buildfarm/sqldb.py

   1 #!/usr/bin/python
   2
   3 # Samba.org buildfarm
   4 # Copyright (C) 2010 Jelmer Vernooij <jelmer@samba.org>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19
  20 from buildfarm import (
  21     BuildFarm,
  22     )
  23 from buildfarm.data import (
  24     Build,
  25     BuildResultStore,
  26     NoSuchBuildError,
  27     )
  28 from buildfarm.hostdb import (
  29     Host,
  30     HostDatabase,
  31     HostAlreadyExists,
  32     NoSuchHost,
  33     )
  34
  35 import os
  36 try:
  37     import sqlite3
  38 except ImportError:
  39     from pysqlite2 import dbapi2 as sqlite3
  40 from storm.database import create_database
  41 from storm.locals import Bool, Desc, Int, Unicode, RawStr
  42 from storm.store import Store
  43
  44
  45 class StormBuild(Build):
  46     __storm_table__ = "build"
  47
  48     id = Int(primary=True)
  49     tree = Unicode()
  50     revision = RawStr()
  51     host = Unicode()
  52     compiler = Unicode()
  53     checksum = RawStr()
  54     age = Int()
  55     status = Unicode()
  56     commit_revision = RawStr()
  57
  58     def remove(self):
  59         super(StormBuild, self).remove()
  60         Store.of(self).remove(self)
  61
  62
  63 class StormHost(Host):
  64     __storm_table__ = "host"
  65
  66     name = Unicode(primary=True)
  67     owner_name = Unicode(name="owner")
  68     owner_email = Unicode()
  69     password = Unicode()
  70     ssh_access = Bool()
  71     fqdn = RawStr()
  72     platform = Unicode()
  73     permission = Unicode()
  74     last_dead_mail = Int()
  75     join_time = Int()
  76
  77     def _set_owner(self, value):
  78         if value is None:
  79             self.owner_name = None
  80             self.owner_email = None
  81         else:
  82             (self.owner_name, self.owner_email) = value
  83
  84     def _get_owner(self):
  85         if self.owner_name is None:
  86             return None
  87         else:
  88             return (self.owner_name, self.owner_email)
  89
  90     owner = property(_get_owner, _set_owner)
  91
  92
  93 class StormHostDatabase(HostDatabase):
  94
  95     def __init__(self, store=None):
  96         if store is None:
  97             self.store = memory_store()
  98         else:
  99             self.store = store
 100
 101     def createhost(self, name, platform=None, owner=None, owner_email=None, password=None, permission=None):
 102         newhost = StormHost(unicode(name), owner=owner, owner_email=owner_email, password=password, permission=permission, platform=platform)
 103         try:
 104             self.store.add(newhost)
 105             self.store.flush()
 106         except sqlite3.IntegrityError:
 107             raise HostAlreadyExists(name)
 108         return newhost
 109
 110     def deletehost(self, name):
 111         """Remove a host."""
 112         host = self.host(name)
 113         self.store.remove(host)
 114
 115     def hosts(self):
 116         """Retrieve an iterable over all hosts."""
 117         return self.store.find(StormHost).order_by(StormHost.name)
 118
 119     def host(self, name):
 120         ret = self.hosts().find(StormHost.name==name).one()
 121         if ret is None:
 122             raise NoSuchHost(name)
 123         return ret
 124
 125     def commit(self):
 126         self.store.commit()
 127
 128
 129 class StormCachingBuildResultStore(BuildResultStore):
 130
 131     def __init__(self, basedir, store=None):
 132         super(StormCachingBuildResultStore, self).__init__(basedir)
 133
 134         if store is None:
 135             store = memory_store()
 136
 137         self.store = store
 138
 139     def get_previous_revision(self, tree, host, compiler, revision):
 140         result = self.store.find(StormBuild,
 141             StormBuild.tree == unicode(tree),
 142             StormBuild.host == unicode(host),
 143             StormBuild.compiler == unicode(compiler),
 144             StormBuild.commit_revision == revision)
 145         cur_build = result.any()
 146         if cur_build is None:
 147             raise NoSuchBuildError(tree, host, compiler, revision)
 148
 149         result = self.store.find(StormBuild,
 150             StormBuild.tree == unicode(tree),
 151             StormBuild.host == unicode(host),
 152             StormBuild.compiler == unicode(compiler),
 153             StormBuild.commit_revision != revision,
 154             StormBuild.id < cur_build.id)
 155         result = result.order_by(Desc(StormBuild.id))
 156         prev_build = result.first()
 157         if prev_build is None:
 158             raise NoSuchBuildError(tree, host, compiler, revision)
 159         return prev_build.commit_revision
 160
 161     def get_latest_revision(self, tree, host, compiler):
 162         result = self.store.find(StormBuild,
 163             StormBuild.tree == unicode(tree),
 164             StormBuild.host == unicode(host),
 165             StormBuild.compiler == unicode(compiler))
 166         result = result.order_by(Desc(StormBuild.id))
 167         build = result.first()
 168         if build is None:
 169             raise NoSuchBuildError(tree, host, compiler)
 170         return build.revision
 171
 172     def upload_build(self, build):
 173         super(StormCachingBuildResultStore, self).upload_build(build)
 174         rev, timestamp = build.revision_details()
 175         result = self.store.find(StormBuild, StormBuild.checksum == build.log_checksum())
 176         existing_build = result.one()
 177         if existing_build is not None:
 178             # Already present
 179             assert build.tree == existing_build.tree
 180             assert build.host == existing_build.host
 181             assert build.compiler == existing_build.compiler
 182             assert rev == existing_build.revision
 183             return
 184         new_basename = self.build_fname(build.tree, build.host, build.compiler, rev)
 185         new_build = StormBuild(new_basename, unicode(build.tree), unicode(build.host), unicode(build.compiler), rev)
 186         new_build.checksum = build.log_checksum()
 187         new_build.age = build.age_mtime()
 188         new_build.status = unicode(str(build.status()))
 189         self.store.add(new_build)
 190
 191
 192 class StormCachingBuildFarm(BuildFarm):
 193
 194     def __init__(self, path=None, store=None):
 195         self.store = store
 196         super(StormCachingBuildFarm, self).__init__(path)
 197
 198     def _get_store(self):
 199         if self.store is not None:
 200             return self.store
 201         else:
 202             db = create_database("sqlite:" + os.path.join(self.path, "hostdb.sqlite"))
 203             self.store = Store(db)
 204             setup_schema(self.store)
 205             return self.store
 206
 207     def _open_hostdb(self):
 208         return StormHostDatabase(self._get_store())
 209
 210     def _open_build_results(self):
 211         return StormCachingBuildResultStore(os.path.join(self.path, "data", "oldrevs"),
 212             self._get_store())
 213
 214     def commit(self):
 215         self.store.commit()
 216
 217
 218 def setup_schema(db):
 219     db.execute("CREATE TABLE IF NOT EXISTS host (name text, owner text, owner_email text, password text, ssh_access int, fqdn text, platform text, permission text, last_dead_mail int, join_time int);", noresult=True)
 220     db.execute("CREATE UNIQUE INDEX IF NOT EXISTS unique_hostname ON host (name);", noresult=True)
 221     db.execute("CREATE TABLE IF NOT EXISTS build (id integer primary key autoincrement, tree text, revision text, host text, compiler text, checksum text, age int, status text, commit_revision text);", noresult=True)
 222     db.execute("CREATE UNIQUE INDEX IF NOT EXISTS unique_checksum ON build (checksum);", noresult=True)
 223
 224
 225 def memory_store():
 226     db = create_database("sqlite:")
 227     store = Store(db)
 228     setup_schema(store)
 229     return store