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classes/license: handle EXDEV if hard link to license fails

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Hard links can still fail even if st_dev is the same for source
and destination. In case of EXDEV error, fall back to copying.

(From OE-Core rev: c00423d6bab9849e331beadf4d3cee90e04fe295)

Signed-off-by: Manuel Huber <manuel.h87@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Manuel Huber
2016-06-11 09:50:02 +02:00
committed by Richard Purdie
parent 4f8f3f6cb4
commit 66c5a4ad62
1 changed files with 15 additions and 5 deletions
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20
meta/classes/license.bbclass
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@@ -342,6 +342,7 @@ def add_package_and_files(d):
def copy_license_files(lic_files_paths, destdir):
import shutil
import errno
bb.utils.mkdirhier(destdir)
for (basename, path) in lic_files_paths:
@@ -350,12 +351,21 @@ def copy_license_files(lic_files_paths, destdir):
dst = os.path.join(destdir, basename)
if os.path.exists(dst):
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)
canlink = os.access(src, os.W_OK) and (os.stat(src).st_dev == os.stat(destdir).st_dev)
if canlink:
try:
os.chown(dst,0,0)
os.link(src, dst)
except OSError as err:
if err.errno == errno.EXDEV:
# Copy license files if hard-link is not possible even if st_dev is the
# same on source and destination (docker container with device-mapper?)
canlink = False
else:
raise
try:
if canlink:
os.chown(dst,0,0)
except OSError as err:
import errno
if err.errno in (errno.EPERM, errno.EINVAL):
# Suppress "Operation not permitted" error, as
# sometimes this function is not executed under pseudo.
@@ -364,7 +374,7 @@ def copy_license_files(lic_files_paths, destdir):
pass
else:
raise
else:
if not canlink:
shutil.copyfile(src, dst)
except Exception as e:
bb.warn("Could not copy license file %s to %s: %s" % (src, dst, e))