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Add RELEASE_INFRA_PUSH related code to support pushes from kubernetes/release. #28922
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Jul 15, 2016
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[[ -n "${RELEASE_INFRA_PUSH:-}" ]]
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Well RELEASE_INFRA_PUSH is a convenient true or false bool so we can code it so it reads nice like that.
The other (unsightly) option is:
if [[ "${RELEASE_INFRA_PUSH:-}" == "true" ]]
But -n will always be true unless we change the default.
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Another nice option in bash is to use 0 or 1 for your bool values and take advantage of the double paren eval. Both are certainly more Go or Python like than the overly decorated expression above (== true):
So both read nicely:
Or:
I have started to prefer the former in the past couple of years, but since most of this infra uses true/false, I thought I'd stick with that.
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Okay, seems reasonable. It's just different from the norm in this repo.
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minor nit - scripts in this repo generally use
${VAR}
rather than$VAR
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Indeed. Will correct next iteration.