Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
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Max Brunsfeld 40fe5275cf
Rework project diagnostics to prevent showing inconsistent state (#10922)
For a long time, we've had problems where diagnostics can end up showing
up inconsistently in different views. This PR is my attempt to prevent
that, and to simplify the system in the process. There are some UX
changes.

Diagnostic behaviors that have *not* changed:

* In-buffer diagnostics update immediately when LSPs send diagnostics
updates.
* The diagnostic counts in the status bar indicator also update
immediately.

Diagnostic behaviors that this PR changes:

* [x] The tab title for the project diagnostics view now simply shows
the same counts as the status bar indicator - the project's current
totals. Previously, this tab title showed something slightly different -
the numbers of diagnostics *currently shown* in the diagnostics view's
excerpts. But it was pretty confusing that you could sometimes see two
different diagnostic counts.
* [x] The project diagnostics view **never** updates its excerpts while
the user might be in the middle of typing it that view, unless the user
expressed an intent for the excerpts to update (by e.g. saving the
buffer). This was the behavior we originally implemented, but has
changed a few times since then, in attempts to fix other issues. I've
restored that invariant.

    Times when the excerpts will update:
     * diagnostics are updated while the diagnostics view is not focused
     * the user changes focus away from the diagnostics view
* the language server sends a `work done progress end` message for its
disk-based diagnostics token (i.e. cargo check finishes)
* the user saves a buffer associated with a language server, and then a
debounce timer expires

* [x] The project diagnostics view indicates when its diagnostics are
stale. States:
* when diagnostics have been updated while the diagnostics view was
focused:
        * the indicator shows a 'refresh' icon
        * clicking the indicator updates the excerpts
* when diagnostics have been updated, but a file has been saved, so that
the diagnostics will soon update, the indicator is disabled

With these UX changes, the only 'complex' part of the our diagnostics
presentation is the Project Diagnostics view's excerpt management,
because it needs to implement the deferred updates in order to avoid
disrupting the user while they may be typing. I want to take some steps
to reduce the potential for bugs in this view.

* [x] Reduce the amount of state that the view uses, and simplify its
implementation
* [x] Add a randomized test that checks the invariant that a mutated
diagnostics view matches a freshly computed diagnostics view


##  Release Notes

- Reworked the project diagnostics view:
- Fixed an issue where the project diagnostics view could update its
excerpts while you were typing in it.
- Fixed bugs where the project diagnostics view could show the wrong
excerpts.
- Changed the diagnostics view to always update its excerpts eagerly
when not focused.
- Added an indicator to the project diagnostics view's toolbar, showing
when diagnostics have been changed.

---------

Co-authored-by: Richard Feldman <oss@rtfeldman.com>
2024-04-25 18:12:15 -07:00
.cargo Enable tokio-console (#8897) 2024-03-05 10:56:14 -07:00
.config tests: Test 'db' package sequentially (#2654) 2023-06-28 15:00:43 +02:00
.github Fix issues with drafting release notes in CI (#10955) 2024-04-24 18:56:36 -04:00
.zed New revision of the Assistant Panel (#10870) 2024-04-23 16:23:26 -07:00
assets storybook: Fix Backspace in Auto Height Editor and Picker stories (#11011) 2024-04-25 17:37:47 -04:00
crates Rework project diagnostics to prevent showing inconsistent state (#10922) 2024-04-25 18:12:15 -07:00
docs docs: Add note about manually using the bump_patch_version action (#10862) 2024-04-22 15:58:25 -04:00
extensions Extract Elixir extension (#10948) 2024-04-25 13:59:14 -04:00
script New revision of the Assistant Panel (#10870) 2024-04-23 16:23:26 -07:00
tooling/xtask Windows: Enable clippy deny warnings (#9920) 2024-03-28 11:55:35 -04:00
.dockerignore Add serialized versions of themes (#6885) 2024-01-27 13:35:43 -05:00
.gitattributes Prevent GitHub from displaying comments within JSON files as errors (#7043) 2024-01-29 23:11:25 -05:00
.gitignore Update documentation and handling to use a crates/collab/seed.json (#10874) 2024-04-23 05:41:31 -07:00
.gitmodules WIP: start on live_kit_server 2022-10-17 09:59:16 +02:00
.mailmap Update .mailmap (#7871) 2024-02-15 18:35:43 -05:00
Cargo.lock Rework project diagnostics to prevent showing inconsistent state (#10922) 2024-04-25 18:12:15 -07:00
Cargo.toml Extract Elixir extension (#10948) 2024-04-25 13:59:14 -04:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md (#4239) 2024-01-23 22:31:39 -05:00
CONTRIBUTING.md Remove stray word in CONTRIBUTING.md 2024-04-15 16:30:18 -04:00
debug.plist WIP 2023-12-14 09:25:14 -07:00
docker-compose.sql Add config files for running Postgres inside Docker Compose (#3637) 2023-12-13 17:25:07 -05:00
docker-compose.yml Add LiveKit server to Docker Compose (#7907) 2024-02-16 10:49:48 -05:00
Dockerfile Revert "Revert "chore: Bump Rust version to 1.77 (#9631)"" (#9672) 2024-03-22 11:17:16 +01:00
LICENSE-AGPL chore: Add crate licenses. (#4158) 2024-01-23 16:56:22 +01:00
LICENSE-APACHE chore: Add crate licenses. (#4158) 2024-01-23 16:56:22 +01:00
LICENSE-GPL Licenses: change license fields in Cargo.toml to AGPL-3.0-or-later. (#5535) 2024-01-27 13:51:16 +01:00
livekit.yaml Add LiveKit server to Docker Compose (#7907) 2024-02-16 10:49:48 -05:00
Procfile Revert change to tracing (#10578) 2024-04-15 14:00:56 -06:00
README.md Add links to jobs page in README and in app, under help menu (#10658) 2024-04-16 15:47:23 -07:00
rust-toolchain.toml Revert "Revert "chore: Bump Rust version to 1.77 (#9631)"" (#9672) 2024-03-22 11:17:16 +01:00
typos.toml Extract GLSL language support into an extension (#10433) 2024-04-11 13:52:10 -04:00

Zed

CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Installation

You can download Zed today for macOS (v10.15+).

Support for additional platforms is on our roadmap:

For macOS users, you can also install Zed using Homebrew:

brew install --cask zed

Alternatively, to install the Preview release:

brew tap homebrew/cask-versions
brew install zed-preview

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.