This also replaces instances where we manually write "return ctx.Err()"
with "return context.Cause(ctx)" which is functionally identical, but
will also correctly propagate cause errors if present.
* core/config: refactor file watcher
* add comments
* updates
* only use the polling watcher
* fix test
* fix test
* try to fix test again
* remove batching
* dont rely on file modification timestamp
* remove benchmark
* try fix again
Prior to this commit, temporary directories in tests were created using
`filepath.Join` and `os.MkdirAll`.
This commit replaces `os.MkdirAll` with `t.TempDir` in tests. The
directory created by `t.TempDir` is automatically removed when the test
and all its subtests complete.
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
