77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// ALR - Any Linux Repository
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// Copyright (C) 2025 The ALR Authors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package config
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import (
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"strings"
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"github.com/knadh/koanf/providers/env"
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"github.com/knadh/koanf/v2"
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"golang.org/x/text/cases"
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"golang.org/x/text/language"
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)
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type EnvConfig struct {
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k *koanf.Koanf
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}
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func NewEnvConfig() *EnvConfig {
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return &EnvConfig{
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k: koanf.New("."),
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}
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}
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func (c *EnvConfig) koanf() *koanf.Koanf {
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return c.k
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}
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func (c *EnvConfig) Load() error {
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allowedKeys := map[string]struct{}{
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"ALR_LOG_LEVEL": {},
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"ALR_PAGER_STYLE": {},
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"ALR_AUTO_PULL": {},
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}
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err := c.k.Load(env.Provider("ALR_", ".", func(s string) string {
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_, ok := allowedKeys[s]
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if !ok {
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return ""
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}
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withoutPrefix := strings.TrimPrefix(s, "ALR_")
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lowered := strings.ToLower(withoutPrefix)
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dotted := strings.ReplaceAll(lowered, "__", ".")
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parts := strings.Split(dotted, ".")
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for i, part := range parts {
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if strings.Contains(part, "_") {
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parts[i] = toCamelCase(part)
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}
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}
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return strings.Join(parts, ".")
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}), nil)
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return err
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}
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func toCamelCase(s string) string {
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parts := strings.Split(s, "_")
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for i := 1; i < len(parts); i++ {
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if len(parts[i]) > 0 {
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parts[i] = cases.Title(language.Und, cases.NoLower).String(parts[i])
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}
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}
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return strings.Join(parts, "")
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}
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