def patch_init(): import os, sys def md5sum(fname): import md5, sys f = file(fname, 'rb') m = md5.new() while True: d = f.read(8096) if not d: break m.update(d) f.close() return m.hexdigest() class CmdError(Exception): def __init__(self, exitstatus, output): self.status = exitstatus self.output = output def __str__(self): return "Command Error: exit status: %d Output:\n%s" % (self.status, self.output) def runcmd(args, dir = None): import commands if dir: olddir = os.path.abspath(os.curdir) os.chdir(dir) # print("cwd: %s -> %s" % (olddir, self.dir)) try: args = [ commands.mkarg(str(arg)) for arg in args ] cmd = " ".join(args) # print("cmd: %s" % cmd) (exitstatus, output) = commands.getstatusoutput(cmd) if exitstatus != 0: raise CmdError(exitstatus >> 8, output) return output finally: if dir: os.chdir(olddir) class PatchError(Exception): def __init__(self, patch, msg): self.msg = msg self.patch = patch def __str__(self): return "Patch Error: patch %s: %s" % (os.path.basename(self.patch.file), self.msg) import bb, bb.data, bb.fetch class PatchSet(object): defaults = { "strippath": 1 } def __init__(self, dir, d): self.dir = dir self.d = d self.patches = [] self._current = None def current(self): return self._current def Clean(self): """ Clean out the patch set. Generally includes unapplying all patches and wiping out all associated metadata. """ raise NotImplementedError() def Import(self, patch, force): if not patch.get("file"): if not patch.get("remote"): raise PatchError("Patch file must be specified in patch import.") else: patch["file"] = bb.fetch.localpath(patch["remote"], self.d) for param in PatchSet.defaults: if not patch.get(param): patch[param] = PatchSet.defaults[param] if patch.get("remote"): patch["file"] = bb.fetch.localpath(patch["remote"], self.d) patch["filemd5"] = md5sum(patch["file"]) def Push(self, force): raise NotImplementedError() def Pop(self, force): raise NotImplementedError() def Refresh(self, remote = None, all = None): raise NotImplementedError() class QuiltTree(PatchSet): def _runcmd(self, args): runcmd(["quilt"] + args, self.dir) def _quiltpatchpath(self, file): return os.path.join(self.dir, "patches", os.path.basename(file)) def __init__(self, dir, d): PatchSet.__init__(self, dir, d) self.initialized = False def Clean(self): try: self._runcmd(["pop", "-a", "-f"]) except CmdError: if sys.exc_value.output.strip() == "No patch removed": pass else: raise PatchError("Unable to clean patches from tree:\n"+str(sys.exc_value)) except OSError: if str(sys.exc_value).startswith('OSError: [Errno 2]'): pass runcmd(["rm", "-rf", os.path.join(self.dir, "patches"), os.path.join(self.dir, ".pc")]) self.initialized = True def InitFromDir(self): # read series -> self.patches seriespath = os.path.join(self.dir, 'patches', 'series') if not os.path.exists(self.dir): raise Exception("Error: %s does not exist." % self.dir) if os.path.exists(seriespath): series = file(seriespath, 'r') for line in series.readlines(): patch = {} parts = line.strip().split() patch["quiltfile"] = self._quiltpatchpath(parts[0]) patch["quiltfilemd5"] = md5sum(patch["quiltfile"]) if len(parts) > 1: patch["strippath"] = parts[1][2:] self.patches.append(patch) series.close() # determine which patches are applied -> self._current try: output = runcmd(["quilt", "applied"], self.dir) except CmdError: if sys.exc_value.output.strip() == "No patches applied": return else: raise sys.exc_value output = [val for val in output.split('\n') if not val.startswith('#')] for patch in self.patches: if os.path.basename(patch["quiltfile"]) == output[-1]: self._current = self.patches.index(patch) self.initialized = True def Import(self, patch, force = None): if not self.initialized: self.InitFromDir() PatchSet.Import(self, patch, force) args = ["import", "-p", patch["strippath"]] if force: args.append("-f") args.append(patch["file"]) self._runcmd(args) patch["quiltfile"] = self._quiltpatchpath(patch["file"]) patch["quiltfilemd5"] = md5sum(patch["quiltfile"]) # TODO: determine if the file being imported: # 1) is already imported, and is the same # 2) is already imported, but differs self.patches.insert(self._current or 0, patch) def Push(self, force = None, all = None): # quilt push [-f] args = ["push"] if force: args.append("-f") if all: args.append("-a") self._runcmd(args) if self._current is not None: self._current = self._current + 1 else: self._current = 0 def Pop(self, force = None, all = None): # quilt pop [-f] args = ["pop"] if force: args.append("-f") if all: args.append("-a") self._runcmd(args) if self._current == 0: self._current = None if self._current is not None: self._current = self._current - 1 def Refresh(self, **kwargs): if kwargs.get("remote"): patch = self.patches[kwargs["patch"]] if not patch: raise PatchError("No patch found at index %s in patchset." % kwargs["patch"]) (type, host, path, user, pswd, parm) = bb.decodeurl(patch["remote"]) if type == "file": import shutil if not patch.get("file") and patch.get("remote"): patch["file"] = bb.fetch.localpath(patch["remote"], self.d) shutil.copyfile(patch["quiltfile"], patch["file"]) else: raise PatchError(patch, "Unable to do a remote refresh of %s, unsupported remote url scheme %s." % (os.path.basename(patch["quiltfile"]), type)) else: # quilt refresh args = ["refresh"] if kwargs.get("quiltfile"): args.append(os.path.basename(kwargs["quiltfile"])) elif kwargs.get("patch"): args.append(os.path.basename(self.patches[kwargs["patch"]]["quiltfile"])) self._runcmd(args) class Resolver(object): def __init__(self, patchset): raise NotImplementedError() def Resolve(self): raise NotImplementedError() def Revert(self): raise NotImplementedError() def Finalize(self): raise NotImplementedError() # Patch resolver which relies on the user doing all the work involved in the # resolution, with the exception of refreshing the remote copy of the patch # files (the urls). class UserResolver(Resolver): def __init__(self, patchset): self.patchset = patchset # Force a push in the patchset, then drop to a shell for the user to # resolve any rejected hunks def Resolve(self): olddir = os.path.abspath(os.curdir) os.chdir(self.patchset.dir) try: self.patchset.Push(True) except CmdError, v: # Patch application failed if sys.exc_value.output.strip() == "No patches applied": return print(sys.exc_value) print('NOTE: dropping user into a shell, so that patch rejects can be fixed manually.') os.system('/bin/sh') # Construct a new PatchSet after the user's changes, compare the # sets, checking patches for modifications, and doing a remote # refresh on each. oldpatchset = self.patchset self.patchset = oldpatchset.__class__(self.patchset.dir, self.patchset.d) for patch in self.patchset.patches: oldpatch = None for opatch in oldpatchset.patches: if opatch["quiltfile"] == patch["quiltfile"]: oldpatch = opatch if oldpatch: patch["remote"] = oldpatch["remote"] if patch["quiltfile"] == oldpatch["quiltfile"]: if patch["quiltfilemd5"] != oldpatch["quiltfilemd5"]: bb.note("Patch %s has changed, updating remote url %s" % (os.path.basename(patch["quiltfile"]), patch["remote"])) # user change? remote refresh self.patchset.Refresh(remote=True, patch=self.patchset.patches.index(patch)) else: # User did not fix the problem. Abort. raise PatchError("Patch application failed, and user did not fix and refresh the patch.") except Exception: os.chdir(olddir) raise os.chdir(olddir) # Throw away the changes to the patches in the patchset made by resolve() def Revert(self): raise NotImplementedError() # Apply the changes to the patches in the patchset made by resolve() def Finalize(self): raise NotImplementedError() g = globals() g["PatchSet"] = PatchSet g["QuiltTree"] = QuiltTree g["Resolver"] = Resolver g["UserResolver"] = UserResolver addtask patch after do_unpack do_patch[dirs] = "${WORKDIR}" python base_do_patch() { import re import bb.fetch patch_init() src_uri = (bb.data.getVar('SRC_URI', d, 1) or '').split() if not src_uri: return patchsetmap = { "quilt": QuiltTree, } cls = patchsetmap[bb.data.getVar('PATCHTOOL', d, 1) or 'quilt'] resolvermap = { "user": UserResolver, } rcls = resolvermap[bb.data.getVar('PATCHRESOLVE', d, 1) or 'user'] s = bb.data.getVar('S', d, 1) patchset = cls(s, d) patchset.Clean() resolver = rcls(patchset) workdir = bb.data.getVar('WORKDIR', d, 1) for url in src_uri: (type, host, path, user, pswd, parm) = bb.decodeurl(url) if not "patch" in parm: continue bb.fetch.init([url],d) url = bb.encodeurl((type, host, path, user, pswd, [])) local = os.path.join('/', bb.fetch.localpath(url, d)) # did it need to be unpacked? dots = os.path.basename(local).split(".") if dots[-1] in ['gz', 'bz2', 'Z']: unpacked = os.path.join(bb.data.getVar('WORKDIR', d),'.'.join(dots[0:-1])) else: unpacked = local unpacked = bb.data.expand(unpacked, d) if "pnum" in parm: pnum = parm["pnum"] else: pnum = "1" if "pname" in parm: pname = parm["pname"] else: pname = os.path.basename(unpacked) if "mindate" in parm: mindate = parm["mindate"] else: mindate = 0 if "maxdate" in parm: maxdate = parm["maxdate"] else: maxdate = "20711226" pn = bb.data.getVar('PN', d, 1) srcdate = bb.data.getVar('SRCDATE_%s' % pn, d, 1) if not srcdate: srcdate = bb.data.getVar('SRCDATE', d, 1) if srcdate == "now": srcdate = bb.data.getVar('DATE', d, 1) if (maxdate < srcdate) or (mindate > srcdate): if (maxdate < srcdate): bb.note("Patch '%s' is outdated" % pname) if (mindate > srcdate): bb.note("Patch '%s' is predated" % pname) continue bb.note("Applying patch '%s'" % pname) patchset.Import({"file":unpacked, "remote":url, "strippath": pnum}, True) resolver.Resolve() }