[gnome-continuous-yocto/gnomeostree-3.28-rocko: 987/8267] package_deb: Avoid chdir warnings and restore cwd after packaging

[Emmanuele Bassi <ebassi src gnome org>]

commit 9b32dd5a00f1dde8af88b38dd977e24f3538d108
Author: Richard Purdie <richard purdie linuxfoundation org>
Date:   Thu Jun 16 16:36:27 2016 +0100

    package_deb: Avoid chdir warnings and restore cwd after packaging
    
    dpkg-build needs to be executed in the root of the package, so save and restore
    the current directory so this task doesn't modify the state.
    
    (From OE-Core rev: c294f4ed5a02b055916cfc26a2fca672edee1208)
    
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/package_deb.bbclass |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/meta/classes/package_deb.bbclass b/meta/classes/package_deb.bbclass
index e35f427..8f9b09a 100644
--- a/meta/classes/package_deb.bbclass
+++ b/meta/classes/package_deb.bbclass
@@ -53,6 +53,8 @@ python do_package_deb () {
     import textwrap
     import subprocess
 
+    oldcwd = os.getcwd()
+
     workdir = d.getVar('WORKDIR', True)
     if not workdir:
         bb.error("WORKDIR not defined, unable to package")
@@ -311,6 +313,7 @@ python do_package_deb () {
 
         cleanupcontrol(root)
         bb.utils.unlockfile(lf)
+    os.chdir(oldcwd)
 }
 # Indirect references to these vars
 do_package_write_deb[vardeps] += "PKGV PKGR PKGV DESCRIPTION SECTION PRIORITY MAINTAINER DPKG_ARCH PN 
HOMEPAGE"