zls 0.14 build on save diagnostic not refreshing on macOS 15.3.1

[Sped0n]

Zig Version

0.14.0

ZLS Version

0.14.0

Client / Code Editor / Extensions

nvim 0.10.4 with nvim-lspconfig

Steps to Reproduce and Observed Behavior

1. clone https://github.com/Sped0n/zh (commit 13832c3)
2. open src/input.zig, go to line 143, change .pop() to .popOrNull()
3. save file, no build on save error appeared (it works in 0.13)
4. restart lsp, it give build on save error (zls: no field or member function named 'popOrNull' in 'array_list.ArrayListAligned(u8,null)')
5. change .popOrNull() back to .pop(), then save
6. after saved, build on save error persist (doesnt refresh)
7. restart lsp, build on save error no longer shows

Expected Behavior

build on save diagnostic could refresh normally after save

Relevant log output

----- zls log -----
info  ( main ): Starting ZLS      0.14.0 @ '/Users/spedon/.local/share/mise/installs/zls/0.14.0/zls'
info  ( main ): Log File:         /Users/spedon/Library/Caches/zls/zls.log (info)
info  (server): Client Info:      Neovim-0.10.4
info  (server): Autofix Mode:     source.fixall
info  (server): added Workspace Folder: file:///Users/spedon/eden/zig/zh
info  (server): Set config option 'builtin_path' to "/Users/spedon/Library/Caches/zls/builtin.zig"
info  (server): Set config option 'zig_lib_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/lib"
info  (server): Set config option 'zig_exe_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/bin/zig"
info  (server): Set config option 'build_runner_path' to "/Users/spedon/Library/Caches/zls/build_runner/66ed948cb34b142db738951608c6140d/build_runner.zig"
info  (server): Set config option 'global_cache_path' to "/Users/spedon/Library/Caches/zls"
info  (server): Loaded config:      /Users/spedon/Library/Application Support/zls.json
info  (server): Set config option 'enable_build_on_save' to true
info  (store ): Loaded build file 'file:///Users/spedon/eden/zig/zh/build.zig'
info  (server): trying to start Build-On-Save for 'file:///Users/spedon/eden/zig/zh'
info  ( main ): Starting ZLS      0.14.0 @ '/Users/spedon/.local/share/mise/installs/zls/0.14.0/zls'
info  ( main ): Log File:         /Users/spedon/Library/Caches/zls/zls.log (info)
info  (server): Client Info:      Neovim-0.10.4
info  (server): Autofix Mode:     source.fixall
info  (server): added Workspace Folder: file:///Users/spedon/eden/zig/zh
info  (server): Set config option 'builtin_path' to "/Users/spedon/Library/Caches/zls/builtin.zig"
info  (server): Set config option 'zig_lib_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/lib"
info  (server): Set config option 'zig_exe_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/bin/zig"
info  (server): Set config option 'build_runner_path' to "/Users/spedon/Library/Caches/zls/build_runner/66ed948cb34b142db738951608c6140d/build_runner.zig"
info  (server): Set config option 'global_cache_path' to "/Users/spedon/Library/Caches/zls"
info  (server): Loaded config:      /Users/spedon/Library/Application Support/zls.json
info  (server): Set config option 'enable_build_on_save' to true
info  (store ): Loaded build file 'file:///Users/spedon/eden/zig/zh/build.zig'
info  (server): trying to start Build-On-Save for 'file:///Users/spedon/eden/zig/zh'
info  ( main ): Starting ZLS      0.14.0 @ '/Users/spedon/.local/share/mise/installs/zls/0.14.0/zls'
info  ( main ): Log File:         /Users/spedon/Library/Caches/zls/zls.log (info)
info  (server): Client Info:      Neovim-0.10.4
info  (server): Autofix Mode:     source.fixall
info  (server): added Workspace Folder: file:///Users/spedon/eden/zig/zh
info  (server): Set config option 'builtin_path' to "/Users/spedon/Library/Caches/zls/builtin.zig"
info  (server): Set config option 'zig_lib_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/lib"
info  (server): Set config option 'zig_exe_path' to "/Users/spedon/.local/share/mise/installs/zig/0.14.0/bin/zig"
info  (server): Set config option 'build_runner_path' to "/Users/spedon/Library/Caches/zls/build_runner/66ed948cb34b142db738951608c6140d/build_runner.zig"
info  (server): Set config option 'global_cache_path' to "/Users/spedon/Library/Caches/zls"
info  (server): Loaded config:      /Users/spedon/Library/Application Support/zls.json
info  (server): Set config option 'enable_build_on_save' to true
info  (store ): Loaded build file 'file:///Users/spedon/eden/zig/zh/build.zig'
info  (server): trying to start Build-On-Save for 'file:///Users/spedon/eden/zig/zh'

lsplog.txt

[Sped0n]

Download vscode to test and get the same weird behaviour

[Sped0n]

Have done some investigations myself, it seems the behaviour is caused by the watch implementation

After force it use manual implementation instead of zig's builtin watch, refreshing works normally.

Also, zig build --watch failed to detect file changes made by neovim(havn't try other editor yet), kinda like what happens in ziglang/zig#21905 (my laptop is on macOS 15.3.1 though).

Maybe we can provide a config option to disable watch implementation? I'm willing to make a pr.