[OE-core] [jethro][PATCH v2] license.bbclass: fix host contamination warnings for license files

[Jagadeesh Krishnanjanappa]

We get below host contamination warnings of license files for
each recipe, when we try to create a separate ${PN}-lic package (which
contains license files), by setting LICENSE_CREATE_PACKAGE equal to "1"
in local.conf.

-- snip --
WARNING: QA Issue: libcgroup: /libcgroup-lic/usr/share/licenses/libcgroup/generic_LGPLv2.1 is owned by uid 5001, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
WARNING: QA Issue: attr: /attr-lic/usr/share/licenses/attr/libattr.c is owned by uid 5001, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
WARNING: QA Issue: bash: /bash-lic/usr/share/licenses/bash/COPYING is owned by uid 5001, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
-- CUT --

Since the license files from source and OE-core, are populated in a normal
shell environment rather in pseudo environment (fakeroot); the ownership of
these files will be same as host user running bitbake. During the do_package
task (which runs in pseudo environment (fakeroot)), os.link preserves the
ownership of these license files as host user instead of root user.
This causes license files to have UID same as host user id and resulting in
above warnings during do_package_qa task.

Changing ownership of license files to root user (which has UID and GID as 0)
under fakeroot environment will solve above warnings, and on exiting fakeroot
environment the license files will continue to be owned by host user.

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa at mvista.com>
---
 meta/classes/license.bbclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index c616a20..6aa654c 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -185,6 +185,7 @@ def copy_license_files(lic_files_paths, destdir):
                 os.remove(dst)
             if os.access(src, os.W_OK) and (os.stat(src).st_dev == os.stat(destdir).st_dev):
                 os.link(src, dst)
+                os.chown(dst,0,0)
             else:
                 shutil.copyfile(src, dst)
         except Exception as e:
-- 
1.9.1