[pve-devel] [PATCH guest-common v2 1/1] helpers: exec hookscript: add optional parameters

[Dominik Csapak]

sometimes we may want to call the hookscript with additional parameters
in some phases, e.g. we want to call it for each pci device that was
prepared before starting with the correct uuid or pci id.

Add these new parameters to the environment instead of the positional
parameters of the hookscript, since that is more future proof and we get
a key/value pair instead of just the position.

Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
changes from v1:
* use a hash instead of a list for the parameters, and give them to the
  hookscript via the environment instead of positional parameters, like
  we do for the vzdump hookscript

 src/PVE/GuestHelpers.pm | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/PVE/GuestHelpers.pm b/src/PVE/GuestHelpers.pm
index f8d112b..b4122e6 100644
--- a/src/PVE/GuestHelpers.pm
+++ b/src/PVE/GuestHelpers.pm
@@ -115,14 +115,22 @@ sub check_hookscript {
 }
 
 sub exec_hookscript {
-    my ($conf, $vmid, $phase, $stop_on_error) = @_;
+    my ($conf, $vmid, $phase, $stop_on_error, $params) = @_;
 
     return if !$conf->{hookscript};
 
+    $params //= {};
+
     eval {
         my $hookscript = check_hookscript($conf->{hookscript});
         die $@ if $@;
 
+        local %ENV;
+
+        for my $key (keys $params->%*) {
+            $ENV{ uc($key) } = $params->{$key};
+        }
+
         PVE::Tools::run_command([$hookscript, $vmid, $phase]);
     };
     if (my $err = $@) {
-- 
2.47.3