This patch replaces fswatch with inotifywait from inotify-toools:
https://github.com/inotify-tools/inotify-tools
fswatch takes ~1min to set up recursively for the Samba source code
directory. inotifywait needs less than a second to do the same thing.
https://github.com/emcrisostomo/fswatch/issues/321
Also it fswatch seems to be unmaintained in the meantime.
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
Problem:
vim._watch.watchdirs has terrible performance.
Solution:
- On linux use fswatch as a watcher backend if available.
- Add File watcher section to health:vim.lsp. Warn if watchfunc is
libuv-poll.
Quick fix as follow up to https://github.com/neovim/neovim/pull/26108
kqueue only reports events on a watched folder itself, not for files
created or deleted within. So the approach the PR took doesn't work on FreeBSD.
We'll either need to bring back polling for it, combine watching with manual
file tracking, or disable LSP file watching on FreeBSD
Should help with https://github.com/neovim/neovim/issues/23291
On linux `new_fs_event` doesn't support recursive watching, but we can
still use it to watch folders.
The downside of this approach is that we may end up sending some false
`Deleted` events. For example, if you save a file named `foo` there will
be a intermediate `foo~` due to the save mechanism of neovim.
The events we get from vim.uv in that case are:
- rename: foo~
- rename: foo~
- rename: foo
- rename: foo
- change: foo
- change: foo
The mechanism in this PR uses a debounce to reduce this to:
- deleted: foo~
- changed: foo
`foo~` will be the false positive.
I suspect that for the LSP case this is good enough. If not, we may need
to follow up on this and keep a table in memory that tracks available
files.
Problem:
helpers.tmpname() may create a local file, depending on circumstances.
Solution:
Only use helpers.tmpname() for its parent directory (the "temp root").
Use fs_mkdtemp() to actually get a unique name.
