feat: allow reading from and writing to php resource about openspout HOT 4 CLOSED

Hi, may I ask what's your use case?

from openspout.

Yes ofcourse,

My filesystem is abstracted using Flysystem and I'm making heavy usage of FilesystemReader::readStream and FilesystemWriter::writeStream methods.

If the reader supports streams, I can pass the result of FilesystemReader::readStream directly without additional writes to disk, and vice versa for the writer.

Also, not the least, with Flysystem I can only get the contents of the file and not the path to the file since files do not need to "live" on the current filesystem.

from openspout.

Regarding the Writer, although it should be possible to write to a user-provided stream, it wouldn't work as you expect with Flysystem: FilesystemWriter::writeStream expects an already filled stream, you cannot pass to it a stream that still needs to receive the data. So at least a php://memory intermediate stream would be needed anyway and in my experience that's more of a burden rather than an help.

Regarding the Reader, only the CSV one could achieve your goal as both ODS and XLSX rely on ZipStream::open which doesn't accept a stream.
And I don't like very much to add a feature so specific to a single component.

I have a decent experience with Flysystem, streams and filesystem operations on PHP, and although bypassing the disk entirely seems good in theory I strongly suggest you to rely on physical temporary files for intermediate steps, you'll save yourself a lot of pita.

from openspout.

And I don't like very much to add a feature so specific to a single component.

I fully agree. It should only be done if possible for all formats.

Thank you for your reply and your advice. I'll close this request for now.

from openspout.