classes/populate_sdk_ext: prevent invalid TEMPLATECONF entering eSDK

If you are using a repository which contains a .templateconf file that
sets TEMPLATECONF to point into a layer it contains, but you aren't
using that layer in your bblayers.conf, the eSDK would produce an error
during the preparation step of the installation. An example would be
using the poky repository but setting DISTRO to your own custom distro
and removing meta-poky from your bblayers.conf. The eSDK doesn't
support creating new build directories, so we don't care about the
templates and can thus force a known good value to prevent this from
happening.

Fixes [YOCTO #10568].

(From OE-Core rev: 5ee32191a18013061dfa72e64713a94c5d321496)

(From OE-Core rev: 7fbc086f47ef6e36c819836deaa1b2fb3f0ec97a)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index 0f0525d764..944fe5cd26 100644
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -88,7 +88,7 @@ SDK_TITLE_task-populate-sdk-ext = "${@d.getVar('DISTRO_NAME', True) or d.getVar(
 def clean_esdk_builddir(d, sdkbasepath):
     """Clean up traces of the fake build for create_filtered_tasklist()"""
     import shutil
-    cleanpaths = 'cache conf/sanity_info conf/templateconf.cfg tmp'.split()
+    cleanpaths = 'cache conf/sanity_info tmp'.split()
     for pth in cleanpaths:
         fullpth = os.path.join(sdkbasepath, pth)
         if os.path.isdir(fullpth):
@@ -344,6 +344,10 @@ python copy_buildsystem () {
                     if line.strip() and not line.startswith('#'):
                         f.write(line)
 
+    # Write a templateconf.cfg
+    with open(baseoutpath + '/conf/templateconf.cfg', 'w') as f:
+        f.write('meta/conf\n')
+
     # Ensure any variables set from the external environment (by way of
     # BB_ENV_EXTRAWHITE) are set in the SDK's configuration
     extralines = []