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a850731b0e
Context: https://x.com/fasterthanlime/status/1819120238228570598 Up to this PR: - We were not watching paths outside of a worktree when language server requested it. - We expected GlobPattern used for file watching to be always rooted at the worktree root. '1 mattered for observing global files (e.g. global RA config) and both points had impact on "monorepos". Let's picture the following scenario: You're working on a Rust project that has two crates: bin and lib crate: ``` my-rust-project/ bin-crate/ lib-crate/ ``` Up to this PR, making changes like changing field visibility in lib-crate **was not reflected** in bin-crate until RA was restarted. RA for bin-crate asked us to watch lib-crate. Now, depending on if you had this project open as: - a project with one worktree rooted at my-rust-project: - due to '2, we never noticed that we have to notify RA instance for bin-crate about changes in lib-crate. - a project with two worktrees (bin-crate and lib-crate): - due to '1 (as lib-crate is not within bin-crate's worktree), we once again missed the fact that we have to watch for changes in lib-crate. This PR solves this by introducing a side-channel - we just store fs watchers for abs paths at the Project level. Worktree changes handling is left relatively untouched - as it's used for other changes besides LSP change notifying, I've figured to better leave it as is, as right now we have 1 worktree change watcher; if we were to change it, we'd have `(language server) + 1` watchers per worktree, which seems.. pretty horrid. What's the end effect? At the very least fasterthanlime should be a tad happier; in reality though, I expect it to have some impact on LS reliability in monorepo setups. TODO - [x] Wire through FileChangeType into `fs::watch` interface. Release Notes: - Improved language server reliability in multi-worktree projects and monorepo. We now notify the language server more reliably about which files have changed. |
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