No, sadly, the title is not a typo. See
https://www.githubstatus.com/incidents/zsg1lk7w13cf for the context.
I'll read with joy and popcorn through that root cause analysis.
It makes literally zero sense what happened here, but for some completly
bonkers reason GitHub completely messed up the merge queue with
https://github.com/zed-industries/zed/pull/54632.
I have no idea how it happened. It makes literally zero sense. A PR
going into the merge queue should have the same LoC when getting out of
it. GitHub obviously does not check this. GitHub causes extra work with
a feature that is supposed to save time.
Thanks, I guess.
Release Notes:
- N/A
---------
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
This PR brings back the button to filter remote branches when accessing
the title bar's branch picker with the mouse. It was unintentionally
removed when we introduced the new worktree picker.
Release Notes:
- N/A
## Summary
- Enable VSCode-like side-by-side file comparison in FileDiffView using
SplittableEditor
- Leverages existing SplittableEditor infrastructure that ProjectDiff
already uses
- Controlled by the user's `diff_view_style` setting (split/unified)
## Changes
- `crates/git_ui/src/file_diff_view.rs`: Refactored to use
SplittableEditor instead of plain Editor (+66/-30 lines)
## Test plan
- [ ] Open a file with git changes and verify the diff view renders
correctly
- [ ] Toggle between split and unified diff view styles via settings
- [ ] Verify side-by-side comparison shows old/new content correctly
Release Notes:
- Enabled side by side diffs in the file diff view
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>
TODO:
- [x] merge main
- [x] nonshrinking `set_excerpts_for_path`
- [x] Test-drive potential problem areas in the app
- [x] prepare cloud side
- [x] test collaboration
- [ ] docstrings
- [ ] ???
## Context
### Background
Currently, a multibuffer consists of an arbitrary list of
anchor-delimited excerpts from individual buffers. Excerpt ranges for a
fixed buffer are permitted to overlap, and can appear in any order in
the multibuffer, possibly separated by excerpts from other buffers.
However, in practice all code that constructs multibuffers does so using
the APIs defined in the `path_key` submodule of the `multi_buffer` crate
(`set_excerpts_for_path` etc.) If you only use these APIs, the resulting
multibuffer will maintain the following invariants:
- All excerpts for the same buffer appear contiguously in the
multibuffer
- Excerpts for the same buffer cannot overlap
- Excerpts for the same buffer appear in order
- The placement of the excerpts for a specific buffer in the multibuffer
are determined by the `PathKey` passed to `set_excerpts_for_path`. There
is exactly one `PathKey` per buffer in the multibuffer
### Purpose of this PR
This PR changes the multibuffer so that the invariants maintained by the
`path_key` APIs *always* hold. It's no longer possible to construct a
multibuffer with overlapping excerpts, etc. The APIs that permitted
this, like `insert_excerpts_with_ids_after`, have been removed in favor
of the `path_key` suite.
The main upshot of this is that given a `text::Anchor` and a
multibuffer, it's possible to efficiently figure out the unique excerpt
that includes that anchor, if any:
```
impl MultiBufferSnapshot {
fn buffer_anchor_to_anchor(&self, anchor: text::Anchor) -> Option<multi_buffer::Anchor>;
}
```
And in the other direction, given a `multi_buffer::Anchor`, we can look
at its `text::Anchor` to locate the excerpt that contains it. That means
we don't need an `ExcerptId` to create or resolve
`multi_buffer::Anchor`, and in fact we can delete `ExcerptId` entirely,
so that excerpts no longer have any identity outside their
`Range<text::Anchor>`.
There are a large number of changes to `editor` and other downstream
crates as a result of removing `ExcerptId` and multibuffer APIs that
assumed it.
### Other changes
There are some other improvements that are not immediate consequences of
that big change, but helped make it smoother. Notably:
- The `buffer_id` field of `text::Anchor` is no longer optional.
`text::Anchor::{MIN, MAX}` have been removed in favor of
`min_for_buffer`, etc.
- `multi_buffer::Anchor` is now a three-variant enum (inlined slightly):
```
enum Anchor {
Min,
Excerpt {
text_anchor: text::Anchor,
path_key_index: PathKeyIndex,
diff_base_anchor: Option<text::Anchor>,
},
Max,
}
```
That means it's no longer possible to unconditionally access the
`text_anchor` field, which is good because most of the places that were
doing that were buggy for min/max! Instead, we have a new API that
correctly resolves min/max to the start of the first excerpt or the end
of the last excerpt:
```
impl MultiBufferSnapshot {
fn anchor_to_buffer_anchor(&self, anchor: multi_buffer::Anchor) -> Option<text::Anchor>;
}
```
- `MultiBufferExcerpt` has been removed in favor of a new
`map_excerpt_ranges` API directly on `MultiBufferSnapshot`.
## Self-Review Checklist
<!-- Check before requesting review: -->
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Release Notes:
- N/A
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>
Co-authored-by: Conrad <conrad@zed.dev>
Self-Review Checklist:
- [ ] I've reviewed my own diff for quality, security, and reliability
- [ ] Unsafe blocks (if any) have justifying comments
- [ ] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [ ] Tests cover the new/changed behavior
- [ ] Performance impact has been considered and is acceptable
Closes #ISSUE
Release Notes:
- N/A
#### Context
Switches `TextDiffView` from using `Editor` directly to
`SplittableEditor`, enabling side-by-side diff view support for "Diff
Clipboard with Selection". The diff view now respects the user's
`diff_view_style` setting.
Split out from #51457. This PR contains only the `SplittableEditor`
wiring. The multibuffer coordinate fix for non-singleton editors will
follow in a separate PR.
Closes#50912 (partially)
#### How to Review
Small PR — all changes are in `crates/git_ui/src/text_diff_view.rs`.
Focus on:
- `new()`: `SplittableEditor::new` replaces `Editor::for_multibuffer`,
editor-specific setup goes through `rhs_editor()`
- Item trait delegation: `act_as_type`, `for_each_project_item`,
`set_nav_history` updated for `SplittableEditor`
- Tests: pinned `DiffViewStyle::Unified` and assertions go through
`rhs_editor()`
#### Self-Review Checklist
- [x] I've reviewed my own diff for quality, security, and reliability
- [ ] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
#### Video :
[Screencast from 2026-03-19
23-11-36.webm](https://github.com/user-attachments/assets/c5a2381d-238d-43ef-ac6f-9994996c0c69)
#### Release Notes:
- Improved "Diff Clipboard with Selection" to support side-by-side diff
view style.
## Context
Fixes the visual selection update in `TextDiffView::open` to properly
convert between buffer-local and multibuffer coordinates using
`buffer_point_to_anchor`. Previously, raw multibuffer Points were used
directly for line expansion, which produced incorrect regions when
expanded deleted diff hunks shifted multibuffer row numbers.
This provides a single unified code path for both singleton and
non-singleton multibuffers, as suggested in [#51457 review
feedback](https://github.com/zed-industries/zed/pull/51457#issuecomment-4091134303).
Follow-up to #51457.
## How to Review
Small PR - all changes are in `crates/git_ui/src/text_diff_view.rs`.
Focus on:
- `open()`: The visual selection update block now uses
`buffer_point_to_anchor` + `to_point` instead of raw multibuffer
coordinate math
- No more assumption that multibuffer Points == buffer-local Points
- Existing tests validate both singleton and non-singleton multibuffer
paths
## Self-Review Checklist
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] The content is consistent with the UI/UX checklist
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Release Notes:
- Fixed incorrect diff region when using "Diff Clipboard with Selection"
with expanded diff hunks in the editor.
BufferEvent::Edited had no way to distinguish local edits from remote
(collaboration) edits. This caused edit prediction behavior to fire on
the guest's editor when the host made document changes.
Release Notes:
- Fixed edit predictions triggering on collaboration guests when the
host edits the document.
---------
Co-authored-by: Ben Kunkle <ben@zed.dev>
Paving the way to remove `ExcerptId`. Done in this PR:
- Unshipped the stack trace view
- Get rid of `push_excerpts`
- Get rid of some callers of `remove_excerpts`
We still need to remove some calls to `remove_excerpts` and other APIs,
especially in `randomly_edit_excerpts` and collaboration.
Release Notes:
- The stack trace multibuffer view has been removed.
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Replaces a bunch of `impl FnMut` parameters with `&mut dyn FnMut` for
functions where this is the sole generic parameter.
Release Notes:
- N/A *or* Added/Fixed/Improved ...
This PR implements a UI for the side-by-side diff, using blocks to align
the two sides and adding a coherent `SplitEditorElement`.
Release Notes:
- N/A
---------
Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
Happy New Years! This PR is a second take at
https://github.com/zed-industries/zed/pull/38127 (cc @ConradIrwin)
This PR is significantly less complicated than the last attempt: while
we still keep our data on the `NavigationHistory` object, we no longer
tightly integrate it with the existing back/forward "browser history."
Instead, we keep our own stack of `(origin, target)` pairs (in a struct
to make it easy to extend with e.g., tag names in the future).
The PR is split into two separable commits. Most of the implementation
is in the second commit, which:
- Defines the stack data structure
- Implements `pane::GoToOlderTag` and `pane::GoToNewerTag` in terms of
the stack
- Hooks into `navigate_to_hover_links` to push tag stack entries
This last bit is the most fiddly. The core challenge is that we need to
keep track of the `origin` location and calculate the `target` location
across three codepaths that might involve creating a new editor and/or
splitting the pane. One thing in particular I found difficult was that
an editor's `nav_history` (an `ItemNavHistory`) seems to be populated
asynchronously. Instead of relying on it, I decided in this code to make
my own `ItemNavHistory`. I briefly tried to refactor the code in
question, but it seemed like it would significantly increase the scope
of the change.
I prefer this all-in-one tracking centered around
`navigate_to_hover_links ` to the `start/finish` approach taken in
https://github.com/zed-industries/zed/commit/b69a2ea200561de9de0edf4d0c4428ee887fb918
because I find it easier to convince myself that the right data is being
populated at the right times. Of course, let me know if you think
there's a better solution.
Closes#14206
Release Notes:
- ??? I don't know what to write here! Suggestions welcome
Breadcrumb visual reorchestration which makes a couple of key changes:
- Breadcrumbs are now displayed in file headers for multibuffer views.
Singleton buffers are unchanged.
- Multibuffer views now have collapse/expand all buttons available in
the toolbar
- Search in multibuffer views now takes up less space, by occupying the
primary toolbar location erstwhile taken up by breadcrumbs
<img width="1721" height="823" alt="Screenshot 2025-12-22 at 4 15 41 PM"
src="https://github.com/user-attachments/assets/38e924f7-fe9e-4c83-84fb-2eee98137f43"
/>
<img width="1722" height="762" alt="Screenshot 2025-12-22 at 4 15 51 PM"
src="https://github.com/user-attachments/assets/ccc98ca3-75ce-4aca-bceb-890817b0f04d"
/>
Release Notes:
- Moved breadcrumbs to file headers in multibuffer views
- Added collapse/expand all options for multibuffer views
- Improved use of space for multibuffer search by taking the place of
the former breadcrumb toolbar location
---------
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
Follow-up to #46001
That initial fix partly addressed the issue for diffs managed by the
`GitStore`, but not for other diffs (e.g. those managed by the
`ActionLog` or `CommitView`). The underlying issue is that we switched
to using a `Buffer` to represent the diff base text, and when updating
the diff we were calling `set_text` on this buffer and not waiting for
reparsing to finish. When the base text was represented by a series of
independent `BufferSnapshot`s, this wasn't an issue because we would
parse the base text in the background as part of computing the diff
update. This PR fixes the issue by waiting on reparsing to finish after
each call to `set_text`.
Release Notes:
- N/A
This PR reworks the (still feature-gated) side-by-side diff view to use
a different approach to representing the multibuffers on the left- and
right-hand sides.
Previously, these two multibuffers used identical sets of buffers and
excerpts, and were made to behave differently by adding a new knob to
the multibuffer controlling how diffs are displayed. Specifically, the
left-hand side multibuffer would filter out the added range of each hunk
from the excerpts using a new `FilteredInsertedHunk` diff transform, and
the right-hand side would simply not show the deleted sides of expanded
hunks. This approach has some problems:
- Line numbers, and actions that navigate by line number, behaved
incorrectly for the left-hand side.
- Syntax highlighting and other features that use the buffer syntax tree
also behaved incorrectly for the left-hand side.
In this PR, we've switched to using independent buffers to build the
left-hand side. These buffers are constructed using the base texts for
the corresponding diffs, and their lifecycle is managed by `BufferDiff`.
The red "deleted" regions on the left-hand side are represented by
`BufferContent` diff transforms, not `DeletedHunk` transforms. This
means each excerpt on the left represents a contiguous slice of a single
buffer, which fixes the above issues by construction.
The tradeoff with this new approach is that we now have to manually
synchronize excerpt ranges from the right side to the left, which we do
using `BufferDiffSnapshot::row_to_base_text_row`.
Release Notes:
- N/A
---------
Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: HactarCE <6060305+HactarCE@users.noreply.github.com>
Co-authored-by: Miguel Raz Guzmán Macedo <miguel@zed.dev>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Cameron <cameron@zed.dev>
Fixes a bug that led to us unnecessarily restarting a language server
when we were looking at a single file of a given language.
Release Notes:
- Fixed a bug that led to Zed sometimes starting an excessive amount of
language servers
Gist is we only need to block the foreground thread for reparsing if
immediate language changes are useful to the user. That is usually only
the case when they edit the buffer
Release Notes:
- Improved performance of large project searches and project diffs
Co-authored by: David Kleingeld <david@zed.dev>
Editor is a choke point in our compilation graph while also being a very
common crate that is being edited. So reducing things that depend on it
will generally improve compilation times for us.
Release Notes:
- N/A *or* Added/Fixed/Improved ...
This PR introduces a new `MultiBufferOffset` new type wrapping size. The
goal of this is to make it clear at the type level when we are
interacting with offsets of a multi buffer versus offsets of a language
/ text buffer. This improves readability of things quite a bit by making
it clear what kind of offsets one is working with while also reducing
accidental bugs by using the wrong kin of offset for the wrong API.
This PR also uncovered two minor bugs due to that.
Does not yet introduce the MultiBufferPoint equivalent, that is for a
follow up PR.
Release Notes:
- N/A *or* Added/Fixed/Improved ...
Re-applies https://github.com/zed-industries/zed/pull/30840
This PR re-applies the initial
[PR](https://github.com/zed-industries/zed/pull/30840). As it was closed
because it was hard to land, because of the many conflicts. This PR
re-applies the changes for it.
In several cases we were creating multiple display_map
snapshots within the same root-level function call.
Creating a display_map snapshot is quite slow, and in some
cases we were creating the snapshot multiple times.
Release Notes:
- N/A
Before this change the active theme and icon theme were retrofitted onto
the ThemeSettings.
Now they're in their own new global (GlobalTheme::theme(cx) and
GlobalTheme::icon_theme(cx))
This lets us remove cx from the settings traits, and tidy up a few other
things along the way.
Release Notes:
- N/A
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
https://github.com/user-attachments/assets/d472fbdd-7736-4bd7-8a90-8cca356b2815
This PR adds `editor: diff clipboard with selection` - good for spotting
the differences in eerily-similar code, which is when refactoring code,
as you need to see what needs to be passed in in order to maintain
previous behavior of both snippets.
1. Copy some text from anywhere
2. Highlight some text in Zed
3. Run `editor: diff clipboard with selection`
Like JetBrains' IDEs and VS Code with the `PartialDiff` package, if the
selection is empty, we take the entire buffer as the selection.
Caveats:
- We do not know the language of the text in the clipboard. I went ahead
and just assumed that in most cases, it will be the same language as the
selected text, which does mean we will highlight the old text
incorrectly if they are copying from a different language, but I think
in most cases, it will be the same, and the alternative of always having
no syntax highlighting is worse. PyCharm seems to do the same thing.
Release Notes:
- Added an `editor: diff clipboard with selection` action
---------
Co-authored-by: Junkui Zhang <364772080@qq.com>
Co-authored-by: Ben Kunkle <ben@zed.dev>
