[OE-core] [PATCH] archiver: avoid empty incfile in ar_recipe

[grygorii tertychnyi]

do_ar_recipe fails on perf recipe on line:

include ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'perf-perl.inc', '', d)}

1. "${...}" part expands into empty string
2. bb.utils.which() takes empty string and returns first directory name from bbpath
3. shutil.copy() fails on copying directory:

Exception: IsADirectoryError: [Errno 21] Is a directory: ......

Hence, check "incfile" variable on each step.

Signed-off-by: grygorii tertychnyi <gtertych at cisco.com>
---
 meta/classes/archiver.bbclass | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/meta/classes/archiver.bbclass b/meta/classes/archiver.bbclass
index 093e2d95af..7c46cff91f 100644
--- a/meta/classes/archiver.bbclass
+++ b/meta/classes/archiver.bbclass
@@ -441,9 +441,10 @@ python do_ar_recipe () {
             incfile = include_re.match(line).group(1)
         if incfile:
             incfile = d.expand(incfile)
+        if incfile:
             incfile = bb.utils.which(bbpath, incfile)
-            if incfile:
-                shutil.copy(incfile, outdir)
+        if incfile:
+            shutil.copy(incfile, outdir)
 
     create_tarball(d, outdir, 'recipe', d.getVar('ARCHIVER_OUTDIR'))
     bb.utils.remove(outdir, recurse=True)
-- 
2.23.0