1 files changed, 128 insertions, 0 deletions
diff --git a/classes/patch.bbclass b/classes/patch.bbclass
new file mode 100644
index 0000000000..58b931f966
--- /dev/null
+++ b/classes/patch.bbclass
@@ -0,0 +1,128 @@
+# Copyright (C) 2006  OpenedHand LTD
+
+# Point to an empty file so any user's custom settings don't break things
+QUILTRCFILE ?= "${STAGING_BINDIR_NATIVE}/quiltrc"
+
+PATCHDEPENDENCY = "${PATCHTOOL}-native:do_populate_sysroot"
+
+python patch_do_patch() {
+	import oe.patch
+	import oe.unpack
+
+	src_uri = (bb.data.getVar('SRC_URI', d, 1) or '').split()
+	if not src_uri:
+		return
+
+	patchsetmap = {
+		"patch": oe.patch.PatchTree,
+		"quilt": oe.patch.QuiltTree,
+		"git": oe.patch.GitApplyTree,
+	}
+
+	cls = patchsetmap[bb.data.getVar('PATCHTOOL', d, 1) or 'quilt']
+
+	resolvermap = {
+		"noop": oe.patch.NOOPResolver,
+		"user": oe.patch.UserResolver,
+	}
+
+	rcls = resolvermap[bb.data.getVar('PATCHRESOLVE', d, 1) or 'user']
+
+	s = bb.data.getVar('S', d, 1)
+
+	path = os.getenv('PATH')
+	os.putenv('PATH', bb.data.getVar('PATH', d, 1))
+
+	classes = {}
+
+	src_uri = d.getVar("SRC_URI", True).split()
+	srcurldata = bb.fetch.init(src_uri, d, True)
+	workdir = bb.data.getVar('WORKDIR', d, 1)
+	for url in d.getVar("SRC_URI", True).split():
+		urldata = srcurldata[url]
+
+		local = urldata.localpath
+		if not local:
+			raise bb.build.FuncFailed('Unable to locate local file for %s' % url)
+
+		base, ext = os.path.splitext(os.path.basename(local))
+		if ext in ('.gz', '.bz2', '.Z'):
+			local = oe.path.join(workdir, base)
+
+		if not oe.unpack.is_patch(local, urldata.parm):
+			continue
+
+		parm = urldata.parm
+
+		if "striplevel" in parm:
+			striplevel = parm["striplevel"]
+		elif "pnum" in parm:
+			bb.msg.warn(None, "Deprecated usage of 'pnum' url parameter in '%s', please use 'striplevel'" % url)
+			striplevel = parm["pnum"]
+		else:
+			striplevel = '1'
+
+		if "pname" in parm:
+			pname = parm["pname"]
+		else:
+			pname = os.path.basename(local)
+
+		if "mindate" in parm or "maxdate" in parm:
+			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" in parm and parm["maxdate"] < srcdate:
+				bb.note("Patch '%s' is outdated" % pname)
+				continue
+
+			if "mindate" in parm and parm["mindate"] > srcdate:
+				bb.note("Patch '%s' is predated" % pname)
+				continue
+
+
+		if "minrev" in parm:
+			srcrev = bb.data.getVar('SRCREV', d, 1)
+			if srcrev and srcrev < parm["minrev"]:
+				bb.note("Patch '%s' applies to later revisions" % pname)
+				continue
+
+		if "maxrev" in parm:
+			srcrev = bb.data.getVar('SRCREV', d, 1)		
+			if srcrev and srcrev > parm["maxrev"]:
+				bb.note("Patch '%s' applies to earlier revisions" % pname)
+				continue
+
+		if "patchdir" in parm:
+			patchdir = parm["patchdir"]
+			if not os.path.isabs(patchdir):
+				patchdir = os.path.join(s, patchdir)
+		else:
+			patchdir = s
+
+		if not patchdir in classes:
+			patchset = cls(patchdir, d)
+			resolver = rcls(patchset)
+			classes[patchdir] = (patchset, resolver)
+			patchset.Clean()
+		else:
+			patchset, resolver = classes[patchdir]
+
+		bb.note("Applying patch '%s' (%s)" % (pname, oe.path.format_display(local, d)))
+		try:
+			patchset.Import({"file":local, "remote":url, "strippath": striplevel}, True)
+		except Exception:
+			import sys
+			raise bb.build.FuncFailed(str(sys.exc_value))
+		resolver.Resolve()
+}
+
+addtask patch after do_unpack
+do_patch[dirs] = "${WORKDIR}"
+do_patch[depends] = "${PATCHDEPENDENCY}"
+
+EXPORT_FUNCTIONS do_patch