2705ca5bf3
Layered configuration management (defaults → file → env → flags) with viper backend, YAML persistence via go-io Medium, and framework service. Moved from forge.lthn.ai/core/go/pkg/config to standalone module. Co-Authored-By: Virgil <virgil@lethean.io>
40 lines
808 B
Go
40 lines
808 B
Go
package config
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import (
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"os"
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"strings"
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)
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// LoadEnv parses environment variables with the given prefix and returns
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// them as a flat map with dot-notation keys.
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//
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// For example, with prefix "CORE_CONFIG_":
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//
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// CORE_CONFIG_FOO_BAR=baz -> {"foo.bar": "baz"}
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// CORE_CONFIG_EDITOR=vim -> {"editor": "vim"}
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func LoadEnv(prefix string) map[string]any {
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result := make(map[string]any)
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for _, env := range os.Environ() {
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if !strings.HasPrefix(env, prefix) {
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continue
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}
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parts := strings.SplitN(env, "=", 2)
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if len(parts) != 2 {
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continue
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}
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name := parts[0]
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value := parts[1]
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// Strip prefix and convert to dot notation
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key := strings.TrimPrefix(name, prefix)
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key = strings.ToLower(key)
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key = strings.ReplaceAll(key, "_", ".")
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result[key] = value
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}
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return result
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}
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