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Move Daemon.containerCopy to daemon/archive.go

Browse source 
It's the only place where it's used.

Signed-off-by: David Calavera <david.calavera@gmail.com>
This commit is contained in:
David Calavera 2015-11-02 20:19:17 -05:00
parent 89decc4446
commit ebf707ec5f
2 changed files with 65 additions and 66 deletions
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65
daemon/archive.go
View file

@ -322,3 +322,68 @@ func (daemon *Daemon) containerExtractToDir(container *Container, path string, n
return nil
}
func (daemon *Daemon) containerCopy(container *Container, resource string) (rc io.ReadCloser, err error) {
container.Lock()
defer func() {
if err != nil {
// Wait to unlock the container until the archive is fully read
// (see the ReadCloseWrapper func below) or if there is an error
// before that occurs.
container.Unlock()
}
}()
if err := daemon.Mount(container); err != nil {
return nil, err
}
defer func() {
if err != nil {
// unmount any volumes
container.unmountVolumes(true)
// unmount the container's rootfs
daemon.Unmount(container)
}
}()
if err := container.mountVolumes(); err != nil {
return nil, err
}
basePath, err := container.GetResourcePath(resource)
if err != nil {
return nil, err
}
stat, err := os.Stat(basePath)
if err != nil {
return nil, err
}
var filter []string
if !stat.IsDir() {
d, f := filepath.Split(basePath)
basePath = d
filter = []string{f}
} else {
filter = []string{filepath.Base(basePath)}
basePath = filepath.Dir(basePath)
}
archive, err := archive.TarWithOptions(basePath, &archive.TarOptions{
Compression: archive.Uncompressed,
IncludeFiles: filter,
})
if err != nil {
return nil, err
}
reader := ioutils.NewReadCloserWrapper(archive, func() error {
err := archive.Close()
container.unmountVolumes(true)
daemon.Unmount(container)
container.Unlock()
return err
})
daemon.logContainerEvent(container, "copy")
return reader, nil
}

66
daemon/container.go
View file

@ -20,7 +20,6 @@ import (
"github.com/docker/docker/daemon/logger/jsonfilelog"
"github.com/docker/docker/daemon/network"
derr "github.com/docker/docker/errors"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/broadcaster"
"github.com/docker/docker/pkg/fileutils"
"github.com/docker/docker/pkg/ioutils"
@ -306,71 +305,6 @@ func validateID(id string) error {
return nil
}
func (daemon *Daemon) containerCopy(container *Container, resource string) (rc io.ReadCloser, err error) {
container.Lock()
defer func() {
if err != nil {
// Wait to unlock the container until the archive is fully read
// (see the ReadCloseWrapper func below) or if there is an error
// before that occurs.
container.Unlock()
}
}()
if err := daemon.Mount(container); err != nil {
return nil, err
}
defer func() {
if err != nil {
// unmount any volumes
container.unmountVolumes(true)
// unmount the container's rootfs
daemon.Unmount(container)
}
}()
if err := container.mountVolumes(); err != nil {
return nil, err
}
basePath, err := container.GetResourcePath(resource)
if err != nil {
return nil, err
}
stat, err := os.Stat(basePath)
if err != nil {
return nil, err
}
var filter []string
if !stat.IsDir() {
d, f := filepath.Split(basePath)
basePath = d
filter = []string{f}
} else {
filter = []string{filepath.Base(basePath)}
basePath = filepath.Dir(basePath)
}
archive, err := archive.TarWithOptions(basePath, &archive.TarOptions{
Compression: archive.Uncompressed,
IncludeFiles: filter,
})
if err != nil {
return nil, err
}
reader := ioutils.NewReadCloserWrapper(archive, func() error {
err := archive.Close()
container.unmountVolumes(true)
daemon.Unmount(container)
container.Unlock()
return err
})
daemon.logContainerEvent(container, "copy")
return reader, nil
}
// Returns true if the container exposes a certain port
func (container *Container) exposes(p nat.Port) bool {
_, exists := container.Config.ExposedPorts[p]