[Xen-devel] [OSSTEST PATCH] sg-run-job: Make nested-layer-descend insist on $ok

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

per-host-ts does nothing if !$ok, so per-host-prep's individual steps
become no-ops if the host prep fails, which prevents blundering on.
But per-host-prep does not throw.

The other call site explicitly avoids calling the recipe script if
!$ok.  nested-layer-descend is for calling from within a recipe, so we
need to throw an exception to abort the script, if !$ok.

Reported-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
 sg-run-job |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sg-run-job b/sg-run-job
index a2527ca..d9b2e38 100755
--- a/sg-run-job
+++ b/sg-run-job
@@ -260,10 +260,11 @@ proc per-host-ts {iffail ident script args} {
 proc nested-layer-descend {nested_hosts} {
     # We save need_xen_hosts on a stack in nested_layers_hosts
     # It gets popped again during the cleanup part of run-job
-    global nested_layers_hosts need_xen_hosts
+    global nested_layers_hosts need_xen_hosts ok
     lappend nested_layers_hosts $need_xen_hosts
     set need_xen_hosts $nested_hosts
     per-host-prep
+    if {!$ok} { error "host prep ($nested_hosts) (or something else) failed" }
 }
 
 #---------- test recipes ----------
-- 
1.7.10.4


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