patch: allow importing patches into other dirs

Use the 'patchdir' flag.  If relative, it's assumed to be relative to ${S}.
It creates a patchset class per patch directory, so for quilt this results in
multiple .pc/patches directories to manage each of the patchsets.

Signed-off-by: Chris Larson <chris_larson@mentor.com>

diff --git a/classes/patch.bbclass b/classes/patch.bbclass
index 7b0c444..227d7c9 100644 (file)
--- a/classes/patch.bbclass
+++ b/classes/patch.bbclass
@@ -31,10 +31,8 @@ python patch_do_patch() {
 
        path = os.getenv('PATH')
        os.putenv('PATH', bb.data.getVar('PATH', d, 1))
-       patchset = cls(s, d)
-       patchset.Clean()
 
-       resolver = rcls(patchset)
+       classes = {}
 
        workdir = bb.data.getVar('WORKDIR', d, 1)
        for url in src_uri:
@@ -106,6 +104,21 @@ python patch_do_patch() {
                                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)