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