module-tools.py

   1 #!/usr/bin/python -u
   2
   3 subversion_id = "$Id$"
   4
   5 import sys, os, os.path
   6 import re
   7 import time
   8 from glob import glob
   9 from optparse import OptionParser
  10
  11 # e.g. other_choices = [ ('d','iff') , ('g','uess') ] - lowercase
  12 def prompt (question,default=True,other_choices=[],allow_outside=False):
  13     if not isinstance (other_choices,list):
  14         other_choices = [ other_choices ]
  15     chars = [ c for (c,rest) in other_choices ]
  16
  17     choices = []
  18     if 'y' not in chars:
  19         if default is True: choices.append('[y]')
  20         else : choices.append('y')
  21     if 'n' not in chars:
  22         if default is False: choices.append('[n]')
  23         else : choices.append('n')
  24
  25     for (char,choice) in other_choices:
  26         if default == char:
  27             choices.append("["+char+"]"+choice)
  28         else:
  29             choices.append("<"+char+">"+choice)
  30     try:
  31         answer=raw_input(question + " " + "/".join(choices) + " ? ")
  32         if not answer:
  33             return default
  34         answer=answer[0].lower()
  35         if answer == 'y':
  36             if 'y' in chars: return 'y'
  37             else: return True
  38         elif answer == 'n':
  39             if 'n' in chars: return 'n'
  40             else: return False
  41         elif other_choices:
  42             for (char,choice) in other_choices:
  43                 if answer == char:
  44                     return char
  45             if allow_outside:
  46                 return answer
  47         return prompt(question,default,other_choices)
  48     except:
  49         raise
  50
  51 def default_editor():
  52     try:
  53         editor = os.environ['EDITOR']
  54     except:
  55         editor = "emacs"
  56     return editor
  57
  58 ### fold long lines
  59 fold_length=132
  60
  61 def print_fold (line):
  62     while len(line) >= fold_length:
  63         print line[:fold_length],'\\'
  64         line=line[fold_length:]
  65     print line
  66
  67 class Command:
  68     def __init__ (self,command,options):
  69         self.command=command
  70         self.options=options
  71         self.tmp="/tmp/command-%d"%os.getpid()
  72
  73     def run (self):
  74         if self.options.dry_run:
  75             print 'dry_run',self.command
  76             return 0
  77         if self.options.verbose and self.options.mode not in Main.silent_modes:
  78             print '+',self.command
  79             sys.stdout.flush()
  80         return os.system(self.command)
  81
  82     def run_silent (self):
  83         if self.options.dry_run:
  84             print 'dry_run',self.command
  85             return 0
  86         if self.options.verbose:
  87             print '+',self.command,' .. ',
  88             sys.stdout.flush()
  89         retcod=os.system(self.command + " &> " + self.tmp)
  90         if retcod != 0:
  91             print "FAILED ! -- out+err below (command was %s)"%self.command
  92             os.system("cat " + self.tmp)
  93             print "FAILED ! -- end of quoted output"
  94         elif self.options.verbose:
  95             print "OK"
  96         os.unlink(self.tmp)
  97         return retcod
  98
  99     def run_fatal(self):
 100         if self.run_silent() !=0:
 101             raise Exception,"Command %s failed"%self.command
 102
 103     # returns stdout, like bash's $(mycommand)
 104     def output_of (self,with_stderr=False):
 105         if self.options.dry_run:
 106             print 'dry_run',self.command
 107             return 'dry_run output'
 108         tmp="/tmp/status-%d"%os.getpid()
 109         if self.options.debug:
 110             print '+',self.command,' .. ',
 111             sys.stdout.flush()
 112         command=self.command
 113         if with_stderr:
 114             command += " &> "
 115         else:
 116             command += " > "
 117         command += tmp
 118         os.system(command)
 119         result=file(tmp).read()
 120         os.unlink(tmp)
 121         if self.options.debug:
 122             print 'Done',
 123         return result
 124
 125 class Svnpath:
 126     def __init__(self,path,options):
 127         self.path=path
 128         self.options=options
 129
 130     def url_exists (self):
 131         return os.system("svn list %s &> /dev/null"%self.path) == 0
 132
 133     def dir_needs_revert (self):
 134         command="svn status %s"%self.path
 135         return len(Command(command,self.options).output_of(True)) != 0
 136     # turns out it's the same implem.
 137     def file_needs_commit (self):
 138         command="svn status %s"%self.path
 139         return len(Command(command,self.options).output_of(True)) != 0
 140
 141 # support for tagged module is minimal, and is for the Build class only
 142 class Module:
 143
 144     svn_magic_line="--This line, and those below, will be ignored--"
 145
 146     redirectors=[ # ('module_name_varname','name'),
 147                   ('module_version_varname','version'),
 148                   ('module_taglevel_varname','taglevel'), ]
 149
 150     # where to store user's config
 151     config_storage="CONFIG"
 152     #
 153     config={}
 154
 155     import commands
 156     configKeys=[ ('svnpath',"Enter your toplevel svnpath",
 157                   "svn+ssh://%s@svn.planet-lab.org/svn/"%commands.getoutput("id -un")),
 158                  ("build", "Enter the name of your build module","build"),
 159                  ('username',"Enter your firstname and lastname for changelogs",""),
 160                  ("email","Enter your email address for changelogs",""),
 161                  ]
 162
 163     @staticmethod
 164     def prompt_config ():
 165         for (key,message,default) in Module.configKeys:
 166             Module.config[key]=""
 167             while not Module.config[key]:
 168                 Module.config[key]=raw_input("%s [%s] : "%(message,default)).strip() or default
 169
 170
 171     # for parsing module spec name:branch
 172     matcher_branch_spec=re.compile("\A(?P<name>[\w-]+):(?P<branch>[\w\.-]+)\Z")
 173     # special form for tagged module - for Build
 174     matcher_tag_spec=re.compile("\A(?P<name>[\w-]+)@(?P<tagname>[\w\.-]+)\Z")
 175     # parsing specfiles
 176     matcher_rpm_define=re.compile("%(define|global)\s+(\S+)\s+(\S*)\s*")
 177
 178     def __init__ (self,module_spec,options):
 179         # parse module spec
 180         attempt=Module.matcher_branch_spec.match(module_spec)
 181         if attempt:
 182             self.name=attempt.group('name')
 183             self.branch=attempt.group('branch')
 184         else:
 185             attempt=Module.matcher_tag_spec.match(module_spec)
 186             if attempt:
 187                 self.name=attempt.group('name')
 188                 self.tagname=attempt.group('tagname')
 189             else:
 190                 self.name=module_spec
 191
 192         self.options=options
 193         self.module_dir="%s/%s"%(options.workdir,self.name)
 194
 195     def friendly_name (self):
 196         if hasattr(self,'branch'):
 197             return "%s:%s"%(self.name,self.branch)
 198         elif hasattr(self,'tagname'):
 199             return "%s@%s"%(self.name,self.tagname)
 200         else:
 201             return self.name
 202
 203     def edge_dir (self):
 204         if hasattr(self,'branch'):
 205             return "%s/branches/%s"%(self.module_dir,self.branch)
 206         elif hasattr(self,'tagname'):
 207             return "%s/tags/%s"%(self.module_dir,self.tagname)
 208         else:
 209             return "%s/trunk"%(self.module_dir)
 210
 211     def tags_dir (self):
 212         return "%s/tags"%(self.module_dir)
 213
 214     def run (self,command):
 215         return Command(command,self.options).run()
 216     def run_fatal (self,command):
 217         return Command(command,self.options).run_fatal()
 218     def run_prompt (self,message,command):
 219         if not self.options.verbose:
 220             while True:
 221                 choice=prompt(message,True,('s','how'))
 222                 if choice is True:
 223                     self.run(command)
 224                     return
 225                 elif choice is False:
 226                     return
 227                 else:
 228                     print 'About to run:',command
 229         else:
 230             question=message+" - want to run " + command
 231             if prompt(question,True):
 232                 self.run(command)
 233
 234     @staticmethod
 235     def init_homedir (options):
 236         topdir=options.workdir
 237         if options.verbose and options.mode not in Main.silent_modes:
 238             print 'Checking for',topdir
 239         storage="%s/%s"%(topdir,Module.config_storage)
 240         # sanity check. Either the topdir exists AND we have a config/storage
 241         # or topdir does not exist and we create it
 242         # to avoid people use their own daily svn repo
 243         if os.path.isdir(topdir) and not os.path.isfile(storage):
 244             print """The directory %s exists and has no CONFIG file
 245 If this is your regular working directory, please provide another one as the
 246 module-* commands need a fresh working dir. Make sure that you do not use
 247 that for other purposes than tagging"""%topdir
 248             sys.exit(1)
 249         if not os.path.isdir (topdir):
 250             print "Cannot find",topdir,"let's create it"
 251             Module.prompt_config()
 252             print "Checking ...",
 253             Command("svn co -N %s %s"%(Module.config['svnpath'],topdir),options).run_fatal()
 254             Command("svn co -N %s/%s %s/%s"%(Module.config['svnpath'],
 255                                              Module.config['build'],
 256                                              topdir,
 257                                              Module.config['build']),options).run_fatal()
 258             print "OK"
 259
 260             # store config
 261             f=file(storage,"w")
 262             for (key,message,default) in Module.configKeys:
 263                 f.write("%s=%s\n"%(key,Module.config[key]))
 264             f.close()
 265             if options.debug:
 266                 print 'Stored',storage
 267                 Command("cat %s"%storage,options).run()
 268         else:
 269             # read config
 270             f=open(storage)
 271             for line in f.readlines():
 272                 (key,value)=re.compile("^(.+)=(.+)$").match(line).groups()
 273                 Module.config[key]=value
 274             f.close()
 275         if options.verbose and options.mode not in Main.silent_modes:
 276             print '******** Using config'
 277             for (key,message,default) in Module.configKeys:
 278                 print '\t',key,'=',Module.config[key]
 279
 280     def init_module_dir (self):
 281         if self.options.verbose:
 282             print 'Checking for',self.module_dir
 283         if not os.path.isdir (self.module_dir):
 284             self.run_fatal("svn update -N %s"%self.module_dir)
 285         if not os.path.isdir (self.module_dir):
 286             raise Exception, 'Cannot find %s - check module name'%self.module_dir
 287
 288     def init_subdir (self,fullpath):
 289         if self.options.verbose:
 290             print 'Checking for',fullpath
 291         if not os.path.isdir (fullpath):
 292             self.run_fatal("svn update -N %s"%fullpath)
 293
 294     def revert_subdir (self,fullpath):
 295         if self.options.fast_checks:
 296             if self.options.verbose: print 'Skipping revert of %s'%fullpath
 297             return
 298         if self.options.verbose:
 299             print 'Checking whether',fullpath,'needs being reverted'
 300         if Svnpath(fullpath,self.options).dir_needs_revert():
 301             self.run_fatal("svn revert -R %s"%fullpath)
 302
 303     def update_subdir (self,fullpath):
 304         if self.options.fast_checks:
 305             if self.options.verbose: print 'Skipping update of %s'%fullpath
 306             return
 307         if self.options.verbose:
 308             print 'Updating',fullpath
 309         self.run_fatal("svn update -N %s"%fullpath)
 310
 311     def init_edge_dir (self):
 312         # if branch, edge_dir is two steps down
 313         if hasattr(self,'branch'):
 314             self.init_subdir("%s/branches"%self.module_dir)
 315         elif hasattr(self,'tagname'):
 316             self.init_subdir("%s/tags"%self.module_dir)
 317         self.init_subdir(self.edge_dir())
 318
 319     def revert_edge_dir (self):
 320         self.revert_subdir(self.edge_dir())
 321
 322     def update_edge_dir (self):
 323         self.update_subdir(self.edge_dir())
 324
 325     def main_specname (self):
 326         attempt="%s/%s.spec"%(self.edge_dir(),self.name)
 327         if os.path.isfile (attempt):
 328             return attempt
 329         else:
 330             try:
 331                 return glob("%s/*.spec"%self.edge_dir())[0]
 332             except:
 333                 raise Exception, 'Cannot guess specfile for module %s'%self.name
 334
 335     def all_specnames (self):
 336         return glob("%s/*.spec"%self.edge_dir())
 337
 338     def parse_spec (self, specfile, varnames):
 339         if self.options.verbose:
 340             print 'Parsing',specfile,
 341             for var in varnames:
 342                 print "[%s]"%var,
 343             print ""
 344         result={}
 345         f=open(specfile)
 346         for line in f.readlines():
 347             attempt=Module.matcher_rpm_define.match(line)
 348             if attempt:
 349                 (define,var,value)=attempt.groups()
 350                 if var in varnames:
 351                     result[var]=value
 352         f.close()
 353         if self.options.debug:
 354             print 'found',len(result),'keys'
 355             for (k,v) in result.iteritems():
 356                 print k,'=',v
 357         return result
 358
 359     # stores in self.module_name_varname the rpm variable to be used for the module's name
 360     # and the list of these names in self.varnames
 361     def spec_dict (self):
 362         specfile=self.main_specname()
 363         redirector_keys = [ varname for (varname,default) in Module.redirectors]
 364         redirect_dict = self.parse_spec(specfile,redirector_keys)
 365         if self.options.debug:
 366             print '1st pass parsing done, redirect_dict=',redirect_dict
 367         varnames=[]
 368         for (varname,default) in Module.redirectors:
 369             if redirect_dict.has_key(varname):
 370                 setattr(self,varname,redirect_dict[varname])
 371                 varnames += [redirect_dict[varname]]
 372             else:
 373                 setattr(self,varname,default)
 374                 varnames += [ default ]
 375         self.varnames = varnames
 376         result = self.parse_spec (specfile,self.varnames)
 377         if self.options.debug:
 378             print '2st pass parsing done, varnames=',varnames,'result=',result
 379         return result
 380
 381     def patch_spec_var (self, patch_dict,define_missing=False):
 382         for specfile in self.all_specnames():
 383             # record the keys that were changed
 384             changed = dict ( [ (x,False) for x in patch_dict.keys() ] )
 385             newspecfile=specfile+".new"
 386             if self.options.verbose:
 387                 print 'Patching',specfile,'for',patch_dict.keys()
 388             spec=open (specfile)
 389             new=open(newspecfile,"w")
 390
 391             for line in spec.readlines():
 392                 attempt=Module.matcher_rpm_define.match(line)
 393                 if attempt:
 394                     (define,var,value)=attempt.groups()
 395                     if var in patch_dict.keys():
 396                         if self.options.debug:
 397                             print 'rewriting %s as %s'%(var,patch_dict[var])
 398                         new.write('%%%s %s %s\n'%(define,var,patch_dict[var]))
 399                         changed[var]=True
 400                         continue
 401                 new.write(line)
 402             if define_missing:
 403                 for (key,was_changed) in changed.iteritems():
 404                     if not was_changed:
 405                         if self.options.debug:
 406                             print 'rewriting missing %s as %s'%(key,patch_dict[key])
 407                         new.write('\n%%define %s %s\n'%(key,patch_dict[key]))
 408             spec.close()
 409             new.close()
 410             os.rename(newspecfile,specfile)
 411
 412     def unignored_lines (self, logfile):
 413         result=[]
 414         exclude="Tagging module %s"%self.name
 415         white_line_matcher = re.compile("\A\s*\Z")
 416         for logline in file(logfile).readlines():
 417             if logline.strip() == Module.svn_magic_line:
 418                 break
 419             if logline.find(exclude) >= 0:
 420                 continue
 421             elif white_line_matcher.match(logline):
 422                 continue
 423             else:
 424                 result.append(logline.strip()+'\n')
 425         return result
 426
 427     def insert_changelog (self, logfile, oldtag, newtag):
 428         for specfile in self.all_specnames():
 429             newspecfile=specfile+".new"
 430             if self.options.verbose:
 431                 print 'Inserting changelog from %s into %s'%(logfile,specfile)
 432             spec=open (specfile)
 433             new=open(newspecfile,"w")
 434             for line in spec.readlines():
 435                 new.write(line)
 436                 if re.compile('%changelog').match(line):
 437                     dateformat="* %a %b %d %Y"
 438                     datepart=time.strftime(dateformat)
 439                     logpart="%s <%s> - %s"%(Module.config['username'],
 440                                                  Module.config['email'],
 441                                                  newtag)
 442                     new.write(datepart+" "+logpart+"\n")
 443                     for logline in self.unignored_lines(logfile):
 444                         new.write("- " + logline)
 445                     new.write("\n")
 446             spec.close()
 447             new.close()
 448             os.rename(newspecfile,specfile)
 449
 450     def show_dict (self, spec_dict):
 451         if self.options.verbose:
 452             for (k,v) in spec_dict.iteritems():
 453                 print k,'=',v
 454
 455     def mod_url (self):
 456         return "%s/%s"%(Module.config['svnpath'],self.name)
 457
 458     def edge_url (self):
 459         if hasattr(self,'branch'):
 460             return "%s/branches/%s"%(self.mod_url(),self.branch)
 461         elif hasattr(self,'tagname'):
 462             return "%s/tags/%s"%(self.mod_url(),self.tagname)
 463         else:
 464             return "%s/trunk"%(self.mod_url())
 465
 466     def tag_name (self, spec_dict):
 467         try:
 468             return "%s-%s-%s"%(#spec_dict[self.module_name_varname],
 469                 self.name,
 470                 spec_dict[self.module_version_varname],
 471                 spec_dict[self.module_taglevel_varname])
 472         except KeyError,err:
 473             raise Exception, 'Something is wrong with module %s, cannot determine %s - exiting'%(self.name,err)
 474
 475     def tag_url (self, spec_dict):
 476         return "%s/tags/%s"%(self.mod_url(),self.tag_name(spec_dict))
 477
 478     def check_svnpath_exists (self, url, message):
 479         if self.options.fast_checks:
 480             return
 481         if self.options.verbose:
 482             print 'Checking url (%s) %s'%(url,message),
 483         ok=Svnpath(url,self.options).url_exists()
 484         if ok:
 485             if self.options.verbose: print 'exists - OK'
 486         else:
 487             if self.options.verbose: print 'KO'
 488             raise Exception, 'Could not find %s URL %s'%(message,url)
 489
 490     def check_svnpath_not_exists (self, url, message):
 491         if self.options.fast_checks:
 492             return
 493         if self.options.verbose:
 494             print 'Checking url (%s) %s'%(url,message),
 495         ok=not Svnpath(url,self.options).url_exists()
 496         if ok:
 497             if self.options.verbose: print 'does not exist - OK'
 498         else:
 499             if self.options.verbose: print 'KO'
 500             raise Exception, '%s URL %s already exists - exiting'%(message,url)
 501
 502     # locate specfile, parse it, check it and show values
 503
 504 ##############################
 505     def do_version (self):
 506         self.init_module_dir()
 507         self.init_edge_dir()
 508         self.revert_edge_dir()
 509         self.update_edge_dir()
 510         spec_dict = self.spec_dict()
 511         for varname in self.varnames:
 512             if not spec_dict.has_key(varname):
 513                 print 'Could not find %%define for %s'%varname
 514                 return
 515             else:
 516                 print "%-16s %s"%(varname,spec_dict[varname])
 517         if self.options.show_urls:
 518             print "%-16s %s"%('edge url',self.edge_url())
 519             print "%-16s %s"%('latest tag url',self.tag_url(spec_dict))
 520         if self.options.verbose:
 521             print "%-16s %s"%('main specfile:',self.main_specname())
 522             print "%-16s %s"%('specfiles:',self.all_specnames())
 523
 524 ##############################
 525     def do_list (self):
 526 #        print 'verbose',self.options.verbose
 527 #        print 'list_tags',self.options.list_tags
 528 #        print 'list_branches',self.options.list_branches
 529 #        print 'all_modules',self.options.all_modules
 530
 531         (verbose,branches,pattern,exact) = (self.options.verbose,self.options.list_branches,
 532                                             self.options.list_pattern,self.options.list_exact)
 533
 534         extra_command=""
 535         extra_message=""
 536         if hasattr(self,'branch'):
 537             pattern=self.branch
 538         if pattern or exact:
 539             if exact:
 540                 if verbose: grep="%s/$"%exact
 541                 else: grep="^%s$"%exact
 542             else:
 543                 grep=pattern
 544             extra_command=" | grep %s"%grep
 545             extra_message=" matching %s"%grep
 546
 547         if not branches:
 548             message="==================== tags for %s"%self.friendly_name()
 549             command="svn list "
 550             if verbose: command+="--verbose "
 551             command += "%s/tags"%self.mod_url()
 552             command += extra_command
 553             message += extra_message
 554             if verbose: print message
 555             self.run(command)
 556
 557         else:
 558             message="==================== branches for %s"%self.friendly_name()
 559             command="svn list "
 560             if verbose: command+="--verbose "
 561             command += "%s/branches"%self.mod_url()
 562             command += extra_command
 563             message += extra_message
 564             if verbose: print message
 565             self.run(command)
 566
 567 ##############################
 568     sync_warning="""*** WARNING
 569 The module-sync function has the following limitations
 570 * it does not handle changelogs
 571 * it does not scan the -tags*.mk files to adopt the new tags"""
 572
 573     def do_sync(self):
 574         if self.options.verbose:
 575             print Module.sync_warning
 576             if not prompt('Want to proceed anyway'):
 577                 return
 578
 579         self.init_module_dir()
 580         self.init_edge_dir()
 581         self.revert_edge_dir()
 582         self.update_edge_dir()
 583         spec_dict = self.spec_dict()
 584
 585         edge_url=self.edge_url()
 586         tag_name=self.tag_name(spec_dict)
 587         tag_url=self.tag_url(spec_dict)
 588         # check the tag does not exist yet
 589         self.check_svnpath_not_exists(tag_url,"new tag")
 590
 591         if self.options.message:
 592             svnopt='--message "%s"'%self.options.message
 593         else:
 594             svnopt='--editor-cmd=%s'%self.options.editor
 595         self.run_prompt("Create initial tag",
 596                         "svn copy %s %s %s"%(svnopt,edge_url,tag_url))
 597
 598 ##############################
 599     def do_diff (self,compute_only=False):
 600         self.init_module_dir()
 601         self.init_edge_dir()
 602         self.revert_edge_dir()
 603         self.update_edge_dir()
 604         spec_dict = self.spec_dict()
 605         self.show_dict(spec_dict)
 606
 607         edge_url=self.edge_url()
 608         tag_url=self.tag_url(spec_dict)
 609         self.check_svnpath_exists(edge_url,"edge track")
 610         self.check_svnpath_exists(tag_url,"latest tag")
 611         command="svn diff %s %s"%(tag_url,edge_url)
 612         if compute_only:
 613             if self.options.verbose:
 614                 print 'Getting diff with %s'%command
 615         diff_output = Command(command,self.options).output_of()
 616         # if used as a utility
 617         if compute_only:
 618             return (spec_dict,edge_url,tag_url,diff_output)
 619         # otherwise print the result
 620         if self.options.list:
 621             if diff_output:
 622                 print self.name
 623         else:
 624             if not self.options.only or diff_output:
 625                 print 'x'*30,'module',self.friendly_name()
 626                 print 'x'*20,'<',tag_url
 627                 print 'x'*20,'>',edge_url
 628                 print diff_output
 629
 630 ##############################
 631     # using fine_grain means replacing only those instances that currently refer to this tag
 632     # otherwise, <module>-SVNPATH is replaced unconditionnally
 633     def patch_tags_file (self, tagsfile, oldname, newname,fine_grain=True):
 634         newtagsfile=tagsfile+".new"
 635         tags=open (tagsfile)
 636         new=open(newtagsfile,"w")
 637
 638         matches=0
 639         # fine-grain : replace those lines that refer to oldname
 640         if fine_grain:
 641             if self.options.verbose:
 642                 print 'Replacing %s into %s\n\tin %s .. '%(oldname,newname,tagsfile),
 643             matcher=re.compile("^(.*)%s(.*)"%oldname)
 644             for line in tags.readlines():
 645                 if not matcher.match(line):
 646                     new.write(line)
 647                 else:
 648                     (begin,end)=matcher.match(line).groups()
 649                     new.write(begin+newname+end+"\n")
 650                     matches += 1
 651         # brute-force : change uncommented lines that define <module>-SVNPATH
 652         else:
 653             if self.options.verbose:
 654                 print 'Setting %s-SVNPATH for using %s\n\tin %s .. '%(self.name,newname,tagsfile),
 655             pattern="\A\s*%s-SVNPATH\s*(=|:=)\s*(?P<url_main>[^\s]+)/%s/[^\s]+"\
 656                                           %(self.name,self.name)
 657             matcher_module=re.compile(pattern)
 658             for line in tags.readlines():
 659                 attempt=matcher_module.match(line)
 660                 if attempt:
 661                     svnpath="%s-SVNPATH"%self.name
 662                     replacement = "%-32s:= %s/%s/tags/%s\n"%(svnpath,attempt.group('url_main'),self.name,newname)
 663                     new.write(replacement)
 664                     matches += 1
 665                 else:
 666                     new.write(line)
 667         tags.close()
 668         new.close()
 669         os.rename(newtagsfile,tagsfile)
 670         if self.options.verbose: print "%d changes"%matches
 671         return matches
 672
 673     def do_tag (self):
 674         self.init_module_dir()
 675         self.init_edge_dir()
 676         self.revert_edge_dir()
 677         self.update_edge_dir()
 678         # parse specfile
 679         spec_dict = self.spec_dict()
 680         self.show_dict(spec_dict)
 681
 682         # side effects
 683         edge_url=self.edge_url()
 684         old_tag_name = self.tag_name(spec_dict)
 685         old_tag_url=self.tag_url(spec_dict)
 686         if (self.options.new_version):
 687             # new version set on command line
 688             spec_dict[self.module_version_varname] = self.options.new_version
 689             spec_dict[self.module_taglevel_varname] = 0
 690         else:
 691             # increment taglevel
 692             new_taglevel = str ( int (spec_dict[self.module_taglevel_varname]) + 1)
 693             spec_dict[self.module_taglevel_varname] = new_taglevel
 694
 695         # sanity check
 696         new_tag_name = self.tag_name(spec_dict)
 697         new_tag_url=self.tag_url(spec_dict)
 698         self.check_svnpath_exists (edge_url,"edge track")
 699         self.check_svnpath_exists (old_tag_url,"previous tag")
 700         self.check_svnpath_not_exists (new_tag_url,"new tag")
 701
 702         # checking for diffs
 703         diff_output=Command("svn diff %s %s"%(old_tag_url,edge_url),
 704                             self.options).output_of()
 705         if len(diff_output) == 0:
 706             if not prompt ("No pending difference in module %s, want to tag anyway"%self.name,False):
 707                 return
 708
 709         # side effect in trunk's specfile
 710         self.patch_spec_var(spec_dict)
 711
 712         # prepare changelog file
 713         # we use the standard subversion magic string (see svn_magic_line)
 714         # so we can provide useful information, such as version numbers and diff
 715         # in the same file
 716         changelog="/tmp/%s-%d.txt"%(self.name,os.getpid())
 717         file(changelog,"w").write("""Tagging module %s - %s
 718
 719 %s
 720 Please write a changelog for this new tag in the section above
 721 """%(self.name,new_tag_name,Module.svn_magic_line))
 722
 723         if not self.options.verbose or prompt('Want to see diffs while writing changelog',True):
 724             file(changelog,"a").write('DIFF=========\n' + diff_output)
 725
 726         if self.options.debug:
 727             prompt('Proceed ?')
 728
 729         # edit it
 730         self.run("%s %s"%(self.options.editor,changelog))
 731         # insert changelog in spec
 732         if self.options.changelog:
 733             self.insert_changelog (changelog,old_tag_name,new_tag_name)
 734
 735         ## update build
 736         try:
 737             buildname=Module.config['build']
 738         except:
 739             buildname="build"
 740         if self.options.build_branch:
 741             buildname+=":"+self.options.build_branch
 742         build = Module(buildname,self.options)
 743         build.init_module_dir()
 744         build.init_edge_dir()
 745         build.revert_edge_dir()
 746         build.update_edge_dir()
 747
 748         tagsfiles=glob(build.edge_dir()+"/*-tags*.mk")
 749         tagsdict=dict( [ (x,'todo') for x in tagsfiles ] )
 750         default_answer = 'y'
 751         while True:
 752             for (tagsfile,status) in tagsdict.iteritems():
 753                 basename=os.path.basename(tagsfile)
 754                 print ".................... Dealing with %s"%basename
 755                 while tagsdict[tagsfile] == 'todo' :
 756                     choice = prompt ("insert %s in %s    "%(new_tag_name,basename),default_answer,
 757                                      [ ('y','es'), ('n', 'ext'), ('f','orce'),
 758                                        ('d','iff'), ('r','evert'), ('h','elp') ] ,
 759                                      allow_outside=True)
 760                     if choice == 'y':
 761                         self.patch_tags_file(tagsfile,old_tag_name,new_tag_name,fine_grain=True)
 762                     elif choice == 'n':
 763                         print 'Done with %s'%os.path.basename(tagsfile)
 764                         tagsdict[tagsfile]='done'
 765                     elif choice == 'f':
 766                         self.patch_tags_file(tagsfile,old_tag_name,new_tag_name,fine_grain=False)
 767                     elif choice == 'd':
 768                         self.run("svn diff %s"%tagsfile)
 769                     elif choice == 'r':
 770                         self.run("svn revert %s"%tagsfile)
 771                     else:
 772                         name=self.name
 773                         print """y: change %(name)s-SVNPATH only if it currently refers to %(old_tag_name)s
 774 f: unconditionnally change any line setting %(name)s-SVNPATH to using %(new_tag_name)s
 775 d: show current diff for this tag file
 776 r: revert that tag file
 777 n: move to next file"""%locals()
 778
 779             if prompt("Want to review changes on tags files",False):
 780                 tagsdict = dict ( [ (x, 'todo') for tagsfile in tagsfiles ] )
 781                 default_answer='d'
 782             else:
 783                 break
 784
 785         paths=""
 786         paths += self.edge_dir() + " "
 787         paths += build.edge_dir() + " "
 788         self.run_prompt("Review module and build","svn diff " + paths)
 789         self.run_prompt("Commit module and build","svn commit --file %s %s"%(changelog,paths))
 790         self.run_prompt("Create tag","svn copy --file %s %s %s"%(changelog,edge_url,new_tag_url))
 791
 792         if self.options.debug:
 793             print 'Preserving',changelog
 794         else:
 795             os.unlink(changelog)
 796
 797 ##############################
 798     def do_branch (self):
 799
 800         # save self.branch if any, as a hint for the new branch
 801         # do this before anything else and restore .branch to None,
 802         # as this is part of the class's logic
 803         new_trunk_name=None
 804         if self.branch:
 805             new_trunk_name=self.branch
 806             self.branch=None
 807
 808         # compute diff - a way to initialize the whole stuff
 809         # do_diff already does edge_dir initialization
 810         # and it checks that edge_url and tag_url exist as well
 811         (spec_dict,edge_url,tag_url,diff_listing) = self.do_diff(compute_only=True)
 812
 813         # the version name in the trunk becomes the new branch name
 814         branch_name = spec_dict[self.module_version_varname]
 815
 816         # figure new branch name (the one for the trunk) if not provided on the command line
 817         if not new_trunk_name:
 818             # heuristic is to assume 'version' is a dot-separated name
 819             # we isolate the rightmost part and try incrementing it by 1
 820             version=spec_dict[self.module_version_varname]
 821             try:
 822                 m=re.compile("\A(?P<leftpart>.+)\.(?P<rightmost>[^\.]+)\Z")
 823                 (leftpart,rightmost)=m.match(version).groups()
 824                 incremented = int(rightmost)+1
 825                 new_trunk_name="%s.%d"%(leftpart,incremented)
 826             except:
 827                 raise Exception, 'Cannot figure next branch name from %s - exiting'%version
 828
 829         # record starting point tagname
 830         latest_tag_name = self.tag_name(spec_dict)
 831
 832         print "**********"
 833         print "Using starting point %s (%s)"%(tag_url,latest_tag_name)
 834         print "Creating branch %s  &  moving trunk to %s"%(branch_name,new_trunk_name)
 835         print "**********"
 836
 837         # print warning if pending diffs
 838         if diff_listing:
 839             print """*** WARNING : Module %s has pending diffs on its trunk
 840 It is safe to proceed, but please note that branch %s
 841 will be based on latest tag %s and *not* on the current trunk"""%(self.name,branch_name,latest_tag_name)
 842             while True:
 843                 answer = prompt ('Are you sure you want to proceed with branching',True,('d','iff'))
 844                 if answer is True:
 845                     break
 846                 elif answer is False:
 847                     raise Exception,"User quit"
 848                 elif answer == 'd':
 849                     print '<<<< %s'%tag_url
 850                     print '>>>> %s'%edge_url
 851                     print diff_listing
 852
 853         branch_url = "%s/%s/branches/%s"%(Module.config['svnpath'],self.name,branch_name)
 854         self.check_svnpath_not_exists (branch_url,"new branch")
 855
 856         # patching trunk
 857         spec_dict[self.module_version_varname]=new_trunk_name
 858         spec_dict[self.module_taglevel_varname]='0'
 859         # remember this in the trunk for easy location of the current branch
 860         spec_dict['module_current_branch']=branch_name
 861         self.patch_spec_var(spec_dict,True)
 862
 863         # create commit log file
 864         tmp="/tmp/branching-%d"%os.getpid()
 865         f=open(tmp,"w")
 866         f.write("Branch %s for module %s created (as new trunk) from tag %s\n"%(new_trunk_name,self.name,latest_tag_name))
 867         f.close()
 868
 869         # we're done, let's commit the stuff
 870         command="svn diff %s"%self.edge_dir()
 871         self.run_prompt("Review changes in trunk",command)
 872         command="svn copy --file %s %s %s"%(tmp,self.edge_url(),branch_url)
 873         self.run_prompt("Create branch",command)
 874         command="svn commit --file %s %s"%(tmp,self.edge_dir())
 875         self.run_prompt("Commit trunk",command)
 876         new_tag_url=self.tag_url(spec_dict)
 877         command="svn copy --file %s %s %s"%(tmp,self.edge_url(),new_tag_url)
 878         self.run_prompt("Create initial tag in trunk",command)
 879         os.unlink(tmp)
 880
 881 ##############################
 882 class Package:
 883
 884     def __init__(self, package, module, svnpath, spec):
 885         self.package=package
 886         self.module=module
 887         self.svnpath=svnpath
 888         self.spec=spec
 889         self.specpath="%s/%s"%(svnpath,spec)
 890         self.basename=os.path.basename(svnpath)
 891
 892     # returns a http URL to the trac path where full diff can be viewed (between self and pkg)
 893     # typically http://svn.planet-lab.org/changeset?old_path=Monitor%2Ftags%2FMonitor-1.0-7&new_path=Monitor%2Ftags%2FMonitor-1.0-13
 894     # xxx quick & dirty: rough url parsing
 895     def trac_full_diff (self, pkg):
 896         matcher=re.compile("\A(?P<method>.*)://(?P<hostname>[^/]+)/(svn/)?(?P<path>.*)\Z")
 897         self_match=matcher.match(self.svnpath)
 898         pkg_match=matcher.match(pkg.svnpath)
 899         if self_match and pkg_match:
 900             (method,hostname,svn,path)=self_match.groups()
 901             self_path=path.replace("/","%2F")
 902             pkg_path=pkg_match.group('path').replace("/","%2F")
 903             return "%s://%s/changeset?old_path=%s&new_path=%s"%(method,hostname,self_path,pkg_path)
 904         else:
 905             return None
 906
 907     def details (self):
 908         return "[%s %s] [%s (spec)]"%(self.svnpath,self.basename,self.specpath)
 909
 910 class Build (Module):
 911
 912     def __init__ (self, buildtag,options):
 913         self.buildtag=buildtag
 914         Module.__init__(self,"build@%s"%buildtag,options)
 915
 916     # we cannot get build's svnpath as for other packages as we'd get something in svn+ssh
 917     # xxx quick & dirty
 918     def get_svnpath (self):
 919         self.svnpath="http://svn.planet-lab.org/svn/build/tags/%s"%self.buildtag
 920
 921     @staticmethod
 922     def get_distro_from_distrotag (distrotag):
 923         # mhh: remove -tag* from distrotags to get distro
 924         n=distrotag.find('-tag')
 925         if n>0:
 926             return distrotag[:n]
 927         else:
 928             return None
 929
 930     def get_packages (self,distrotag):
 931         result={}
 932         distro=Build.get_distro_from_distrotag(distrotag)
 933         if not distro:
 934             return result
 935         make_options="--no-print-directory -C %s stage1=true PLDISTRO=%s PLDISTROTAGS=%s 2> /dev/null"%(self.edge_dir(),distro,distrotag)
 936         command="make %s packages"%make_options
 937         make_packages=Command(command,self.options).output_of()
 938         pkg_line=re.compile("\Apackage=(?P<package>[^\s]+)\s+ref_module=(?P<module>[^\s]+)\s.*\Z")
 939         for line in make_packages.split("\n"):
 940             if not line:
 941                 continue
 942             attempt=pkg_line.match(line)
 943             if line and not attempt:
 944                 print "====="
 945                 print "WARNING: line not understood from make packages"
 946                 print "in dir %s"%self.edge_dir
 947                 print "with options",make_options
 948                 print 'line=',line
 949                 print "====="
 950             else:
 951                 (package,module) = (attempt.group('package'),attempt.group('module'))
 952                 command="make %s +%s-SVNPATH"%(make_options,module)
 953                 svnpath=Command(command,self.options).output_of().strip()
 954                 command="make %s +%s-SPEC"%(make_options,package)
 955                 spec=Command(command,self.options).output_of().strip()
 956                 result[package]=Package(package,module,svnpath,spec)
 957         return result
 958
 959     def get_distrotags (self):
 960         return [os.path.basename(p) for p in glob("%s/*tags*mk"%self.edge_dir())]
 961
 962 class DiffCache:
 963
 964     def __init__ (self):
 965         self._cache={}
 966
 967     def key(self, frompath,topath):
 968         return frompath+'-to-'+topath
 969
 970     def fetch (self, frompath, topath):
 971         key=self.key(frompath,topath)
 972         if not self._cache.has_key(key):
 973             return None
 974         return self._cache[key]
 975
 976     def store (self, frompath, topath, diff):
 977         key=self.key(frompath,topath)
 978         self._cache[key]=diff
 979
 980 class Release:
 981
 982     # header in diff output
 983     discard_matcher=re.compile("\A(\+\+\+|---).*")
 984
 985     @staticmethod
 986     def do_changelog (buildtag_new,buildtag_old,options):
 987         print "----"
 988         print "----"
 989         print "----"
 990         print "= build tag %s to %s = #build-%s"%(buildtag_old,buildtag_new,buildtag_new)
 991         (build_new,build_old) = (Build (buildtag_new,options), Build (buildtag_old,options))
 992         for b in (build_new,build_old):
 993             b.init_module_dir()
 994             b.init_edge_dir()
 995             b.update_edge_dir()
 996             b.get_svnpath()
 997         # find out the tags files that are common, unless option was specified
 998         if options.distrotags:
 999             distrotags=options.distrotags
1000         else:
1001             distrotags_new=build_new.get_distrotags()
1002             distrotags_old=build_old.get_distrotags()
1003             distrotags = list(set(distrotags_new).intersection(set(distrotags_old)))
1004             distrotags.sort()
1005         if options.verbose: print "Found distrotags",distrotags
1006         first_distrotag=True
1007         diffcache = DiffCache()
1008         for distrotag in distrotags:
1009             distro=Build.get_distro_from_distrotag(distrotag)
1010             if not distro:
1011                 continue
1012             if first_distrotag:
1013                 first_distrotag=False
1014             else:
1015                 print '----'
1016             print '== distro %s (%s to %s) == #distro-%s-%s'%(distrotag,buildtag_old,buildtag_new,distro,buildtag_new)
1017             print ' * from %s/%s'%(build_old.svnpath,distrotag)
1018             print ' * to %s/%s'%(build_new.svnpath,distrotag)
1019
1020             # parse make packages
1021             packages_new=build_new.get_packages(distrotag)
1022             pnames_new=set(packages_new.keys())
1023             if options.verbose: print 'got packages for ',buildtag_new
1024             packages_old=build_old.get_packages(distrotag)
1025             pnames_old=set(packages_old.keys())
1026             if options.verbose: print 'got packages for ',buildtag_old
1027
1028             # get created, deprecated, and preserved package names
1029             pnames_created = list(pnames_new-pnames_old)
1030             pnames_created.sort()
1031             pnames_deprecated = list(pnames_old-pnames_new)
1032             pnames_deprecated.sort()
1033             pnames = list(pnames_new.intersection(pnames_old))
1034             pnames.sort()
1035
1036             if options.verbose: print "Found new/deprecated/preserved pnames",pnames_new,pnames_deprecated,pnames
1037
1038             # display created and deprecated
1039             for name in pnames_created:
1040                 print '=== %s : new package %s -- appeared in %s === #package-%s-%s-%s'%(distrotag,name,buildtag_new,name,distro,buildtag_new)
1041                 pobj=packages_new[name]
1042                 print ' * %s'%pobj.details()
1043             for name in pnames_deprecated:
1044                 print '=== %s : package %s -- deprecated, last occurrence in %s === #package-%s-%s-%s'%(distrotag,name,buildtag_old,name,distro,buildtag_new)
1045                 pobj=packages_old[name]
1046                 if not pobj.svnpath:
1047                     print ' * codebase stored in CVS, specfile is %s'%pobj.spec
1048                 else:
1049                     print ' * %s'%pobj.details()
1050
1051             # display other packages
1052             for name in pnames:
1053                 (pobj_new,pobj_old)=(packages_new[name],packages_old[name])
1054                 if options.verbose: print "Dealing with package",name
1055                 if pobj_old.specpath == pobj_new.specpath:
1056                     continue
1057                 specdiff = diffcache.fetch(pobj_old.specpath,pobj_new.specpath)
1058                 if specdiff is None:
1059                     command="svn diff %s %s"%(pobj_old.specpath,pobj_new.specpath)
1060                     specdiff=Command(command,options).output_of()
1061                     diffcache.store(pobj_old.specpath,pobj_new.specpath,specdiff)
1062                 else:
1063                     if options.verbose: print 'got diff from cache'
1064                 if not specdiff:
1065                     continue
1066                 print '=== %s - %s to %s : package %s === #package-%s-%s-%s'%(distrotag,buildtag_old,buildtag_new,name,name,distro,buildtag_new)
1067                 print ' * from %s to %s'%(pobj_old.details(),pobj_new.details())
1068                 trac_diff_url=pobj_old.trac_full_diff(pobj_new)
1069                 if trac_diff_url:
1070                     print ' * [%s View full diff]'%trac_diff_url
1071                 print '{{{'
1072                 for line in specdiff.split('\n'):
1073                     if not line:
1074                         continue
1075                     if Release.discard_matcher.match(line):
1076                         continue
1077                     if line[0] in ['@']:
1078                         print '----------'
1079                     elif line[0] in ['+','-']:
1080                         print_fold(line)
1081                 print '}}}'
1082
1083 ##############################
1084 class Main:
1085
1086     module_usage="""Usage: %prog [options] module_desc [ .. module_desc ]
1087 module-tools : a set of tools to manage subversion tags and specfile
1088   requires the specfile to either
1089   * define *version* and *taglevel*
1090   OR alternatively
1091   * define redirection variables module_version_varname / module_taglevel_varname
1092 Trunk:
1093   by default, the trunk of modules is taken into account
1094   in this case, just mention the module name as <module_desc>
1095 Branches:
1096   if you wish to work on a branch rather than on the trunk,
1097   you can use something like e.g. Mom:2.1 as <module_desc>
1098 """
1099     release_usage="""Usage: %prog [options] tag1 .. tagn
1100   Extract release notes from the changes in specfiles between several build tags, latest first
1101 """
1102     common_usage="""More help:
1103   see http://svn.planet-lab.org/wiki/ModuleTools"""
1104
1105     modes={
1106         'list' : "displays a list of available tags or branches",
1107         'version' : "check latest specfile and print out details",
1108         'diff' : "show difference between module (trunk or branch) and latest tag",
1109         'tag'  : """increment taglevel in specfile, insert changelog in specfile,
1110                 create new tag and and monitor its adoption in build/*-tags*.mk""",
1111         'branch' : """create a branch for this module, from the latest tag on the trunk,
1112                   and change trunk's version number to reflect the new branch name;
1113                   you can specify the new branch name by using module:branch""",
1114         'sync' : """create a tag from the module
1115                 this is a last resort option, mostly for repairs""",
1116         'changelog' : """extract changelog between build tags
1117                 expected arguments are a list of tags""",
1118         }
1119
1120     silent_modes = ['list']
1121     release_modes = ['changelog']
1122
1123     @staticmethod
1124     def optparse_list (option, opt, value, parser):
1125         try:
1126             setattr(parser.values,option.dest,getattr(parser.values,option.dest)+value.split())
1127         except:
1128             setattr(parser.values,option.dest,value.split())
1129
1130     def run(self):
1131
1132         mode=None
1133         for function in Main.modes.keys():
1134             if sys.argv[0].find(function) >= 0:
1135                 mode = function
1136                 break
1137         if not mode:
1138             print "Unsupported command",sys.argv[0]
1139             print "Supported commands:" + Modes.modes.keys.join(" ")
1140             sys.exit(1)
1141
1142         if mode not in Main.release_modes:
1143             usage = Main.module_usage
1144             usage += Main.common_usage
1145             usage += "\nmodule-%s : %s"%(mode,Main.modes[mode])
1146         else:
1147             usage = Main.release_usage
1148             usage += Main.common_usage
1149
1150         parser=OptionParser(usage=usage,version=subversion_id)
1151
1152         if mode == 'list':
1153             parser.add_option("-b","--branches",action="store_true",dest="list_branches",default=False,
1154                               help="list branches")
1155             parser.add_option("-t","--tags",action="store_false",dest="list_branches",
1156                               help="list tags")
1157             parser.add_option("-m","--match",action="store",dest="list_pattern",default=None,
1158                                help="grep pattern for filtering output")
1159             parser.add_option("-x","--exact-match",action="store",dest="list_exact",default=None,
1160                                help="exact grep pattern for filtering output")
1161         if mode == "tag" or mode == 'branch':
1162             parser.add_option("-s","--set-version",action="store",dest="new_version",default=None,
1163                               help="set new version and reset taglevel to 0")
1164         if mode == "tag" :
1165             parser.add_option("-c","--no-changelog", action="store_false", dest="changelog", default=True,
1166                               help="do not update changelog section in specfile when tagging")
1167             parser.add_option("-b","--build-branch", action="store", dest="build_branch", default=None,
1168                               help="specify a build branch; used for locating the *tags*.mk files where adoption is to take place")
1169         if mode == "tag" or mode == "sync" :
1170             parser.add_option("-e","--editor", action="store", dest="editor", default=default_editor(),
1171                               help="specify editor")
1172         if mode == "sync" :
1173             parser.add_option("-m","--message", action="store", dest="message", default=None,
1174                               help="specify log message")
1175         if mode == "diff" :
1176             parser.add_option("-o","--only", action="store_true", dest="only", default=False,
1177                               help="report diff only for modules that exhibit differences")
1178         if mode == "diff" :
1179             parser.add_option("-l","--list", action="store_true", dest="list", default=False,
1180                               help="just list modules that exhibit differences")
1181
1182         if mode  == 'version':
1183             parser.add_option("-u","--url", action="store_true", dest="show_urls", default=False,
1184                               help="display URLs")
1185
1186         default_modules_list=os.path.dirname(sys.argv[0])+"/modules.list"
1187         if mode not in Main.release_modes:
1188             parser.add_option("-a","--all",action="store_true",dest="all_modules",default=False,
1189                               help="run on all modules as found in %s"%default_modules_list)
1190             parser.add_option("-f","--file",action="store",dest="modules_list",default=None,
1191                               help="run on all modules found in specified file")
1192         else:
1193             parser.add_option("-n","--dry-run",action="store_true",dest="dry_run",default=False,
1194                               help="dry run - shell commands are only displayed")
1195             parser.add_option("-t","--distrotags",action="callback",callback=Main.optparse_list, dest="distrotags",
1196                               default=[], nargs=1,type="string",
1197                               help="""specify distro-tags files, e.g. onelab-tags-4.2.mk
1198 -- can be set multiple times, or use quotes""")
1199
1200         parser.add_option("-w","--workdir", action="store", dest="workdir",
1201                           default="%s/%s"%(os.getenv("HOME"),"modules"),
1202                           help="""name for dedicated working dir - defaults to ~/modules
1203 ** THIS MUST NOT ** be your usual working directory""")
1204         parser.add_option("-F","--fast-checks",action="store_true",dest="fast_checks",default=False,
1205                           help="skip safety checks, such as svn updates -- use with care")
1206
1207         # default verbosity depending on function - temp
1208         verbose_modes= ['tag','sync']
1209
1210         if mode not in verbose_modes:
1211             parser.add_option("-v","--verbose", action="store_true", dest="verbose", default=False,
1212                               help="run in verbose mode")
1213         else:
1214             parser.add_option("-q","--quiet", action="store_false", dest="verbose", default=True,
1215                               help="run in quiet (non-verbose) mode")
1216 #        parser.add_option("-d","--debug", action="store_true", dest="debug", default=False,
1217 #                          help="debug mode - mostly more verbose")
1218         (options, args) = parser.parse_args()
1219         options.mode=mode
1220         if not hasattr(options,'dry_run'):
1221             options.dry_run=False
1222         options.debug=False
1223
1224         ########## release-*
1225         if mode in Main.release_modes :
1226             ########## changelog
1227             if len(args) <= 1:
1228                 parser.print_help()
1229                 sys.exit(1)
1230             Module.init_homedir(options)
1231             for n in range(len(args)-1):
1232                 [t_new,t_old]=args[n:n+2]
1233                 Release.do_changelog (t_new,t_old,options)
1234         else:
1235             ########## module-*
1236             if len(args) == 0:
1237                 if options.all_modules:
1238                     options.modules_list=default_modules_list
1239                 if options.modules_list:
1240                     args=Command("grep -v '#' %s"%options.modules_list,options).output_of().split()
1241                 else:
1242                     parser.print_help()
1243                     sys.exit(1)
1244             Module.init_homedir(options)
1245             for modname in args:
1246                 module=Module(modname,options)
1247                 if len(args)>1 and mode not in Main.silent_modes:
1248                     print '========================================',module.friendly_name()
1249                 # call the method called do_<mode>
1250                 method=Module.__dict__["do_%s"%mode]
1251                 try:
1252                     method(module)
1253                 except Exception,e:
1254                     print 'Skipping failed %s: '%modname,e
1255
1256 ####################
1257 if __name__ == "__main__" :
1258     try:
1259         Main().run()
1260     except KeyboardInterrupt:
1261         print '\nBye'