overleaf/services/filestore/app
Jakob Ackermann 0db4a17a14 [HealthCheckController] use fs.copyFile instead of fs-extra.copy
the fs-extra method has a HUGE overhead of JS code and also syscalls for
 no particular benefit in this case: just copy the tiny.pdf file.

Here is an overview of the major operations: paths are relative to
  https://github.com/jprichardson/node-fs-extra/blob/1.0.0

We start in /lib/copy/copy.js
- sys: check that the source file exists
- sys: check that the source file has an existing parent directory?!
Continue in /lib/copy/ncp.js
- sys: more stat calls on both source and dest to determine permissions
- read/write streams to pipe the file content through the process
- sys: chmod on the destination to match the source permissions

What we actually need is a call to the binding and let node/the os
 figure out the best way to copy the contents.

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>
2020-03-02 17:02:35 +01:00
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js [HealthCheckController] use fs.copyFile instead of fs-extra.copy 2020-03-02 17:02:35 +01:00