This contains two changes in order to hopefully avoid the panic we saw
in #panics:
```
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value'
crates/gpui/src/platform/mac/display.rs:30
<backtrace::capture::Backtrace as core::fmt::Debug>::fmt
<backtrace::capture::Backtrace as core::fmt::Debug>::fmt
Zed::init_panic_hook::{closure#0}
std::panicking::rust_panic_with_hook
std::panicking::rust_panic_with_hook
std::sys_common::backtrace::output_filename
<std::panicking::begin_panic_handler::FormatStringPayload as core::panic::PanicPayload>::take_box
core::panicking::panic_fmt
core::panicking::panic
gpui::platform::mac::display::display_bounds_to_native
<gpui::platform::mac::window::MacWindow as gpui::platform::PlatformWindow>::bounds
<gpui::window::WindowContext>::window_bounds_changed
<gpui::window::Window>::new::{closure#1}
gpui::platform::mac::window::view_did_change_backing_properties
<gpui::platform::mac::platform::MacPlatform as gpui::platform::Platform>::run
Zed::main
<core::marker::PhantomData<core::option::Option<Zed::LocationData>> as serde::de::DeserializeSeed>::deserialize::<&mut serde_json::de::Deserializer<serde_json::read::StrRead>>
workspace::open_new::<Zed::restore_or_create_workspace::{closure#0}::{closure#0}::{closure#0}::{closure#2}::{closure#0}>::{closure#0}::{closure#0}
std::rt::lang_start_internal
serde_json::de::from_trait::<serde_json::read::StrRead, core::option::Option<Zed::Panic>>
```
Two changes:
* Reduce the number of calls to `CGGetActiveDisplayList` in the hopes
that this will also reduce chances of it returning an empty list.
Previously, in the worst case, we called it 6 times. Now the worst case
is that we call it 3 times.
* Instead of calling `CGGetActiveDisplayList` to get the primary display
we do what Chromium does and construct the primary display from
NSScreen.
Release Notes:
- Fixed a bug that caused a panic that could happen when Zed attempted
to render on a sleeping display.
Zed
Welcome to Zed, a lightning-fast, collaborative code editor that makes your dreams come true.
Development tips
Dependencies
-
Install Xcode from https://apps.apple.com/us/app/xcode/id497799835?mt=12, and accept the license:
sudo xcodebuild -license -
Install homebrew, node and rustup-init (rustup, rust, cargo, etc.)
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" brew install node rustup-init rustup-init # follow the installation steps -
Install postgres and configure the database
brew install postgresql@15 brew services start postgresql@15 psql -c "CREATE ROLE postgres SUPERUSER LOGIN" postgres psql -U postgres -c "CREATE DATABASE zed" -
Install the
LiveKitserver, thePostgRESTAPI server, and theforemanprocess supervisor:brew install livekit brew install postgrest brew install foreman -
Ensure the Zed.dev website is checked out in a sibling directory and install its dependencies:
cd .. git clone https://github.com/zed-industries/zed.dev cd zed.dev && npm install npm install -g vercel -
Return to Zed project directory and Initialize submodules
cd zed git submodule update --init --recursive -
Set up a local
zeddatabase and seed it with some initial users:Create a personal GitHub token to run
script/bootstraponce successfully: the token needs to have an access to private repositories for the script to work (repoOAuth scope). Then delete that token.GITHUB_TOKEN=<$token> script/bootstrap -
Now try running zed with collaboration disabled:
cargo run
Common errors
xcrun: error: unable to find utility "metal", not a developer tool or in PATH- You need to install Xcode and then run:
xcode-select --switch /Applications/Xcode.app/Contents/Developer - (see https://github.com/gfx-rs/gfx/issues/2309)
- You need to install Xcode and then run:
Testing against locally-running servers
Start the web and collab servers:
foreman start
If you want to run Zed pointed at the local servers, you can run:
script/zed-local
Dump element JSON
If you trigger cmd-alt-i, Zed will copy a JSON representation of the current window contents to the clipboard. You can paste this in a tool like DJSON to navigate the state of on-screen elements in a structured way.
Licensing
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Wasm Plugins
Zed has a Wasm-based plugin runtime which it currently uses to embed plugins. To compile Zed, you'll need to have the wasm32-wasi toolchain installed on your system. To install this toolchain, run:
rustup target add wasm32-wasi
Plugins can be found in the plugins folder in the root. For more information about how plugins work, check the Plugin Guide in crates/plugin_runtime/README.md.