forked from testcontainers/testcontainers-go
/
processor.go
44 lines (34 loc) · 920 Bytes
/
processor.go
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package exec
import (
"bytes"
"io"
"github.com/docker/docker/pkg/stdcopy"
)
// ProcessOptions defines options applicable to the reader processor
type ProcessOptions struct {
Reader io.Reader
}
// ProcessOption defines a common interface to modify the reader processor
// These options can be passed to the Exec function in a variadic way to customize the returned Reader instance
type ProcessOption interface {
Apply(opts *ProcessOptions)
}
type ProcessOptionFunc func(opts *ProcessOptions)
func (fn ProcessOptionFunc) Apply(opts *ProcessOptions) {
fn(opts)
}
func Multiplexed() ProcessOption {
return ProcessOptionFunc(func(opts *ProcessOptions) {
done := make(chan struct{})
var outBuff bytes.Buffer
var errBuff bytes.Buffer
go func() {
if _, err := stdcopy.StdCopy(&outBuff, &errBuff, opts.Reader); err != nil {
return
}
close(done)
}()
<-done
opts.Reader = &outBuff
})
}