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moby--moby/daemon/archive_unix.go
Anusha Ragunathan 9c332b164f Remove package daemonbuilder.
Currently, daemonbuilder package (part of daemon) implemented the
builder backend. However, it was a very thin wrapper around daemon
methods and caused an implementation dependency for api/server build
endpoint. api/server buildrouter should only know about the backend
implementing the /build API endpoint.

Removing daemonbuilder involved moving build specific methods to
respective files in the daemon, where they fit naturally.

Signed-off-by: Anusha Ragunathan <anusha@docker.com>
2016-02-01 09:57:38 -08:00

57 lines
1.8 KiB
Go

// +build !windows
package daemon
import (
"github.com/docker/docker/container"
"os"
"path/filepath"
)
// checkIfPathIsInAVolume checks if the path is in a volume. If it is, it
// cannot be in a read-only volume. If it is not in a volume, the container
// cannot be configured with a read-only rootfs.
func checkIfPathIsInAVolume(container *container.Container, absPath string) (bool, error) {
var toVolume bool
for _, mnt := range container.MountPoints {
if toVolume = mnt.HasResource(absPath); toVolume {
if mnt.RW {
break
}
return false, ErrVolumeReadonly
}
}
return toVolume, nil
}
func fixPermissions(source, destination string, uid, gid int, destExisted bool) error {
// If the destination didn't already exist, or the destination isn't a
// directory, then we should Lchown the destination. Otherwise, we shouldn't
// Lchown the destination.
destStat, err := os.Stat(destination)
if err != nil {
// This should *never* be reached, because the destination must've already
// been created while untar-ing the context.
return err
}
doChownDestination := !destExisted || !destStat.IsDir()
// We Walk on the source rather than on the destination because we don't
// want to change permissions on things we haven't created or modified.
return filepath.Walk(source, func(fullpath string, info os.FileInfo, err error) error {
// Do not alter the walk root iff. it existed before, as it doesn't fall under
// the domain of "things we should chown".
if !doChownDestination && (source == fullpath) {
return nil
}
// Path is prefixed by source: substitute with destination instead.
cleaned, err := filepath.Rel(source, fullpath)
if err != nil {
return err
}
fullpath = filepath.Join(destination, cleaned)
return os.Lchown(fullpath, uid, gid)
})
}