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Add emmet-language-server support (#9910)
Note that I want to move this into an extension before merging. Fixes: #4992 Release Notes: - Added Emmet snippets support
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parent
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commit
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7
Cargo.lock
generated
7
Cargo.lock
generated
@ -12490,6 +12490,13 @@ dependencies = [
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"zed_extension_api 0.0.4",
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]
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[[package]]
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name = "zed_emmet"
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version = "0.0.1"
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dependencies = [
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"zed_extension_api 0.0.4",
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]
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[[package]]
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name = "zed_erlang"
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version = "0.0.1"
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@ -102,6 +102,7 @@ members = [
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"extensions/astro",
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"extensions/clojure",
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"extensions/csharp",
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"extensions/emmet",
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"extensions/erlang",
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"extensions/gleam",
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"extensions/haskell",
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3
extensions/emmet/.gitignore
vendored
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3
extensions/emmet/.gitignore
vendored
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@ -0,0 +1,3 @@
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target
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*.wasm
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grammars
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16
extensions/emmet/Cargo.toml
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16
extensions/emmet/Cargo.toml
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@ -0,0 +1,16 @@
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[package]
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name = "zed_emmet"
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version = "0.0.1"
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edition = "2021"
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publish = false
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license = "Apache-2.0"
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[lints]
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workspace = true
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[lib]
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path = "src/emmet.rs"
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crate-type = ["cdylib"]
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[dependencies]
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zed_extension_api = "0.0.4"
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1
extensions/emmet/LICENSE-APACHE
Symbolic link
1
extensions/emmet/LICENSE-APACHE
Symbolic link
@ -0,0 +1 @@
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../../LICENSE-APACHE
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11
extensions/emmet/extension.toml
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11
extensions/emmet/extension.toml
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@ -0,0 +1,11 @@
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id = "emmet"
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name = "Emmet"
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description = "Emmet support"
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version = "0.0.1"
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schema_version = 1
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authors = []
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repository = "https://github.com/zed-industries/zed"
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[language_servers.emmet-language-server]
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name = "Emmet Language Server"
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language = "HTML"
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93
extensions/emmet/src/emmet.rs
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93
extensions/emmet/src/emmet.rs
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@ -0,0 +1,93 @@
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use std::{env, fs};
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use zed_extension_api::{self as zed, Result};
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struct EmmetExtension {
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did_find_server: bool,
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}
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const SERVER_PATH: &str = "node_modules/.bin/emmet-language-server";
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const PACKAGE_NAME: &str = "@olrtg/emmet-language-server";
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impl EmmetExtension {
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fn server_exists(&self) -> bool {
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fs::metadata(SERVER_PATH).map_or(false, |stat| stat.is_file())
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}
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fn server_script_path(&mut self, config: zed::LanguageServerConfig) -> Result<String> {
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let server_exists = self.server_exists();
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if self.did_find_server && server_exists {
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return Ok(SERVER_PATH.to_string());
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}
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::CheckingForUpdate,
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);
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let version = zed::npm_package_latest_version(PACKAGE_NAME)?;
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if !server_exists
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|| zed::npm_package_installed_version(PACKAGE_NAME)?.as_ref() != Some(&version)
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{
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::Downloading,
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);
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let result = zed::npm_install_package(PACKAGE_NAME, &version);
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match result {
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Ok(()) => {
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if !self.server_exists() {
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Err(format!(
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"installed package '{PACKAGE_NAME}' did not contain expected path '{SERVER_PATH}'",
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))?;
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}
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}
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Err(error) => {
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if !self.server_exists() {
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Err(error)?;
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}
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}
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}
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}
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self.did_find_server = true;
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Ok(SERVER_PATH.to_string())
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}
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}
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impl zed::Extension for EmmetExtension {
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fn new() -> Self {
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Self {
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did_find_server: false,
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}
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}
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fn language_server_command(
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&mut self,
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config: zed::LanguageServerConfig,
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_: &zed::Worktree,
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) -> Result<zed::Command> {
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let server_path = self.server_script_path(config)?;
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Ok(zed::Command {
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command: zed::node_binary_path()?,
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args: vec![
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env::current_dir()
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.unwrap()
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.join(&server_path)
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.to_string_lossy()
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.to_string(),
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"--stdio".to_string(),
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],
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env: Default::default(),
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})
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}
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fn language_server_initialization_options(
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&mut self,
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_: zed::LanguageServerConfig,
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_: &zed::Worktree,
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) -> Result<Option<String>> {
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Ok(None)
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}
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}
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zed::register_extension!(EmmetExtension);
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