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|
package config
import (
"fmt"
"os"
"strings"
)
func LoadEnv(filename string) (map[string]string, error) {
data, err := os.ReadFile(filename)
if err != nil {
return nil, err
}
values := map[string]string{}
for _, line := range strings.Split(string(data), "\n") {
line = strings.TrimSpace(line)
if line == "" || strings.HasPrefix(line, "#") {
continue
}
key, value, found := strings.Cut(line, "=")
if found {
values[strings.TrimSpace(key)] = strings.Trim(strings.TrimSpace(value), `"`)
}
}
return values, nil
}
func UpdateEnv(filename string, updates map[string]string) error {
data, err := os.ReadFile(filename)
if err != nil {
return err
}
lines := strings.Split(string(data), "\n")
for key, value := range updates {
found := false
for i, line := range lines {
existingKey, _, cut := strings.Cut(strings.TrimSpace(line), "=")
if cut && strings.TrimSpace(existingKey) == key {
lines[i] = key + "=" + value
found = true
break
}
}
if !found {
lines = append(lines, key+"="+value)
}
}
if err := os.WriteFile(filename, []byte(strings.Join(lines, "\n")+"\n"), 0o600); err != nil {
return fmt.Errorf("write env file: %w", err)
}
return nil
}
|