internal/config/config.go (view raw)
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import (
"errors"
"maps"
"net/url"
"os"
"time"
"alin.ovh/x/log"
"github.com/Southclaws/fault"
"github.com/Southclaws/fault/fmsg"
"github.com/creasty/defaults"
"github.com/pelletier/go-toml/v2"
)
var (
Version string
DevMode bool
)
const MaxResultsShowAll = 10_000
type URL struct {
*url.URL
}
func (u *URL) MarshalText() ([]byte, error) {
return []byte(u.String()), nil
}
func (u *URL) UnmarshalText(text []byte) (err error) {
u.URL, err = url.Parse(string(text))
if err != nil {
return fault.Wrap(err, fmsg.Withf("could not parse URL %s", string(text)))
}
return nil
}
func (u *URL) JoinPath(elems ...string) *URL {
return &URL{u.URL.JoinPath(elems...)}
}
func (u *URL) AddRawQuery(key, value string) *URL {
u.RawQuery = key + "=" + value
return u
}
type Duration struct {
time.Duration
}
func (d *Duration) MarshalText() ([]byte, error) {
return []byte(d.String()), nil
}
func (d *Duration) UnmarshalText(text []byte) (err error) {
d.Duration, err = time.ParseDuration(string(text))
if err != nil {
return fault.Wrap(err, fmsg.Withf("could not parse duration %s", string(text)))
}
return nil
}
func mustURL(in string) (u URL) {
var err error
u.URL, err = url.Parse(in)
if err != nil {
panic(fault.Newf("URL cannot be parsed: %s", in))
}
return u
}
// this type is necessary as nix's `fromTOML` doesn't support TOML date/time formats
type LocalTime struct {
toml.LocalTime
}
func (t *LocalTime) MarshalText() ([]byte, error) {
b, err := t.LocalTime.MarshalText()
if err != nil {
return nil, fault.Wrap(err, fmsg.With("could not marshal time value"))
}
return b, nil
}
func (t *LocalTime) UnmarshalText(in []byte) (err error) {
err = t.LocalTime.UnmarshalText(in)
if err != nil {
return fault.Wrap(err, fmsg.With("could not parse time value"))
}
return nil
}
func mustLocalTime(in string) (time LocalTime) {
err := time.UnmarshalText([]byte(in))
if err != nil {
panic(fault.Newf("Could not parse time: %s", in))
}
return
}
func Load(filename string, target *Config) error {
//nolint:forbidigo // need to read config file from anywhere
f, err := os.Open(filename)
if err != nil {
return fault.Wrap(err, fmsg.With("reading config failed"))
}
defer f.Close()
dec := toml.NewDecoder(f)
dec.DisallowUnknownFields()
err = dec.Decode(&target)
return fault.Wrap(err)
}
func GetConfig(filename string, log *log.Logger) (*Config, error) {
log.Debug("reading config", "filename", filename)
config := DefaultConfig
if filename != "" {
err := Load(filename, &config)
if err != nil {
var tomlError *toml.DecodeError
if errors.As(err, &tomlError) {
return nil, fault.Wrap(err, fmsg.With(tomlError.Error()))
}
return nil, fault.Wrap(err, fmsg.With("config error"))
}
}
DevMode = config.Web.Environment == "development"
config.Web.ContentSecurityPolicy.ScriptSrc = append(
config.Web.ContentSecurityPolicy.ScriptSrc,
config.Web.BaseURL.JoinPath("/static/").String(),
)
maps.DeleteFunc(config.Importer.Sources, func(_ string, v *Source) bool {
return !v.Enable
})
for k, v := range config.Importer.Sources {
if v.Key == "" {
v.Key = k
}
if err := defaults.Set(v); err != nil {
return nil, fault.Wrap(err, fmsg.With("setting defaults failed"))
}
}
return &config, nil
}
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