filestore: Add information about saved upload

cmd/tusd/cli/composer.go

@@ -2,6 +2,7 @@ package cli
 
 import (
 	"os"
+	"path/filepath"
 
 	"github.com/tus/tusd/pkg/filestore"
 	"github.com/tus/tusd/pkg/gcsstore"
@@ -61,7 +62,10 @@ func CreateComposer() {
 		locker := memorylocker.New()
 		locker.UseIn(Composer)
 	} else {
-		dir := Flags.UploadDir
+		dir, err := filepath.Abs(Flags.UploadDir)
+		if err != nil {
+			stderr.Fatalf("Unable to make absolute path: %s", err)
+		}
 
 		stdout.Printf("Using '%s' as directory storage.\n", dir)
 		if err := os.MkdirAll(dir, os.FileMode(0774)); err != nil {

pkg/filestore/filestore.go

@@ -60,10 +60,15 @@ func (store FileStore) UseIn(composer *handler.StoreComposer) {
 
 func (store FileStore) NewUpload(info handler.FileInfo) (id string, err error) {
 	id = uid.Uid()
+	binPath := store.binPath(id)
 	info.ID = id
+	info.Storage = map[string]string{
+		"Type": "filestore",
+		"Path": binPath,
+	}
 
 	// Create .bin file with no content
-	file, err := os.OpenFile(store.binPath(id), os.O_CREATE|os.O_WRONLY, defaultFilePerm)
+	file, err := os.OpenFile(binPath, os.O_CREATE|os.O_WRONLY, defaultFilePerm)
 	if err != nil {
 		if os.IsNotExist(err) {
 			err = fmt.Errorf("upload directory does not exist: %s", store.Path)
@@ -107,12 +112,17 @@ func (store FileStore) GetInfo(id string) (handler.FileInfo, error) {
 		return info, err
 	}
 
-	stat, err := os.Stat(store.binPath(id))
+	binPath := store.binPath(id)
+	stat, err := os.Stat(binPath)
 	if err != nil {
 		return info, err
 	}
 
 	info.Offset = stat.Size()
+	info.Storage = map[string]string{
+		"Type": "filestore",
+		"Path": binPath,
+	}
 
 	return info, nil
 }

pkg/filestore/filestore_test.go

@@ -4,6 +4,7 @@ import (
 	"io"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 
@@ -44,6 +45,9 @@ func TestFilestore(t *testing.T) {
 	a.EqualValues(42, info.Size)
 	a.EqualValues(0, info.Offset)
 	a.Equal(handler.MetaData{"hello": "world"}, info.MetaData)
+	a.Equal(2, len(info.Storage))
+	a.Equal("filestore", info.Storage["Type"])
+	a.Equal(filepath.Join(tmp, id+".bin"), info.Storage["Path"])
 
 	// Write data to upload
 	bytesWritten, err := store.WriteChunk(id, 0, strings.NewReader("hello world"))

pkg/handler/datastore.go

@@ -26,6 +26,10 @@ type FileInfo struct {
 	// ordered slice containing the ids of the uploads of which the final upload
 	// will consist after concatenation.
 	PartialUploads []string
+	// Storage contains information about where the data storage saves the upload,
+	// for example a file path. The available values vary depending on what data
+	// store is used. This map may also be nil.
+	Storage map[string]string
 
 	// stopUpload is the cancel function for the upload's context.Context. When
 	// invoked it will interrupt the writes to DataStore#WriteChunk.

pkg/handler/unrouted_handler.go

@@ -303,6 +303,7 @@ func (handler *UnroutedHandler) PostFile(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
+	// TODO: Should we use GetInfo here?
 	info.ID = id
 
 	// Add the Location header directly after creating the new resource to even