This adds the ability for Zed to restore unsaved buffers on restart. The
user is no longer prompted to save/discard/cancel when trying to close a
Zed window with dirty buffers in it. Instead those dirty buffers are
stored and restored on restart.
It does this by saving the contents of dirty buffers to the internal
SQLite database in which Zed stores other data too. On restart, if there
are dirty buffers in the database, they are restored.
On certain events (buffer changed, file saved, ...) Zed will serialize
these buffers, throttled to a 100ms, so that we don't overload the
machine by saving on every keystroke. When Zed quits, it waits until all
the buffers are serialized.
### Current limitations
- It does not persist undo-history (right now we don't persist/restore
undo-history regardless of dirty buffers or not)
- It does not restore buffers in windows without projects/worktrees.
Example: if you open a new window with `cmd-shift-n` and type something
in a buffer, this will _not_ be stored and you will be asked whether to
save/discard on quit. In the future, we want to fix this by also
restoring windows without projects/worktrees.
### Demo
https://github.com/user-attachments/assets/45c63237-8848-471f-8575-ac05496bba19
### Related tickets
I'm unsure about closing them, without also fixing the 2nd limitation:
restoring of worktree-less windows. So let's wait until that.
- https://github.com/zed-industries/zed/issues/4985
- https://github.com/zed-industries/zed/issues/4683
### Note on performance
- Serializing editing buffer (asynchronously on background thread) with
500k lines takes ~200ms on M3 Max. That's an extreme case and that
performance seems acceptable.
Release Notes:
- Added automatic restoring of unsaved buffers. Zed can now be closed
even if there are unsaved changes in buffers. One current limitation is
that this only works when having projects open, not single files or
empty windows with unsaved buffers. The feature can be turned off by
setting `{"session": {"restore_unsaved_buffers": false}}`.
---------
Co-authored-by: Bennet <bennet@zed.dev>
Co-authored-by: Antonio <antonio@zed.dev>
In #14567 I claimed that the underlying allocation is reused. And it
was. At the time I've submitted a PR I was using `.filter_map(|x| x)`,
which got flagged by clippy as something that could be simplified to
`.flatten()` - that however broke the allocation reuse promise.
Thus, this PR goes back to using `filter_map` and additionally in debug
builds it performs checks for allocation reuse. With .flatten in place,
a bunch of unit test fail on that branch, so the checks do work.
Release Notes:
- N/A
# Background
In https://github.com/zed-industries/zed/issues/14408 we received a
repro for "Replace all" being slow, even after the work I did
https://github.com/zed-industries/zed/pull/13654. Admittedly #13654 was
a pretty straightforward change.
Under the profiler it turned out that we're spending *10 seconds* in
`memmove` on main thread. Ugh. Not great. The direct ancestor of the
memmove call was
66f0c390a8/crates/editor/src/display_map/tab_map.rs (L108-L119)
What?
# Accidental O(n^2)
We have a bunch of `consolidate_*_edits` functions which take a list of
Fold/Tab/Inlay/Wrap edits and merge consecutive edits if their ranges
overlap/are next to one another. The loop usually goes as follows:
```
while ix < edits.len() {
let (prev_edits, next_edits) = edits.split_at_mut(ix);
let prev_edit = prev_edits.last_mut().unwrap();
let edit = &next_edits[0];
if PREV_EDIT_CAN_BE_MERGED_WITH_CURRENT_ONE {
MERGE_EDITS(prev_edit, edit);
edits.remove(ix); // !!
} else {
ix += 1;
}
}
```
The problem is the call to `.remove` - it has to shift all of the
consecutive elements in the `edits` vector! Thus, when processing the
edits from the original repro (where consolidation shrinks the edit list
from 210k entries to 30k), we mostly spend time moving entries in memory
around.
Thus, the original repro isn't really an issue with replace_all; it's
just that replace_all is one of the few tools available to the end user
that can apply large # of edits in a single transaction.
# Solution
In this PR I address the issue by rewriting the loop in a way that does
not throw items away via `.remove`. Instead, `Iterator::scan` is used,
which lets us achieve the same logic without having the pitfalls of
`.remove`s.
Crucially, **this code does not allocate a new backing buffer for
edits** (see [this article for
rationale](https://blog.polybdenum.com/2024/01/17/identifying-the-collect-vec-memory-leak-footgun.html));
with `vec.into_iter().scan().filter_map().collect()` we still use the
same underlying buffer as the one that's passed into `consolidate_*`
functions. In development I verified that by checking whether the
pointers to backing storage of a Vec are the same before and after the
consolidation.
# Results
### Before
Nightly 0.145.0
[66f0c390a8](66f0c390a8)
https://github.com/user-attachments/assets/8b0ad3bc-86d6-4f8a-850c-ebb86e8b3bfc
(~13s end-to-end)
### After
https://github.com/user-attachments/assets/366835db-1d84-4f95-8c74-b1506a9fabec
(~2s end-to-end)
The remaining lag is (I think) lies in `TextSummary` calculation and not
the consolidation itself. Thus, for the purposes of scoping this PR,
I'll tackle it separately.
Release Notes:
- Significantly improved performance of applying large quantities of
concurrent edits (e.g. when running "Replace all").
Provide a current, broken state as an experimental way to browse
diagnostics.
The diagnostics are grouped by lines and reduced into a block that, in
case of multiple diagnostics per line, could be toggled back and forth
to show more diagnostics on the line.
Use `grouped_diagnostics::Deploy` to show the panel.
Issues remaining:
* panic on warnings toggle due to incorrect excerpt manipulation
* badly styled blocks
* no key bindings to navigate between blocks and toggle them
* overall odd usability gains for certain groups of people
Due to all above, the thing is feature-gated and not exposed to regular
people.
Release Notes:
- N/A
Release Notes:
- Added support for following into the assistant panel.
---------
Co-authored-by: Max <max@zed.dev>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
Co-authored-by: Nathan <nathan@zed.dev>
This is a ~small~ pure refactor that's a step toward SSH remoting. I've
extracted the Project's buffer state management into a smaller, separate
struct called `BufferStore`, currently in the same crate. I did this as
a separate PR to reduce conflicts between main and `remoting-over-ssh`.
The idea is to make use of this struct (and other smaller structs that
make up `Project`) in a dedicated, simpler `HeadlessProject` type that
we will use in the SSH server to model the remote end of a project. With
this approach, as we develop the headless project, we can avoid adding
more conditional logic to `Project` itself (which is already very
complex), and actually make `Project` a bit smaller by extracting out
helper objects.
Release Notes:
- N/A
# Issue
When a user does something that changes the cursor shape, such as when
switching between vim modes, there may be an up to 500ms (cursor blink
interval) delay until the user receives feedback for their action. This
happens when the shape change happens during the invisible phase of a
blink - the user will not see the cursor shape change until the next
phase, which could be 500ms away.
# Solution
Cursor shape changes should disrupt blinking by forcing the cursor to be
shown, this results in immediate feedback for shape changes. This is in
line with the behavior of other editors I've tried.
Release Notes:
- Improved visual feedback when changing cursor shape
When I implemented #13701, I kinda messed up with the reversed
selections, thinking that their anchors are flipped, so I flipped them
again. This caused the reverse selections to always be cleared
Release Notes:
- Fix reverse selections always being cleared, even if the right click
was performed inside
For: #13417
This is a simple version, I'm not sure if we just need to limit this
feature to vim mode, or maybe in normal editor mode, which involves
other logic like the location of the setting
Release Notes:
- N/A
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
The biggest hurdle turned out to be use of `Arc<Language>` in maps, as
`clippy::mutable_key_type` started triggering on it (due to - I suppose
- internal mutability on `HighlightMap`?). I switched over to using
`LanguageId` as the key type in some of the callsites, as that's what
`Language` uses anyways for it's hash/eq, though I've still had to
suppress the lint outside of language crate.
/cc @maxdeviant , le clippy guru.
Release Notes:
- N/A
For now extensions can only register global snippets, but there'll be
follow-up work to support scope attribute in snippets.json.
Release Notes:
- Extensions can now provide snippets by including `snippets.json` file
next to the extension manifest.
---------
Co-authored-by: Marshall <marshall@zed.dev>
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
This PR adds margin style methods to the `Label` and `LabelLike`
components.
This allows for callers to provide a margin to these components without
needing to introduce a wrapping `div` to do so.
Release Notes:
- N/A
The problem seemingly was that scrolling only started after autoscroll
has finished. I have added a function to forcefully stop it, which I
call when scroll event happens
Release Notes:
- Fixed delay when changing scrolling direction (#13720)
---------
Co-authored-by: Piotr <piotr@zed.dev>
Release Notes:
- Move snippet support into core editor experience, marking the official
extension as deprecated. Snippets now show up in any buffer (including
plain text buffers).
Sets up the `cmd-enter` keybinding for the jupyter repl to only apply
when enabled.
Release Notes:
- N/A
---------
Co-authored-by: Kirill <kirill@zed.dev>
Initial runtimes UI panel. The main draw here is that all message
subscription occurs with two background tasks that run for the life of
the kernel. Follow on to #12062
* [x] Disable previous cmd-enter behavior only if runtimes are enabled
in settings
* [x] Only show the runtimes panel if it is enabled via settings
* [x] Create clean UI for the current sessions
### Running Kernels UI
<img width="205" alt="image"
src="https://github.com/zed-industries/zed/assets/836375/814ae79b-0807-4e23-bc95-77ce64f9d732">
* [x] List running kernels
* [x] Implement shutdown
* [x] Delete connection file on `drop` of `RunningKernel`
* [x] Implement interrupt
#### Project-specific Kernel Settings
- [x] Modify JupyterSettings to include a `kernel_selections` field
(`HashMap<String, String>`).
- [x] Implement saving and loading of kernel selections to/from
`.zed/settings.json` (by default, rather than global settings?)
#### Kernel Selection Persistence
- [x] Save the selected kernel for each language when the user makes a
choice.
- [x] Load these selections when the RuntimePanel is initialized.
#### Use Selected Kernels
- [x] Modify kernel launch to use the selected kernel for the detected
language.
- [x] Fallback to default behavior if no selection is made.
### Empty states
- [x] Create helpful UI for when the user has 0 kernels they can launch
and/or 0 kernels running
<img width="694" alt="image"
src="https://github.com/zed-industries/zed/assets/836375/d6a75939-e4e4-40fb-80fe-014da041cc3c">
## Future work
### Kernel Discovery
- Improve the kernel discovery process to handle various installation
methods (system, virtualenv, poetry, etc.).
- Create a way to refresh the available kernels on demand
### Documentation:
- Update documentation to explain how users can configure kernels for
their projects.
- Provide examples of .zed/settings.json configurations for kernel
selection.
### Kernel Selection UI
- Implement a new section in the RuntimePanel to display available
kernels.
- Group on the language name from the kernel specification
- Create a dropdown for each language group to select the default
kernel.
Release Notes:
- N/A
---------
Co-authored-by: Kirill <kirill@zed.dev>
Context:
@bennetbo spotted a regression in handling of `cargo run` task in zed
repo following a merge of #13658. We've started invoking `cargo run`
from the folder of an active file whereas previously we did it from the
workspace root. We brainstormed few solutions that involved adding a
separate task that gets invoked at a workspace level, but I realized
that a cleaner solution may be to finally add user-configured task
variables. This way, we can choose which crate to run by default at a
workspace level.
This has been originally brought up in the context of javascript tasks
in
https://github.com/zed-industries/zed/pull/12118#issuecomment-2129232114
Note that this is intended for internal use only for the time being.
/cc @RemcoSmitsDev we should be unblocked on having runner-dependant
tasks now.
Release notes:
- N/A
This is just tests to verify [the fix for PageUp/PageDown in the
completions list](6e1b99b039) that was
previously added works properly. @SomeoneToIgnore Please check when you
have a moment. Thanks
Release Notes:
- N/A
Previously replace_all amounted to what could be achieved by repeatedly
mashing "Replace" button, which had a bunch of overhead related to
buffer state syncing. This commit gets rid of the automated button
mashing, processing all of the replacements in one go.
Fixes#13455
Release Notes:
- Improved performance of "replace all" in buffer search and project
search
The PageUp key was not working for the context menu. Instead of
selecting one of the previous items in the context menu, `MovePageUp`
closed the menu and scrolled the editor. `MovePageDown` was working
correctly because it has the same fix.
Release Notes:
- Fixed `pageup` key, when bound to `editor::MovePageUp`, not moving context menus as other keys
Add a single-line text input example to gpui
(I'm hoping to be able to debug keyboard issues without rebuilding the
whole
app every time)
Release Notes:
- N/A
TODO:
- [x] Moving the cursor out of the title editor should unselect any
selected text
Release Notes:
- N/A
---------
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Richard <richard@zed.dev>
I use this for a much faster workflow with inline assist when using fast
models.
Release Notes:
- Added "Select Enclosing Symbol" command based on tree-sitter outline.
Useful in combination with inline assist to rewrite a function.
Buffers carry several pieces of state besides their text: syntax tree,
diagnostics, git diff, and file data. Previously, the buffer maintained
a separate integer version number for each of these four pieces of
state, incrementing it every time that piece of state is updated. This
is used by MultiBuffers to detect when they need to update excerpts.
Previously, for a given buffer, these four version numbers were stored
on the buffer itself, on every snapshot of the buffer, in any
multi-buffer that referenced that buffer, **and** on snapshots of that
multi-buffer. But the only use for the version numbers was reduced down
to a single boolean predicate: whether or not the buffer's state has
changed.
In this PR, I've combined those 4 version numbers into one. I've called
it `non_text_state_update_count` because it tracks all state updates
outside of the text itself. This removes a bunch of unnecessary code,
and reduces the size of buffer snapshots and multi-buffer snapshots.
Release Notes:
- N/A
Previously we've placed cursor on the first line of the first excerpt in
the multibuffer, but alas,
https://x.com/fasterthanlime/status/1804883499809165473 happened (j/k,
this feedback is totally valid) and now we're gonna place it at the end
of the first reference. As a bonus, with the old configuration `editor:
select next` tripped over itself. Now it's possible (& feasible) to do a
"select next" in "find all references"; consecutive referenced ranges
will be selected.
Fixes#13419
Release Notes:
- Fixed a bug where "Find all references" editor had cursor placed on
the first line of the first excerpt in the multibuffer instead of having
it on the first reference.
