buildfarm/__init__.py

   1 #!/usr/bin/python
   2 # Simple database query script for the buildfarm
   3 #
   4 # Copyright (C) Jelmer Vernooij <jelmer@samba.org>         2010
   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 2 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, write to the Free Software
  18 #   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19
  20 import ConfigParser
  21 import os
  22 import re
  23
  24
  25 class Tree(object):
  26     """A tree to build."""
  27
  28     def __init__(self, name, scm, repo, branch, subdir="", srcdir=""):
  29         self.name = name
  30         self.repo = repo
  31         self.scm = scm
  32         self.branch = branch
  33         self.subdir = subdir
  34         self.srcdir = srcdir
  35         self.scm = scm
  36
  37     def __repr__(self):
  38         return "<%s %r>" % (self.__class__.__name__, self.name)
  39
  40
  41 def read_trees_from_conf(path):
  42     """Read trees from a configuration file."""
  43     ret = {}
  44     cfp = ConfigParser.ConfigParser()
  45     cfp.readfp(open(path))
  46     for s in cfp.sections():
  47         ret[s] = Tree(name=s, **dict(cfp.items(s)))
  48     return ret
  49
  50
  51 def lcov_extract_percentage(text):
  52     m = re.search('\<td class="headerItem".*?\>Code\&nbsp\;covered\:\<\/td\>.*?\n.*?\<td class="headerValue".*?\>([0-9.]+) \%', text)
  53     if m:
  54         return m.group(1)
  55     else:
  56         return None
  57
  58
  59 class BuildFarm(object):
  60
  61     LCOVHOST = "magni"
  62     OLDAGE = 60*60*4,
  63     DEADAGE = 60*60*24*4
  64
  65     def __init__(self, path=None):
  66         if path is None:
  67             path = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
  68         self.path = path
  69         self.cachedir = os.path.join(self.path, "cache")
  70         self.webdir = os.path.join(self.path, "web")
  71         if not os.path.isdir(path):
  72             raise Exception("web directory %s does not exist" % self.webdir)
  73         self.trees = read_trees_from_conf(os.path.join(self.webdir, "trees.conf"))
  74         self.builds = self._open_build_results()
  75         self.upload_builds = self._open_upload_build_results()
  76         self.hostdb = self._open_hostdb()
  77         self.compilers = self._load_compilers()
  78         self.lcovdir = os.path.join(self.path, "lcov/data")
  79
  80     def __repr__(self):
  81         return "%s(%r)" % (self.__class__.__name__, self.path)
  82
  83     def _open_build_results(self):
  84         from buildfarm import data
  85         return data.BuildResultStore(os.path.join(self.path, "data", "oldrevs"))
  86
  87     def _open_upload_build_results(self):
  88         from buildfarm import data
  89         return data.UploadBuildResultStore(os.path.join(self.path, "data", "upload"))
  90
  91     def _open_hostdb(self):
  92         from buildfarm import hostdb
  93         return hostdb.HostDatabase(
  94             os.path.join(self.path, "hostdb.sqlite"))
  95
  96     def _load_compilers(self):
  97         from buildfarm import util
  98         return util.load_list(os.path.join(self.webdir, "compilers.list"))
  99
 100     def lcov_status(self, tree):
 101         """get status of build"""
 102         from buildfarm import data, util
 103         file = os.path.join(self.lcovdir, self.LCOVHOST, tree, "index.html")
 104         try:
 105             lcov_html = util.FileLoad(file)
 106         except OSError:
 107             # File does not exist
 108             raise data.NoSuchBuildError(tree, self.LCOVHOST, "lcov")
 109
 110         perc = lcov_extract_percentage(lcov_html)
 111         if perc is None:
 112             ret = ""
 113         else:
 114             ret = perc
 115         return perc
 116
 117     def get_build(self, tree, host, compiler, rev=None):
 118         if rev:
 119             return self.builds.get_build(tree, host, compiler, rev)
 120         else:
 121             return self.upload_builds.get_build(tree, host, compiler)
 122
 123     def get_new_builds(self):
 124         from buildfarm import data
 125         for host in self.hostdb.hosts():
 126             for tree in self.trees:
 127                 for compiler in self.compilers:
 128                     # By building the log file name this way, using only the list of
 129                     # hosts, trees and compilers as input, we ensure we
 130                     # control the inputs
 131                     try:
 132                         yield self.upload_builds.get_build(host, tree, compiler)
 133                     except data.NoSuchBuildError:
 134                         continue
 135
 136
 137 class CachingBuildFarm(BuildFarm):
 138
 139     def __init__(self, path=None, cachedirname=None):
 140         self.cachedir = None
 141         super(CachingBuildFarm, self).__init__(path)
 142
 143         if cachedirname:
 144             self.cachedir = os.path.join(self.path, cachedirname)
 145         else:
 146             self.cachedir = os.path.join(self.path, "cache2")
 147         self.builds = self._open_build_results()
 148         self.upload_builds = self._open_upload_build_results()
 149
 150     def _open_build_results(self):
 151         from buildfarm import data
 152         if not self.cachedir:
 153             return
 154         return data.CachingBuildResultStore(os.path.join(self.path, "data", "oldrevs"),
 155                 self.cachedir)
 156
 157     def _open_upload_build_results(self):
 158         from buildfarm import data
 159         if not self.cachedir:
 160             return
 161         return data.CachingUploadBuildResultStore(os.path.join(self.path, "data", "upload"),
 162                 self.cachedir)
 163
 164     def lcov_status(self, tree):
 165         """get status of build"""
 166         from buildfarm import data, util
 167         cachefile = self.builds.get_lcov_cached_status(self.LCOVHOST, tree)
 168         file = os.path.join(self.lcovdir, self.LCOVHOST, tree, "index.html")
 169         try:
 170             st1 = os.stat(file)
 171         except OSError:
 172             # File does not exist
 173             raise data.NoSuchBuildError(tree, self.LCOVHOST, "lcov")
 174         try:
 175             st2 = os.stat(cachefile)
 176         except OSError:
 177             # file does not exist
 178             st2 = None
 179
 180         if st2 and st1.st_ctime <= st2.st_mtime:
 181             ret = util.FileLoad(cachefile)
 182             if ret == "":
 183                 return None
 184             return ret
 185
 186         lcov_html = util.FileLoad(file)
 187         perc = lcov_extract_percentage(lcov_html)
 188         if perc is None:
 189             ret = ""
 190         else:
 191             ret = perc
 192         if not self.readonly:
 193             util.FileSave(cachefile, ret)
 194         return perc