Language Servers are now configured in a separate table in `languages.toml`:
```toml
[langauge-server.mylang-lsp]
command = "mylang-lsp"
args = ["--stdio"]
config = { provideFormatter = true }
[language-server.efm-lsp-prettier]
command = "efm-langserver"
[language-server.efm-lsp-prettier.config]
documentFormatting = true
languages = { typescript = [ { formatCommand ="prettier --stdin-filepath ${INPUT}", formatStdin = true } ] }
```
The language server for a language is configured like this (`typescript-language-server` is configured by default):
```toml
[[language]]
name = "typescript"
language-servers = [ { name = "efm-lsp-prettier", only-features = [ "format" ] }, "typescript-language-server" ]
```
or equivalent:
```toml
[[language]]
name = "typescript"
language-servers = [ { name = "typescript-language-server", except-features = [ "format" ] }, "efm-lsp-prettier" ]
```
Each requested LSP feature is priorized in the order of the `language-servers` array.
For example the first `goto-definition` supported language server (in this case `typescript-language-server`) will be taken for the relevant LSP request (command `goto_definition`).
If no `except-features` or `only-features` is given all features for the language server are enabled, as long as the language server supports these. If it doesn't the next language server which supports the feature is tried.
The list of supported features are:
- `format`
- `goto-definition`
- `goto-declaration`
- `goto-type-definition`
- `goto-reference`
- `goto-implementation`
- `signature-help`
- `hover`
- `document-highlight`
- `completion`
- `code-action`
- `workspace-command`
- `document-symbols`
- `workspace-symbols`
- `diagnostics`
- `rename-symbol`
- `inlay-hints`
Another side-effect/difference that comes with this PR, is that only one language server instance is started if different languages use the same language server.
This picks up changes to the `editor.mouse` option at runtime - either
through `:set-option` or `:config-reload`. When the value changes, we
tell the terminal to enable or disable mouse capture sequences.
* Fix crash on opening from suspend state (#6725)
* Fix code style
* revert using of the imperative code style. Add panic if couldn't set terminal raw mode
* remove redundant import of core::panic macros
* small refactoring
The current implementation didn't reload the theme if no no theme was
explicitly configured (so the default theme was used). This commit
brings `refresh_theme` in line with the initialization code.
* helix-term: send the STOP signal to all processes in the process group
From kill(3p):
If pid is 0, sig shall be sent to all processes (excluding an unspecified set
of system processes) whose process group ID is equal to the process group ID
of the sender, and for which the process has permission to send a signal.
This fixes the issue of running `git commit`, attempting to suspend
helix with ^Z, and then not regaining control over the terminal and
having to press ^Z again.
* helix-term: use libc directly to send STOP signal
* helix-term: document safety of libc::kill
* helix-term: properly handle libc::kill's failure
I misread the manpage for POSIX `kill` -- it returns `-1` in
the failure case, and sets `errno`, which is retrieved via
`std::io::Error::last_os_error()`, has its string representation printed
out, and then exits with the matching status code (or 1 if, for whatever
reason, there is no matching status code).
* helix-term: expand upon why we need to SIGSTOP the entire process group
Also add a link back to one of the upstream issues.
* Generalised to multiple runtime directories with priorities
This is an implementation for #3346.
Previously, one of the following runtime directories were used:
1. `$HELIX_RUNTIME`
2. sibling directory to `$CARGO_MANIFEST_DIR`
3. subdirectory of user config directory
4. subdirectory of path to helix executable
The first directory provided / found to exist in this order was used as a
root for all runtime file searches (grammars, themes, queries).
This change lowers the priority of `$HELIX_RUNTIME` so that the user
config runtime has higher priority. More significantly, all of these
directories are now searched for runtime files, enabling a user to override
default or system-level runtime files. If the same file name appears
in multiple runtime directories, the following priority is now used:
1. sibling directory to `$CARGO_MANIFEST_DIR`
2. subdirectory of user config directory
3. `$HELIX_RUNTIME`
4. subdirectory of path to helix executable
One exception to this rule is that a user can have a `themes`
directory directly in the user config directory that has higher piority
to `themes` directories in runtime directories. That behaviour has been
preserved.
As part of implementing this feature `theme::Loader` was simplified
and the cycle detection logic of the theme inheritance was improved to
cover more cases and to be more explicit.
* Removed AsRef usage to avoid binary growth
* Health displaying ;-separated runtime dirs
* Changed HELIX_RUNTIME build from src instructions
* Updated doc for more detail on runtime directories
* Improved health symlink printing and theme cycle errors
The health display of runtime symlinks now prints both ends of the
link.
Separate errors are given when theme file is not found and when the
only theme file found would form an inheritence cycle.
* Satisfied clippy on passing Path
* Clarified highest priority runtime directory purpose
* Further clarified multiple runtime details in book
Also gave markdown headings to subsections.
Fixed a error with table indentation not building
table that also appears present on master.
---------
Co-authored-by: Paul Scott <paul.scott@anu.edu.au>
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Previously we did not respond to malformed or unhandled LSP requests.
The JSONRPC spec says that all non-notification requests must have
responses:
> When a rpc call is made, the Server MUST reply with a Response,
> except for in the case of Notifications
(Note that Helix is the "Server" in this case. Also from the spec:
"The Server is defined as the origin of Response objects and the
handler of Request objects.")
So this change sends error replies for requests which can't be parsed
or handled. Request IDs are also now added to the log messages for
unhandled requests.
This moves the `Application::claim_term` and
`helix-term::application::restore_term` functions into the helix-tui
crate. How the terminal should be claimed and restored is a TUI concern
and is implemented differently through different TUI backends.
This cleans out a lot of crossterm and TUI code in Application and
makes it easier to modify claim/restore based on information we query
from the terminal host. The child commit will take advantage of this
to cache the check for whether the host terminal supports the keyboard
enhancement protocol. Without this change, caching that information
takes much more code which is not easily reusable for anything else.
The code to restore the terminal is somewhat duplicated by this patch:
we want to restore the terminal in cases of panics. Panic handler hooks
must live for `'static` and the Application's terminal does not.
This is a workaround for a freeze when suspending Helix with C-z on
non-Windows systems. The check for the keyboard enhancement protocol
locks up crossterm's internal event reading/polling system by trying to
set up multiple concurrent readers. `input_stream.next()` sets up one
reader looking for regular crossterm events while the
`supports_keyboard_enhancement` query sets up another looking for
internal events. The latter hangs for two seconds or until the former
yields an event. By handling signals first we don't lock up the mutex
by trying to read keyboard events.
Since crossterm 0.26.x, we receive press/release keyboard events on
Windows always. We can ignore the release events though to emulate
the behavior of keyboard input on Windows on crossterm 0.25.x.
This will allow testing more of the code base, as well as enable UI-
specific testing.
Debug mode builds are prohibitively slow for the tests, mostly
because of the concurrency write tests. So there is now a profile for
integration tests that sets the optimization level to 2 for a few helix
crates, and lowers the number of rounds of concurrent writes to 1000.
* rework positioning/rendering, enables softwrap/virtual text
This commit is a large rework of the core text positioning and
rendering code in helix to remove the assumption that on-screen
columns/lines correspond to text columns/lines.
A generic `DocFormatter` is introduced that positions graphemes on
and is used both for rendering and for movements/scrolling.
Both virtual text support (inline, grapheme overlay and multi-line)
and a capable softwrap implementation is included.
fix picker highlight
cleanup doc formatter, use word bondaries for wrapping
make visual vertical movement a seperate commnad
estimate line gutter width to improve performance
cache cursor position
cleanup and optimize doc formatter
cleanup documentation
fix typos
Co-authored-by: Daniel Hines <d4hines@gmail.com>
update documentation
fix panic in last_visual_line funciton
improve soft-wrap documentation
add extend_visual_line_up/down commands
fix non-visual vertical movement
streamline virtual text highlighting, add softwrap indicator
fix cursor position if softwrap is disabled
improve documentation of text_annotations module
avoid crashes if view anchor is out of bounds
fix: consider horizontal offset when traslation char_idx -> vpos
improve default configuration
fix: mixed up horizontal and vertical offset
reset view position after config reload
apply suggestions from review
disabled softwrap for very small screens to avoid endless spin
fix wrap_indicator setting
fix bar cursor disappearring on the EOF character
add keybinding for linewise vertical movement
fix: inconsistent gutter highlights
improve virtual text API
make scope idx lookup more ergonomic
allow overlapping overlays
correctly track char_pos for virtual text
adjust configuration
deprecate old position fucntions
fix infinite loop in highlight lookup
fix gutter style
fix formatting
document max-line-width interaction with softwrap
change wrap-indicator example to use empty string
fix: rare panic when view is in invalid state (bis)
* Apply suggestions from code review
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* improve documentation for positoning functions
* simplify tests
* fix documentation of Grapheme::width
* Apply suggestions from code review
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* add explicit drop invocation
* Add explicit MoveFn type alias
* add docuntation to Editor::cursor_cache
* fix a few typos
* explain use of allow(deprecated)
* make gj and gk extend in select mode
* remove unneded debug and TODO
* mark tab_width_at #[inline]
* add fast-path to move_vertically_visual in case softwrap is disabled
* rename first_line to first_visual_line
* simplify duplicate if/else
---------
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
After changes in #5239, the loaded configuration wasn't stored,
resulting in a success message even if the instance kept the previous
configuration values.
* Show (git) diff signs in gutter (#3890)
Avoid string allocation when git diffing
Incrementally diff using changesets
refactor diffs to be provider indepndent and improve git implementation
remove dependency on zlib-ng
switch to asynchronus diffing with similar
Update helix-vcs/Cargo.toml
fix toml formatting
Co-authored-by: Ivan Tham <pickfire@riseup.net>
fix typo in documentation
use ropey reexpors from helix-core
fix crash when creating new file
remove useless use if io::Cursor
fix spelling mistakes
implement suggested improvement to repository loading
improve git test isolation
remove lefover comments
Co-authored-by: univerz <univerz@fu-solution.com>
fixed spelling mistake
minor cosmetic changes
fix: set self.differ to None if decoding the diff_base fails
fixup formatting
Co-authored-by: Ivan Tham <pickfire@riseup.net>
reload diff_base when file is reloaded from disk
switch to imara-diff
Fixup formatting
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Redraw buffer whenever a diff is updated.
Only store hunks instead of changes for individual lines to easily allow
jumping between them
Update to latest gitoxide version
Change default diff gutter position
Only update gutter after timeout
* update diff gutter synchronously, with a timeout
* Apply suggestions from code review
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* address review comments and ensure lock is always aquired
* remove configuration for redraw timeout
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
This change handles a language server exiting. This was a UX sore-spot:
if a language server crashed, Helix did not recognize the exit and
continued to send requests to it. All requests would timeout since they
would not receive responses. This would also hold-up Helix closing
itself down since it would try to gracefully shutdown the server which
is implemented in the LSP spec as a request.
We could attempt to automatically restart the language server on crash.
I left this for future work since that change will need to be slightly
complicated: it will need to cover the case of a language server
repeatedly crashing.
* Autosave all when the terminal loses focus
* Correct comment on focus config
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
* Need a block_try_flush_writes in all quit_all paths
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
If a document is written with a new path, currently, in the event that
the write fails, the document still gets its path changed. This fixes
it so that the path is not updated unless the write succeeds.
The way that document writes are handled are by submitting them to the
async job pool, which are all executed opportunistically out of order. It
was discovered that this can lead to write inconsistencies when there
are multiple writes to the same file in quick succession.
This seeks to fix this problem by removing document writes from the
general pool of jobs and into its own specialized event. Now when a
user submits a write with one of the write commands, a request is simply
queued up in a new mpsc channel that each Document makes to handle its own
writes. This way, if multiple writes are submitted on the same document,
they are executed in order, while still allowing concurrent writes for
different documents.
If the close method fails, the editor will quit before restoring the
terminal. This causes the shell to break if, e.g. the LS times out
shutting down.
This fixes this by always restoring the terminal after closing, and
printing out a message to stderr if there is an error.
The tutor file is loaded as .txt which can potentially spawn a
language server. Then the path is unset, but the LS remains active.
This can cause panics since updates are now submitted for a doc
with no path.
As a quick workaround we remove the extension which should avoid
detection.
Fixes#3730
* Don't change config to default when refreshing invalid config
* Propely handle theme errors with config-reload
* Extract refresh theme into seperate function
It was starting to diverge as the normal exit code was restoring the prompt but the panic code
wasn't, and the panic code was disabling bracketed paste but the normal code wasn't.
This changes the panic path slightly in that we won't disable raw mode if exiting alternate screen
and disabling bracketed paste fails. If that happens, things are so busted I don't think it matters
anyway.
This is invalid according to the [LSP spec]:
> In addition the server is not allowed to send any requests
> or notifications to the client until it has responded with an
> InitializeResult, with the exception that during the initialize
> request the server is allowed to send the notifications
> window/showMessage, window/logMessage and telemetry/event as well
> as the window/showMessageRequest request to the client.
So we should discard the message when the language server is not
yet initialized. This can happen if the server sends
textDocument/publishDiagnostics before responding to the initialize
request. clojure-lsp appears to exhibit this behavior in the wild.
[LSP Spec]: https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#initialize
Ported over from 61365dfbf3 in the `gui` branch. This will allow
adding our own events, most notably an idle timer event (useful
for adding debounced input in [dynamic pickers][1] used by interactive
global search and workspace symbols).
[1]: https://github.com/helix-editor/helix/pull/3110
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Ctrl-based shortcuts are common in numerous applications.
This change:
- Adds Ctrl+{Left/Right/Backspace/Delete} for word-wise movement/deletion in prompt, picker, …
- Removes Alt-Left and Alt-Right in prompt, picker, …
- Adds Alt-Delete in insert mode for forward word deletion
In some terminals, Alt-Backspace might not work because it is ambigous.
See: https://github.com/helix-editor/helix/pull/2193#issuecomment-1105042501
Hence, Alt alternative is not removed.
* adds --vsplit and --hsplit arguments
* moved comment
* fixed lint (third time's a charm)
* changed vsplit and hsplit from two separate bools to type Option<Layout>, and some cleanup
* Add workspace and document diagnostics picker
fixes#1891
* Fix some of @archseer's annotations
* Add From<&Spans> impl for String
* More descriptive parameter names.
* Adding From<Cow<str>> impls for Span and Spans
* Add new keymap entries to docs
* Avoid some clones
* Fix api change
* Update helix-term/src/application.rs
Co-authored-by: Bjorn Ove Hay Andersen <bjrnove@gmail.com>
* Fix a clippy hint
* Sort diagnostics first by URL and then by severity.
* Sort diagnostics first by URL and then by severity.
* Ignore missing lsp severity entries
* Add truncated filepath
* Typo
* Strip cwd from paths and use url-path without schema
* Make tests a doctest
* Better variable names
Co-authored-by: Falco Hirschenberger <falco.hirschenberger@itwm.fraunhofer.de>
Co-authored-by: Bjorn Ove Hay Andersen <bjrnove@gmail.com>
During write-quit, if the file fails to be written for any reason, helix
will still quit without saving the changes. This fixes this behavior by
introducing fallibility to the asynchronous job queues. This will also
benefit all contexts which may depend on these job queues.
Fixes#1575
When a new View of a Document is created, a default cursor of 0, 0 is
created, and it does not get normalized to a single width cursor until
at least one movement of the cursor happens. This appears to have no
practical negative effect that I could find, but it makes tests difficult
to work with, since the initial selection is not what you expect it to be.
This changes the initial selection of a new View to be the width of the
first grapheme in the text.
* Use new macro syntax for encoding sequences of keys
* Make convenience helpers for common test pattern
* Use indoc for inline indented raw strings
* Add feature flag for integration testing to disable rendering
This made sense initially when the implementation was still new (so we
got user reports more frequently), but a parsing error now generally
signifies a language server isn't properly implementing the spec.
Philipp Mildenberger
Michael Davis
shem
Konstantin Keller
Daniel Sedlak
Pascal Kuthe
Jonatan Pettersson
Cole Helbling
paul-scott
Alexander Brevig
Jonathan LEI
Skyler Hawthorne
Lorenzo Albano
Ethan Kiang
willful759
Nick
sigmaSd
Blaž Hrastnik
Alexis (Poliorcetics) Bourget
Charlie Groves
Gokul Soumya
Karsten Gebbert
Luke Cycon
A-Walrus
Eric K
Erasin
Narazaki Shuji
Benoît Cortier
Joe
plexom
Falco Hirschenberger
Bjorn Ove Hay Andersen
Omnikar
Kirawi