package arvados
import (
+ "fmt"
+ "io"
+ "io/ioutil"
"net/http"
"os"
+ "strings"
+ "syscall"
"time"
check "gopkg.in/check.v1"
c.Check(names, check.DeepEquals, []string{"baz"})
_, err = s.fs.OpenFile("/by_id/"+fixtureNonexistentCollection, os.O_RDWR|os.O_CREATE, 0755)
- c.Check(err, check.Equals, ErrInvalidArgument)
+ c.Check(err, ErrorIs, ErrInvalidOperation)
err = s.fs.Rename("/by_id/"+fixtureFooCollection, "/by_id/beep")
- c.Check(err, check.Equals, ErrInvalidArgument)
+ c.Check(err, ErrorIs, ErrInvalidOperation)
err = s.fs.Rename("/by_id/"+fixtureFooCollection+"/foo", "/by_id/beep")
- c.Check(err, check.Equals, ErrInvalidArgument)
+ c.Check(err, ErrorIs, ErrInvalidOperation)
_, err = s.fs.Stat("/by_id/beep")
c.Check(err, check.Equals, os.ErrNotExist)
err = s.fs.Rename("/by_id/"+fixtureFooCollection+"/foo", "/by_id/"+fixtureFooCollection+"/bar")
c.Check(err, check.IsNil)
err = s.fs.Rename("/by_id", "/beep")
- c.Check(err, check.Equals, ErrInvalidArgument)
+ c.Check(err, ErrorIs, ErrInvalidOperation)
+}
+
+// Copy subtree from OS src to dst path inside fs. If src is a
+// directory, dst must exist and be a directory.
+func copyFromOS(fs FileSystem, dst, src string) error {
+ inf, err := os.Open(src)
+ if err != nil {
+ return err
+ }
+ defer inf.Close()
+ dirents, err := inf.Readdir(-1)
+ if e, ok := err.(*os.PathError); ok {
+ if e, ok := e.Err.(syscall.Errno); ok {
+ if e == syscall.ENOTDIR {
+ err = syscall.ENOTDIR
+ }
+ }
+ }
+ if err == syscall.ENOTDIR {
+ outf, err := fs.OpenFile(dst, os.O_CREATE|os.O_EXCL|os.O_TRUNC|os.O_WRONLY, 0700)
+ if err != nil {
+ return fmt.Errorf("open %s: %s", dst, err)
+ }
+ defer outf.Close()
+ _, err = io.Copy(outf, inf)
+ if err != nil {
+ return fmt.Errorf("%s: copying data from %s: %s", dst, src, err)
+ }
+ err = outf.Close()
+ if err != nil {
+ return err
+ }
+ } else if err != nil {
+ return fmt.Errorf("%s: readdir: %T %s", src, err, err)
+ } else {
+ {
+ d, err := fs.Open(dst)
+ if err != nil {
+ return fmt.Errorf("opendir(%s): %s", dst, err)
+ }
+ d.Close()
+ }
+ for _, ent := range dirents {
+ if ent.Name() == "." || ent.Name() == ".." {
+ continue
+ }
+ dstname := dst + "/" + ent.Name()
+ if ent.IsDir() {
+ err = fs.Mkdir(dstname, 0700)
+ if err != nil {
+ return fmt.Errorf("mkdir %s: %s", dstname, err)
+ }
+ }
+ err = copyFromOS(fs, dstname, src+"/"+ent.Name())
+ if err != nil {
+ return err
+ }
+ }
+ }
+ return nil
+}
+
+func (s *SiteFSSuite) TestSnapshotSplice(c *check.C) {
+ s.fs.MountProject("home", "")
+ thisfile, err := ioutil.ReadFile("fs_site_test.go")
+ c.Assert(err, check.IsNil)
+
+ var src1 Collection
+ err = s.client.RequestAndDecode(&src1, "POST", "arvados/v1/collections", nil, map[string]interface{}{
+ "collection": map[string]string{
+ "name": "TestSnapshotSplice src1",
+ "owner_uuid": fixtureAProjectUUID,
+ },
+ })
+ c.Assert(err, check.IsNil)
+ defer s.client.RequestAndDecode(nil, "DELETE", "arvados/v1/collections/"+src1.UUID, nil, nil)
+ err = s.fs.Sync()
+ c.Assert(err, check.IsNil)
+ err = copyFromOS(s.fs, "/home/A Project/TestSnapshotSplice src1", "..") // arvados.git/sdk/go
+ c.Assert(err, check.IsNil)
+
+ var src2 Collection
+ err = s.client.RequestAndDecode(&src2, "POST", "arvados/v1/collections", nil, map[string]interface{}{
+ "collection": map[string]string{
+ "name": "TestSnapshotSplice src2",
+ "owner_uuid": fixtureAProjectUUID,
+ },
+ })
+ c.Assert(err, check.IsNil)
+ defer s.client.RequestAndDecode(nil, "DELETE", "arvados/v1/collections/"+src2.UUID, nil, nil)
+ err = s.fs.Sync()
+ c.Assert(err, check.IsNil)
+ err = copyFromOS(s.fs, "/home/A Project/TestSnapshotSplice src2", "..") // arvados.git/sdk/go
+ c.Assert(err, check.IsNil)
+
+ var dst Collection
+ err = s.client.RequestAndDecode(&dst, "POST", "arvados/v1/collections", nil, map[string]interface{}{
+ "collection": map[string]string{
+ "name": "TestSnapshotSplice dst",
+ "owner_uuid": fixtureAProjectUUID,
+ },
+ })
+ c.Assert(err, check.IsNil)
+ defer s.client.RequestAndDecode(nil, "DELETE", "arvados/v1/collections/"+dst.UUID, nil, nil)
+ err = s.fs.Sync()
+ c.Assert(err, check.IsNil)
+
+ dstPath := "/home/A Project/TestSnapshotSplice dst"
+ err = copyFromOS(s.fs, dstPath, "..") // arvados.git/sdk/go
+ c.Assert(err, check.IsNil)
+
+ // Snapshot directory
+ snap1, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice src1/ctxlog")
+ c.Check(err, check.IsNil)
+ // Attach same snapshot twice, at paths that didn't exist before
+ err = Splice(s.fs, dstPath+"/ctxlog-copy", snap1)
+ c.Check(err, check.IsNil)
+ err = Splice(s.fs, dstPath+"/ctxlog-copy2", snap1)
+ c.Check(err, check.IsNil)
+ // Splicing a snapshot twice results in two independent copies
+ err = s.fs.Rename(dstPath+"/ctxlog-copy2/log.go", dstPath+"/ctxlog-copy/log2.go")
+ c.Check(err, check.IsNil)
+ _, err = s.fs.Open(dstPath + "/ctxlog-copy2/log.go")
+ c.Check(err, check.Equals, os.ErrNotExist)
+ f, err := s.fs.Open(dstPath + "/ctxlog-copy/log.go")
+ if c.Check(err, check.IsNil) {
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf), check.Not(check.Equals), "")
+ f.Close()
+ }
+
+ // Snapshot regular file
+ snapFile, err := Snapshot(s.fs, "/home/A Project/TestSnapshotSplice src1/arvados/fs_site_test.go")
+ c.Check(err, check.IsNil)
+ // Replace dir with file
+ err = Splice(s.fs, dstPath+"/ctxlog-copy2", snapFile)
+ c.Check(err, check.IsNil)
+ if f, err := s.fs.Open(dstPath + "/ctxlog-copy2"); c.Check(err, check.IsNil) {
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf), check.Equals, string(thisfile))
+ }
+
+ // Cannot splice a file onto a collection root; cannot splice
+ // anything to a target outside a collection.
+ for _, badpath := range []string{
+ dstPath + "/",
+ dstPath,
+ "/home/A Project/newnodename/",
+ "/home/A Project/newnodename",
+ "/home/A Project/",
+ "/home/A Project",
+ "/home/newnodename/",
+ "/home/newnodename",
+ "/home/",
+ "/home",
+ "/newnodename/",
+ "/newnodename",
+ "/",
+ } {
+ err = Splice(s.fs, badpath, snapFile)
+ c.Check(err, check.NotNil)
+ if strings.Contains(badpath, "newnodename") && strings.HasSuffix(badpath, "/") {
+ c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %q", badpath))
+ } else {
+ c.Check(err, ErrorIs, ErrInvalidOperation, check.Commentf("badpath %q", badpath))
+ }
+ if strings.TrimSuffix(badpath, "/") == dstPath {
+ c.Check(err, check.ErrorMatches, `cannot use Splice to attach a file at top level of \*arvados.collectionFileSystem: invalid operation`, check.Commentf("badpath: %q", badpath))
+ continue
+ }
+
+ err = Splice(s.fs, badpath, snap1)
+ if strings.Contains(badpath, "newnodename") && strings.HasSuffix(badpath, "/") {
+ c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %q", badpath))
+ } else {
+ c.Check(err, ErrorIs, ErrInvalidOperation, check.Commentf("badpath %q", badpath))
+ }
+ }
+
+ // Destination's parent must already exist
+ for _, badpath := range []string{
+ dstPath + "/newdirname/",
+ dstPath + "/newdirname/foobar",
+ "/foo/bar",
+ } {
+ err = Splice(s.fs, badpath, snap1)
+ c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %s", badpath))
+ err = Splice(s.fs, badpath, snapFile)
+ c.Check(err, ErrorIs, os.ErrNotExist, check.Commentf("badpath %s", badpath))
+ }
+
+ snap2, err := Snapshot(s.fs, dstPath+"/ctxlog-copy")
+ if c.Check(err, check.IsNil) {
+ err = Splice(s.fs, dstPath+"/ctxlog-copy-copy", snap2)
+ c.Check(err, check.IsNil)
+ }
+
+ // Snapshot entire collection, splice into same collection at
+ // a new path, remove file from original location, verify
+ // spliced content survives
+ snapDst, err := Snapshot(s.fs, dstPath+"")
+ c.Check(err, check.IsNil)
+ err = Splice(s.fs, dstPath+"", snapDst)
+ c.Check(err, check.IsNil)
+ err = Splice(s.fs, dstPath+"/copy1", snapDst)
+ c.Check(err, check.IsNil)
+ err = Splice(s.fs, dstPath+"/copy2", snapDst)
+ c.Check(err, check.IsNil)
+ err = s.fs.RemoveAll(dstPath + "/arvados/fs_site_test.go")
+ c.Check(err, check.IsNil)
+ err = s.fs.RemoveAll(dstPath + "/arvados")
+ c.Check(err, check.IsNil)
+ _, err = s.fs.Open(dstPath + "/arvados/fs_site_test.go")
+ c.Check(err, check.Equals, os.ErrNotExist)
+ f, err = s.fs.Open(dstPath + "/copy2/arvados/fs_site_test.go")
+ if c.Check(err, check.IsNil) {
+ defer f.Close()
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf), check.Equals, string(thisfile))
+ }
}
projects / arvados.git / blobdiff