birthday-notifier/pkg/config/config.go

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// Package config contains parser and structure for the configuration
// of the tool
package config
import (
"fmt"
"io"
"os"
"time"
"git.luzifer.io/luzifer/birthday-notifier/pkg/formatter"
"github.com/Luzifer/go_helpers/v2/fieldcollection"
"github.com/sirupsen/logrus"
"gopkg.in/yaml.v3"
)
// WebdavPrincipalNextcloud is the principal default used for config
// files on parse and represents the principal format used by Nextcloud
const WebdavPrincipalNextcloud = "principals/users/%s"
type (
// File contains the structure of the YAML configuration file
File struct {
NotifyDaysInAdvance []int `yaml:"notifyDaysInAdvance"`
Notifiers []NotifierConfig `yaml:"notifiers"`
Template string `yaml:"template"`
Webdav WebdavConfig `yaml:"webdav"`
}
// NotifierConfig contains the type of the notifier and the settings
// for it required to execute
NotifierConfig struct {
Type string `yaml:"type"`
Settings *fieldcollection.FieldCollection `yaml:"settings"`
}
// WebdavConfig defines how to interact with the Webdav server
WebdavConfig struct {
BaseURL string `yaml:"baseURL"`
FetchInterval time.Duration `yaml:"fetchInterval"`
Pass string `yaml:"pass"`
Principal string `yaml:"principal"`
User string `yaml:"user"`
}
)
// Load parses the given reader over a default configuration replacing
// the fields specified in the reader
func Load(r io.Reader) (f File, err error) {
f = defaultConfig()
dec := yaml.NewDecoder(r)
dec.KnownFields(true)
if err = dec.Decode(&f); err != nil {
return f, fmt.Errorf("decoding yaml: %w", err)
}
return f, nil
}
// LoadFromFile is a convenience wrapper around Load to read the config
// from file system
func LoadFromFile(filePath string) (f File, err error) {
inFile, err := os.Open(filePath) //#nosec G304 -- Intended to load a given path
if err != nil {
return f, fmt.Errorf("opening file: %w", err)
}
defer func() {
if err := inFile.Close(); err != nil {
logrus.WithError(err).Error("closing config file (leaked fd)")
}
}()
return Load(inFile)
}
func defaultConfig() File {
return File{
NotifyDaysInAdvance: nil,
Template: formatter.DefaultTemplate,
Webdav: WebdavConfig{
FetchInterval: time.Hour,
Principal: WebdavPrincipalNextcloud,
},
}
}