Willy Tarreau <[email protected]> wrote: > Hi all, > while revisiting pending issues, I've come across this one, about > the impossibility for an environment variable to produce multiple > words in the configuration: > https://github.com/haproxy/haproxy/issues/165 > It can be trivially addressed by adding support for ${VAR[*]} to the > config language. This addition is relatively simple to do, roughly > speaking, simply add the code in parse_line() in the "if" block dealing > with "$", detect the presence of '[', terminate the variable name here, > raise a flag, then once the variable is resolved, increase arg for each > space found. > We've missed it for 2.2 already, it would be nice if someone interested > in this feature could have a look at it before we release 2.3. I'm OK > with merging it slightly late given that the side effects are quickly > tested. > In the same vein, I've long been saying that we're missing an ifdef > mechanism, but if we had $(if,cond,true,false) like makefiles, we could > already do a lot, particularly in the regtests. There's quite more work > here (define expressions for the condition, internal variable names for > version and builtin options, recursive resolving of variable names), but > it's likely that the same person(s) might be interested. > If someone's interested in having a look at that, please let me know. > There's no shame in trying and not succeeding, don't worry :-)
At the moment I'm always interested to add simple feature, but I also would like to progress with my patch serie on stats so I'm not sure if I will have the time for this :/ -- Amaury Denoyelle
