[PATCH v2 1/6] osstest: allow appending to existing runvars

[Roger Pau Monne <roger.pau@citrix.com>]

From: Ian Jackson <ian.jackson@citrix.com>

So that the contents of the runvar can be expanded. There are
currently two ways to do this:

 - Using += will append to the end of the runvar.
 - Using ,= will append to the end of the runvar using ',' as the
   separator.

Note that if the runvar is empty {,|+}= just sets the runvar.

Signed-off-by: Ian Jackson <ian.jackson@citrix.com>
---
 cs-job-create | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/cs-job-create b/cs-job-create
index 064a9294..1980a625 100755
--- a/cs-job-create
+++ b/cs-job-create
@@ -53,8 +53,12 @@ foreach my $rv (@runvars) {
         $suppress{$1}= 1;
         next;
     }
-    $rv =~ m/^([a-z][0-9a-z_]*)(\~?)\=(.*)$/ or die "$rv ?";
-    my ($name,$synth,$val) = ($1,$2,$3);
+    $rv =~ m/^([a-z][0-9a-z_]*)(\~?)([+,]?)\=(.*)$/ or die "$rv ?";
+    my ($name,$synth,$add,$val) = ($1,$2,$3,$4);
+    if ($add && $runvars{$name}) {
+       die "$name synth mismatch" if !!$runvars{$name}[1] ne !!$synth;
+       $val = $runvars{$name}[0].($add ne '+' && $add).$val;
+    }
     $runvars{$name}= [$val,$synth];
 }
 
-- 
2.17.1


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