Flycheck commands are global and makes sense to fall back to looking up
project's rust-analyzer even if the commands are run on a non-rust
buffer. If multiple rust-analyzers are found in the project, avoid
ambiguous commands and bail (as before).
Closes #ISSUE
Release Notes:
- Made it possible to run rust-analyzer's flycheck actions from anywhere
in the project
This removes around 900 unnecessary clones, ranging from cloning a few
ints all the way to large data structures and images.
A lot of these were fixed using `cargo clippy --fix --workspace
--all-targets`, however it often breaks other lints and needs to be run
again. This was then followed up with some manual fixing.
I understand this is a large diff, but all the changes are pretty
trivial. Rust is doing some heavy lifting here for us. Once I get it up
to speed with main, I'd appreciate this getting merged rather sooner
than later.
Release Notes:
- N/A
Diagnostics updates were programmed in Zed based off the r-a LSP push
diagnostics, with all related updates happening per file.
https://github.com/zed-industries/zed/pull/19230 and especially
https://github.com/zed-industries/zed/pull/32269 brought in pull
diagnostics that could produce results for thousands files
simultaneously.
It was noted and addressed on the local side in
https://github.com/zed-industries/zed/pull/34022 but the remote side was
still not adjusted properly.
This PR
* removes redundant diagnostics pull updates on remote clients, as
buffer diagnostics are updated via buffer sync operations separately
* batches all diagnostics-related updates and proto messages, so
multiple diagnostic summaries (per file) could be sent at once,
specifically, 1 (potentially large) diagnostics summary update instead
of N*10^3 small ones.
Buffer updates are still sent per buffer and not updated, as happening
separately and not offending the collab traffic that much.
Release Notes:
- Improved diagnostics performance in the collaborative mode
* Straightens out the `*_ext.rs` workflow for clangd and rust-analyzer:
no need to asynchronously query for the language server, as we sync that
information already.
* Fixes inlay hints editor menu toggle not being shown in the remote
sessions
Release Notes:
- Fixed inlay hints editor menu toggle not being shown in the remote
sessions
Supersedes: #34242
Creates an `ActionArgumentsEditor` that implements the required logic to
have a JSON language server run when editing keybinds so that there is
auto-complete for action arguments.
This is the first time action argument schemas are required by
themselves rather than inlined in the keymap schema. Rather than add all
action schemas to the configuration options we send to the JSON LSP on
startup, this PR implements support for the
`vscode-json-language-server` extension to the LSP whereby the server
will request the client (Zed) to resolve URLs with URI schemes it does
not recognize, in our case `zed://`. This limits the impact on the size
of the configuration options to ~1KB as we send URLs for the language
server to resolve on demand rather than the schema itself. My
understanding is that this is how VSCode handles JSON schemas as well. I
plan to investigate converting the rest of our schema generation logic
to this method in a follow up PR.
Co-Authored-By: Cole <cole@zed.dev>
Release Notes:
- N/A *or* Added/Fixed/Improved ...
Closes https://github.com/zed-industries/zed/issues/33522
Turns out a bunch of Zed requests were not checking their capabilities
correctly, due to odd copy-paste and due to default that assumed that
the capabilities are met.
Adjust the code, which includes the document colors, add the test on the
colors case.
Release Notes:
- Fixed excessive document colors requests for unrelated files
Follow-up of https://github.com/zed-industries/zed/pull/19230
* starts to send `result_id` in pull requests to allow servers to reply
with non-full results
* fixes a bug where disk-based diagnostics were offset after pulling the
diagnostics
* fixes a bug due to which pull diagnostics could not be disabled
* uses better names and comments for the workspace pull diagnostics part
Release Notes:
- N/A
Closes [#13107](https://github.com/zed-industries/zed/issues/13107)
Enabled pull diagnostics by default, for the language servers that
declare support in the corresponding capabilities.
```
"diagnostics": {
"lsp_pull_diagnostics_debounce_ms": null
}
```
settings can be used to disable the pulling.
Release Notes:
- Added support for the LSP `textDocument/diagnostic` command.
# Brief
This is draft PR that implements the LSP `textDocument/diagnostic`
command. The goal is to receive your feedback and establish further
steps towards fully implementing this command. I tried to re-use
existing method and structures to ensure:
1. The existing functionality works as before
2. There is no interference between the diagnostics sent by a server and
the diagnostics requested by a client.
The current implementation is done via a new LSP command
`GetDocumentDiagnostics` that is sent when a buffer is saved and when a
buffer is edited. There is a new method called `pull_diagnostic` that is
called for such events. It has debounce to ensure we don't spam a server
with commands every time the buffer is edited. Probably, we don't need
the debounce when the buffer is saved.
All in all, the goal is basically to get your feedback and ensure I am
on the right track. Thanks!
## References
1.
https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_pullDiagnostics
## In action
You can clone any Ruby repo since the `ruby-lsp` supports the pull
diagnostics only.
Steps to reproduce:
1. Clone this repo https://github.com/vitallium/stimulus-lsp-error-zed
2. Install Ruby (via `asdf` or `mise).
4. Install Ruby gems via `bundle install`
5. Install Ruby LSP with `gem install ruby-lsp`
6. Check out this PR and build Zed
7. Open any file and start editing to see diagnostics in realtime.
https://github.com/user-attachments/assets/0ef6ec41-e4fa-4539-8f2c-6be0d8be4129
---------
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
Co-authored-by: Kirill Bulatov <kirill@zed.dev>
Follow-up of https://github.com/zed-industries/zed/pull/29706
Instead of doing `cargo check` manually, use rust-analyzer's flycheck:
at the cost of more sophisticated check command configuration, we keep
much less code in Zed, and get a proper progress report.
User-facing UI does not change except `diagnostics_fetch_command` and
`env` settings removed from the diagnostics settings.
Release Notes:
- N/A
Adjusts the way `cargo` and `rust-analyzer` diagnostics are fetched into
Zed.
Nothing is changed for defaults: in this mode, Zed does nothing but
reports file updates, which trigger rust-analyzers'
mechanisms:
* generating internal diagnostics, which it is able to produce on the
fly, without blocking cargo lock.
Unfortunately, there are not that many diagnostics in r-a, and some of
them have false-positives compared to rustc ones
* running `cargo check --workspace --all-targets` on each file save,
taking the cargo lock
For large projects like Zed, this might take a while, reducing the
ability to choose how to work with the project: e.g. it's impossible to
save multiple times without long diagnostics refreshes (may happen
automatically on e.g. focus loss), save the project and run it instantly
without waiting for cargo check to finish, etc.
In addition, it's relatively tricky to reconfigure r-a to run a
different command, with different arguments and maybe different env
vars: that would require a language server restart (and a large project
reindex) and fiddling with multiple JSON fields.
The new mode aims to separate out cargo diagnostics into its own loop so
that all Zed diagnostics features are supported still.
For that, an extra mode was introduced:
```jsonc
"rust": {
// When enabled, Zed runs `cargo check --message-format=json`-based commands and
// collect cargo diagnostics instead of rust-analyzer.
"fetch_cargo_diagnostics": false,
// A command override for fetching the cargo diagnostics.
// First argument is the command, followed by the arguments.
"diagnostics_fetch_command": [
"cargo",
"check",
"--quiet",
"--workspace",
"--message-format=json",
"--all-targets",
"--keep-going"
],
// Extra environment variables to pass to the diagnostics fetch command.
"env": {}
}
```
which calls to cargo, parses its output and mixes in with the existing
diagnostics:
https://github.com/user-attachments/assets/e986f955-b452-4995-8aac-3049683dd22c
Release Notes:
- Added a way to get diagnostics from cargo and rust-analyzer without
mutually locking each other
- Added `ctrl-r` binding to refresh diagnostics in the project
diagnostics editor context
Fix for error:
```log
2025-04-23T13:02:14-04:00 INFO [lsp] starting language server process. binary path: "/Users/peter/Library/Application Support/Zed/languages/rust-analyzer/rust-analyzer-2025-04-21", working directory: "/Users/peter/zcode/zed", args: []
2025-04-23T13:02:16-04:00 ERROR [lsp] failed to deserialize response from language server: data did not match any variant of untagged enum RunnableArgs at line 1 column 199. response from language server: "[{\"label\":\"cargo check --workspace\",\"kind\":\"cargo\",\"args\":{\"cwd\":\"/Users/peter/zcode/zed/crates/gpui/src/platform/linux\",\"overrideCargo\":null,\"cargoArgs\":[\"check\",\"--workspace\"],\"executableArgs\":[]}}]"
2025-04-23T13:02:16-04:00 WARN [project::lsp_store] LSP Runnables via rust-analyzer failed: failed to deserialize response
2025-04-23T13:02:16-04:00 ERROR [*unknown*] LSP Runnables via rust-analyzer failed: failed to deserialize response
```
Object is missing `environment`:
```json
[
{
"label": "cargo check --workspace",
"kind": "cargo",
"args": {
"cwd": "/Users/peter/zcode/zed/crates/gpui/src/platform/linux",
"overrideCargo": null,
"cargoArgs": ["check", "--workspace"],
"executableArgs": []
}
}
]
```
Follow-up to: https://github.com/zed-industries/zed/pull/28359
Release Notes:
- N/A
---------
Co-authored-by: Kirill Bulatov <kirill@zed.dev>
(and any other LSP server in theory, if it exposes any LSP-ext endpoint
for the same)
Closes https://github.com/zed-industries/zed/issues/16160
* adds a way to disable tree-sitter tasks (the ones from the plugins,
enabled by default) with
```json5
"languages": {
"Rust": "tasks": {
"enabled": false
}
}
}
```
language settings
* adds a way to disable LSP tasks (the ones from the rust-analyzer
language server, enabled by default) with
```json5
"lsp": {
"rust-analyzer": {
"enable_lsp_tasks": false,
}
}
```
* adds rust-analyzer tasks into tasks modal and gutter:
<img width="1728" alt="modal"
src="https://github.com/user-attachments/assets/22b9cee1-4ffb-4c9e-b1f1-d01e80e72508"
/>
<img width="396" alt="gutter"
src="https://github.com/user-attachments/assets/bd818079-e247-4332-bdb5-1b7cb1cce768"
/>
Release Notes:
- Added tasks from rust-analyzer
This is the core change:
https://github.com/zed-industries/zed/pull/26758/files#diff-044302c0d57147af17e68a0009fee3e8dcdfb4f32c27a915e70cfa80e987f765R1052
TODO:
- [x] Use AsyncFn instead of Fn() -> Future in GPUI spawn methods
- [x] Implement it in the whole app
- [x] Implement it in the debugger
- [x] Glance at the RPC crate, and see if those box future methods can
be switched over. Answer: It can't directly, as you can't make an
AsyncFn* into a trait object. There's ways around that, but they're all
more complex than just keeping the code as is.
- [ ] Fix platform specific code
Release Notes:
- N/A
Similar to how tasks are fetched via LSP, also queries for document's
code lens and filters the ones with the commands, supported in server
capabilities.
Whatever's left and applicable to the range given, is added to the
actions menu:

This way, Zed can get more actions to run, albeit neither r-a nor vtsls
seem to provide anything by default.
Currently, there are no plans to render code lens the way as in VSCode,
it's just the extra actions that are show in the menu.
------------------
As part of the attempts to use rust-analyzer LSP data about the
runnables, I've explored a way to get this data via standard LSP.
When particular experimental client capabilities are enabled (similar to
how clangd does this now), r-a starts to send back code lens with the
data needed to run a cargo command:
```
{"jsonrpc":"2.0","id":48,"result":{"range":{"start":{"line":0,"character":0},"end":{"line":98,"character":0}},"command":{"title":"▶︎ Run Tests","command":"rust-analyzer.runSingle","arguments":[{"label":"test-mod tests::ecparser","location":{"targetUri":"file:///Users/someonetoignore/work/ec4rs/src/tests/ecparser.rs","targetRange":{"start":{"line":0,"character":0},"end":{"line":98,"character":0}},"targetSelectionRange":{"start":{"line":0,"character":0},"end":{"line":98,"character":0}}},"kind":"cargo","args":{"environment":{"RUSTC_TOOLCHAIN":"/Users/someonetoignore/.rustup/toolchains/1.85-aarch64-apple-darwin"},"cwd":"/Users/someonetoignore/work/ec4rs","overrideCargo":null,"workspaceRoot":"/Users/someonetoignore/work/ec4rs","cargoArgs":["test","--package","ec4rs","--lib"],"executableArgs":["tests::ecparser","--show-output"]}}]}}}
```
This data is passed as is to VSCode task processor, registered in
60cd01864a/editors/code/src/main.ts (L195)
where it gets eventually executed as a VSCode's task, all handled by the
r-a's extension code.
rust-analyzer does not declare server capabilities for such tasks, and
has no `workspace/executeCommand` handle, and Zed needs an interactive
terminal output during the test runs, so we cannot ask rust-analyzer
more than these descriptions.
Given that Zed needs experimental capabilities set to get these lens:
60cd01864a/editors/code/src/client.ts (L318-L327)
and that the lens may contain other odd tasks (e.g. docs opening or
references lookup), a protocol extension to get runnables looks more
preferred than lens:
https://rust-analyzer.github.io/book/contributing/lsp-extensions.html#runnables
This PR does not include any work on this direction, limiting to the
general code lens support.
As a proof of concept, it's possible to get the lens and even attempt to
run it, to no avail:

Release Notes:
- Used `textDocument/codeLens` data in the actions menu when applicable
Disables https://github.com/zed-industries/zed/pull/26146 until a better
way to add diagnostics is found.
Overall, the PR had made changes that are worth keeping instead of
reverting, such as finally extracting out r-a's language server logic
into an `_ext.rs` file.
Release Notes:
- N/A