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[Xen-devel] [PATCH OSSTEST v2 04/12] mfi-common: always add host suite to hostos_runvars

This avoids situations where production-config* has changed
DebianSuite but the bisector is still picking up baselines etc from
before the change and reusing their runvars (without suite) with an
inconsistent config.

Switch selecthost() to use target_var when querying the suite. This
means it will check the "{ident}_suite" runvar first as before but
fallback to just looking at the "all_host_suite" runvar. We also
change the existing host_suite to all_host_suite in mfi-commong so
that test_matrix_iterate() needn't worry about ident=host vs
=src_host/dst_host etc (of course this can still be overridden if
desired by using src_host_suite etc, but nowhere does.

Other uses of $c{DebianSuite} have been abolished already.

Note that "$suite != $defsuite" is not true for any current production
invocation of osstest. If this was ever true then we would have set
the host_suite runvar, whereas now we always set all_host_suite.
However any old flights with host_suite would still be interpretted
the same. Note also that the "$suite != $defsuite" case was previously
broken for the -pair tests since the host idents there are 'src_host'
and 'dst_host', so the previous code would have fallen back to
$c{DebianSuite} without looking at the host_suite runvar.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
runvars changes are lots of:
+xen-unstable               test-amd64-amd64-amd64-pvgrub                       
  all_host_suite               jessie
+xen-unstable               test-amd64-amd64-i386-pvgrub                        
  all_host_suite               jessie
+xen-unstable               test-amd64-amd64-libvirt                            
  all_host_suite               jessie
+xen-unstable               build-amd64                                         
  all_host_suite               jessie
+xen-unstable               build-amd64-libvirt                                 
  all_host_suite               jessie
+xen-unstable               build-amd64-oldkern                                 
  all_host_suite               jessie
 Osstest/TestSupport.pm |  3 +--
 mfi-common             | 12 ++----------
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index 7251344..a42a9ee 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -861,8 +861,7 @@ sub selecthost ($) {
         Info => [],
     if (defined $job) {
-       $ho->{Suite} = get_runvar_default("${ident}_suite",$job,
-                                         $c{DebianSuite});
+       $ho->{Suite} = target_var($ho, "suite") // $c{DebianSuite};
     #----- handle hosts which are themselves guests (nested) -----
diff --git a/mfi-common b/mfi-common
index ccf8a5b..0e2b64f 100644
--- a/mfi-common
+++ b/mfi-common
@@ -123,11 +123,7 @@ create_build_jobs () {
     *)     suite=$defsuite;;
-    if [ $suite != $defsuite ] ; then
-        hostos_runvars="host_suite=$suite"
-    else
-        hostos_runvars=
-    fi
+    hostos_runvars="all_host_suite=$suite"
     # In 4.4 onwards xend is off by default. If necessary we build a
     # separate set of binaries with xend enabled in order to run those
@@ -409,11 +405,7 @@ test_matrix_iterate () {
     *)     suite=$defsuite; guestsuite=$defguestsuite;;
-    if [ $suite != $defsuite ] ; then
-        hostos_runvars="host_suite=$suite"
-    else
-        hostos_runvars=
-    fi
+    hostos_runvars="all_host_suite=$suite"
     for kern in ''; do

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