56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
package env
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import (
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"errors"
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"fmt"
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"strconv"
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"github.com/qdm12/gluetun/internal/configuration/settings"
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)
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var (
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ErrSystemPUIDNotValid = errors.New("PUID is not valid")
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ErrSystemPGIDNotValid = errors.New("PGID is not valid")
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ErrSystemTimezoneNotValid = errors.New("timezone is not valid")
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)
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func (r *Reader) readSystem() (system settings.System, err error) {
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system.PUID, err = r.readID("PUID", "UID")
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if err != nil {
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return system, err
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}
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system.PGID, err = r.readID("PGID", "GID")
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if err != nil {
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return system, err
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}
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system.Timezone = getCleanedEnv("TZ")
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return system, nil
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}
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var ErrSystemIDNotValid = errors.New("system ID is not valid")
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func (r *Reader) readID(key, retroKey string) (
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id *uint32, err error) {
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idEnvKey, idString := r.getEnvWithRetro(key, retroKey)
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if idString == "" {
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return nil, nil //nolint:nilnil
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}
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const base = 10
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const bitSize = 64
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const max = uint64(^uint32(0))
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idUint64, err := strconv.ParseUint(idString, base, bitSize)
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if err != nil {
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return nil, fmt.Errorf("environment variable %s: %w: %s",
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idEnvKey, ErrSystemIDNotValid, err)
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} else if idUint64 > max {
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return nil, fmt.Errorf("environment variable %s: %w: %d: must be between 0 and %d",
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idEnvKey, ErrSystemIDNotValid, idUint64, max)
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}
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return uint32Ptr(uint32(idUint64)), nil
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}
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