feat(cli) Improve environment variables parsing #2042
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The following environment variables are considered incorrect: * `A`, no equal sign, * `A=`, value is missing, * `=A`, key is missing. The following environment variables are considered correct: * `A=B` with `A` for the name and `B` for the value, * `A=B=C` with `A` for the name and `B=C` for the value.
Hywan
added
🎉 enhancement
MarkMcCaskey
approved these changes
Jan 22, 2021
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The actual splitting can just be done with just https://doc.rust-lang.org/std/primitive.str.html#method.split_at ; but we won't have as many error cases to report.
Just a heads up, I'm fine keeping it as-is
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We would need to deal with empty string for the left- or right-end side of the =. I think the code would not be simplified that much. Thanks for the heads-up!
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bors r+ |
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Description
This PR fixes #2028. In #1762 we have already improved environment variables syntax, but the same work must be done in the CLI crate.
The following environment variables are considered incorrect:
A, no equal sign,A=, value is missing,=A, key is missing.The following environment variables are considered correct:
A=BwithAfor the name andBfor the value,A=B=CwithAfor the name andB=Cfor the value.The environment variable is trimmed before being parsed with
str::trim.This PR also adds tests for the
parse_envvarfunction, which was missing.Review