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archive: Detect file changes to capability bits

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Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
This commit is contained in:
Alexander Larsson 2014-01-17 10:51:59 +01:00
parent c8428d77fd
commit 87ca750cdc
1 changed files with 10 additions and 5 deletions
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15
archive/changes.go
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@ -1,6 +1,7 @@
package archive
import (
"bytes"
"code.google.com/p/go/src/pkg/archive/tar"
"fmt"
"github.com/dotcloud/docker/utils"
@ -126,10 +127,11 @@ func Changes(layers []string, rw string) ([]Change, error) {
}
type FileInfo struct {
parent *FileInfo
name string
stat syscall.Stat_t
children map[string]*FileInfo
parent *FileInfo
name string
stat syscall.Stat_t
children map[string]*FileInfo
capability []byte
}
func (root *FileInfo) LookUp(path string) *FileInfo {
@ -200,7 +202,8 @@ func (info *FileInfo) addChanges(oldInfo *FileInfo, changes *[]Change) {
oldStat.Rdev != newStat.Rdev ||
// Don't look at size for dirs, its not a good measure of change
(oldStat.Size != newStat.Size && oldStat.Mode&syscall.S_IFDIR != syscall.S_IFDIR) ||
!sameFsTimeSpec(getLastModification(oldStat), getLastModification(newStat)) {
!sameFsTimeSpec(getLastModification(oldStat), getLastModification(newStat)) ||
bytes.Compare(oldChild.capability, newChild.capability) != 0 {
change := Change{
Path: newChild.path(),
Kind: ChangeModify,
@ -275,6 +278,8 @@ func collectFileInfo(sourceDir string) (*FileInfo, error) {
return err
}
info.capability, _ = Lgetxattr(path, "security.capability")
parent.children[info.name] = info
return nil