Implement File API

[oleiade]

We have agreed on a design to tackle #2977.

This issue aims at tackling the implementation of the agreed specification. A reference proof of concept implementation can be used as a reference for the implementation.

Implementation Steps

Beta Give feedback

1. Implement the File API's open method, base File abstraction and File.stat operation. #3142
   enhancement +1
   
2. fs.read race condition when using Promise.all #3354
   bug help wanted +2
   
3. Implement the File API's openSync method as a temporary helper/workaround for await operations in the init context #3143
   enhancement +1
4. Implement the File API's File.read method #3145
   enhancement +1
   
5. Implement the File API's File.readAll method #3147
   enhancement +1
   
6. Implement the File API's File.seek method #3148
   enhancement +1
   

[oleiade]

Related issues which were not implemented as part of our initial implementation:

• Implementing the file.close operation is not considered necessary yet, based on the current implementation: [fs] Add the file.close method to the fs module (3/3) #3314
• Based on the added context we obtained when tackling ☝, we also have an opened PR to amend the FIle API design document: Amend File API design document to address file.Close constraints #3328