Narrow dependencies of pkg/system

CheckSystemDriveAndRemoveDriveLetter depends on pathdriver.PathDriver
unnecessarily. This depends on the minimal interface that it actually
needs, to avoid callers from unnecessarily bringing in a
containerd/continuity dependency.

Signed-off-by: Jon Johnson <jonjohnson@google.com>
This commit is contained in:
Jon Johnson 2019-09-05 18:45:39 -07:00
parent 3b23f90339
commit 57ade2652a
1 changed files with 7 additions and 3 deletions

View File

@ -5,8 +5,6 @@ import (
"path/filepath"
"runtime"
"strings"
"github.com/containerd/continuity/pathdriver"
)
const defaultUnixPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
@ -27,6 +25,12 @@ func DefaultPathEnv(os string) string {
}
// PathVerifier defines the subset of a PathDriver that CheckSystemDriveAndRemoveDriveLetter
// actually uses in order to avoid system depending on containerd/continuity.
type PathVerifier interface {
IsAbs(string) bool
}
// CheckSystemDriveAndRemoveDriveLetter verifies that a path, if it includes a drive letter,
// is the system drive.
// On Linux: this is a no-op.
@ -42,7 +46,7 @@ func DefaultPathEnv(os string) string {
// a --> a
// /a --> \a
// d:\ --> Fail
func CheckSystemDriveAndRemoveDriveLetter(path string, driver pathdriver.PathDriver) (string, error) {
func CheckSystemDriveAndRemoveDriveLetter(path string, driver PathVerifier) (string, error) {
if runtime.GOOS != "windows" || LCOWSupported() {
return path, nil
}