patch.bbclass: allow importing patches into other dirs

This is taken from openembedded.master:
commit 9d0d70da60ca8ef278916f442125d41161846f38
Author: Chris Larson <chris_larson@mentor.com>
Date:   Mon Aug 23 13:03:55 2010 -0400

    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 i
    multiple .pc/patches directories to manage each of the patchsets.

    (From OE-Core rev: 01e4609ee8441c8212725fd062782313caae0708)

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

Signed-off-by: Tom Rini <tom_rini@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 16 insertions, 3 deletions

diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
index 80fd45f0e3..762216345a 100644
--- a/meta/classes/patch.bbclass
+++ b/meta/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:
@@ -117,6 +115,21 @@ python patch_do_patch() {
                                 bb.note("Patch '%s' doesn't apply to revision" % 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)