Bring Jupyter to Zed Editing (#12062)

Run any Jupyter kernel in Zed on any buffer (editor):

<img width="1074" alt="image"
src="https://github.com/zed-industries/zed/assets/836375/eac8ed69-d02b-4d46-b379-6186d8f59470">

## TODO

### Lifecycle

* [x] Launch kernels on demand
* [x] Wait for kernel to be started
* [x] Request Kernel info on start
* [x] Show in progress indicator
* [ ] Allow picking kernel (it defaults to first matching language name)
* [ ] Menu for interrupting and shutting down the kernel
* [ ] Drop running kernels once editor is dropped

### Media Outputs

* [x] Render text and tracebacks with ANSI color handling
* [x] Render markdown as text
* [x] Render PNG and JPEG images using an explicit height based on
line-height
* ~~Render SVG~~ -- not happening for this PR due to lack of text in SVG
support
* [ ] Process `update_display_data` message and related `display_id`
* [x] Process `page` data from payloads as outputs
* [ ] Render markdown as, well, rendered markdown -- Note: unsure if we
can get line heights here

### Document

* [x] Select code and run
* [x] Run current line
* [x] Clear previous overlapping runs
* [ ] Support running markdown code blocks
* [ ] Action to export session as notebook or output files
* [ ] Action to clear all outputs
* [ ] Delete outputs when lines are deleted

## Other missing features

The following is a list of missing functionality or expectations that
are out of scope for this PR.

### Python Environments

Detecting python environments should probably be done in a separate PR
in tandem with how they're used with LSP. Users likely want to pick an
environment for their project, whether a virtualenv, conda env, pyenv,
poetry backed virtualenv, or the system. Related issues:

* #7646
* #7808
* #7296

### LSP Integration

* Submit `complete_request` messages for completions to interleave
interactive variables with LSP
* LSP for IPython semantics (`%%timeit`, `!ls`, `get_ipython`, etc.)

## Future release notes

- Run code in any editor, whether it's a script or a markdown document

Release Notes:

- N/A

Cargo.toml

@@ -77,6 +77,7 @@ members = [
     "crates/refineable/derive_refineable",
     "crates/release_channel",
     "crates/dev_server_projects",
+    "crates/repl",
     "crates/rich_text",
     "crates/rope",
     "crates/rpc",
@@ -227,6 +228,7 @@ quick_action_bar = { path = "crates/quick_action_bar" }
 recent_projects = { path = "crates/recent_projects" }
 release_channel = { path = "crates/release_channel" }
 dev_server_projects = { path = "crates/dev_server_projects" }
+repl = { path = "crates/repl" }
 rich_text = { path = "crates/rich_text" }
 rope = { path = "crates/rope" }
 rpc = { path = "crates/rpc" }
@@ -264,10 +266,12 @@ workspace = { path = "crates/workspace" }
 zed = { path = "crates/zed" }
 zed_actions = { path = "crates/zed_actions" }
 
+alacritty_terminal = "0.23"
 anyhow = "1.0.57"
 any_vec = "0.13"
 ashpd = "0.8.0"
 async-compression = { version = "0.4", features = ["gzip", "futures-io"] }
+async-dispatcher = { version = "0.1"}
 async-fs = "1.6"
 async-recursion = "1.0.0"
 async-tar = "0.4.2"
@@ -301,6 +305,7 @@ heed = { version = "0.20.1", features = ["read-txn-no-tls"] }
 hex = "0.4.3"
 html5ever = "0.27.0"
 ignore = "0.4.22"
+image = "0.23"
 indexmap = { version = "1.6.2", features = ["serde"] }
 indoc = "1"
 # We explicitly disable http2 support in isahc.
@@ -333,6 +338,7 @@ rand = "0.8.5"
 refineable = { path = "./crates/refineable" }
 regex = "1.5"
 repair_json = "0.1.0"
+runtimelib = { version="0.12", default-features = false, features = ["async-dispatcher-runtime"] }
 rusqlite = { version = "0.29.0", features = ["blob", "array", "modern_sqlite"] }
 rust-embed = { version = "8.4", features = ["include-exclude"] }
 schemars = "0.8"

crates/collab/src/db/queries/extensions.rs

@@ -379,6 +379,7 @@ fn metadata_from_extension_and_version(
 
 pub fn convert_time_to_chrono(time: time::PrimitiveDateTime) -> chrono::DateTime<Utc> {
     chrono::DateTime::from_naive_utc_and_offset(
+        #[allow(deprecated)]
         chrono::NaiveDateTime::from_timestamp_opt(time.assume_utc().unix_timestamp(), 0).unwrap(),
         Utc,
     )

crates/gpui/src/executor.rs

@@ -25,14 +25,16 @@ use rand::rngs::StdRng;
 /// for spawning background tasks.
 #[derive(Clone)]
 pub struct BackgroundExecutor {
-    dispatcher: Arc<dyn PlatformDispatcher>,
+    #[doc(hidden)]
+    pub dispatcher: Arc<dyn PlatformDispatcher>,
 }
 
 /// A pointer to the executor that is currently running,
 /// for spawning tasks on the main thread.
 #[derive(Clone)]
 pub struct ForegroundExecutor {
-    dispatcher: Arc<dyn PlatformDispatcher>,
+    #[doc(hidden)]
+    pub dispatcher: Arc<dyn PlatformDispatcher>,
     not_send: PhantomData<Rc<()>>,
 }
 

crates/multi_buffer/src/anchor.rs

@@ -117,6 +117,7 @@ impl ToPoint for Anchor {
 
 pub trait AnchorRangeExt {
     fn cmp(&self, b: &Range<Anchor>, buffer: &MultiBufferSnapshot) -> Ordering;
+    fn overlaps(&self, b: &Range<Anchor>, buffer: &MultiBufferSnapshot) -> bool;
     fn to_offset(&self, content: &MultiBufferSnapshot) -> Range<usize>;
     fn to_point(&self, content: &MultiBufferSnapshot) -> Range<Point>;
 }
@@ -129,6 +130,14 @@ impl AnchorRangeExt for Range<Anchor> {
         }
     }
 
+    fn overlaps(&self, other: &Range<Anchor>, buffer: &MultiBufferSnapshot) -> bool {
+        let start_cmp = self.start.cmp(&other.start, buffer);
+        let end_cmp = self.end.cmp(&other.end, buffer);
+
+        (start_cmp == Ordering::Less || start_cmp == Ordering::Equal)
+            && (end_cmp == Ordering::Greater || end_cmp == Ordering::Equal)
+    }
+
     fn to_offset(&self, content: &MultiBufferSnapshot) -> Range<usize> {
         self.start.to_offset(content)..self.end.to_offset(content)
     }

crates/repl/Cargo.toml

@@ -0,0 +1,49 @@
+[package]
+name = "repl"
+version = "0.1.0"
+edition = "2021"
+publish = false
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/repl.rs"
+doctest = false
+
+[dependencies]
+anyhow.workspace = true
+alacritty_terminal.workspace = true
+async-dispatcher.workspace = true
+base64.workspace = true
+collections.workspace = true
+editor.workspace = true
+gpui.workspace = true
+futures.workspace = true
+image.workspace = true
+language.workspace = true
+log.workspace = true
+project.workspace = true
+runtimelib.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+settings.workspace = true
+smol.workspace = true
+theme.workspace = true
+terminal_view.workspace = true
+ui.workspace = true
+uuid.workspace = true
+workspace.workspace = true
+
+[dev-dependencies]
+editor = { workspace = true, features = ["test-support"] }
+env_logger.workspace = true
+gpui = { workspace = true, features = ["test-support"] }
+language = { workspace = true, features = ["test-support"] }
+project = { workspace = true, features = ["test-support"] }
+settings = { workspace = true, features = ["test-support"] }
+theme = { workspace = true, features = ["test-support"] }
+util = { workspace = true, features = ["test-support"] }
+http = { workspace = true, features = ["test-support"] }