sstate.bbclass: fix detection of owners matching sstate files
* without this patch:
Python 2.7.3
>>> sstate_search_cmd = "grep -rl /OE/jansa-test/shr-core/tmp-eglibc/pkgdata/armv7a-vfp-neon-oe-linux-gnueabi/runtime-reverse/vim-common /OE/jansa-test/shr-core/tmp-eglibc/sstate-control --exclude=master.list | sed -e 's:^.*/::' -e 's:\.populate-sysroot::'"
>>> cmd_array = sstate_search_cmd.split(' ')
>>> search_output = subprocess.Popen(cmd_array, stdout=subprocess.PIPE).communicate()[0]
grep: |: No such file or directory
grep: sed: No such file or directory
* Adding shell=True and using cmd string instead of array makes it work:
>>> search_output = subprocess.Popen(sstate_search_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
>>> print search_output
manifest-armv7a-vfp-neon-gvim.package
manifest-armv7a-vfp-neon-vim-tiny.package
manifest-armv7a-vfp-neon-vim.package
But still isn't 100% reliable, I guess it's caused by some other package
being removed from sstate while grep is already running.
So sometimes grep can show error on STDERR
>>> search_output = subprocess.Popen(sstate_search_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
grep: /OE/jansa-test/shr-core/tmp-eglibc/sstate-control/manifest-armv7a-vfp-neon-systemtap.package: No such file or directory
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
