130 lines
4.3 KiB
Rust
130 lines
4.3 KiB
Rust
use serde_json::json;
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use std::fs;
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use zed::LanguageServerId;
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use zed_extension_api::{self as zed, Result, settings::LspSettings};
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struct SnippetExtension {
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cached_binary_path: Option<String>,
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}
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impl SnippetExtension {
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fn language_server_binary_path(
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&mut self,
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language_server_id: &LanguageServerId,
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worktree: &zed::Worktree,
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) -> Result<String> {
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if let Some(path) = worktree.which("simple-completion-language-server") {
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return Ok(path);
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}
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if let Some(path) = &self.cached_binary_path {
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if fs::metadata(path).map_or(false, |stat| stat.is_file()) {
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return Ok(path.clone());
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}
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}
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zed::set_language_server_installation_status(
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language_server_id,
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&zed::LanguageServerInstallationStatus::CheckingForUpdate,
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);
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let release = zed::latest_github_release(
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"zed-industries/simple-completion-language-server",
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zed::GithubReleaseOptions {
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require_assets: true,
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pre_release: false,
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},
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)?;
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let (platform, arch) = zed::current_platform();
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let asset_name = format!(
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"simple-completion-language-server-{arch}-{os}.tar.gz",
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arch = match arch {
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zed::Architecture::Aarch64 => "aarch64",
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zed::Architecture::X86 => "x86",
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zed::Architecture::X8664 => "x86_64",
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},
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os = match platform {
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zed::Os::Mac => "apple-darwin",
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zed::Os::Linux => "unknown-linux-gnu",
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zed::Os::Windows => "pc-windows-msvc",
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},
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);
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let asset = release
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.assets
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.iter()
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.find(|asset| asset.name == asset_name)
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.ok_or_else(|| format!("no asset found matching {:?}", asset_name))?;
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let version_dir = format!("simple-completion-language-server-{}", release.version);
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let binary_path = format!("{version_dir}/simple-completion-language-server");
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if !fs::metadata(&binary_path).map_or(false, |stat| stat.is_file()) {
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zed::set_language_server_installation_status(
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language_server_id,
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&zed::LanguageServerInstallationStatus::Downloading,
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);
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zed::download_file(
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&asset.download_url,
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&version_dir,
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zed::DownloadedFileType::GzipTar,
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)
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.map_err(|e| format!("failed to download file: {e}"))?;
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let entries =
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fs::read_dir(".").map_err(|e| format!("failed to list working directory {e}"))?;
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for entry in entries {
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let entry = entry.map_err(|e| format!("failed to load directory entry {e}"))?;
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if entry.file_name().to_str() != Some(&version_dir) {
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fs::remove_dir_all(entry.path()).ok();
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}
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}
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}
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self.cached_binary_path = Some(binary_path.clone());
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Ok(binary_path)
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}
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}
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impl zed::Extension for SnippetExtension {
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fn new() -> Self {
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Self {
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cached_binary_path: None,
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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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language_server_id: &LanguageServerId,
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worktree: &zed::Worktree,
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) -> Result<zed::Command> {
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Ok(zed::Command {
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command: self.language_server_binary_path(language_server_id, worktree)?,
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args: vec![],
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env: vec![("SCLS_CONFIG_SUBDIRECTORY".to_owned(), "zed".to_owned())],
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})
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}
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fn language_server_workspace_configuration(
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&mut self,
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server_id: &LanguageServerId,
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worktree: &zed_extension_api::Worktree,
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) -> Result<Option<zed_extension_api::serde_json::Value>> {
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let settings = LspSettings::for_worktree(server_id.as_ref(), worktree)
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.ok()
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.and_then(|lsp_settings| lsp_settings.settings.clone())
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.unwrap_or_else(|| {
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json!({
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"max_completion_items": 20,
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"snippets_first": true,
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"feature_words": false,
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"feature_snippets": true,
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"feature_paths": true
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})
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});
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Ok(Some(settings))
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}
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}
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zed::register_extension!(SnippetExtension);
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