module-tools.py

   1 #!/usr/bin/python -u
   2
   3 import sys, os
   4 import re
   5 import time
   6 from glob import glob
   7 from optparse import OptionParser
   8
   9 # HARDCODED NAME CHANGES
  10 #
  11 # Moving to git we decided to rename some of the repositories. Here is
  12 # a map of name changes applied in git repositories.
  13 RENAMED_SVN_MODULES = {
  14     "PLEWWW": "plewww",
  15     "PLCAPI": "plcapi"
  16     }
  17
  18 def svn_to_git_name(module):
  19     if RENAMED_SVN_MODULES.has_key(module):
  20         return RENAMED_SVN_MODULES[module]
  21     return module
  22
  23 def git_to_svn_name(module):
  24     for key in RENAMED_SVN_MODULES:
  25         if module == RENAMED_SVN_MODULES[key]:
  26             return key
  27     return module
  28
  29
  30 # e.g. other_choices = [ ('d','iff') , ('g','uess') ] - lowercase
  31 def prompt (question,default=True,other_choices=[],allow_outside=False):
  32     if not isinstance (other_choices,list):
  33         other_choices = [ other_choices ]
  34     chars = [ c for (c,rest) in other_choices ]
  35
  36     choices = []
  37     if 'y' not in chars:
  38         if default is True: choices.append('[y]')
  39         else : choices.append('y')
  40     if 'n' not in chars:
  41         if default is False: choices.append('[n]')
  42         else : choices.append('n')
  43
  44     for (char,choice) in other_choices:
  45         if default == char:
  46             choices.append("["+char+"]"+choice)
  47         else:
  48             choices.append("<"+char+">"+choice)
  49     try:
  50         answer=raw_input(question + " " + "/".join(choices) + " ? ")
  51         if not answer:
  52             return default
  53         answer=answer[0].lower()
  54         if answer == 'y':
  55             if 'y' in chars: return 'y'
  56             else: return True
  57         elif answer == 'n':
  58             if 'n' in chars: return 'n'
  59             else: return False
  60         elif other_choices:
  61             for (char,choice) in other_choices:
  62                 if answer == char:
  63                     return char
  64             if allow_outside:
  65                 return answer
  66         return prompt(question,default,other_choices)
  67     except:
  68         raise
  69
  70 def default_editor():
  71     try:
  72         editor = os.environ['EDITOR']
  73     except:
  74         editor = "emacs"
  75     return editor
  76
  77 ### fold long lines
  78 fold_length=132
  79
  80 def print_fold (line):
  81     while len(line) >= fold_length:
  82         print line[:fold_length],'\\'
  83         line=line[fold_length:]
  84     print line
  85
  86 class Command:
  87     def __init__ (self,command,options):
  88         self.command=command
  89         self.options=options
  90         self.tmp="/tmp/command-%d"%os.getpid()
  91
  92     def run (self):
  93         if self.options.dry_run:
  94             print 'dry_run',self.command
  95             return 0
  96         if self.options.verbose and self.options.mode not in Main.silent_modes:
  97             print '+',self.command
  98             sys.stdout.flush()
  99         return os.system(self.command)
 100
 101     def run_silent (self):
 102         if self.options.dry_run:
 103             print 'dry_run',self.command
 104             return 0
 105         if self.options.verbose:
 106             print '+',self.command,' .. ',
 107             sys.stdout.flush()
 108         retcod=os.system(self.command + " &> " + self.tmp)
 109         if retcod != 0:
 110             print "FAILED ! -- out+err below (command was %s)"%self.command
 111             os.system("cat " + self.tmp)
 112             print "FAILED ! -- end of quoted output"
 113         elif self.options.verbose:
 114             print "OK"
 115         os.unlink(self.tmp)
 116         return retcod
 117
 118     def run_fatal(self):
 119         if self.run_silent() !=0:
 120             raise Exception,"Command %s failed"%self.command
 121
 122     # returns stdout, like bash's $(mycommand)
 123     def output_of (self,with_stderr=False):
 124         if self.options.dry_run:
 125             print 'dry_run',self.command
 126             return 'dry_run output'
 127         tmp="/tmp/status-%d"%os.getpid()
 128         if self.options.debug:
 129             print '+',self.command,' .. ',
 130             sys.stdout.flush()
 131         command=self.command
 132         if with_stderr:
 133             command += " &> "
 134         else:
 135             command += " > "
 136         command += tmp
 137         os.system(command)
 138         result=file(tmp).read()
 139         os.unlink(tmp)
 140         if self.options.debug:
 141             print 'Done',
 142         return result
 143
 144
 145 class SvnRepository:
 146     type = "svn"
 147
 148     def __init__(self, path, options):
 149         self.path = path
 150         self.options = options
 151
 152     def name(self):
 153         return os.path.basename(self.path)
 154
 155     def url(self):
 156         out = Command("svn info %s" % self.path, self.options).output_of()
 157         for line in out.split('\n'):
 158             if line.startswith("URL:"):
 159                 return line.split()[1].strip()
 160
 161     def repo_root(self):
 162         out = Command("svn info %s" % self.path, self.options).output_of()
 163         for line in out.split('\n'):
 164             if line.startswith("Repository Root:"):
 165                 root = line.split()[2].strip()
 166                 return "%s/%s" % (root, self.name())
 167
 168     @classmethod
 169     def checkout(cls, remote, local, options, recursive=False):
 170         if recursive:
 171             svncommand = "svn co %s %s" % (remote, local)
 172         else:
 173             svncommand = "svn co -N %s %s" % (remote, local)
 174         Command("rm -rf %s" % local, options).run_silent()
 175         Command(svncommand, options).run_fatal()
 176
 177         return SvnRepository(local, options)
 178
 179     @classmethod
 180     def remote_exists(cls, remote):
 181         return os.system("svn list %s &> /dev/null" % remote) == 0
 182
 183     def tag_exists(self, tagname):
 184         url = "%s/tags/%s" % (self.repo_root(), tagname)
 185         return SvnRepository.remote_exists(url)
 186
 187     def update(self, subdir="", recursive=True):
 188         path = os.path.join(self.path, subdir)
 189         if recursive:
 190             svncommand = "svn up %s" % path
 191         else:
 192             svncommand = "svn up -N %s" % path
 193         Command(svncommand, self.options).run_fatal()
 194
 195     def commit(self, logfile):
 196         # add all new files to the repository
 197         Command("svn status %s | grep '^\?' | sed -e 's/? *//' | sed -e 's/ /\\ /g' | xargs svn add" %
 198                 self.path, self.options).output_of()
 199         Command("svn commit -F %s %s" % (logfile, self.path), self.options).run_fatal()
 200
 201     def to_branch(self, branch):
 202         remote = "%s/branches/%s" % (self.repo_root(), branch)
 203         SvnRepository.checkout(remote, self.path, self.options, recursive=True)
 204
 205     def to_tag(self, tag):
 206         remote = "%s/tags/%s" % (self.repo_root(), branch)
 207         SvnRepository.checkout(remote, self.path, self.options, recursive=True)
 208
 209     def tag(self, tagname, logfile):
 210         tag_url = "%s/tags/%s" % (self.repo_root(), tagname)
 211         self_url = self.url()
 212         Command("svn copy -F %s %s %s" % (logfile, self_url, tag_url), self.options).run_fatal()
 213
 214     def diff(self, f=""):
 215         if f:
 216             f = os.path.join(self.path, f)
 217         else:
 218             f = self.path
 219         return Command("svn diff %s" % f, self.options).output_of(True)
 220
 221     def diff_with_tag(self, tagname):
 222         tag_url = "%s/tags/%s" % (self.repo_root(), tagname)
 223         return Command("svn diff %s %s" % (tag_url, self.url()),
 224                        self.options).output_of(True)
 225
 226     def revert(self, f=""):
 227         if f:
 228             Command("svn revert %s" % os.path.join(self.path, f), self.options).run_fatal()
 229         else:
 230             # revert all
 231             Command("svn revert %s -R" % self.path, self.options).run_fatal()
 232             Command("svn status %s | grep '^\?' | sed -e 's/? *//' | sed -e 's/ /\\ /g' | xargs rm -rf " %
 233                     self.path, self.options).run_silent()
 234
 235     def is_clean(self):
 236         command="svn status %s" % self.path
 237         return len(Command(command,self.options).output_of(True)) == 0
 238
 239     def is_valid(self):
 240         return os.path.exists(os.path.join(self.path, ".svn"))
 241
 242
 243 class GitRepository:
 244     type = "git"
 245
 246     def __init__(self, path, options):
 247         self.path = path
 248         self.options = options
 249
 250     def name(self):
 251         return os.path.basename(self.path)
 252
 253     def url(self):
 254         self.repo_root()
 255
 256     def repo_root(self):
 257         c = Command("git remote show origin", self.options)
 258         out = self.__run_in_repo(c.output_of)
 259         for line in out.split('\n'):
 260             if line.strip().startswith("Fetch URL:"):
 261                 repo = line.split()[2]
 262
 263     @classmethod
 264     def checkout(cls, remote, local, options, depth=1):
 265         Command("rm -rf %s" % local, options).run_silent()
 266         Command("git clone --depth %d %s %s" % (depth, remote, local), options).run_fatal()
 267         return GitRepository(local, options)
 268
 269     @classmethod
 270     def remote_exists(cls, remote):
 271         return os.system("git --no-pager ls-remote %s &> /dev/null" % remote) == 0
 272
 273     def tag_exists(self, tagname):
 274         command = 'git tag -l | grep "^%s$"' % tagname
 275         c = Command(command, self.options)
 276         out = self.__run_in_repo(c.output_of, with_stderr=True)
 277         return len(out) > 0
 278
 279     def __run_in_repo(self, fun, *args, **kwargs):
 280         cwd = os.getcwd()
 281         os.chdir(self.path)
 282         ret = fun(*args, **kwargs)
 283         os.chdir(cwd)
 284         return ret
 285
 286     def __run_command_in_repo(self, command, ignore_errors=False):
 287         c = Command(command, self.options)
 288         if ignore_errors:
 289             return self.__run_in_repo(c.output_of)
 290         else:
 291             return self.__run_in_repo(c.run_fatal)
 292
 293     def update(self, subdir=None, recursive=None):
 294         self.__run_command_in_repo("git fetch --tags")
 295         self.__run_command_in_repo("git pull")
 296
 297     def to_branch(self, branch, remote=True):
 298         if remote:
 299             branch = "origin/%s" % branch
 300         return self.__run_command_in_repo("git checkout %s" % branch)
 301
 302     def to_tag(self, tag):
 303         return self.__run_command_in_repo("git checkout %s" % tag)
 304
 305     def tag(self, tagname, logfile):
 306         self.__run_command_in_repo("git tag %s -F %s" % (tagname, logfile))
 307         self.commit(logfile)
 308
 309     def diff(self, f=""):
 310         c = Command("git diff %s" % f, self.options)
 311         return self.__run_in_repo(c.output_of, with_stderr=True)
 312
 313     def diff_with_tag(self, tagname):
 314         c = Command("git diff %s" % tagname, self.options)
 315         return self.__run_in_repo(c.output_of, with_stderr=True)
 316
 317     def commit(self, logfile):
 318         self.__run_command_in_repo("git add .", ignore_errors=True)
 319         self.__run_command_in_repo("git add -u", ignore_errors=True)
 320         self.__run_command_in_repo("git commit -F  %s" % logfile, ignore_errors=True)
 321         self.__run_command_in_repo("git push")
 322         self.__run_command_in_repo("git push --tags")
 323
 324     def revert(self, f=""):
 325         if f:
 326             self.__run_command_in_repo("git checkout %s" % f)
 327         else:
 328             # revert all
 329             self.__run_command_in_repo("git --no-pager reset --hard")
 330             self.__run_command_in_repo("git --no-pager clean -f")
 331
 332     def is_clean(self):
 333         def check_commit():
 334             command="git status"
 335             s="nothing to commit (working directory clean)"
 336             return Command(command, self.options).output_of(True).find(s) >= 0
 337         return self.__run_in_repo(check_commit)
 338
 339     def is_valid(self):
 340         return os.path.exists(os.path.join(self.path, ".git"))
 341
 342
 343 class Repository:
 344     """ Generic repository """
 345     supported_repo_types = [SvnRepository, GitRepository]
 346
 347     def __init__(self, path, options):
 348         self.path = path
 349         self.options = options
 350         for repo in self.supported_repo_types:
 351             self.repo = repo(self.path, self.options)
 352             if self.repo.is_valid():
 353                 break
 354
 355     @classmethod
 356     def has_moved_to_git(cls, module, config):
 357         module = git_to_svn_name(module)
 358         ret = SvnRepository.remote_exists("%s/%s/aaaa-has-moved-to-git" % (config['svnpath'], module))
 359         if not ret:
 360             # check if the module is already in Git
 361             return GitRepository.remote_exists(Module.git_remote_dir(module))
 362         return ret
 363
 364
 365     @classmethod
 366     def remote_exists(cls, remote):
 367         for repo in Repository.supported_repo_types:
 368             if repo.remote_exists(remote):
 369                 return True
 370         return False
 371
 372     def __getattr__(self, attr):
 373         return getattr(self.repo, attr)
 374
 375
 376
 377 # support for tagged module is minimal, and is for the Build class only
 378 class Module:
 379
 380     svn_magic_line="--This line, and those below, will be ignored--"
 381     setting_tag_format = "Setting tag %s"
 382
 383     redirectors=[ # ('module_name_varname','name'),
 384                   ('module_version_varname','version'),
 385                   ('module_taglevel_varname','taglevel'), ]
 386
 387     # where to store user's config
 388     config_storage="CONFIG"
 389     #
 390     config={}
 391
 392     import commands
 393     configKeys=[ ('svnpath',"Enter your toplevel svnpath",
 394                   "svn+ssh://%s@svn.planet-lab.org/svn/"%commands.getoutput("id -un")),
 395                  ('gitserver', "Enter your git server's hostname", "git.onelab.eu"),
 396                  ('gituser', "Enter your user name (login name) on git server", commands.getoutput("id -un")),
 397                  ("build", "Enter the name of your build module","build"),
 398                  ('username',"Enter your firstname and lastname for changelogs",""),
 399                  ("email","Enter your email address for changelogs",""),
 400                  ]
 401
 402     @classmethod
 403     def prompt_config_option(cls, key, message, default):
 404         cls.config[key]=raw_input("%s [%s] : "%(message,default)).strip() or default
 405
 406     @classmethod
 407     def prompt_config (cls):
 408         for (key,message,default) in cls.configKeys:
 409             cls.config[key]=""
 410             while not cls.config[key]:
 411                 cls.prompt_config_option(key, message, default)
 412
 413
 414     # for parsing module spec name:branch
 415     matcher_branch_spec=re.compile("\A(?P<name>[\w\.-]+):(?P<branch>[\w\.-]+)\Z")
 416     # special form for tagged module - for Build
 417     matcher_tag_spec=re.compile("\A(?P<name>[\w-]+)@(?P<tagname>[\w\.-]+)\Z")
 418     # parsing specfiles
 419     matcher_rpm_define=re.compile("%(define|global)\s+(\S+)\s+(\S*)\s*")
 420
 421     def __init__ (self,module_spec,options):
 422         # parse module spec
 423         attempt=Module.matcher_branch_spec.match(module_spec)
 424         if attempt:
 425             self.name=attempt.group('name')
 426             self.branch=attempt.group('branch')
 427         else:
 428             attempt=Module.matcher_tag_spec.match(module_spec)
 429             if attempt:
 430                 self.name=attempt.group('name')
 431                 self.tagname=attempt.group('tagname')
 432             else:
 433                 self.name=module_spec
 434
 435         # when available prefer to use git module name internally
 436         self.name = svn_to_git_name(self.name)
 437
 438         self.options=options
 439         self.module_dir="%s/%s"%(options.workdir,self.name)
 440         self.repository = None
 441         self.build = None
 442
 443     def run (self,command):
 444         return Command(command,self.options).run()
 445     def run_fatal (self,command):
 446         return Command(command,self.options).run_fatal()
 447     def run_prompt (self,message,fun, *args):
 448         fun_msg = "%s(%s)" % (fun.func_name, ",".join(args))
 449         if not self.options.verbose:
 450             while True:
 451                 choice=prompt(message,True,('s','how'))
 452                 if choice is True:
 453                     fun(*args)
 454                     return
 455                 elif choice is False:
 456                     print 'About to run function:', fun_msg
 457         else:
 458             question=message+" - want to run function: " + fun_msg
 459             if prompt(question,True):
 460                 fun(*args)
 461
 462     def friendly_name (self):
 463         if hasattr(self,'branch'):
 464             return "%s:%s"%(self.name,self.branch)
 465         elif hasattr(self,'tagname'):
 466             return "%s@%s"%(self.name,self.tagname)
 467         else:
 468             return self.name
 469
 470     @classmethod
 471     def git_remote_dir (cls, name):
 472         return "%s@%s:/git/%s.git" % (cls.config['gituser'], cls.config['gitserver'], name)
 473
 474     @classmethod
 475     def svn_remote_dir (cls, name):
 476         name = git_to_svn_name(name)
 477         svn = cls.config['svnpath']
 478         if svn.endswith('/'):
 479             return "%s%s" % (svn, name)
 480         return "%s/%s" % (svn, name)
 481
 482     def svn_selected_remote(self):
 483         svn_name = git_to_svn_name(self.name)
 484         remote = self.svn_remote_dir(svn_name)
 485         if hasattr(self,'branch'):
 486             remote = "%s/branches/%s" % (remote, self.branch)
 487         elif hasattr(self,'tagname'):
 488             remote = "%s/tags/%s" % (remote, self.tagname)
 489         else:
 490             remote = "%s/trunk" % remote
 491         return remote
 492
 493     ####################
 494     @classmethod
 495     def init_homedir (cls, options):
 496         if options.verbose and options.mode not in Main.silent_modes:
 497             print 'Checking for', options.workdir
 498         storage="%s/%s"%(options.workdir, cls.config_storage)
 499         # sanity check. Either the topdir exists AND we have a config/storage
 500         # or topdir does not exist and we create it
 501         # to avoid people use their own daily svn repo
 502         if os.path.isdir(options.workdir) and not os.path.isfile(storage):
 503             print """The directory %s exists and has no CONFIG file
 504 If this is your regular working directory, please provide another one as the
 505 module-* commands need a fresh working dir. Make sure that you do not use
 506 that for other purposes than tagging""" % options.workdir
 507             sys.exit(1)
 508
 509         def checkout_build():
 510             print "Checking out build module..."
 511             remote = cls.git_remote_dir(cls.config['build'])
 512             local = os.path.join(options.workdir, cls.config['build'])
 513             GitRepository.checkout(remote, local, options, depth=1)
 514             print "OK"
 515
 516         def store_config():
 517             f=file(storage,"w")
 518             for (key,message,default) in Module.configKeys:
 519                 f.write("%s=%s\n"%(key,Module.config[key]))
 520             f.close()
 521             if options.debug:
 522                 print 'Stored',storage
 523                 Command("cat %s"%storage,options).run()
 524
 525         def read_config():
 526             # read config
 527             f=open(storage)
 528             for line in f.readlines():
 529                 (key,value)=re.compile("^(.+)=(.+)$").match(line).groups()
 530                 Module.config[key]=value
 531             f.close()
 532
 533         if not os.path.isdir (options.workdir):
 534             print "Cannot find",options.workdir,"let's create it"
 535             Command("mkdir -p %s" % options.workdir, options).run_silent()
 536             cls.prompt_config()
 537             checkout_build()
 538             store_config()
 539         else:
 540             read_config()
 541             # check missing config options
 542             old_layout = False
 543             for (key,message,default) in cls.configKeys:
 544                 if not Module.config.has_key(key):
 545                     print "Configuration changed for module-tools"
 546                     cls.prompt_config_option(key, message, default)
 547                     old_layout = True
 548
 549             if old_layout:
 550                 Command("rm -rf %s" % options.workdir, options).run_silent()
 551                 Command("mkdir -p %s" % options.workdir, options).run_silent()
 552                 checkout_build()
 553                 store_config()
 554
 555             build_dir = os.path.join(options.workdir, cls.config['build'])
 556             if not os.path.isdir(build_dir):
 557                 checkout_build()
 558             else:
 559                 build = Repository(build_dir, options)
 560                 if not build.is_clean():
 561                     print "build module needs a revert"
 562                     build.revert()
 563                     print "OK"
 564                 build.update()
 565
 566         if options.verbose and options.mode not in Main.silent_modes:
 567             print '******** Using config'
 568             for (key,message,default) in Module.configKeys:
 569                 print '\t',key,'=',Module.config[key]
 570
 571     def init_module_dir (self):
 572         if self.options.verbose:
 573             print 'Checking for',self.module_dir
 574
 575         if not os.path.isdir (self.module_dir):
 576             if Repository.has_moved_to_git(self.name, Module.config):
 577                 self.repository = GitRepository.checkout(self.git_remote_dir(self.name),
 578                                                          self.module_dir,
 579                                                          self.options)
 580             else:
 581                 remote = self.svn_selected_remote()
 582                 self.repository = SvnRepository.checkout(remote,
 583                                                          self.module_dir,
 584                                                          self.options, recursive=False)
 585
 586         self.repository = Repository(self.module_dir, self.options)
 587         if self.repository.type == "svn":
 588             # check if module has moved to git
 589             if Repository.has_moved_to_git(self.name, Module.config):
 590                 Command("rm -rf %s" % self.module_dir, self.options).run_silent()
 591                 self.init_module_dir()
 592             # check if we have the required branch/tag
 593             if self.repository.url() != self.svn_selected_remote():
 594                 Command("rm -rf %s" % self.module_dir, self.options).run_silent()
 595                 self.init_module_dir()
 596
 597         elif self.repository.type == "git":
 598             if hasattr(self,'branch'):
 599                 self.repository.to_branch(self.branch)
 600             elif hasattr(self,'tagname'):
 601                 self.repository.to_tag(self.tagname)
 602
 603         else:
 604             raise Exception, 'Cannot find %s - check module name'%self.module_dir
 605
 606
 607     def revert_module_dir (self):
 608         if self.options.fast_checks:
 609             if self.options.verbose: print 'Skipping revert of %s' % self.module_dir
 610             return
 611         if self.options.verbose:
 612             print 'Checking whether', self.module_dir, 'needs being reverted'
 613
 614         if not self.repository.is_clean():
 615             self.repository.revert()
 616
 617     def update_module_dir (self):
 618         if self.options.fast_checks:
 619             if self.options.verbose: print 'Skipping update of %s' % self.module_dir
 620             return
 621         if self.options.verbose:
 622             print 'Updating', self.module_dir
 623         self.repository.update()
 624
 625     def main_specname (self):
 626         attempt="%s/%s.spec"%(self.module_dir,self.name)
 627         if os.path.isfile (attempt):
 628             return attempt
 629         pattern1="%s/*.spec"%self.module_dir
 630         level1=glob(pattern1)
 631         if level1:
 632             return level1[0]
 633         pattern2="%s/*/*.spec"%self.module_dir
 634         level2=glob(pattern2)
 635
 636         if level2:
 637             return level2[0]
 638         raise Exception, 'Cannot guess specfile for module %s -- patterns were %s or %s'%(self.name,pattern1,pattern2)
 639
 640     def all_specnames (self):
 641         level1=glob("%s/*.spec" % self.module_dir)
 642         if level1: return level1
 643         level2=glob("%s/*/*.spec" % self.module_dir)
 644         return level2
 645
 646     def parse_spec (self, specfile, varnames):
 647         if self.options.verbose:
 648             print 'Parsing',specfile,
 649             for var in varnames:
 650                 print "[%s]"%var,
 651             print ""
 652         result={}
 653         f=open(specfile)
 654         for line in f.readlines():
 655             attempt=Module.matcher_rpm_define.match(line)
 656             if attempt:
 657                 (define,var,value)=attempt.groups()
 658                 if var in varnames:
 659                     result[var]=value
 660         f.close()
 661         if self.options.debug:
 662             print 'found',len(result),'keys'
 663             for (k,v) in result.iteritems():
 664                 print k,'=',v
 665         return result
 666
 667     # stores in self.module_name_varname the rpm variable to be used for the module's name
 668     # and the list of these names in self.varnames
 669     def spec_dict (self):
 670         specfile=self.main_specname()
 671         redirector_keys = [ varname for (varname,default) in Module.redirectors]
 672         redirect_dict = self.parse_spec(specfile,redirector_keys)
 673         if self.options.debug:
 674             print '1st pass parsing done, redirect_dict=',redirect_dict
 675         varnames=[]
 676         for (varname,default) in Module.redirectors:
 677             if redirect_dict.has_key(varname):
 678                 setattr(self,varname,redirect_dict[varname])
 679                 varnames += [redirect_dict[varname]]
 680             else:
 681                 setattr(self,varname,default)
 682                 varnames += [ default ]
 683         self.varnames = varnames
 684         result = self.parse_spec (specfile,self.varnames)
 685         if self.options.debug:
 686             print '2st pass parsing done, varnames=',varnames,'result=',result
 687         return result
 688
 689     def patch_spec_var (self, patch_dict,define_missing=False):
 690         for specfile in self.all_specnames():
 691             # record the keys that were changed
 692             changed = dict ( [ (x,False) for x in patch_dict.keys() ] )
 693             newspecfile=specfile+".new"
 694             if self.options.verbose:
 695                 print 'Patching',specfile,'for',patch_dict.keys()
 696             spec=open (specfile)
 697             new=open(newspecfile,"w")
 698
 699             for line in spec.readlines():
 700                 attempt=Module.matcher_rpm_define.match(line)
 701                 if attempt:
 702                     (define,var,value)=attempt.groups()
 703                     if var in patch_dict.keys():
 704                         if self.options.debug:
 705                             print 'rewriting %s as %s'%(var,patch_dict[var])
 706                         new.write('%%%s %s %s\n'%(define,var,patch_dict[var]))
 707                         changed[var]=True
 708                         continue
 709                 new.write(line)
 710             if define_missing:
 711                 for (key,was_changed) in changed.iteritems():
 712                     if not was_changed:
 713                         if self.options.debug:
 714                             print 'rewriting missing %s as %s'%(key,patch_dict[key])
 715                         new.write('\n%%define %s %s\n'%(key,patch_dict[key]))
 716             spec.close()
 717             new.close()
 718             os.rename(newspecfile,specfile)
 719
 720     # returns all lines until the magic line
 721     def unignored_lines (self, logfile):
 722         result=[]
 723         white_line_matcher = re.compile("\A\s*\Z")
 724         for logline in file(logfile).readlines():
 725             if logline.strip() == Module.svn_magic_line:
 726                 break
 727             elif white_line_matcher.match(logline):
 728                 continue
 729             else:
 730                 result.append(logline.strip()+'\n')
 731         return result
 732
 733     # creates a copy of the input with only the unignored lines
 734     def stripped_magic_line_filename (self, filein, fileout ,new_tag_name):
 735        f=file(fileout,'w')
 736        f.write(self.setting_tag_format%new_tag_name + '\n')
 737        for line in self.unignored_lines(filein):
 738            f.write(line)
 739        f.close()
 740
 741     def insert_changelog (self, logfile, oldtag, newtag):
 742         for specfile in self.all_specnames():
 743             newspecfile=specfile+".new"
 744             if self.options.verbose:
 745                 print 'Inserting changelog from %s into %s'%(logfile,specfile)
 746             spec=open (specfile)
 747             new=open(newspecfile,"w")
 748             for line in spec.readlines():
 749                 new.write(line)
 750                 if re.compile('%changelog').match(line):
 751                     dateformat="* %a %b %d %Y"
 752                     datepart=time.strftime(dateformat)
 753                     logpart="%s <%s> - %s"%(Module.config['username'],
 754                                                  Module.config['email'],
 755                                                  newtag)
 756                     new.write(datepart+" "+logpart+"\n")
 757                     for logline in self.unignored_lines(logfile):
 758                         new.write("- " + logline)
 759                     new.write("\n")
 760             spec.close()
 761             new.close()
 762             os.rename(newspecfile,specfile)
 763
 764     def show_dict (self, spec_dict):
 765         if self.options.verbose:
 766             for (k,v) in spec_dict.iteritems():
 767                 print k,'=',v
 768
 769     def last_tag (self, spec_dict):
 770         try:
 771             return "%s-%s" % (spec_dict[self.module_version_varname],
 772                               spec_dict[self.module_taglevel_varname])
 773         except KeyError,err:
 774             raise Exception,'Something is wrong with module %s, cannot determine %s - exiting'%(self.name,err)
 775
 776     def tag_name (self, spec_dict, old_svn_name=False):
 777         base_tag_name = self.name
 778         if old_svn_name:
 779             base_tag_name = git_to_svn_name(self.name)
 780         return "%s-%s" % (base_tag_name, self.last_tag(spec_dict))
 781
 782
 783 ##############################
 784     # using fine_grain means replacing only those instances that currently refer to this tag
 785     # otherwise, <module>-{SVNPATH,GITPATH} is replaced unconditionnally
 786     def patch_tags_file (self, tagsfile, oldname, newname,fine_grain=True):
 787         newtagsfile=tagsfile+".new"
 788         tags=open (tagsfile)
 789         new=open(newtagsfile,"w")
 790
 791         matches=0
 792         # fine-grain : replace those lines that refer to oldname
 793         if fine_grain:
 794             if self.options.verbose:
 795                 print 'Replacing %s into %s\n\tin %s .. '%(oldname,newname,tagsfile),
 796             matcher=re.compile("^(.*)%s(.*)"%oldname)
 797             for line in tags.readlines():
 798                 if not matcher.match(line):
 799                     new.write(line)
 800                 else:
 801                     (begin,end)=matcher.match(line).groups()
 802                     new.write(begin+newname+end+"\n")
 803                     matches += 1
 804         # brute-force : change uncommented lines that define <module>-SVNPATH
 805         else:
 806             if self.options.verbose:
 807                 print 'Searching for -SVNPATH or -GITPATH lines referring to /%s/\n\tin %s .. '%(self.name,tagsfile),
 808             pattern="\A\s*(?P<make_name>[^\s]+)-(SVNPATH|GITPATH)\s*(=|:=)\s*(?P<url_main>[^\s]+)/%s[^\s]+"\
 809                                           %(self.name)
 810             matcher_module=re.compile(pattern)
 811             for line in tags.readlines():
 812                 attempt=matcher_module.match(line)
 813                 if attempt:
 814                     if line.find("-GITPATH") >= 0:
 815                         modulepath = "%s-GITPATH"%(attempt.group('make_name'))
 816                         replacement = "%-32s:= %s/%s.git@%s\n"%(modulepath,attempt.group('url_main'),self.name,newname)
 817                     else:
 818                         modulepath = "%s-SVNPATH"%(attempt.group('make_name'))
 819                         replacement = "%-32s:= %s/%s/tags/%s\n"%(modulepath,attempt.group('url_main'),self.name,newname)
 820                     if self.options.verbose:
 821                         print ' ' + modulepath,
 822                     new.write(replacement)
 823                     matches += 1
 824                 else:
 825                     new.write(line)
 826         tags.close()
 827         new.close()
 828         os.rename(newtagsfile,tagsfile)
 829         if self.options.verbose: print "%d changes"%matches
 830         return matches
 831
 832     def check_tag(self, tagname, need_it=False, old_svn_tag_name=None):
 833         if self.options.verbose:
 834             print "Checking %s repository tag: %s - " % (self.repository.type, tagname),
 835
 836         found_tagname = tagname
 837         found = self.repository.tag_exists(tagname)
 838         if not found and old_svn_tag_name:
 839             if self.options.verbose:
 840                 print "KO"
 841                 print "Checking %s repository tag: %s - " % (self.repository.type, old_svn_tag_name),
 842             found = self.repository.tag_exists(old_svn_tag_name)
 843             if found:
 844                 found_tagname = old_svn_tag_name
 845
 846         if (found and need_it) or (not found and not need_it):
 847             if self.options.verbose:
 848                 print "OK",
 849                 if found: print "- found"
 850                 else: print "- not found"
 851         else:
 852             if self.options.verbose:
 853                 print "KO"
 854             if found:
 855                 raise Exception, "tag (%s) is already there" % tagname
 856             else:
 857                 raise Exception, "can not find required tag (%s)" % tagname
 858
 859         return found_tagname
 860
 861
 862 ##############################
 863     def do_tag (self):
 864         self.init_module_dir()
 865         self.revert_module_dir()
 866         self.update_module_dir()
 867         # parse specfile
 868         spec_dict = self.spec_dict()
 869         self.show_dict(spec_dict)
 870
 871         # side effects
 872         old_tag_name = self.tag_name(spec_dict)
 873         old_svn_tag_name = self.tag_name(spec_dict, old_svn_name=True)
 874
 875         if (self.options.new_version):
 876             # new version set on command line
 877             spec_dict[self.module_version_varname] = self.options.new_version
 878             spec_dict[self.module_taglevel_varname] = 0
 879         else:
 880             # increment taglevel
 881             new_taglevel = str ( int (spec_dict[self.module_taglevel_varname]) + 1)
 882             spec_dict[self.module_taglevel_varname] = new_taglevel
 883
 884         new_tag_name = self.tag_name(spec_dict)
 885
 886         # sanity check
 887         old_tag_name = self.check_tag(old_tag_name, need_it=True, old_svn_tag_name=old_svn_tag_name)
 888         new_tag_name = self.check_tag(new_tag_name, need_it=False)
 889
 890         # checking for diffs
 891         diff_output = self.repository.diff_with_tag(old_tag_name)
 892         if len(diff_output) == 0:
 893             if not prompt ("No pending difference in module %s, want to tag anyway"%self.name,False):
 894                 return
 895
 896         # side effect in trunk's specfile
 897         self.patch_spec_var(spec_dict)
 898
 899         # prepare changelog file
 900         # we use the standard subversion magic string (see svn_magic_line)
 901         # so we can provide useful information, such as version numbers and diff
 902         # in the same file
 903         changelog="/tmp/%s-%d.edit"%(self.name,os.getpid())
 904         changelog_svn="/tmp/%s-%d.svn"%(self.name,os.getpid())
 905         setting_tag_line=Module.setting_tag_format%new_tag_name
 906         file(changelog,"w").write("""
 907 %s
 908 %s
 909 Please write a changelog for this new tag in the section above
 910 """%(Module.svn_magic_line,setting_tag_line))
 911
 912         if not self.options.verbose or prompt('Want to see diffs while writing changelog',True):
 913             file(changelog,"a").write('DIFF=========\n' + diff_output)
 914
 915         if self.options.debug:
 916             prompt('Proceed ?')
 917
 918         # edit it
 919         self.run("%s %s"%(self.options.editor,changelog))
 920         # strip magic line in second file - looks like svn has changed its magic line with 1.6
 921         # so we do the job ourselves
 922         self.stripped_magic_line_filename(changelog,changelog_svn,new_tag_name)
 923         # insert changelog in spec
 924         if self.options.changelog:
 925             self.insert_changelog (changelog,old_tag_name,new_tag_name)
 926
 927         ## update build
 928         build_path = os.path.join(self.options.workdir,
 929                                   Module.config['build'])
 930         build = Repository(build_path, self.options)
 931         if self.options.build_branch:
 932             build.to_branch(self.options.build_branch)
 933         if not build.is_clean():
 934             build.revert()
 935
 936         tagsfiles=glob(build.path+"/*-tags*.mk")
 937         tagsdict=dict( [ (x,'todo') for x in tagsfiles ] )
 938         default_answer = 'y'
 939         tagsfiles.sort()
 940         while True:
 941             for tagsfile in tagsfiles:
 942                 status=tagsdict[tagsfile]
 943                 basename=os.path.basename(tagsfile)
 944                 print ".................... Dealing with %s"%basename
 945                 while tagsdict[tagsfile] == 'todo' :
 946                     choice = prompt ("insert %s in %s    "%(new_tag_name,basename),default_answer,
 947                                      [ ('y','es'), ('n', 'ext'), ('f','orce'),
 948                                        ('d','iff'), ('r','evert'), ('c', 'at'), ('h','elp') ] ,
 949                                      allow_outside=True)
 950                     if choice == 'y':
 951                         self.patch_tags_file(tagsfile,old_tag_name,new_tag_name,fine_grain=True)
 952                     elif choice == 'n':
 953                         print 'Done with %s'%os.path.basename(tagsfile)
 954                         tagsdict[tagsfile]='done'
 955                     elif choice == 'f':
 956                         self.patch_tags_file(tagsfile,old_tag_name,new_tag_name,fine_grain=False)
 957                     elif choice == 'd':
 958                         print build.diff(f=tagsfile)
 959                     elif choice == 'r':
 960                         build.revert(f=tagsfile)
 961                     elif choice == 'c':
 962                         self.run("cat %s"%tagsfile)
 963                     else:
 964                         name=self.name
 965                         print """y: change %(name)s-{SVNPATH,GITPATH} only if it currently refers to %(old_tag_name)s
 966 f: unconditionnally change any line that assigns %(name)s-SVNPATH to using %(new_tag_name)s
 967 d: show current diff for this tag file
 968 r: revert that tag file
 969 c: cat the current tag file
 970 n: move to next file"""%locals()
 971
 972             if prompt("Want to review changes on tags files",False):
 973                 tagsdict = dict ( [ (x, 'todo') for x in tagsfiles ] )
 974                 default_answer='d'
 975             else:
 976                 break
 977
 978         def diff_all_changes():
 979             print build.diff()
 980             print self.repository.diff()
 981
 982         def commit_all_changes(log):
 983             self.repository.commit(log)
 984             build.commit(log)
 985
 986         self.run_prompt("Review module and build", diff_all_changes)
 987         self.run_prompt("Commit module and build", commit_all_changes, changelog_svn)
 988         self.run_prompt("Create tag", self.repository.tag, new_tag_name, changelog_svn)
 989
 990         if self.options.debug:
 991             print 'Preserving',changelog,'and stripped',changelog_svn
 992         else:
 993             os.unlink(changelog)
 994             os.unlink(changelog_svn)
 995
 996
 997 ##############################
 998     def do_version (self):
 999         self.init_module_dir()
1000         self.revert_module_dir()
1001         self.update_module_dir()
1002         spec_dict = self.spec_dict()
1003         if self.options.www:
1004             self.html_store_title('Version for module %s (%s)' % (self.friendly_name(),
1005                                                                   self.last_tag(spec_dict)))
1006         for varname in self.varnames:
1007             if not spec_dict.has_key(varname):
1008                 self.html_print ('Could not find %%define for %s'%varname)
1009                 return
1010             else:
1011                 self.html_print ("%-16s %s"%(varname,spec_dict[varname]))
1012         if self.options.verbose:
1013             self.html_print ("%-16s %s"%('main specfile:',self.main_specname()))
1014             self.html_print ("%-16s %s"%('specfiles:',self.all_specnames()))
1015         self.html_print_end()
1016
1017
1018 ##############################
1019     def do_diff (self):
1020         self.init_module_dir()
1021         self.revert_module_dir()
1022         self.update_module_dir()
1023         spec_dict = self.spec_dict()
1024         self.show_dict(spec_dict)
1025
1026         # side effects
1027         tag_name = self.tag_name(spec_dict)
1028         old_svn_tag_name = self.tag_name(spec_dict, old_svn_name=True)
1029
1030         # sanity check
1031         tag_name = self.check_tag(tag_name, need_it=True, old_svn_tag_name=old_svn_tag_name)
1032
1033         if self.options.verbose:
1034             print 'Getting diff'
1035         diff_output = self.repository.diff_with_tag(tag_name)
1036
1037         if self.options.list:
1038             if diff_output:
1039                 print self.name
1040         else:
1041             thename=self.friendly_name()
1042             do_print=False
1043             if self.options.www and diff_output:
1044                 self.html_store_title("Diffs in module %s (%s) : %d chars"%(\
1045                         thename,self.last_tag(spec_dict),len(diff_output)))
1046
1047                 self.html_store_raw ('<p> &lt; (left) %s </p>' % tag_name)
1048                 self.html_store_raw ('<p> &gt; (right) %s </p>' % thename)
1049                 self.html_store_pre (diff_output)
1050             elif not self.options.www:
1051                 print 'x'*30,'module',thename
1052                 print 'x'*20,'<',tag_name
1053                 print 'x'*20,'>',thename
1054                 print diff_output
1055
1056 ##############################
1057     # store and restitute html fragments
1058     @staticmethod
1059     def html_href (url,text): return '<a href="%s">%s</a>'%(url,text)
1060
1061     @staticmethod
1062     def html_anchor (url,text): return '<a name="%s">%s</a>'%(url,text)
1063
1064     @staticmethod
1065     def html_quote (text):
1066         return text.replace('&','&#38;').replace('<','&lt;').replace('>','&gt;')
1067
1068     # only the fake error module has multiple titles
1069     def html_store_title (self, title):
1070         if not hasattr(self,'titles'): self.titles=[]
1071         self.titles.append(title)
1072
1073     def html_store_raw (self, html):
1074         if not hasattr(self,'body'): self.body=''
1075         self.body += html
1076
1077     def html_store_pre (self, text):
1078         if not hasattr(self,'body'): self.body=''
1079         self.body += '<pre>' + self.html_quote(text) + '</pre>'
1080
1081     def html_print (self, txt):
1082         if not self.options.www:
1083             print txt
1084         else:
1085             if not hasattr(self,'in_list') or not self.in_list:
1086                 self.html_store_raw('<ul>')
1087                 self.in_list=True
1088             self.html_store_raw('<li>'+txt+'</li>')
1089
1090     def html_print_end (self):
1091         if self.options.www:
1092             self.html_store_raw ('</ul>')
1093
1094     @staticmethod
1095     def html_dump_header(title):
1096         nowdate=time.strftime("%Y-%m-%d")
1097         nowtime=time.strftime("%H:%M (%Z)")
1098         print """<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1099 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
1100 <head>
1101 <title> %s </title>
1102 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
1103 <style type="text/css">
1104 body { font-family:georgia, serif; }
1105 h1 {font-size: large; }
1106 p.title {font-size: x-large; }
1107 span.error {text-weight:bold; color: red; }
1108 </style>
1109 </head>
1110 <body>
1111 <p class='title'> %s - status on %s at %s</p>
1112 <ul>
1113 """%(title,title,nowdate,nowtime)
1114
1115     @staticmethod
1116     def html_dump_middle():
1117         print "</ul>"
1118
1119     @staticmethod
1120     def html_dump_footer():
1121         print "</body></html"
1122
1123     def html_dump_toc(self):
1124         if hasattr(self,'titles'):
1125             for title in self.titles:
1126                 print '<li>',self.html_href ('#'+self.friendly_name(),title),'</li>'
1127
1128     def html_dump_body(self):
1129         if hasattr(self,'titles'):
1130             for title in self.titles:
1131                 print '<hr /><h1>',self.html_anchor(self.friendly_name(),title),'</h1>'
1132         if hasattr(self,'body'):
1133             print self.body
1134             print '<p class="top">',self.html_href('#','Back to top'),'</p>'
1135
1136
1137 ##############################
1138 class Main:
1139
1140     module_usage="""Usage: %prog [options] module_desc [ .. module_desc ]
1141
1142 module-tools : a set of tools to manage subversion tags and specfile
1143   requires the specfile to either
1144   * define *version* and *taglevel*
1145   OR alternatively
1146   * define redirection variables module_version_varname / module_taglevel_varname
1147 Trunk:
1148   by default, the trunk of modules is taken into account
1149   in this case, just mention the module name as <module_desc>
1150 Branches:
1151   if you wish to work on a branch rather than on the trunk,
1152   you can use something like e.g. Mom:2.1 as <module_desc>
1153 """
1154     release_usage="""Usage: %prog [options] tag1 .. tagn
1155   Extract release notes from the changes in specfiles between several build tags, latest first
1156   Examples:
1157       release-changelog 4.2-rc25 4.2-rc24 4.2-rc23 4.2-rc22
1158   You can refer to a (build) branch by prepending a colon, like in
1159       release-changelog :4.2 4.2-rc25
1160   You can refer to the build trunk by just mentioning 'trunk', e.g.
1161       release-changelog -t coblitz-tags.mk coblitz-2.01-rc6 trunk
1162 """
1163     common_usage="""More help:
1164   see http://svn.planet-lab.org/wiki/ModuleTools"""
1165
1166     modes={
1167         'list' : "displays a list of available tags or branches",
1168         'version' : "check latest specfile and print out details",
1169         'diff' : "show difference between module (trunk or branch) and latest tag",
1170         'tag'  : """increment taglevel in specfile, insert changelog in specfile,
1171                 create new tag and and monitor its adoption in build/*-tags*.mk""",
1172         'branch' : """create a branch for this module, from the latest tag on the trunk,
1173                   and change trunk's version number to reflect the new branch name;
1174                   you can specify the new branch name by using module:branch""",
1175         'sync' : """create a tag from the module
1176                 this is a last resort option, mostly for repairs""",
1177         'changelog' : """extract changelog between build tags
1178                 expected arguments are a list of tags""",
1179         }
1180
1181     silent_modes = ['list']
1182     release_modes = ['changelog']
1183
1184     @staticmethod
1185     def optparse_list (option, opt, value, parser):
1186         try:
1187             setattr(parser.values,option.dest,getattr(parser.values,option.dest)+value.split())
1188         except:
1189             setattr(parser.values,option.dest,value.split())
1190
1191     def run(self):
1192
1193         mode=None
1194         for function in Main.modes.keys():
1195             if sys.argv[0].find(function) >= 0:
1196                 mode = function
1197                 break
1198         if not mode:
1199             print "Unsupported command",sys.argv[0]
1200             print "Supported commands:" + " ".join(Main.modes.keys())
1201             sys.exit(1)
1202
1203         if mode not in Main.release_modes:
1204             usage = Main.module_usage
1205             usage += Main.common_usage
1206             usage += "\nmodule-%s : %s"%(mode,Main.modes[mode])
1207         else:
1208             usage = Main.release_usage
1209             usage += Main.common_usage
1210
1211         parser=OptionParser(usage=usage)
1212
1213         if mode == "tag" or mode == 'branch':
1214             parser.add_option("-s","--set-version",action="store",dest="new_version",default=None,
1215                               help="set new version and reset taglevel to 0")
1216         if mode == "tag" :
1217             parser.add_option("-c","--no-changelog", action="store_false", dest="changelog", default=True,
1218                               help="do not update changelog section in specfile when tagging")
1219             parser.add_option("-b","--build-branch", action="store", dest="build_branch", default=None,
1220                               help="specify a build branch; used for locating the *tags*.mk files where adoption is to take place")
1221         if mode == "tag" or mode == "sync" :
1222             parser.add_option("-e","--editor", action="store", dest="editor", default=default_editor(),
1223                               help="specify editor")
1224
1225         if mode in ["diff","version"] :
1226             parser.add_option("-W","--www", action="store", dest="www", default=False,
1227                               help="export diff in html format, e.g. -W trunk")
1228
1229         if mode == "diff" :
1230             parser.add_option("-l","--list", action="store_true", dest="list", default=False,
1231                               help="just list modules that exhibit differences")
1232
1233         default_modules_list=os.path.dirname(sys.argv[0])+"/modules.list"
1234         parser.add_option("-a","--all",action="store_true",dest="all_modules",default=False,
1235                           help="run on all modules as found in %s"%default_modules_list)
1236         parser.add_option("-f","--file",action="store",dest="modules_list",default=None,
1237                           help="run on all modules found in specified file")
1238         parser.add_option("-n","--dry-run",action="store_true",dest="dry_run",default=False,
1239                           help="dry run - shell commands are only displayed")
1240         parser.add_option("-t","--distrotags",action="callback",callback=Main.optparse_list, dest="distrotags",
1241                           default=[], nargs=1,type="string",
1242                           help="""specify distro-tags files, e.g. onelab-tags-4.2.mk
1243 -- can be set multiple times, or use quotes""")
1244
1245         parser.add_option("-w","--workdir", action="store", dest="workdir",
1246                           default="%s/%s"%(os.getenv("HOME"),"modules"),
1247                           help="""name for dedicated working dir - defaults to ~/modules
1248 ** THIS MUST NOT ** be your usual working directory""")
1249         parser.add_option("-F","--fast-checks",action="store_true",dest="fast_checks",default=False,
1250                           help="skip safety checks, such as svn updates -- use with care")
1251
1252         # default verbosity depending on function - temp
1253         verbose_modes= ['tag', 'sync', 'branch']
1254
1255         if mode not in verbose_modes:
1256             parser.add_option("-v","--verbose", action="store_true", dest="verbose", default=False,
1257                               help="run in verbose mode")
1258         else:
1259             parser.add_option("-q","--quiet", action="store_false", dest="verbose", default=True,
1260                               help="run in quiet (non-verbose) mode")
1261         (options, args) = parser.parse_args()
1262         options.mode=mode
1263         if not hasattr(options,'dry_run'):
1264             options.dry_run=False
1265         if not hasattr(options,'www'):
1266             options.www=False
1267         options.debug=False
1268
1269         ########## module-*
1270         if len(args) == 0:
1271             if options.all_modules:
1272                 options.modules_list=default_modules_list
1273             if options.modules_list:
1274                 args=Command("grep -v '#' %s"%options.modules_list,options).output_of().split()
1275             else:
1276                 parser.print_help()
1277                 sys.exit(1)
1278         Module.init_homedir(options)
1279
1280
1281         modules=[ Module(modname,options) for modname in args ]
1282         # hack: create a dummy Module to store errors/warnings
1283         error_module = Module('__errors__',options)
1284
1285         for module in modules:
1286             if len(args)>1 and mode not in Main.silent_modes:
1287                 if not options.www:
1288                     print '========================================',module.friendly_name()
1289             # call the method called do_<mode>
1290             method=Module.__dict__["do_%s"%mode]
1291             try:
1292                 method(module)
1293             except Exception,e:
1294                 if options.www:
1295                     title='<span class="error"> Skipping module %s - failure: %s </span>'%\
1296                         (module.friendly_name(), str(e))
1297                     error_module.html_store_title(title)
1298                 else:
1299                     import traceback
1300                     traceback.print_exc()
1301                     print 'Skipping module %s: '%modname,e
1302
1303         if options.www:
1304             if mode == "diff":
1305                 modetitle="Changes to tag in %s"%options.www
1306             elif mode == "version":
1307                 modetitle="Latest tags in %s"%options.www
1308             modules.append(error_module)
1309             error_module.html_dump_header(modetitle)
1310             for module in modules:
1311                 module.html_dump_toc()
1312             Module.html_dump_middle()
1313             for module in modules:
1314                 module.html_dump_body()
1315             Module.html_dump_footer()
1316
1317 ####################
1318 if __name__ == "__main__" :
1319     try:
1320         Main().run()
1321     except KeyboardInterrupt:
1322         print '\nBye'