auto_debuild.py

   1 #!/usr/bin/python
   2 import os, stat, time, subprocess, sys
   3 from collections import OrderedDict
   4
   5 # some utility functions
   6 def safeCall(args):
   7         res = ""
   8         for arg in args:
   9                 assert arg.find("'") < 0 # ' is not supported
  10                 if len(res): res += " "
  11                 res += "'"+arg+"'"
  12         return res
  13
  14 # abstract representation of rules file
  15 class RulesFile:
  16         def __init__(self):
  17                 self.env = {}
  18                 self.dh = []
  19                 self.rules = OrderedDict()
  20
  21         def env2str(self):
  22                 res = ""
  23                 for name in self.env: # we rely on the name being sane (i.e., no special characters)
  24                         val = self.env[name]
  25                         assert val.find("'") < 0 # ' is not supported
  26                         if len(res): res += " "
  27                         res += name+"='"+val+"'"
  28                 return res
  29
  30         def write(self, f):
  31                 print >>f, "#!/usr/bin/make -f"
  32                 print >>f, ""
  33                 print >>f, "%:"
  34                 print >>f, '\t'+self.env2str()+' dh $@ '+safeCall(self.dh)
  35                 for rule in self.rules:
  36                         print >>f, ""
  37                         print >>f, "override_dh_"+rule+":"
  38                         for line in self.rules[rule]:
  39                                 print >>f, "\t"+line
  40
  41 # build-system specific part of rules file
  42 def cmakeRules(config):
  43         buildDir = config.get('buildDir', 'build.dir') # "build" is not a good idea, as that's also the name of a target...
  44         srcDir = os.getcwd()
  45         r = RulesFile()
  46         r.dh += ["--buildsystem=cmake", "--builddirectory="+buildDir] # dh parameters
  47         r.rules['auto_configure'] = [
  48                 safeCall(["mkdir", "-p", buildDir]),
  49                 safeCall(["cd", buildDir]) + " && " +
  50                   safeCall(["cmake", srcDir, "-DCMAKE_INSTALL_PREFIX=/usr"] + config.get('cmakeParameters', []))
  51         ]
  52         r.rules['auto_clean'] = [safeCall(['rm', '-f', os.path.join(buildDir, 'CMakeCache.txt')])] # clean old cmake cache
  53         return r
  54
  55 def automakeRules(config):
  56         r = RulesFile()
  57         r.dh += ["--buildsystem=autoconf"]
  58         r.rules['auto_configure'] = [
  59                 'BUILD_TYPE=$$(dpkg-architecture -qDEB_BUILD_GNU_TYPE) && ' + # doing the expansion beforehand ensures that we cancel if it fails
  60                 'MULTIARCH=$$(dpkg-architecture -qDEB_BUILD_MULTIARCH) && '+
  61                         './configure --build=$$BUILD_TYPE '+ # do the escape manually here so we can use the variables (there's no user-controlled string in here anyway)
  62                         '--prefix=/usr --includedir=/usr/include --mandir=/usr/share/man --infodir=/usr/share/info '+
  63                         '--libdir=/usr/lib/$$MULTIARCH --libexecdir=/usr/lib/$$MULTIARCH '+
  64                         '--sysconfdir=/etc --localstatedir=/var '+
  65                         safeCall(config.get('automakeParameters', []))
  66         ]
  67         r.rules['auto_clean'] = ['rm -f config.status'] # do not re-use old configuration (no need for escaping here, obviously)
  68         return r
  69
  70 # utility functions
  71 def commandInBuildEnv(config, command):
  72         schroot = config.get('schroot')
  73         if schroot is not None: command = ['schroot', '-c', schroot, '--'] + command
  74         return command
  75
  76 def getArchitecture(config):
  77         cmd = commandInBuildEnv(config, ['dpkg-architecture', '-qDEB_BUILD_ARCH'])
  78         p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
  79         res = p.communicate()[0] # get only stdout
  80         if p.returncode != 0: raise Exception("Querying dpkg for the architecture failed")
  81         return res[0:len(res)-1] # chop of the \n at the end
  82
  83 def writeDependency(f, name, list):
  84         if len(list):
  85                 print >>f, name+": "+', '.join(list)
  86
  87 # actual work functions
  88 def createDebianFiles(config):
  89         sourceName = config['sourceName']
  90         binaryName = config.get('binaryName', sourceName+'-local')
  91         name = config.get('name', os.getlogin())
  92         email = config.get('email', os.getlogin()+'@'+os.uname()[1]) # user@hostname
  93         debDir = os.path.expanduser(config['debDir'])
  94         buildSystem = config['buildSystem']
  95         version = config['version']
  96         dbgPackage = config.get('dbgPackage', False)
  97         packageArchitecture = config.get('architecture', 'any')
  98         # we return the list of files generated, so we need to know the architecture
  99         arch = getArchitecture(config)
 100         files = []
 101         # create folders
 102         if not os.path.exists('debian'): os.mkdir('debian')
 103         if not os.path.exists('debian/source'): os.mkdir('debian/source')
 104         if not os.path.exists(debDir): os.mkdir(debDir)
 105         # source format file
 106         with open('debian/source/format', 'w') as f:
 107                 print >>f, "3.0 (native)"
 108         # compat file
 109         with open('debian/compat', 'w') as f:
 110                 print >>f, "9"
 111         # copyright file
 112         with open('debian/copyright', 'w') as f:
 113                 print >>f, "Auto-generated by auto-debuild, not suited for distribution"
 114         # changelog file
 115         with open('debian/changelog', 'w') as f:
 116                 print >>f, sourceName,"("+version+")","UNRELEASED; urgency=low"
 117                 print >>f, ""
 118                 print >>f, "  * Auto-generated by auto-debuild"
 119                 print >>f, ""
 120                 print >>f, " --",name,"<"+email+">  "+time.strftime('%a, %d %b %Y %H:%M:%S %z')
 121         # control file
 122         with open('debian/control', 'w') as f:
 123                 print >>f, "Source:",sourceName
 124                 print >>f, "Section:",config.get('section', 'misc')
 125                 print >>f, "Priority: extra"
 126                 print >>f, "Maintainer: %s <%s>" % (name, email)
 127                 writeDependency(f, 'Build-Depends', ["debhelper (>= 9)"] + config.get('buildDepends', []))
 128                 print >>f, "Standards-Version: 3.9.3"
 129                 print >>f, ""
 130                 print >>f, "Package:",binaryName
 131                 print >>f, "Architecture:",packageArchitecture
 132                 writeDependency(f, "Pre-Depends", ["${misc:Pre-Depends}"] + config.get('binaryPreDepends', []))
 133                 writeDependency(f, "Depends", ["${shlibs:Depends}", "${misc:Depends}"] + config.get('binaryDepends', []))
 134                 writeDependency(f, "Recommends", config.get('binaryRecommends', []))
 135                 writeDependency(f, "Provides", config.get('binaryProvides', [sourceName]))
 136                 print >>f, "Description:",sourceName,"(auto-debuild)"
 137                 print >>f, " Package auto-generated by auto-debuild."
 138                 files.append(os.path.join(debDir, "%s_%s_%s.deb" % (binaryName, version, arch)))
 139                 if dbgPackage:
 140                         print >>f, ""
 141                         print >>f, "Package:",binaryName+"-dbg"
 142                         print >>f, "Architecture:",packageArchitecture
 143                         writeDependency(f, "Depends", ["${misc:Depends}", binaryName+" (= ${binary:Version})"])
 144                         print >>f, "Description:",sourceName,"debug smbols (auto-debuild)"
 145                         print >>f, " Package containing debug symbols for "+sourceName+", auto-generated by auto-debuild."
 146                         files.append(os.path.join(debDir, "%s-dbg_%s_%s.deb" % (binaryName, version, arch)))
 147         # rules file: build system specific
 148         with open('debian/rules', 'w') as f:
 149                 # get rule file for build system: may only touch auto_config and auto_clean rules and the dh options
 150                 if buildSystem == 'cmake':
 151                         r = cmakeRules(config)
 152                 elif buildSystem == 'automake':
 153                         r = automakeRules(config)
 154                 else:
 155                         raise Exception("Invalid build system "+buildSystem)
 156                 # global rules
 157                 r.env["DEB_BUILD_OPTIONS"] = 'parallel=2'
 158                 if not dbgPackage:
 159                         # disable debug information
 160                         r.env["DEB_CFLAGS_APPEND"] = '-g0'
 161                         r.env["DEB_CXXFLAGS_APPEND"] = '-g0'
 162                 r.dh += ['--parallel']
 163                 r.rules['builddeb'] = [safeCall(['dh_builddeb', "--destdir="+debDir])] # passing this gobally to dh results in weird problems (like stuff being installed there, and not in the package...)
 164                 r.rules['auto_test'] = []
 165                 r.rules['auto_install'] = [safeCall(['dh_auto_install', '--destdir=debian/'+binaryName])] # install everything into the binary package
 166                 # for debug packages
 167                 if dbgPackage:
 168                         r.rules['strip'] = [safeCall(['dh_strip', '--dbg-package='+binaryName+"-dbg"])] # put debug files in appropriate package
 169                         r.rules['installdocs'] = [safeCall(['dh_installdocs', '--link-doc='+binaryName])] # make the doc folder of the dbg package a symlink
 170                 # dump it to a file
 171                 r.write(f)
 172         mode = os.stat('debian/rules').st_mode
 173         os.chmod('debian/rules', mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)
 174         # return list of files affected
 175         return files
 176
 177 def buildDebianPackage(config):
 178         commands = ['dpkg-checkbuilddeps', 'debian/rules clean', 'debian/rules build', 'fakeroot debian/rules binary', 'debian/rules clean']
 179         command = ['nice', 'bash', '-c', ' && '.join(commands)]
 180         subprocess.check_call(commandInBuildEnv(config, command))
 181
 182 # all at once
 183 def createAndInstall(config, overwriteCheck = False):
 184         # generate debian files
 185         files = createDebianFiles(config)
 186         # check if a file is overwritten
 187         if overwriteCheck:
 188                 for file in files:
 189                         if os.path.exists(file):
 190                                 if raw_input("Do you want to overwrite %s (y/N)? " % file).lower() != "y":
 191                                         sys.exit(1)
 192         # run compilation
 193         buildDebianPackage(config)
 194         # install files
 195         print "Installing created deb files..."
 196         subprocess.check_call(['sudo', 'dpkg', '--install'] + files)
 197
 198 # if we are called directly as script
 199 if __name__ == "__main__":
 200         # get config
 201         import imp
 202         config = imp.load_source('config', 'debian/auto-debuild.conf').__dict__
 203         os.remove('debian/auto-debuild.confc')
 204         # and go for it
 205         createAndInstall(config, overwriteCheck=True)