start/resume channels array error on OSX

[natalieda]

When I start/resume a channel on my mac with ada I get this error:

The channel starts successfully: ./ada: line 892: declare: -A: invalid option declare: usage: declare [-afFirtx] [-p] [name[=value] ...]

What are the options to bypass the error on OSX?

[onnozweers]

Hi Natalie,

OSX has bash version 3, which is pretty outdated and does not support associative arrays (defined by declare -A). This is discussed here: https://stackoverflow.com/questions/6047648/bash-4-associative-arrays-error-declare-a-invalid-option

We have a few options:

• There's brew install bash but then we'd need to change the shebang #!/bin/bash to #!/usr/bin/env bash. In https://stackoverflow.com/questions/21612980/why-is-usr-bin-env-bash-superior-to-bin-bash I can find no reason not to do that. We could then build in a check whether the actual bash version is sufficient for the task we're doing.
• Use a workaround that doesn't need associative arrays. There is one in the first mentioned StackOverflow discussion.
• We don't support SSE events on OSX.

[natalieda]

Hi Onno,

Thank you for investigating the options. I would go for the first option to ensure portability of ada in all systems including the events operations if this is technically possible. In any case we will advice users to start channels on a host machine that is continuously running (i.e. a linux server such as our UIs) and not their laptops to avoid loosing events when the machine is offline.

[onnozweers]

Fixed in f1fa4e8