moby/builder/remotecontext/mimetype.go
Daniel Nephin 4f0d95fa6e Add canonical import comment
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2018-02-05 16:51:57 -05:00

27 lines
891 B
Go

package remotecontext // import "github.com/docker/docker/builder/remotecontext"
import (
"mime"
"net/http"
)
// mimeTypes stores the MIME content type.
var mimeTypes = struct {
TextPlain string
OctetStream string
}{"text/plain", "application/octet-stream"}
// detectContentType returns a best guess representation of the MIME
// content type for the bytes at c. The value detected by
// http.DetectContentType is guaranteed not be nil, defaulting to
// application/octet-stream when a better guess cannot be made. The
// result of this detection is then run through mime.ParseMediaType()
// which separates the actual MIME string from any parameters.
func detectContentType(c []byte) (string, map[string]string, error) {
ct := http.DetectContentType(c)
contentType, args, err := mime.ParseMediaType(ct)
if err != nil {
return "", nil, err
}
return contentType, args, nil
}