[PATCH] patch: Add support for patches in sub-directories

[Jan Kiszka <jan.kiszka@siemens.com>]

From: Jan Kiszka <jan.kiszka@siemens.com>

The patch class was assuming that the file is flat in the workdir after
unpack. That may not be true. Enhance the logic and add a test case to
hello-isar.

Reported-by: Su Bao Cheng <baocheng.su@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 .../hello-isar/files/{ => subdir}/0001-Add-some-help.patch       | 0
 meta-isar/recipes-app/hello-isar/hello-isar.bb                   | 2 +-
 meta/classes/patch.bbclass                                       | 9 +++++----
 3 files changed, 6 insertions(+), 5 deletions(-)
 rename meta-isar/recipes-app/hello-isar/files/{ => subdir}/0001-Add-some-help.patch (100%)

diff --git a/meta-isar/recipes-app/hello-isar/files/0001-Add-some-help.patch b/meta-isar/recipes-app/hello-isar/files/subdir/0001-Add-some-help.patch
similarity index 100%
rename from meta-isar/recipes-app/hello-isar/files/0001-Add-some-help.patch
rename to meta-isar/recipes-app/hello-isar/files/subdir/0001-Add-some-help.patch
diff --git a/meta-isar/recipes-app/hello-isar/hello-isar.bb b/meta-isar/recipes-app/hello-isar/hello-isar.bb
index 5806f9e..144a433 100644
--- a/meta-isar/recipes-app/hello-isar/hello-isar.bb
+++ b/meta-isar/recipes-app/hello-isar/hello-isar.bb
@@ -16,7 +16,7 @@ DEPENDS += "libhello"
 
 SRC_URI = " \
     git://github.com/ilbers/hello.git;protocol=https;destsuffix=${P} \
-    file://0001-Add-some-help.patch \
+    file://subdir/0001-Add-some-help.patch \
     file://yet-another-change.txt;apply=yes;striplevel=0"
 SRCREV = "a18c14cc11ce6b003f3469e89223cffb4016861d"
 
diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
index bb203b7..2662702 100644
--- a/meta/classes/patch.bbclass
+++ b/meta/classes/patch.bbclass
@@ -40,8 +40,8 @@ python do_patch() {
             if apply == "no":
                 continue
 
-            basename = fetcher.ud[src_uri].basename or ""
-            if not (basename.endswith(".patch") or apply == "yes"):
+            path = fetcher.ud[src_uri].path or ""
+            if not (path.endswith(".patch") or apply == "yes"):
                 continue
 
             patchdir = fetcher.ud[src_uri].parm.get("patchdir") or src_dir
@@ -54,8 +54,9 @@ python do_patch() {
 
             cmds = open(applied_patches_dir + ".patch-commands", "a")
 
-            patch_file = applied_patches_dir + basename
-            shutil.copyfile(workdir + basename, patch_file)
+            patch_file = applied_patches_dir + path
+            bb.utils.mkdirhier(os.path.dirname(patch_file))
+            shutil.copyfile(workdir + path, patch_file)
 
             striplevel = fetcher.ud[src_uri].parm.get("striplevel") or "1"
 
-- 
2.16.4