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, self.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                         self.patches.insert(self._current or 0, patch)
 121
 122                 def _applypatch(self, patch, force = None, reverse = None):
 123                         shellcmd = ["patch", "<", patch['file'], "-p", patch['strippath']]
 124                         if reverse:
 125                                 shellcmd.append('-R')
 126                         shellcmd.append('--dry-run')
 127
 128                         try:
 129                                 output = runcmd(["sh", "-c", " ".join(shellcmd)], self.dir)
 130                         except CmdError:
 131                                 if force:
 132                                         shellcmd.pop(len(shellcmd) - 1)
 133                                         output = runcmd(["sh", "-c", " ".join(shellcmd)], self.dir)
 134                                 else:
 135                                         import sys
 136                                         raise sys.exc_value
 137
 138                         return output
 139
 140                 def Push(self, force = None, all = None):
 141                         if all:
 142                                 for i in self.patches:
 143                                         if self._current is not None:
 144                                                 self._current = self._current + 1
 145                                         else:
 146                                                 self._current = 0
 147                                         self._applypatch(i, force)
 148                         else:
 149                                 if self._current is not None:
 150                                         self._current = self._current + 1
 151                                 else:
 152                                         self._current = 0
 153                                 self._applypatch(self.patches[self._current], force)
 154
 155
 156                 def Pop(self, force = None, all = None):
 157                         if all:
 158                                 for i in self.patches:
 159                                         self._applypatch(i, force, True)
 160                         else:
 161                                 self._applypatch(self.patches[self._current], force, True)
 162
 163                 def Clean(self):
 164                         """"""
 165
 166         class QuiltTree(PatchSet):
 167                 def _runcmd(self, args):
 168                         runcmd(["quilt"] + args, self.dir)
 169
 170                 def _quiltpatchpath(self, file):
 171                         return os.path.join(self.dir, "patches", os.path.basename(file))
 172
 173
 174                 def __init__(self, dir, d):
 175                         PatchSet.__init__(self, dir, d)
 176                         self.initialized = False
 177
 178                 def Clean(self):
 179                         try:
 180                                 self._runcmd(["pop", "-a", "-f"])
 181                         except CmdError:
 182                                 pass
 183                         except NotFoundError:
 184                                 pass
 185                         # runcmd(["rm", "-rf", os.path.join(self.dir, "patches"), os.path.join(self.dir, ".pc")])
 186                         self.initialized = True
 187
 188                 def InitFromDir(self):
 189                         # read series -> self.patches
 190                         seriespath = os.path.join(self.dir, 'patches', 'series')
 191                         if not os.path.exists(self.dir):
 192                                 raise Exception("Error: %s does not exist." % self.dir)
 193                         if os.path.exists(seriespath):
 194                                 series = file(seriespath, 'r')
 195                                 for line in series.readlines():
 196                                         patch = {}
 197                                         parts = line.strip().split()
 198                                         patch["quiltfile"] = self._quiltpatchpath(parts[0])
 199                                         patch["quiltfilemd5"] = md5sum(patch["quiltfile"])
 200                                         if len(parts) > 1:
 201                                                 patch["strippath"] = parts[1][2:]
 202                                         self.patches.append(patch)
 203                                 series.close()
 204
 205                                 # determine which patches are applied -> self._current
 206                                 try:
 207                                         output = runcmd(["quilt", "applied"], self.dir)
 208                                 except CmdError:
 209                                         if sys.exc_value.output.strip() == "No patches applied":
 210                                                 return
 211                                         else:
 212                                                 raise sys.exc_value
 213                                 output = [val for val in output.split('\n') if not val.startswith('#')]
 214                                 for patch in self.patches:
 215                                         if os.path.basename(patch["quiltfile"]) == output[-1]:
 216                                                 self._current = self.patches.index(patch)
 217                         self.initialized = True
 218
 219                 def Import(self, patch, force = None):
 220                         if not self.initialized:
 221                                 self.InitFromDir()
 222                         PatchSet.Import(self, patch, force)
 223
 224                         args = ["import", "-p", patch["strippath"]]
 225                         if force:
 226                                 args.append("-f")
 227                         args.append(patch["file"])
 228
 229                         self._runcmd(args)
 230
 231                         patch["quiltfile"] = self._quiltpatchpath(patch["file"])
 232                         patch["quiltfilemd5"] = md5sum(patch["quiltfile"])
 233
 234                         # TODO: determine if the file being imported:
 235                         #          1) is already imported, and is the same
 236                         #          2) is already imported, but differs
 237
 238                         self.patches.insert(self._current or 0, patch)
 239
 240
 241                 def Push(self, force = None, all = None):
 242                         # quilt push [-f]
 243
 244                         args = ["push"]
 245                         if force:
 246                                 args.append("-f")
 247                         if all:
 248                                 args.append("-a")
 249
 250                         self._runcmd(args)
 251
 252                         if self._current is not None:
 253                                 self._current = self._current + 1
 254                         else:
 255                                 self._current = 0
 256
 257                 def Pop(self, force = None, all = None):
 258                         # quilt pop [-f]
 259                         args = ["pop"]
 260                         if force:
 261                                 args.append("-f")
 262                         if all:
 263                                 args.append("-a")
 264
 265                         self._runcmd(args)
 266
 267                         if self._current == 0:
 268                                 self._current = None
 269
 270                         if self._current is not None:
 271                                 self._current = self._current - 1
 272
 273                 def Refresh(self, **kwargs):
 274                         if kwargs.get("remote"):
 275                                 patch = self.patches[kwargs["patch"]]
 276                                 if not patch:
 277                                         raise PatchError("No patch found at index %s in patchset." % kwargs["patch"])
 278                                 (type, host, path, user, pswd, parm) = bb.decodeurl(patch["remote"])
 279                                 if type == "file":
 280                                         import shutil
 281                                         if not patch.get("file") and patch.get("remote"):
 282                                                 patch["file"] = bb.fetch.localpath(patch["remote"], self.d)
 283
 284                                         shutil.copyfile(patch["quiltfile"], patch["file"])
 285                                 else:
 286                                         raise PatchError("Unable to do a remote refresh of %s, unsupported remote url scheme %s." % (os.path.basename(patch["quiltfile"]), type))
 287                         else:
 288                                 # quilt refresh
 289                                 args = ["refresh"]
 290                                 if kwargs.get("quiltfile"):
 291                                         args.append(os.path.basename(kwargs["quiltfile"]))
 292                                 elif kwargs.get("patch"):
 293                                         args.append(os.path.basename(self.patches[kwargs["patch"]]["quiltfile"]))
 294                                 self._runcmd(args)
 295
 296         class Resolver(object):
 297                 def __init__(self, patchset):
 298                         raise NotImplementedError()
 299
 300                 def Resolve(self):
 301                         raise NotImplementedError()
 302
 303                 def Revert(self):
 304                         raise NotImplementedError()
 305
 306                 def Finalize(self):
 307                         raise NotImplementedError()
 308
 309         # Patch resolver which relies on the user doing all the work involved in the
 310         # resolution, with the exception of refreshing the remote copy of the patch
 311         # files (the urls).
 312         class UserResolver(Resolver):
 313                 def __init__(self, patchset):
 314                         self.patchset = patchset
 315
 316                 # Force a push in the patchset, then drop to a shell for the user to
 317                 # resolve any rejected hunks
 318                 def Resolve(self):
 319
 320                         olddir = os.path.abspath(os.curdir)
 321                         os.chdir(self.patchset.dir)
 322                         try:
 323                                 self.patchset.Push(True)
 324                         except CmdError, v:
 325                                 # Patch application failed
 326                                 if sys.exc_value.output.strip() == "No patches applied":
 327                                         return
 328                                 print(sys.exc_value)
 329                                 print('NOTE: dropping user into a shell, so that patch rejects can be fixed manually.')
 330
 331                                 os.system('/bin/sh')
 332
 333                                 # Construct a new PatchSet after the user's changes, compare the
 334                                 # sets, checking patches for modifications, and doing a remote
 335                                 # refresh on each.
 336                                 oldpatchset = self.patchset
 337                                 self.patchset = oldpatchset.__class__(self.patchset.dir, self.patchset.d)
 338
 339                                 for patch in self.patchset.patches:
 340                                         oldpatch = None
 341                                         for opatch in oldpatchset.patches:
 342                                                 if opatch["quiltfile"] == patch["quiltfile"]:
 343                                                         oldpatch = opatch
 344
 345                                         if oldpatch:
 346                                                 patch["remote"] = oldpatch["remote"]
 347                                                 if patch["quiltfile"] == oldpatch["quiltfile"]:
 348                                                         if patch["quiltfilemd5"] != oldpatch["quiltfilemd5"]:
 349                                                                 bb.note("Patch %s has changed, updating remote url %s" % (os.path.basename(patch["quiltfile"]), patch["remote"]))
 350                                                                 # user change?  remote refresh
 351                                                                 self.patchset.Refresh(remote=True, patch=self.patchset.patches.index(patch))
 352                                                         else:
 353                                                                 # User did not fix the problem.  Abort.
 354                                                                 raise PatchError("Patch application failed, and user did not fix and refresh the patch.")
 355                         except Exception:
 356                                 os.chdir(olddir)
 357                                 raise
 358                         os.chdir(olddir)
 359
 360                 # Throw away the changes to the patches in the patchset made by resolve()
 361                 def Revert(self):
 362                         raise NotImplementedError()
 363
 364                 # Apply the changes to the patches in the patchset made by resolve()
 365                 def Finalize(self):
 366                         raise NotImplementedError()
 367
 368         g = globals()
 369         g["PatchSet"] = PatchSet
 370         g["PatchTree"] = PatchTree
 371         g["QuiltTree"] = QuiltTree
 372         g["Resolver"] = Resolver
 373         g["UserResolver"] = UserResolver
 374         g["NotFoundError"] = NotFoundError
 375         g["CmdError"] = CmdError
 376
 377 addtask patch after do_unpack
 378 do_patch[dirs] = "${WORKDIR}"
 379 python patch_do_patch() {
 380         import re
 381         import bb.fetch
 382
 383         patch_init(d)
 384
 385         src_uri = (bb.data.getVar('SRC_URI', d, 1) or '').split()
 386         if not src_uri:
 387                 return
 388
 389         patchsetmap = {
 390                 "patch": PatchTree,
 391                 "quilt": QuiltTree,
 392         }
 393
 394         cls = patchsetmap[bb.data.getVar('PATCHTOOL', d, 1) or 'quilt']
 395
 396         resolvermap = {
 397                 "user": UserResolver,
 398         }
 399
 400         rcls = resolvermap[bb.data.getVar('PATCHRESOLVE', d, 1) or 'user']
 401
 402         s = bb.data.getVar('S', d, 1)
 403
 404         path = os.getenv('PATH')
 405         os.putenv('PATH', bb.data.getVar('PATH', d, 1))
 406         patchset = cls(s, d)
 407         patchset.Clean()
 408
 409         resolver = rcls(patchset)
 410
 411         workdir = bb.data.getVar('WORKDIR', d, 1)
 412         for url in src_uri:
 413                 (type, host, path, user, pswd, parm) = bb.decodeurl(url)
 414                 if not "patch" in parm:
 415                         continue
 416
 417                 bb.fetch.init([url],d)
 418                 url = bb.encodeurl((type, host, path, user, pswd, []))
 419                 local = os.path.join('/', bb.fetch.localpath(url, d))
 420
 421                 # did it need to be unpacked?
 422                 dots = os.path.basename(local).split(".")
 423                 if dots[-1] in ['gz', 'bz2', 'Z']:
 424                         unpacked = os.path.join(bb.data.getVar('WORKDIR', d),'.'.join(dots[0:-1]))
 425                 else:
 426                         unpacked = local
 427                 unpacked = bb.data.expand(unpacked, d)
 428
 429                 if "pnum" in parm:
 430                         pnum = parm["pnum"]
 431                 else:
 432                         pnum = "1"
 433
 434                 if "pname" in parm:
 435                         pname = parm["pname"]
 436                 else:
 437                         pname = os.path.basename(unpacked)
 438
 439                 if "mindate" in parm:
 440                         mindate = parm["mindate"]
 441                 else:
 442                         mindate = 0
 443
 444                 if "maxdate" in parm:
 445                         maxdate = parm["maxdate"]
 446                 else:
 447                         maxdate = "20711226"
 448
 449                 pn = bb.data.getVar('PN', d, 1)
 450                 srcdate = bb.data.getVar('SRCDATE_%s' % pn, d, 1)
 451
 452                 if not srcdate:
 453                         srcdate = bb.data.getVar('SRCDATE', d, 1)
 454
 455                 if srcdate == "now":
 456                         srcdate = bb.data.getVar('DATE', d, 1)
 457
 458                 if (maxdate < srcdate) or (mindate > srcdate):
 459                         if (maxdate < srcdate):
 460                                 bb.note("Patch '%s' is outdated" % pname)
 461
 462                         if (mindate > srcdate):
 463                                 bb.note("Patch '%s' is predated" % pname)
 464
 465                         continue
 466
 467                 bb.note("Applying patch '%s'" % pname)
 468                 try:
 469                         patchset.Import({"file":unpacked, "remote":url, "strippath": pnum}, True)
 470                 except NotFoundError:
 471                         import sys
 472                         raise bb.build.FuncFailed(str(sys.exc_value))
 473                 resolver.Resolve()
 474 }
 475
 476 EXPORT_FUNCTIONS do_patch