summaryrefslogtreecommitdiff
path: root/meta/classes/patch.bbclass
diff options
context:
space:
mode:
Diffstat (limited to 'meta/classes/patch.bbclass')
-rw-r--r--meta/classes/patch.bbclass405
1 files changed, 405 insertions, 0 deletions
diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
new file mode 100644
index 0000000000..0f0d6a686f
--- /dev/null
+++ b/meta/classes/patch.bbclass
@@ -0,0 +1,405 @@
+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()
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 14:18:14 +0000