Expected behavior (what you expected to happen):
After calling viper.SetEnvPrefix("FOO_") and viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_", "-", "_")), and given viper.SetDefault("bar-1", "") and viper.SetDefault("toy_story.buzz-lightyear", "infinity-and-beyond"), a subsequent call to viper.SafeWriteConfigAs("vars.env") should a file named "vars.env" containing:
FOO_BAR_1=
FOO_TOY_STORY_BUZZ_LIGHTYEAR=infinity-and-beyond
Actual behavior (what actually happened): The file produced contains:
BAR_1=
TOY_STORY_BUZZ-LIGHTYEAR=infinity-and-beyond
Repl.it link:
Code reproducing the issue:
viper.SetEnvPrefix("FOO_")
viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_", "-", "_"))
viper.SetDefault("bar-1", "")
viper.SetDefault("toy_story.buzz-lightyear", "inifinity-and-beyond")
Environment: - Viper version: v1.1.3 - Config source: n/a - File format: env/dotenv
Anything else we should know?:
It looks like v.envKeyReplacer and v.mergeWithEnvPrefix aren't getting used in the marshalWriter call. It's using private implementation.
envName := strings.ToUpper(strings.Replace(key, ".", "_", -1))
(see https://github.com/spf13/viper/blob/master/viper.go#L1708)
Comment From: github-actions[bot]
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