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confloader.go
36 lines (30 loc) · 923 Bytes
/
confloader.go
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package confloader
import (
"io"
"os"
)
type (
configFileLoader func(string) (io.Reader, error)
extconfigLoader func([]string, io.Reader) (io.Reader, error)
)
var (
EffectiveConfigFileLoader configFileLoader
EffectiveExtConfigLoader extconfigLoader
)
// LoadConfig reads from a path/url/stdin
// actual work is in external module
func LoadConfig(file string) (io.Reader, error) {
if EffectiveConfigFileLoader == nil {
newError("external config module not loaded, reading from stdin").AtInfo().WriteToLog()
return os.Stdin, nil
}
return EffectiveConfigFileLoader(file)
}
// LoadExtConfig calls xctl to handle multiple config
// the actual work also in external module
func LoadExtConfig(files []string, reader io.Reader) (io.Reader, error) {
if EffectiveExtConfigLoader == nil {
return nil, newError("external config module not loaded").AtError()
}
return EffectiveExtConfigLoader(files, reader)
}