Willy Tarreau 7978c5c422 MEDIUM: vars: make the ifexist variant of set-var only apply to the proc scope ... When setting variables, there are currently two variants, one which will always create the variable, and another one, "ifexist", which will only create or update a variable if a similarly named variable in any scope already existed before. The goal was to limit the risk of injecting random names in the proc scope, but it was achieved by making use of the somewhat limited name indexing model, which explains the scope-agnostic restriction. With this change, we're moving the check downwards in the chain, at the variable level, and only variables under the scope "proc" will be subject to the restriction. A new set of VF_* flags was added to adjust how variables are set, and VF_UPDATEONLY is used to mention this restriction. In this exact state of affairs, this is not completely exact, as if a similar name was not known in any scope, the variable will continue to be rejected like before, but this will change soon.		2021-09-08 11:47:06 +02:00
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index.rst	MEDIUM: vars: make the ifexist variant of set-var only apply to the proc scope	2021-09-08 11:47:06 +02:00
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