[gnome-continuous-yocto/gnomeostree-3.28-rocko: 6365/8267] package_manager: flush installed_pkgs file before oe-pkgdata-util uses it

[Emmanuele Bassi <ebassi src gnome org>]

commit 1460e8aa99ffef3760e5f56ecd4741bce47c2201
Author: Martin Jansa <martin jansa gmail com>
Date:   Tue May 30 07:48:13 2017 +0200

    package_manager: flush installed_pkgs file before oe-pkgdata-util uses it
    
    * since this commit:
      commit f5a1013ffa9815f22e13989e2bcb83f966e7ce2c
      Author: Ross Burton <ross burton intel com>
      Date:   Tue Apr 18 16:19:12 2017 +0100
    
        package_manager: don't race on a file when installing complementary
        packages
    
      the file isn't closed before oe-pkgdata-util uses it and this
      temporary file might look empty to oe-pkgdata-util, because it
      wasn't flushed yet. Which resulted in almost empty debugfs tarballs
      and no locale packages in regular rootfs.
    * without this change:
      124K May 30 07:41 core-image-full-cmdline-raspberrypi3-64-20170530054003-dbg.rootfs.tar.gz
    * with this change:
      173M May 30 07:29 core-image-full-cmdline-raspberrypi3-64-20170530052715-dbg.rootfs.tar.gz
    
    (From OE-Core rev: 877d38db08aa7060d16405443cf70539c559fe82)
    
    Signed-off-by: Martin Jansa <Martin Jansa gmail com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/lib/oe/package_manager.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/meta/lib/oe/package_manager.py b/meta/lib/oe/package_manager.py
index caccd7b..bc4e301 100644
--- a/meta/lib/oe/package_manager.py
+++ b/meta/lib/oe/package_manager.py
@@ -399,6 +399,7 @@ class PackageManager(object, metaclass=ABCMeta):
             pkgs = self.list_installed()
             output = oe.utils.format_pkg_list(pkgs, "arch")
             installed_pkgs.write(output)
+            installed_pkgs.flush()
 
             cmd = [bb.utils.which(os.getenv('PATH'), "oe-pkgdata-util"),
                    "-p", self.d.getVar('PKGDATA_DIR'), "glob", installed_pkgs.name,