ef03b1e3df
Upgrade dependent version: github.com/open-policy-agent/opa v0.18.0 -> v0.45.0 Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io> Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>
37 lines
1.0 KiB
Go
37 lines
1.0 KiB
Go
package debug
|
|
|
|
import (
|
|
"io"
|
|
"io/ioutil"
|
|
"log"
|
|
)
|
|
|
|
// Debug allows printing debug messages.
|
|
type Debug interface {
|
|
// Printf prints, with a short file:line-number prefix
|
|
Printf(format string, args ...interface{})
|
|
// Writer returns the writer being written to, which may be
|
|
// `ioutil.Discard` if no debug output is requested.
|
|
Writer() io.Writer
|
|
|
|
// Output allows tweaking the calldepth used for figuring
|
|
// out which Go source file location is the interesting one,
|
|
// i.e., which is included in the debug message. Useful for
|
|
// setting up local helper methods.
|
|
Output(calldepth int, s string) error
|
|
}
|
|
|
|
// New returns a new `Debug` outputting to the passed `sink`.
|
|
func New(sink io.Writer) Debug {
|
|
flags := log.Lshortfile
|
|
return log.New(sink, "", flags)
|
|
}
|
|
|
|
// Discard returns a new `Debug` that doesn't output anything.
|
|
// Note: We're not implementing the methods here with noop stubs
|
|
// since doing this way, we can propagate the "discarding" via
|
|
// `(Debug).Writer()`.
|
|
func Discard() Debug {
|
|
return New(ioutil.Discard)
|
|
}
|