[gnome-continuous-yocto/gnomeostree-3.28-rocko: 5175/8267] oe/path.py: fix for "Argument list too long"

[Emmanuele Bassi <ebassi src gnome org>]

commit 08dfb8930158a2b34d530ea188f757a4a81b55c1
Author: Robert Yang <liezhi yang windriver com>
Date:   Tue Mar 14 01:45:45 2017 -0700

    oe/path.py: fix for "Argument list too long"
    
    Issue: LIN9-1648
    
    Fixed when len(TMPDIR) = 410:
    $ bitbake core-image-sato-sdk
    [snip]
    Subprocess output:
    /bin/sh: /bin/cp: Argument list too long
    
    ERROR: core-image-sato-sdk-1.0-r0 do_rootfs: Function failed: do_rootfs
    [snip]
    
    This is because "copyhardlinktree(src, dst)" does "cp -afl src/* dst",
    while src/* is expanded to "src/file1 src/file2, src/file3..." which
    causes the "Argument list too long", use ./* as src and change cwd in
    subprocess.check_output() to fix the problem.
    
    (From OE-Core rev: a3dc93eb25fba32109edd1db6e8766074fb52e4b)
    
    Signed-off-by: Robert Yang <liezhi yang windriver com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/lib/oe/path.py |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/meta/lib/oe/path.py b/meta/lib/oe/path.py
index a2a50c5..448a2b9 100644
--- a/meta/lib/oe/path.py
+++ b/meta/lib/oe/path.py
@@ -103,12 +103,14 @@ def copyhardlinktree(src, dst):
         source = ''
         if os.path.isdir(src):
             if len(glob.glob('%s/.??*' % src)) > 0:
-                source = '%s/.??* ' % src
-            source = source + '%s/*' % src
+                source = './.??* '
+            source += './*'
+            s_dir = src
         else:
             source = src
-        cmd = 'cp -afl --preserve=xattr %s %s' % (source, dst)
-        subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)
+            s_dir = os.getcwd()
+        cmd = 'cp -afl --preserve=xattr %s %s' % (source, os.path.realpath(dst))
+        subprocess.check_output(cmd, shell=True, cwd=s_dir, stderr=subprocess.STDOUT)
     else:
         copytree(src, dst)