spf13--viper/finder.go
Mark Sagi-Kazar 7dbe493dd1 fix: do not allow setting dependencies to nil values
Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
2024-06-24 18:23:40 +02:00

55 lines
1,002 B
Go

package viper
import (
"errors"
"github.com/spf13/afero"
)
// WithFinder sets a custom [Finder].
func WithFinder(f Finder) Option {
return optionFunc(func(v *Viper) {
if f == nil {
return
}
v.finder = f
})
}
// Finder looks for files and directories in an [afero.Fs] filesystem.
type Finder interface {
Find(fsys afero.Fs) ([]string, error)
}
// Finders combines multiple finders into one.
func Finders(finders ...Finder) Finder {
return &combinedFinder{finders: finders}
}
// combinedFinder is a Finder that combines multiple finders.
type combinedFinder struct {
finders []Finder
}
// Find implements the [Finder] interface.
func (c *combinedFinder) Find(fsys afero.Fs) ([]string, error) {
var results []string
var errs []error
for _, finder := range c.finders {
if finder == nil {
continue
}
r, err := finder.Find(fsys)
if err != nil {
errs = append(errs, err)
continue
}
results = append(results, r...)
}
return results, errors.Join(errs...)
}