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moby--moby
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Merge branch 'fs' of https://github.com/dotcloud/docker into fs

This commit is contained in:
Guillaume J. Charmes 2013-03-12 05:37:07 -07:00
parent 45a8bba15e de50c9c4e8
commit d24ce7dfd1
3 changed files with 116 additions and 85 deletions
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17
fs/changes.go
View File

@ -125,20 +125,3 @@ func (mp *Mountpoint) Reset() error {
}
return nil
}
// Open opens the named file for reading.
// func (fs *Filesystem) OpenFile(path string, flag int, perm os.FileMode) (*os.File, error) {
// if err := fs.EnsureMounted(); err != nil {
// return nil, err
// }
// return os.OpenFile(filepath.Join(fs.RootFS, path), flag, perm)
// }
// ReadDir reads the directory named by dirname, relative to the Filesystem's root,
// and returns a list of sorted directory entries
// func (fs *Filesystem) ReadDir(dirname string) ([]os.FileInfo, error) {
// if err := fs.EnsureMounted(); err != nil {
// return nil, err
// }
// return ioutil.ReadDir(filepath.Join(fs.RootFS, dirname))
// }

40
fs/store.go
View File

@ -8,6 +8,7 @@ import (
_ "github.com/mattn/go-sqlite3"
"github.com/shykes/gorp" //Forked to implement CreateTablesOpts
"io"
"io/ioutil"
"os"
"path"
"path/filepath"
@ -100,6 +101,26 @@ func (store *Store) List(pth string) ([]*Image, error) {
return store.imageList(images), nil
}
func (store *Store) Find(pth string) (*Image, error) {
pth = path.Clean(pth)
img, err := store.Get(pth)
if err != nil {
return nil, err
} else if img != nil {
return img, nil
}
images, err := store.orm.Select(Image{}, "select images.* from images, paths where Path=? and paths.Image=images.Id order by images.Created desc limit 1", pth)
if err != nil {
return nil, err
} else if len(images) < 1 {
return nil, nil
}
img = images[0].(*Image)
img.store = store
return img, nil
}
func (store *Store) Get(id string) (*Image, error) {
img, err := store.orm.Get(Image{}, id)
if img == nil {
@ -115,6 +136,7 @@ func (store *Store) Create(layerData Archive, parent *Image, pth, comment string
img := &Image{
Id: future.RandomId(),
Comment: comment,
Created: time.Now().Unix(),
store: store,
}
if parent != nil {
@ -166,6 +188,7 @@ type Image struct {
Id string
Parent string
Comment string
Created int64
store *Store `db:"-"`
}
@ -358,6 +381,23 @@ func (store *Store) FetchMountpoint(root, rw string) (*Mountpoint, error) {
return mp, nil
}
// OpenFile opens the named file for reading.
func (mp *Mountpoint) OpenFile(path string, flag int, perm os.FileMode) (*os.File, error) {
if err := mp.EnsureMounted(); err != nil {
return nil, err
}
return os.OpenFile(filepath.Join(mp.Root, path), flag, perm)
}
// ReadDir reads the directory named by dirname, relative to the Mountpoint's root,
// and returns a list of sorted directory entries
func (mp *Mountpoint) ReadDir(dirname string) ([]os.FileInfo, error) {
if err := mp.EnsureMounted(); err != nil {
return nil, err
}
return ioutil.ReadDir(filepath.Join(mp.Root, dirname))
}
func (store *Store) AddTag(imageId, tagName string) error {
if image, err := store.Get(imageId); err != nil {
return err

144
server/server.go
View File

@ -88,10 +88,18 @@ func (srv *Server) CmdWait(stdin io.ReadCloser, stdout io.Writer, args ...string
// 'docker info': display system-wide information.
func (srv *Server) CmdInfo(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
images, _ := srv.images.Images()
var imgcount int
if images == nil {
imgcount = 0
} else {
imgcount = len(images)
}
fmt.Fprintf(stdout, "containers: %d\nversion: %s\nimages: %d\n",
len(srv.containers.List()),
VERSION,
0) // FIXME: Number of images
imgcount)
return nil
}
@ -210,73 +218,73 @@ func (srv *Server) CmdMount(stdin io.ReadCloser, stdout io.Writer, args ...strin
return nil
}
// func (srv *Server) CmdCat(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
// cmd := rcli.Subcmd(stdout, "cat", "[OPTIONS] CONTAINER PATH", "write the contents of a container's file to standard output")
// if err := cmd.Parse(args); err != nil {
// cmd.Usage()
// return nil
// }
// if cmd.NArg() < 2 {
// cmd.Usage()
// return nil
// }
// name, path := cmd.Arg(0), cmd.Arg(1)
// if container := srv.containers.Get(name); container != nil {
// if f, err := container.Mountpoint.OpenFile(path, os.O_RDONLY, 0); err != nil {
// return err
// } else if _, err := io.Copy(stdout, f); err != nil {
// return err
// }
// return nil
// }
// return errors.New("No such container: " + name)
// }
func (srv *Server) CmdCat(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "cat", "[OPTIONS] CONTAINER PATH", "write the contents of a container's file to standard output")
if err := cmd.Parse(args); err != nil {
cmd.Usage()
return nil
}
if cmd.NArg() < 2 {
cmd.Usage()
return nil
}
name, path := cmd.Arg(0), cmd.Arg(1)
if container := srv.containers.Get(name); container != nil {
if f, err := container.Mountpoint.OpenFile(path, os.O_RDONLY, 0); err != nil {
return err
} else if _, err := io.Copy(stdout, f); err != nil {
return err
}
return nil
}
return errors.New("No such container: " + name)
}
// func (srv *Server) CmdWrite(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
// cmd := rcli.Subcmd(stdout, "write", "[OPTIONS] CONTAINER PATH", "write the contents of standard input to a container's file")
// if err := cmd.Parse(args); err != nil {
// cmd.Usage()
// return nil
// }
// if cmd.NArg() < 2 {
// cmd.Usage()
// return nil
// }
// name, path := cmd.Arg(0), cmd.Arg(1)
// if container := srv.containers.Get(name); container != nil {
// if f, err := container.Mountpoint.OpenFile(path, os.O_WRONLY|os.O_CREATE, 0600); err != nil {
// return err
// } else if _, err := io.Copy(f, stdin); err != nil {
// return err
// }
// return nil
// }
// return errors.New("No such container: " + name)
// }
func (srv *Server) CmdWrite(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "write", "[OPTIONS] CONTAINER PATH", "write the contents of standard input to a container's file")
if err := cmd.Parse(args); err != nil {
cmd.Usage()
return nil
}
if cmd.NArg() < 2 {
cmd.Usage()
return nil
}
name, path := cmd.Arg(0), cmd.Arg(1)
if container := srv.containers.Get(name); container != nil {
if f, err := container.Mountpoint.OpenFile(path, os.O_WRONLY|os.O_CREATE, 0600); err != nil {
return err
} else if _, err := io.Copy(f, stdin); err != nil {
return err
}
return nil
}
return errors.New("No such container: " + name)
}
// func (srv *Server) CmdLs(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
// cmd := rcli.Subcmd(stdout, "ls", "[OPTIONS] CONTAINER PATH", "List the contents of a container's directory")
// if err := cmd.Parse(args); err != nil {
// cmd.Usage()
// return nil
// }
// if cmd.NArg() < 2 {
// cmd.Usage()
// return nil
// }
// name, path := cmd.Arg(0), cmd.Arg(1)
// if container := srv.containers.Get(name); container != nil {
// if files, err := container.Mountpoint.ReadDir(path); err != nil {
// return err
// } else {
// for _, f := range files {
// fmt.Fprintln(stdout, f.Name())
// }
// }
// return nil
// }
// return errors.New("No such container: " + name)
// }
func (srv *Server) CmdLs(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "ls", "[OPTIONS] CONTAINER PATH", "List the contents of a container's directory")
if err := cmd.Parse(args); err != nil {
cmd.Usage()
return nil
}
if cmd.NArg() < 2 {
cmd.Usage()
return nil
}
name, path := cmd.Arg(0), cmd.Arg(1)
if container := srv.containers.Get(name); container != nil {
if files, err := container.Mountpoint.ReadDir(path); err != nil {
return err
} else {
for _, f := range files {
fmt.Fprintln(stdout, f.Name())
}
}
return nil
}
return errors.New("No such container: " + name)
}
func (srv *Server) CmdInspect(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "inspect", "[OPTIONS] CONTAINER", "Return low-level information on a container")
@ -484,7 +492,7 @@ func (srv *Server) CmdImages(stdin io.ReadCloser, stdout io.Writer, args ...stri
for idx, field := range []string{
/* NAME */ name,
/* ID */ img.Id,
/* CREATED */ future.HumanDuration(time.Now().Sub(time.Now())) + " ago", // FIXME: should be img.Created
/* CREATED */ future.HumanDuration(time.Now().Sub(time.Unix(img.Created, 0))) + " ago",
/* PARENT */ img.Parent,
} {
if idx == 0 {
@ -827,7 +835,7 @@ func (srv *Server) CmdRun(stdin io.ReadCloser, stdout io.Writer, args ...string)
cmdline = []string{"/bin/bash", "-i"}
}
// Find the image
img, err := srv.images.Get(name)
img, err := srv.images.Find(name)
if err != nil {
return err
} else if img == nil {