mirror of
https://github.com/qdm12/ddns-updater.git
synced 2026-04-05 08:54:09 -04:00
c16287e48a
- remove bad calculation of "our own" umask - remove umask "union effect" - do not touch system umask unless `UMASK` is set - set system umask only if `UMASK` is set
74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
package config
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import (
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"fmt"
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"io/fs"
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"path/filepath"
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"strconv"
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"github.com/qdm12/gosettings"
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"github.com/qdm12/gosettings/reader"
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"github.com/qdm12/gotree"
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)
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type Paths struct {
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DataDir *string
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Config *string
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// Umask is the custom umask to use for the system, if different than zero.
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// If it is set to zero, the system umask is unchanged.
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// It cannot be nil in the internal state.
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Umask *fs.FileMode
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}
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func (p *Paths) setDefaults() {
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p.DataDir = gosettings.DefaultPointer(p.DataDir, "./data")
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defaultConfig := filepath.Join(*p.DataDir, "config.json")
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p.Config = gosettings.DefaultPointer(p.Config, defaultConfig)
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p.Umask = gosettings.DefaultPointer(p.Umask, fs.FileMode(0))
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}
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func (p Paths) Validate() (err error) {
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return nil
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}
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func (p Paths) String() string {
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return p.toLinesNode().String()
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}
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func (p Paths) toLinesNode() *gotree.Node {
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node := gotree.New("Paths")
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node.Appendf("Data directory: %s", *p.DataDir)
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node.Appendf("Config file: %s", *p.Config)
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umaskString := "system default"
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if *p.Umask != 0 {
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umaskString = p.Umask.String()
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}
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node.Appendf("Umask: %s", umaskString)
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return node
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}
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func (p *Paths) read(reader *reader.Reader) (err error) {
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p.DataDir = reader.Get("DATADIR")
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p.Config = reader.Get("CONFIG_FILEPATH")
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umaskString := reader.String("UMASK")
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if umaskString != "" {
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umask, err := parseUmask(umaskString)
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if err != nil {
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return fmt.Errorf("parse umask: %w", err)
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}
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p.Umask = &umask
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}
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return nil
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}
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func parseUmask(s string) (umask fs.FileMode, err error) {
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const base, bitSize = 8, 32
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umaskUint64, err := strconv.ParseUint(s, base, bitSize)
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if err != nil {
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return 0, err
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}
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return fs.FileMode(umaskUint64), nil
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}
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