code.vuplus.com Git - vuplus_openembedded/blob - classes/patch.bbclass

   1 # Copyright (C) 2006  OpenedHand LTD
   2
   3 def patch_init(d):
   4         import os, sys
   5
   6         class NotFoundError(Exception):
   7                 def __init__(self, path):
   8                         self.path = path
   9                 def __str__(self):
  10                         return "Error: %s not found." % self.path
  11
  12         def md5sum(fname):
  13                 import md5, sys
  14
  15                 try:
  16                         f = file(fname, 'rb')
  17                 except IOError:
  18                         raise NotFoundError(fname)
  19
  20                 m = md5.new()
  21                 while True:
  22                         d = f.read(8096)
  23                         if not d:
  24                                 break
  25                         m.update(d)
  26                 f.close()
  27                 return m.hexdigest()
  28
  29         class CmdError(Exception):
  30                 def __init__(self, exitstatus, output):
  31                         self.status = exitstatus
  32                         self.output = output
  33
  34                 def __str__(self):
  35                         return "Command Error: exit status: %d  Output:\n%s" % (self.status, self.output)
  36
  37
  38         def runcmd(args, dir = None):
  39                 import commands
  40
  41                 if dir:
  42                         olddir = os.path.abspath(os.curdir)
  43                         if not os.path.exists(dir):
  44                                 raise NotFoundError(dir)
  45                         os.chdir(dir)
  46                         # print("cwd: %s -> %s" % (olddir, dir))
  47
  48                 try:
  49                         args = [ commands.mkarg(str(arg)) for arg in args ]
  50                         cmd = " ".join(args)
  51                         # print("cmd: %s" % cmd)
  52                         (exitstatus, output) = commands.getstatusoutput(cmd)
  53                         if exitstatus != 0:
  54                                 raise CmdError(exitstatus >> 8, output)
  55                         return output
  56
  57                 finally:
  58                         if dir:
  59                                 os.chdir(olddir)
  60
  61         class PatchError(Exception):
  62                 def __init__(self, msg):
  63                         self.msg = msg
  64
  65                 def __str__(self):
  66                         return "Patch Error: %s" % self.msg
  67
  68         import bb, bb.data, bb.fetch
  69
  70         class PatchSet(object):
  71                 defaults = {
  72                         "strippath": 1
  73                 }
  74
  75                 def __init__(self, dir, d):
  76                         self.dir = dir
  77                         self.d = d
  78                         self.patches = []
  79                         self._current = None
  80
  81                 def current(self):
  82                         return self._current
  83
  84                 def Clean(self):
  85                         """
  86                         Clean out the patch set.  Generally includes unapplying all
  87                         patches and wiping out all associated metadata.
  88                         """
  89                         raise NotImplementedError()
  90
  91                 def Import(self, patch, force):
  92                         if not patch.get("file"):
  93                                 if not patch.get("remote"):
  94                                         raise PatchError("Patch file must be specified in patch import.")
  95                                 else:
  96                                         patch["file"] = bb.fetch.localpath(patch["remote"], self.d)
  97
  98                         for param in PatchSet.defaults:
  99                                 if not patch.get(param):
 100                                         patch[param] = PatchSet.defaults[param]
 101
 102                         if patch.get("remote"):
 103                                 patch["file"] = bb.data.expand(bb.fetch.localpath(patch["remote"], self.d), self.d)
 104
 105                         patch["filemd5"] = md5sum(patch["file"])
 106
 107                 def Push(self, force):
 108                         raise NotImplementedError()
 109
 110                 def Pop(self, force):
 111                         raise NotImplementedError()
 112
 113                 def Refresh(self, remote = None, all = None):
 114                         raise NotImplementedError()
 115
 116
 117         class PatchTree(PatchSet):
 118                 def __init__(self, dir, d):
 119                         PatchSet.__init__(self, dir, d)
 120
 121                 def Import(self, patch, force = None):
 122                         """"""
 123                         PatchSet.Import(self, patch, force)
 124
 125                         if self._current is not None:
 126                                 i = self._current + 1
 127                         else:
 128                                 i = 0
 129                         self.patches.insert(i, patch)
 130
 131                 def _applypatch(self, patch, force = False, reverse = False, run = True):
 132                         shellcmd = ["cat", patch['file'], "|", "patch", "-p", patch['strippath']]
 133                         if reverse:
 134                                 shellcmd.append('-R')
 135
 136                         if not run:
 137                                 return "sh" + "-c" + " ".join(shellcmd)
 138
 139                         if not force:
 140                                 shellcmd.append('--dry-run')
 141
 142                         output = runcmd(["sh", "-c", " ".join(shellcmd)], self.dir)
 143
 144                         if force:
 145                                 return
 146
 147                         shellcmd.pop(len(shellcmd) - 1)
 148                         output = runcmd(["sh", "-c", " ".join(shellcmd)], self.dir)
 149                         return output
 150
 151                 def Push(self, force = False, all = False, run = True):
 152                         bb.note("self._current is %s" % self._current)
 153                         bb.note("patches is %s" % self.patches)
 154                         if all:
 155                                 for i in self.patches:
 156                                         if self._current is not None:
 157                                                 self._current = self._current + 1
 158                                         else:
 159                                                 self._current = 0
 160                                         bb.note("applying patch %s" % i)
 161                                         self._applypatch(i, force)
 162                         else:
 163                                 if self._current is not None:
 164                                         self._current = self._current + 1
 165                                 else:
 166                                         self._current = 0
 167                                 bb.note("applying patch %s" % self.patches[self._current])
 168                                 return self._applypatch(self.patches[self._current], force)
 169
 170
 171                 def Pop(self, force = None, all = None):
 172                         if all:
 173                                 for i in self.patches:
 174                                         self._applypatch(i, force, True)
 175                         else:
 176                                 self._applypatch(self.patches[self._current], force, True)
 177
 178                 def Clean(self):
 179                         """"""
 180
 181         class QuiltTree(PatchSet):
 182                 def _runcmd(self, args, run = True):
 183                         if not run:
 184                                 return ["quilt"] + args
 185                         runcmd(["quilt"] + args, self.dir)
 186
 187                 def _quiltpatchpath(self, file):
 188                         return os.path.join(self.dir, "patches", os.path.basename(file))
 189
 190
 191                 def __init__(self, dir, d):
 192                         PatchSet.__init__(self, dir, d)
 193                         self.initialized = False
 194                         p = os.path.join(self.dir, 'patches')
 195                         if not os.path.exists(p):
 196                                 os.makedirs(p)
 197
 198                 def Clean(self):
 199                         try:
 200                                 self._runcmd(["pop", "-a", "-f"])
 201                         except Exception:
 202                                 pass
 203                         self.initialized = True
 204
 205                 def InitFromDir(self):
 206                         # read series -> self.patches
 207                         seriespath = os.path.join(self.dir, 'patches', 'series')
 208                         if not os.path.exists(self.dir):
 209                                 raise Exception("Error: %s does not exist." % self.dir)
 210                         if os.path.exists(seriespath):
 211                                 series = file(seriespath, 'r')
 212                                 for line in series.readlines():
 213                                         patch = {}
 214                                         parts = line.strip().split()
 215                                         patch["quiltfile"] = self._quiltpatchpath(parts[0])
 216                                         patch["quiltfilemd5"] = md5sum(patch["quiltfile"])
 217                                         if len(parts) > 1:
 218                                                 patch["strippath"] = parts[1][2:]
 219                                         self.patches.append(patch)
 220                                 series.close()
 221
 222                                 # determine which patches are applied -> self._current
 223                                 try:
 224                                         output = runcmd(["quilt", "applied"], self.dir)
 225                                 except CmdError:
 226                                         if sys.exc_value.output.strip() == "No patches applied":
 227                                                 return
 228                                         else:
 229                                                 raise sys.exc_value
 230                                 output = [val for val in output.split('\n') if not val.startswith('#')]
 231                                 for patch in self.patches:
 232                                         if os.path.basename(patch["quiltfile"]) == output[-1]:
 233                                                 self._current = self.patches.index(patch)
 234                         self.initialized = True
 235
 236                 def Import(self, patch, force = None):
 237                         if not self.initialized:
 238                                 self.InitFromDir()
 239                         PatchSet.Import(self, patch, force)
 240
 241                         args = ["import", "-p", patch["strippath"]]
 242                         if force:
 243                                 args.append("-f")
 244                                 args.append("-dn")
 245                         args.append(patch["file"])
 246
 247                         self._runcmd(args)
 248
 249                         patch["quiltfile"] = self._quiltpatchpath(patch["file"])
 250                         patch["quiltfilemd5"] = md5sum(patch["quiltfile"])
 251
 252                         # TODO: determine if the file being imported:
 253                         #          1) is already imported, and is the same
 254                         #          2) is already imported, but differs
 255
 256                         self.patches.insert(self._current or 0, patch)
 257
 258
 259                 def Push(self, force = False, all = False, run = True):
 260                         # quilt push [-f]
 261
 262                         args = ["push"]
 263                         if force:
 264                                 args.append("-f")
 265                         if all:
 266                                 args.append("-a")
 267                         if not run:
 268                                 return self._runcmd(args, run)
 269
 270                         self._runcmd(args)
 271
 272                         if self._current is not None:
 273                                 self._current = self._current + 1
 274                         else:
 275                                 self._current = 0
 276
 277                 def Pop(self, force = None, all = None):
 278                         # quilt pop [-f]
 279                         args = ["pop"]
 280                         if force:
 281                                 args.append("-f")
 282                         if all:
 283                                 args.append("-a")
 284
 285                         self._runcmd(args)
 286
 287                         if self._current == 0:
 288                                 self._current = None
 289
 290                         if self._current is not None:
 291                                 self._current = self._current - 1
 292
 293                 def Refresh(self, **kwargs):
 294                         if kwargs.get("remote"):
 295                                 patch = self.patches[kwargs["patch"]]
 296                                 if not patch:
 297                                         raise PatchError("No patch found at index %s in patchset." % kwargs["patch"])
 298                                 (type, host, path, user, pswd, parm) = bb.decodeurl(patch["remote"])
 299                                 if type == "file":
 300                                         import shutil
 301                                         if not patch.get("file") and patch.get("remote"):
 302                                                 patch["file"] = bb.fetch.localpath(patch["remote"], self.d)
 303
 304                                         shutil.copyfile(patch["quiltfile"], patch["file"])
 305                                 else:
 306                                         raise PatchError("Unable to do a remote refresh of %s, unsupported remote url scheme %s." % (os.path.basename(patch["quiltfile"]), type))
 307                         else:
 308                                 # quilt refresh
 309                                 args = ["refresh"]
 310                                 if kwargs.get("quiltfile"):
 311                                         args.append(os.path.basename(kwargs["quiltfile"]))
 312                                 elif kwargs.get("patch"):
 313                                         args.append(os.path.basename(self.patches[kwargs["patch"]]["quiltfile"]))
 314                                 self._runcmd(args)
 315
 316         class Resolver(object):
 317                 def __init__(self, patchset):
 318                         raise NotImplementedError()
 319
 320                 def Resolve(self):
 321                         raise NotImplementedError()
 322
 323                 def Revert(self):
 324                         raise NotImplementedError()
 325
 326                 def Finalize(self):
 327                         raise NotImplementedError()
 328
 329         class NOOPResolver(Resolver):
 330                 def __init__(self, patchset):
 331                         self.patchset = patchset
 332
 333                 def Resolve(self):
 334                         olddir = os.path.abspath(os.curdir)
 335                         os.chdir(self.patchset.dir)
 336                         try:
 337                                 self.patchset.Push()
 338                         except Exception:
 339                                 os.chdir(olddir)
 340                                 raise sys.exc_value
 341
 342         # Patch resolver which relies on the user doing all the work involved in the
 343         # resolution, with the exception of refreshing the remote copy of the patch
 344         # files (the urls).
 345         class UserResolver(Resolver):
 346                 def __init__(self, patchset):
 347                         self.patchset = patchset
 348
 349                 # Force a push in the patchset, then drop to a shell for the user to
 350                 # resolve any rejected hunks
 351                 def Resolve(self):
 352
 353                         olddir = os.path.abspath(os.curdir)
 354                         os.chdir(self.patchset.dir)
 355                         try:
 356                                 self.patchset.Push(False)
 357                         except CmdError, v:
 358                                 # Patch application failed
 359                                 patchcmd = self.patchset.Push(True, False, False)
 360
 361                                 t = bb.data.getVar('T', d, 1)
 362                                 if not t:
 363                                         bb.msg.fatal(bb.msg.domain.Build, "T not set")
 364                                 bb.mkdirhier(t)
 365                                 import random
 366                                 rcfile = "%s/bashrc.%s.%s" % (t, str(os.getpid()), random.random())
 367                                 f = open(rcfile, "w")
 368                                 f.write("echo '*** Manual patch resolution mode ***'\n")
 369                                 f.write("echo 'Dropping to a shell, so patch rejects can be fixed manually.'\n")
 370                                 f.write("echo 'Run \"quilt refresh\" when patch is corrected, press CTRL+D to exit.'\n")
 371                                 f.write("echo ''\n")
 372                                 f.write(" ".join(patchcmd) + "\n")
 373                                 f.write("#" + bb.data.getVar('TERMCMDRUN', d, 1))
 374                                 f.close()
 375                                 os.chmod(rcfile, 0775)
 376
 377                                 os.environ['TERMWINDOWTITLE'] = "Bitbake: Please fix patch rejects manually"
 378                                 os.environ['TERMRCFILE'] = rcfile
 379                                 os.system(bb.data.getVar('TERMCMDRUN', d, 1))
 380
 381                                 # Construct a new PatchSet after the user's changes, compare the
 382                                 # sets, checking patches for modifications, and doing a remote
 383                                 # refresh on each.
 384                                 oldpatchset = self.patchset
 385                                 self.patchset = oldpatchset.__class__(self.patchset.dir, self.patchset.d)
 386
 387                                 for patch in self.patchset.patches:
 388                                         oldpatch = None
 389                                         for opatch in oldpatchset.patches:
 390                                                 if opatch["quiltfile"] == patch["quiltfile"]:
 391                                                         oldpatch = opatch
 392
 393                                         if oldpatch:
 394                                                 patch["remote"] = oldpatch["remote"]
 395                                                 if patch["quiltfile"] == oldpatch["quiltfile"]:
 396                                                         if patch["quiltfilemd5"] != oldpatch["quiltfilemd5"]:
 397                                                                 bb.note("Patch %s has changed, updating remote url %s" % (os.path.basename(patch["quiltfile"]), patch["remote"]))
 398                                                                 # user change?  remote refresh
 399                                                                 self.patchset.Refresh(remote=True, patch=self.patchset.patches.index(patch))
 400                                                         else:
 401                                                                 # User did not fix the problem.  Abort.
 402                                                                 raise PatchError("Patch application failed, and user did not fix and refresh the patch.")
 403                         except Exception:
 404                                 os.chdir(olddir)
 405                                 raise
 406                         os.chdir(olddir)
 407
 408         g = globals()
 409         g["PatchSet"] = PatchSet
 410         g["PatchTree"] = PatchTree
 411         g["QuiltTree"] = QuiltTree
 412         g["Resolver"] = Resolver
 413         g["UserResolver"] = UserResolver
 414         g["NOOPResolver"] = NOOPResolver
 415         g["NotFoundError"] = NotFoundError
 416         g["CmdError"] = CmdError
 417
 418 addtask patch after do_unpack
 419 do_patch[dirs] = "${WORKDIR}"
 420
 421 python () {
 422     import bb
 423     # do_patch tasks require PATCHTOOL-native to have staged
 424     patchdeps = bb.data.getVar("PATCHTOOL", d, True)
 425     if patchdeps:
 426         patchdeps = "%s-native" % patchdeps
 427         if not patchdeps in bb.data.getVar("PROVIDES", d, True):
 428             bb.data.setVarFlag('do_patch', 'depends', patchdeps + ":do_populate_staging", d)
 429 }
 430
 431 python patch_do_patch() {
 432         import re
 433         import bb.fetch
 434
 435         patch_init(d)
 436
 437         src_uri = (bb.data.getVar('SRC_URI', d, 1) or '').split()
 438         if not src_uri:
 439                 return
 440
 441         patchsetmap = {
 442                 "patch": PatchTree,
 443                 "quilt": QuiltTree,
 444         }
 445
 446         cls = patchsetmap[bb.data.getVar('PATCHTOOL', d, 1) or 'quilt']
 447
 448         resolvermap = {
 449                 "noop": NOOPResolver,
 450                 "user": UserResolver,
 451         }
 452
 453         rcls = resolvermap[bb.data.getVar('PATCHRESOLVE', d, 1) or 'user']
 454
 455         s = bb.data.getVar('S', d, 1)
 456
 457         path = os.getenv('PATH')
 458         os.putenv('PATH', bb.data.getVar('PATH', d, 1))
 459         patchset = cls(s, d)
 460         patchset.Clean()
 461
 462         resolver = rcls(patchset)
 463
 464         workdir = bb.data.getVar('WORKDIR', d, 1)
 465         for url in src_uri:
 466                 (type, host, path, user, pswd, parm) = bb.decodeurl(url)
 467                 if not "patch" in parm:
 468                         continue
 469
 470                 bb.fetch.init([url],d)
 471                 url = bb.encodeurl((type, host, path, user, pswd, []))
 472                 local = os.path.join('/', bb.fetch.localpath(url, d))
 473
 474                 # did it need to be unpacked?
 475                 dots = os.path.basename(local).split(".")
 476                 if dots[-1] in ['gz', 'bz2', 'Z']:
 477                         unpacked = os.path.join(bb.data.getVar('WORKDIR', d),'.'.join(dots[0:-1]))
 478                 else:
 479                         unpacked = local
 480                 unpacked = bb.data.expand(unpacked, d)
 481
 482                 if "pnum" in parm:
 483                         pnum = parm["pnum"]
 484                 else:
 485                         pnum = "1"
 486
 487                 if "pname" in parm:
 488                         pname = parm["pname"]
 489                 else:
 490                         pname = os.path.basename(unpacked)
 491
 492                 if "mindate" in parm:
 493                         mindate = parm["mindate"]
 494                 else:
 495                         mindate = 0
 496
 497                 if "maxdate" in parm:
 498                         maxdate = parm["maxdate"]
 499                 else:
 500                         maxdate = "20711226"
 501
 502                 pn = bb.data.getVar('PN', d, 1)
 503                 srcdate = bb.data.getVar('SRCDATE_%s' % pn, d, 1)
 504
 505                 if not srcdate:
 506                         srcdate = bb.data.getVar('SRCDATE', d, 1)
 507
 508                 if srcdate == "now":
 509                         srcdate = bb.data.getVar('DATE', d, 1)
 510
 511                 if (maxdate < srcdate) or (mindate > srcdate):
 512                         if (maxdate < srcdate):
 513                                 bb.note("Patch '%s' is outdated" % pname)
 514
 515                         if (mindate > srcdate):
 516                                 bb.note("Patch '%s' is predated" % pname)
 517
 518                         continue
 519
 520                 bb.note("Applying patch '%s'" % pname)
 521                 try:
 522                         patchset.Import({"file":unpacked, "remote":url, "strippath": pnum}, True)
 523                 except:
 524                         import sys
 525                         raise bb.build.FuncFailed(str(sys.exc_value))
 526                 resolver.Resolve()
 527 }
 528
 529 EXPORT_FUNCTIONS do_patch