Open jaeheonji opened 7 months ago
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Preflight Checklist
Viper Version
1.8.1
Go Version
1.21.4
Config Source
Environment variables
Format
No response
Repl.it link
No response
Code reproducing the issue
Expected Behavior
Run with Environment Variables
Expected Output (stdout)
Actual Behavior
Decode for
Time
type does not work properly.Steps To Reproduce
No response
Additional Information
After version
1.8.0
was released, I confirmed new feature aboutUnmarshal
. And in general types, it operates normally as expected above.However,
Time
does not work properly. I looked for the reason and I think it related in theflattenAndMergeMap
function.https://github.com/spf13/viper/blob/9154b900c34ad9d88897f7e5288ce43f457f698b/viper.go#L2092-L2105
The reasons why this problem occurs are as follows:
map
. (default caseshadow[strings.ToLower(fullKey)] = true
)Time Struct
, when inferring the type withvalue.(type)
, it is considered a map. Therefore, it is not considered the key value of an environment variable.This problem does not occur if I set the value in advance through
SetDefault
. However, looking at #1429, it doesn't seem like the intention is to always useSetDefault
. So I thought of this problem as a bug.