
for path, data in junits.iteritems():
self.db.execute('replace into file values(?,?)',
(path, buffer(zlib.compress(data, 9))))
self.db.execute('delete from build_junit_missing where build_id=?', (build_id,))
### make_json
def _init_incremental(self, table):
"""
Create tables necessary for storing incremental emission state.
"""
self.db.execute('create table if not exists %s(build_id integer primary key, gen)' % table)
@staticmethod
def _get_builds(results):
for rowid, path, started, finished in results:
started = started and json.loads(started)
finished = finished and json.loads(finished)
yield rowid, path, started, finished
def get_builds(self, path='', min_started=None, incremental_table=DEFAULT_INCREMENTAL_TABLE):
"""
Iterate through (buildid, gcs_path, started, finished) for each build under
the given path that has not already been emitted.
"""
self._init_incremental(incremental_table)
results = self.db.execute(
'select rowid, gcs_path, started_json, finished_json from build '
'where gcs_path like ?'
' and finished_time >= ?' +
' and rowid not in (select build_id from %s)'
' order by finished_time' % incremental_table
, (path + '%', min_started or 0)).fetchall()
return self._get_builds(results)
def get_builds_from_paths(self, paths, incremental_table=DEFAULT_INCREMENTAL_TABLE):
self._init_incremental(incremental_table)
results = self.db.execute(
'select rowid, gcs_path, started_json, finished_json from build '
'where gcs_path in (%s)'
' and rowid not in (select build_id from %s)'
' order by finished_time' % (','.join(['?'] * len(paths)), incremental_table)
, paths).fetchall()
return self._get_builds(results)
def test_results_for_build(self, path):
"""
Return a list of file data under the given path. Intended for JUnit artifacts.
"""
results = []
for dataz, in self.db.execute(
'select data from file where path between ? and ?',
(path, path + '\x7F')):
data = zlib.decompress(dataz)
if data:
results.append(data)
return results
def get_oldest_emitted(self, incremental_table):
return self.db.execute('select min(finished_time) from build '
'where rowid in (select build_id from %s)'
% incremental_table).fetchone()[0]
def reset_emitted(self, incremental_table=DEFAULT_INCREMENTAL_TABLE):
self.db.execute('drop table if exists %s' % incremental_table)
def insert_emitted(self, rows_emitted, incremental_table=DEFAULT_INCREMENTAL_TABLE):
self._init_incremental(incremental_table)
gen, = self.db.execute('select max(gen)+1 from %s' % incremental_table).fetchone()
if not gen:
gen = 0
self.db.executemany(
'insert into %s values(?,?)' % incremental_table,
((row, gen) for row in rows_emitted))
self.db.commit()
return gen