build_system.py

   1 # mass-build - Easily Build Software Involving a Large Amount of Source Repositories
   2 # Copyright (C) 2012-2013 Ralf Jung <post@ralfj.de>
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 import os, shutil, subprocess
  19
  20 '''A build system must have a "build" method with parameters "reconfigure" and "waitAfterConfig".'''
  21
  22 # Compile, build, and install cmake projects:
  23 class CMake:
  24         def __init__(self, sourceFolder, buildFolder, config):
  25                 self.sourceFolder = os.path.abspath(sourceFolder)
  26                 self.buildFolder = os.path.abspath(buildFolder)
  27                 self.config = config
  28
  29         def setEnv(self, name, val):
  30                 '''Set the given environment variable, return old value'''
  31                 oldVal = os.getenv(name)
  32                 os.putenv(name, val)
  33                 return oldVal
  34
  35         def prependDirToEnv(self, name, dir, default):
  36                 '''Prepends the given directory to the environment variable. If the variable is empty, dir isprepended to the default.
  37                    Returns the old value.'''
  38                 oldVal = os.getenv(name)
  39                 oldPaths = default if oldVal is None else oldVal
  40                 os.putenv(name, dir+':'+oldPaths)
  41                 return oldVal
  42
  43         def restoreEnv(self, name, oldVal):
  44                 '''Restore environment variable to previous value'''
  45                 if oldVal is None:
  46                         os.unsetenv(name)
  47                 else:
  48                         os.putenv(name, oldVal)
  49
  50         def build(self, reconfigure, waitAfterConfig):
  51                 # Make sure we have a build directory
  52                 if not os.path.exists(self.buildFolder): os.makedirs(self.buildFolder)
  53                 os.chdir(self.buildFolder)
  54                 # In case of reconfiguration, delete cache file if it exists
  55                 cacheFile = 'CMakeCache.txt'
  56                 if os.path.exists(cacheFile) and reconfigure: os.remove(cacheFile)
  57                 # Run cmake, in the proper environment, then restore old environment
  58                 oldPKGConfigPath = self.setEnv('PKG_CONFIG_PATH', os.path.join(self.config['installDir'], 'lib', 'pkgconfig'))
  59                 oldCMakePrefixPath = self.setEnv('CMAKE_PREFIX_PATH', self.config['installDir'])
  60                 oldXDGDataDirs = self.prependDirToEnv('XDG_DATA_DIRS', os.path.join(self.config['installDir'], 'share'), '/usr/share')
  61                 oldXDGConfigDirs = self.prependDirToEnv('XDG_CONFIG_DIRS', os.path.join(self.config['installDir'], 'etc', 'xdg'), '/etc/xdg')
  62                 subprocess.check_call(['cmake', self.sourceFolder, '-DCMAKE_BUILD_TYPE='+self.config['buildType'],
  63                         '-DCMAKE_INSTALL_PREFIX='+self.config['installDir']]+self.config.get('cmakeParameters', []))
  64                 self.restoreEnv('PKG_CONFIG_PATH', oldPKGConfigPath)
  65                 self.restoreEnv('CMAKE_PREFIX_PATH', oldCMakePrefixPath)
  66                 self.restoreEnv('XDG_DATA_DIRS', oldXDGDataDirs)
  67                 self.restoreEnv('XDG_CONFIG_DIRS', oldXDGConfigDirs)
  68                 # if asked to do so, wait
  69                 if waitAfterConfig:
  70                         raw_input('Configuration done. Hit "Enter" to build the project. ')
  71                 # run compilation
  72                 jobs = int(self.config['jobs'])
  73                 subprocess.check_call(self.config.get('buildCmdPrefix', []) + ['make', '-j'+str(jobs)])
  74                 # run installation
  75                 subprocess.check_call(self.config.get('installCmdPrefix', []) + ['make', 'install', '-j'+str((jobs+1)/2)]) # jobs/2, rounded up
  76
  77 # if auto-debuild is available, provide a wrapper for it
  78 try:
  79         import auto_debuild
  80         class AutoDebuild:
  81                 def __init__(self, sourceFolder, buildFolder, config, vcs):
  82                         self.sourceFolder = os.path.abspath(sourceFolder)
  83                         self.buildFolder = os.path.abspath(buildFolder)
  84                         self.debFolder = os.path.abspath(config['debDir'])
  85                         self.config = config
  86                         self.vcs = vcs
  87
  88                 def build(self, reconfigure, waitAfterConfig): # reconfigure is ignored (we always do a reconfiguration)
  89                         # get version name
  90                         versionName = self.config['versionName'] if 'versionName' in self.config else self.vcs.version()
  91                         if versionName is None:
  92                                 raise Exception("VCS did not provide us with a proper version number, please provide one manually")
  93                         # create auto-debuild configuration
  94                         autoDebuildConfig = {
  95                                 'sourceName': self.config['name'],
  96                                 'buildSystem': self.config['buildSystem'],
  97                                 'debDir': self.debFolder,
  98                                 'buildDir': self.buildFolder,
  99                                 'name': self.config['debName'],
 100                                 'email': self.config['debEMail'],
 101                                 'parallelJobs': self.config['jobs'],
 102                                 'version': versionName,
 103                                 'waitAfterConfig': waitAfterConfig,
 104                         }
 105                         # copy some more optional configuration
 106                         for option in ('epoch', 'dbgPackage', 'section', 'withPython2', 'binarySkipFiles', 'binaryInstallFiles',
 107                                         'buildDepends', 'binaryDepends', 'binaryShims', 'binaryRecommends', 'binaryProvides', 'binaryConflicts', 'binaryBreaks',
 108                                         'binaryReplaces', 'binaryBreaksReplaces',
 109                                         'alternatives', 'cmakeParameters', 'automakeParameters'):
 110                                 if option in self.config:
 111                                         autoDebuildConfig[option] = self.config[option]
 112                         # create Debian files
 113                         os.chdir(self.sourceFolder)
 114                         if os.path.isdir('debian'): # clean previous build attempts
 115                                 shutil.rmtree('debian')
 116                         files = auto_debuild.createDebianFiles(autoDebuildConfig)
 117                         # build package(s)
 118                         auto_debuild.buildDebianPackage(autoDebuildConfig)
 119                         # install package(s)
 120                         if self.config.get('debInstall', True):
 121                                 subprocess.check_call(['sudo', 'dpkg', '--install'] + files)
 122
 123 except ImportError:
 124         #print "auto_debuild not found, disabling auto-debuild system"
 125         pass