Allow setting metadata when copying

We store some metadata on images regarding which post a certain image belongs to. We have some cloud functions that listen to new files being added and depending on the metadata we do some actions.

We now want to be able to copy a file to a new location. But because our triggers fire of as soon as we use the copy command we would like to be able to specify what should happen with the metadata.

https://googleapis.dev/nodejs/storage/latest/File.html#copy https://googleapis.dev/nodejs/storage/latest/global.html#CopyOptions

Either we should be able to say, skip copying the metadata.

const file = bucket.file('my-image.png');
file.copy('my-image-copy.png', {
  metadata: null
}

Or we should be able to set the metadata from the copy method.

const file = bucket.file('my-image.png');
file.copy('my-image-copy.png', {
  metadata: {
    thisIsACopy: true
  }
}

What we have tried

• downloading the file and uploading again. (takes to long, and means extra costs)
• removing the metadata on the source before copying (not ideal because then we need to put the metadata back again)

Would this be possible?

[frankyn]

Good question for @tritone who is on duty right now

[leon]

Thanks for this! Now we can null out the metadata, which is a start 😃