1 files changed, 71 insertions, 0 deletions
diff --git a/drive/update.go b/drive/update.go
new file mode 100644
index 0000000..4fa33ed
--- /dev/null
+++ b/drive/update.go
@@ -0,0 +1,71 @@
+package drive
+
+import (
+    "fmt"
+    "mime"
+    "os"
+    "io"
+    "path/filepath"
+    "google.golang.org/api/drive/v3"
+    "golang.org/x/net/context"
+)
+
+type UpdateArgs struct {
+    Out io.Writer
+    Id string
+    Path string
+    Name string
+    Parents []string
+    Mime string
+    Recursive bool
+    Stdin bool
+    Share bool
+    NoProgress bool
+}
+
+func (self *Drive) Update(args UpdateArgs) (err error) {
+    //if args.Stdin {
+    //    self.uploadStdin()
+    //}
+
+    srcFile, err := os.Open(args.Path)
+    if err != nil {
+        return fmt.Errorf("Failed to open file: %s", err)
+    }
+
+    srcFileInfo, err := srcFile.Stat()
+    if err != nil {
+        return fmt.Errorf("Failed to read file metadata: %s", err)
+    }
+
+    // Instantiate empty drive file
+    dstFile := &drive.File{}
+
+    // Use provided file name or use filename
+    if args.Name == "" {
+        dstFile.Name = filepath.Base(srcFileInfo.Name())
+    } else {
+        dstFile.Name = args.Name
+    }
+
+    // Set provided mime type or get type based on file extension
+    if args.Mime == "" {
+        dstFile.MimeType = mime.TypeByExtension(filepath.Ext(dstFile.Name))
+    } else {
+        dstFile.MimeType = args.Mime
+    }
+
+    // Set parent folders
+    dstFile.Parents = args.Parents
+
+    f, err := self.service.Files.Update(args.Id, dstFile).ResumableMedia(context.Background(), srcFile, srcFileInfo.Size(), dstFile.MimeType).Do()
+    if err != nil {
+        return fmt.Errorf("Failed to upload file: %s", err)
+    }
+
+    fmt.Fprintf(args.Out, "Uploaded '%s' at %s, total %d\n", f.Name, "x/s", f.Size)
+    //if args.Share {
+    //    self.Share(TODO)
+    //}
+    return
+}