Closes #21534

While investigating the panic, I noticed that the code was pretty
complicated and decided to refactor parts of it to reduce redundancy.

Release Notes:

- Fixed an issue where the app could crash when opening the markdown
preview with a malformed image tag

This fixes an error on nightly, introduced in
https://github.com/zed-industries/zed/pull/21258, where diffs were not
shown for buffers that were added to multi-buffers after construction.

Release Notes:

- N/A

Release Notes:

- Make the include warnings toggle in the diagnostic tab global for a
zed session.

Closes #21507

Release Notes:

- Fixed detection of git remotes when using SSH and username is not
"git".

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [blake3](https://redirect.github.com/BLAKE3-team/BLAKE3) |
workspace.dependencies | patch | `1.5.4` -> `1.5.5` |

---

### Release Notes

<details>
<summary>BLAKE3-team/BLAKE3 (blake3)</summary>

###
[`v1.5.5`](https://redirect.github.com/BLAKE3-team/BLAKE3/releases/tag/1.5.5)

[Compare
Source](https://redirect.github.com/BLAKE3-team/BLAKE3/compare/1.5.4...1.5.5)

version 1.5.5

Changes since 1.5.4:

-   `b3sum --check` now supports checkfiles with Windows-style newlines.
    `b3sum` still emits Unix-style newlines, even on Windows, but
    sometimes text editors or version control tools will swap them.
-   The "digest" feature (deleted in v1.5.2) has been added back to the
    `blake3` crate. This is for backwards compatibility only, and it's
    insta-deprecated. All callers should prefer the "traits-preview"
    feature.

</details>

---

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📅 **Schedule**: Branch creation - "after 3pm on Wednesday" in timezone
America/New_York, Automerge - At any time (no schedule defined).

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Similar to #20826 but keeps the Swift implementation. There were quite a
few changes in the `call` crate, and so that code now has two variants.

Closes #13714

Release Notes:

- Added preliminary Linux support for voice chat and viewing
screenshares.

---------

Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
Co-authored-by: Kirill Bulatov <kirill@zed.dev>
Co-authored-by: Mikayla <mikayla@zed.dev>

Closes https://github.com/zed-industries/zed/issues/12723

This PR makes the border color of a focused project panel item use the
`panel_focused_border` theme token. This allow theme makers to customize
that independently of the `text_accent` color, which was the one being
previously used.

### One Dark

| Before | After |
|--------|--------|
| <img width="800" alt="Screenshot 2024-12-05 at 18 37 00"
src="https://github.com/user-attachments/assets/8b21f1e3-1738-42ab-af30-ad7d589007c1">
| <img width="800" alt="Screenshot 2024-12-05 at 18 39 42"
src="https://github.com/user-attachments/assets/1a424765-a1b6-48eb-ae75-1ffba2b59da3">
|
| <img width="800" alt="Screenshot 2024-12-05 at 18 37 08"
src="https://github.com/user-attachments/assets/d1955cf2-e194-46a5-9518-dc3af7f70cfe">
| <img width="800" alt="Screenshot 2024-12-05 at 18 39 51"
src="https://github.com/user-attachments/assets/99413075-f021-4961-8f03-ad1b40503ea6">
|

### Gruvbox Hard

| Before | After |
|--------|--------|
| <img width="800" alt="Screenshot 2024-12-05 at 18 38 05"
src="https://github.com/user-attachments/assets/cf84ce75-ac8a-4cb6-aaab-81e02bfb4835">
| <img width="800" alt="Screenshot 2024-12-05 at 18 40 15"
src="https://github.com/user-attachments/assets/f62b815b-8bed-41d8-85a1-7091d04bfbd2">
|
| <img width="800" alt="Screenshot 2024-12-05 at 18 38 16"
src="https://github.com/user-attachments/assets/fb458fa2-6ce1-4af0-a7a6-83584f3e5ed0">
| <img width="800" alt="Screenshot 2024-12-05 at 18 39 57"
src="https://github.com/user-attachments/assets/8bf44fe6-7090-4ef0-8b56-b8aa2e1f314d">
|

Release Notes:

- N/A

This PR adds the ability to delete past threads in Assistant2.

Release Notes:

- N/A

Restores a basic project diff test

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <cole@zed.dev>

This PR adds support for thread history to the Assistant 2 panel.

We also now generate summaries for the threads.

<img width="986" alt="Screenshot 2024-12-05 at 12 56 53 PM"
src="https://github.com/user-attachments/assets/46cb1309-38a2-4ab9-9fcc-c1275d4b5f2c">

<img width="986" alt="Screenshot 2024-12-05 at 12 56 58 PM"
src="https://github.com/user-attachments/assets/8c91ba57-a6c5-4b88-be05-b22fb615ece5">

Release Notes:

- N/A

---------

Co-authored-by: Piotr <piotr@zed.dev>

Fixes #21210 by ensuring that Zed can open worktrees of bare git repositories.

Co-authored-by: Peter Tripp <peter@zed.dev>

Closes #21179

Release Notes:

- Add setting to display error and warning indicators in tabs.

<img width="454" alt="demo_with_icons"
src="https://github.com/user-attachments/assets/6002b4d4-dca8-4e2a-842d-1df3e281fcd2">
<img width="454" alt="demo_without_icons"
src="https://github.com/user-attachments/assets/df4b67bd-1a6c-4354-847e-d7fea95c1b7e">

Both rust_begin_unwind and _rust_begin_unwind appear in practice, not sure why.

Release Notes:

- N/A

Release Notes:

- Added "[ c" & "] c" To select prev/next git modified file within the
project panel
- Added "[ d" & "] d" To select prev/next file with diagnostics from an
LSP within the project panel
- Added "{" & "}" To select prev/next directory within the project panel

Note:

I wanted to extend project panel's functionality when netrw is active so
I added some shortcuts that I believe will be helpful for most users. I
tried to keep the default key mappings for the shortcuts inline with
Zed's vim mode.

## Selecting prev/next modified git file

https://github.com/user-attachments/assets/a9c057c7-1015-444f-b273-6d52ac54aa9c


## Selecting prev/next diagnostics 

https://github.com/user-attachments/assets/d1fb04ac-02c6-477c-b751-90a11bb42a78

## Selecting prev/next directories (Only works with visible directoires)

https://github.com/user-attachments/assets/9e96371e-105f-4fe9-bbf7-58f4a529f0dd

During workspace registration, it's too early to check for the
`is_staff` flag due to no connection being established yet.
As a compromise, allow the action to appear and be registered, but do
nothing for non-staff users.

Release Notes:

- N/A

Closes #21576

This issue is caused by the fuzzy matching for snippets I added
[here](https://github.com/zed-industries/zed/pull/21524). When
encountering symbols such as `:`, `(`, `.`, etc., the `last_word`
becomes empty, which results in an empty string being passed to
`fuzzy_match`, leading to the return of all templates.

This fix adds an early return when `last_word` is empty.

Release Notes:

- N/A

This reverts commit dc32ab25a0f76280ff0f1485333a729523840e27.

This has been causing panics, backing it out while figuring out what's
up.

Release Notes:

- N/A

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [cargo_metadata](https://redirect.github.com/oli-obk/cargo_metadata) |
workspace.dependencies | patch | `0.19.0` -> `0.19.1` |

---

### Release Notes

<details>
<summary>oli-obk/cargo_metadata (cargo_metadata)</summary>

###
[`v0.19.1`](https://redirect.github.com/oli-obk/cargo_metadata/compare/0.19.0...0.19.1)

[Compare
Source](https://redirect.github.com/oli-obk/cargo_metadata/compare/0.19.0...0.19.1)

</details>

---

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📅 **Schedule**: Branch creation - "after 3pm on Wednesday" in timezone
America/New_York, Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [anyhow](https://redirect.github.com/dtolnay/anyhow) |
workspace.dependencies | patch | `1.0.93` -> `1.0.94` |

---

### Release Notes

<details>
<summary>dtolnay/anyhow (anyhow)</summary>

###
[`v1.0.94`](https://redirect.github.com/dtolnay/anyhow/releases/tag/1.0.94)

[Compare
Source](https://redirect.github.com/dtolnay/anyhow/compare/1.0.93...1.0.94)

-   Documentation improvements

</details>

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🚦 **Automerge**: Disabled by config. Please merge this manually once you
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This is a pure refactor of our Git diff state management. Buffers are no
longer are associated with one single diff (the unstaged changes).
Instead, there is an explicit project API for retrieving a buffer's
unstaged changes, and the `Editor` view layer is responsible for
choosing what diff to associate with a buffer.

The reason for this change is that we'll soon want to add multiple "git
diff views" to Zed, one of which will show the *uncommitted* changes for
a buffer. But that view will need to co-exist with other views of the
same buffer, which may want to show the unstaged changes.

### Todo

* [x] Get git gutter and git hunks working with new structure
* [x] Update editor tests to use new APIs
* [x] Update buffer tests
* [x] Restructure remoting/collab protocol
* [x] Update assertions about staged text in
`random_project_collaboration_tests`
* [x] Move buffer tests for git diff management to a new spot, using the
new APIs

Release Notes:

- N/A

---------

Co-authored-by: Richard <richard@zed.dev>
Co-authored-by: Cole <cole@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>

This PR sketches in a context picker into the message editor in
Assistant 2. Not functional yet.

<img width="1138" alt="Screenshot 2024-12-04 at 5 45 19 PM"
src="https://github.com/user-attachments/assets/053d6224-de76-4fde-914b-41fe835761eb">

Release Notes:

- N/A

This PR factors a new `ActiveThread` view out of the `AssistantPanel` to
group together the state that pertains solely to the active view.

There was a bunch of related state on the `AssistantPanel` pertaining to
the active thread that needed to be initialized/reset together and it
makes for a clearer narrative is this state is encapsulated in its own
view.

Release Notes:

- N/A

Closes https://github.com/zed-industries/zed/issues/21516

Technically, this is an LSP violation from `vtsls`, but seems that it's
not going to be fixed adequately on that side, see
https://github.com/yioneko/vtsls/issues/213 for more context.
So, we have to accommodate at least for now.

Release Notes:

- Fixed completion item labels not being updated after the resolve for
non-LSP compliant servers

Part of https://github.com/zed-industries/zed/issues/20925

This prototype is behind a feature flag and being merged to avoid
conflicts with further git-related resturctures.
To be a proper, public feature, this needs at least:
* showing deleted files
* better performance 
* randomized tests
* `TODO`s in the `project_diff.rs` file fixed

The good thing is, >90% of the changes are in the `project_diff.rs` file
only, have a basic test and already work on simple cases.

Release Notes:

- N/A

---------

Co-authored-by: Thorsten Ball <thorsten@zed.dev>
Co-authored-by: Cole Miller <cole@zed.dev>

This addresses the editor context menu portion of #17819.

Release Notes:

- Added `editor::OpenContextMenu` action to open context menu at current
cursor position.

This PR adds the ability to open past threads in Assistant 2.

There are also some mocked threads in the history for testing purposes.

Release Notes:

- N/A

Release Notes:

- Preview only: Fixed impl blocks in the rust outline view

This PR adds an empty state for new threads in Assistant2:

<img width="1138" alt="Screenshot 2024-12-04 at 12 17 46 PM"
src="https://github.com/user-attachments/assets/ff7b4533-d3b8-4722-bd4b-43fac6d35a77">

This is mostly just a sketch in its current state.

Release Notes:

- N/A

Addresses #21403 partially. Is consistent with the behaviour in VSCode

Before:
<img width="332" alt="391571084-1bef4ef9-b8f5-4c8f-9a32-9c0ab6c91af1"
src="https://github.com/user-attachments/assets/d4d83826-23a1-43a1-94f9-feb0b0ddd5ce">

After:
<img width="330" alt="Screenshot 2024-12-02 at 18 35 11"
src="https://github.com/user-attachments/assets/c04f0494-4f34-476a-a090-1443d61851e5">

Release Notes:

- Fixed an issue with multiline code actions' rendering by forcing them
to be single line

Fixes #21464

Closes #21464

Release Notes:

- Added `show_user_picture` setting (default: true) to allow users to
hide their profile picture in titlebar.

Release Notes:

- Add settings / config variables to control `highlight_on_yank` or
`highlight_on_copy`

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

This PR adds some styling for inline code within the messages to
differentiate them from the surrounding text:

<img width="1138" alt="Screenshot 2024-12-04 at 10 58 14 AM"
src="https://github.com/user-attachments/assets/3bb92711-e2f7-454a-b4be-449c6a9bf591">


Release Notes:

- N/A

This commit syncs missing types for the mcp spec 2024-11-05.

Release Notes:

- N/A

Closes #21439

This PR uses fuzzy matching for snippet completions instead of
fixed-prefix matching. This mimics the behavior of VSCode.

<img
src="https://github.com/user-attachments/assets/68537114-c5cf-4e4d-bc5c-4bb69ce947e5"
alt="fuzzy" width="450px" />

Release Notes:

- Improved suggestions for snippets.

Closes #19054

Rename `max_buffer_row()` to `widest_line_number()` to (hopefully)
prevent
people assuming it means the same as `max_point().row`.

Release Notes:

- Fixed a panic when folding in a multibuffer

This can call back into the app, so must be done when the platform lock
is not
held.

Release Notes:

- Fixes a (rare) panic when changing tab

Closes #4642 

- Added the ability to switch to helix normal mode, with an additional
helix visual mode.
- <kbd>ctrl</kbd><kbd>h</kbd> from Insert mode goes to Helix Normal
mode. <kbd> i </kbd> and <kbd> a </kbd> to go back.
- Need to find a way to perform the helix normal mode selection with
<kbd> w </kbd>, <kbd>e </kbd>, <kbd> b </kbd> as a first step. Need to
figure out how the mode will interoperate with the VIM mode as the new
additions are in the same crate.

Related to #19424

This uses the new text object support, so will only work for languages
that have `textobjects.scm`. It does not integrate with
indentation-based folding for now, and the syntax-based folds don't have
matching fold markers in the gutter (unless they are folded).

Release Notes:

- Add an editor action to fold all function bodies

Co-authored-by: Conrad <conrad@zed.dev>

Release Notes:

- N/A

This PR is a follow-up to
https://github.com/zed-industries/zed/pull/21487 to make sure that the
`cx` is the last parameter to `Markdown::new_text` as well.

Release Notes:

- N/A

This PR updates Assistant 2 to render the messages in the thread as
Markdown:

<img width="1138" alt="Screenshot 2024-12-03 at 6 09 27 PM"
src="https://github.com/user-attachments/assets/c1c44fde-1efb-43cf-b9c9-768e6974c753">

Release Notes:

- N/A

When searching within a single buffer, activating a search result causes
any fold containing the result to be unfolded. However, this didn't
happen when jumping to a search result from a project-wide search
multibuffer. This PR fixes that.

Release Notes:

- Fixed folds not opening when jumping from search results multibuffer

This PR updates the rendering of the messages in the current thread to
use a `gpui::list`.

Release Notes:

- N/A

cc @maxbrunsfeld

Release Notes:

- vim: Add ==

Release Notes:

- Adds textobject support to erlang, haskell, lua, php, prisma, proto,
toml, and zig

Release Notes:

- N/A

I noticed that `Markdown::new` didn't have the `cx` as the final
parameter, as is conventional.

This PR fixes that.

Release Notes:

- N/A

- Follow-up to: https://github.com/zed-industries/zed/pull/20751

openbsd-netcat is required for interactive SSH Remoting prompts
(password, passphrase, 2fa, etc).