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core.moduleapi: Default labels to empty list to fix error if omitted

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In a host-scoped module in the `if is_scoped` clause the resulting
`array:append(nil)` call throws.
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Kim Alvefur 2024-08-18 16:58:30 +02:00
parent 4f7c829b1e
commit 65386e9810
1 changed files with 1 additions and 0 deletions
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core/moduleapi.lua
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@ -558,6 +558,7 @@ end
function api:metric(type_, name, unit, description, label_keys, conf) function api:metric(type_, name, unit, description, label_keys, conf)
local metric = require "core.statsmanager".metric; local metric = require "core.statsmanager".metric;
local is_scoped = self.host ~= "*" local is_scoped = self.host ~= "*"
label_keys = label_keys or {};
if is_scoped then if is_scoped then
-- prepend `host` label to label keys if this is not a global module -- prepend `host` label to label keys if this is not a global module
local orig_labels = label_keys local orig_labels = label_keys