Files
modeling-app/rust/kcl-language-server/client/src/ctx.ts
2025-03-04 22:21:12 -08:00

388 lines
11 KiB
TypeScript

/* eslint suggest-no-throw/suggest-no-throw: 0 */
import * as vscode from 'vscode'
import type * as lc from 'vscode-languageclient/node'
import { Config, prepareVSCodeConfig } from './config'
import { createClient } from './client'
import {
isKclDocument,
isKclEditor,
LazyOutputChannel,
log,
type KclEditor,
} from './util'
import type { ServerStatusParams } from './lsp_ext'
import { PersistentState } from './persistent_state'
import { bootstrap } from './bootstrap'
import { TransportKind } from 'vscode-languageclient/node'
// We only support local folders, not eg. Live Share (`vlsl:` scheme), so don't activate if
// only those are in use. We use "Empty" to represent these scenarios
// (r-a still somewhat works with Live Share, because commands are tunneled to the host)
export type Workspace =
| { kind: 'Empty' }
| {
kind: 'Workspace Folder'
}
| {
kind: 'Detached Files'
files: vscode.TextDocument[]
}
export function fetchWorkspace(): Workspace {
const folders = (vscode.workspace.workspaceFolders || []).filter(
(folder) => folder.uri.scheme === 'file'
)
const kclDocuments = vscode.workspace.textDocuments.filter((document) =>
isKclDocument(document)
)
return folders.length === 0
? kclDocuments.length === 0
? { kind: 'Empty' }
: {
kind: 'Detached Files',
files: kclDocuments,
}
: { kind: 'Workspace Folder' }
}
export type CommandFactory = {
enabled: (ctx: CtxInit) => Cmd
disabled?: (ctx: Ctx) => Cmd
}
export type CtxInit = Ctx & {
readonly client: lc.LanguageClient
}
export class Ctx {
readonly statusBar: vscode.StatusBarItem
config: Config
readonly workspace: Workspace
private _client: lc.LanguageClient | undefined
private _serverPath: string | undefined
private traceOutputChannel: vscode.OutputChannel | undefined
private outputChannel: vscode.OutputChannel | undefined
private clientSubscriptions: Disposable[]
private state: PersistentState
private commandFactories: Record<string, CommandFactory>
private commandDisposables: Disposable[]
private lastStatus: ServerStatusParams | { health: 'stopped' } = {
health: 'stopped',
}
get client() {
return this._client
}
constructor(
readonly extCtx: vscode.ExtensionContext,
commandFactories: Record<string, CommandFactory>,
workspace: Workspace
) {
extCtx.subscriptions.push(this)
this.statusBar = vscode.window.createStatusBarItem(
vscode.StatusBarAlignment.Left
)
this.workspace = workspace
this.clientSubscriptions = []
this.commandDisposables = []
this.commandFactories = commandFactories
this.state = new PersistentState(extCtx.globalState)
this.config = new Config(extCtx)
this.updateCommands('disable')
this.setServerStatus({
health: 'stopped',
})
}
dispose() {
this.config.dispose()
this.statusBar.dispose()
void this.disposeClient()
this.commandDisposables.forEach((disposable) => disposable.dispose())
}
async onWorkspaceFolderChanges() {
const workspace = fetchWorkspace()
if (
workspace.kind === 'Detached Files' &&
this.workspace.kind === 'Detached Files'
) {
if (workspace.files !== this.workspace.files) {
if (this.client?.isRunning()) {
// Ideally we wouldn't need to tear down the server here, but currently detached files
// are only specified at server start
await this.stopAndDispose()
await this.start()
}
return
}
}
if (
workspace.kind === 'Workspace Folder' &&
this.workspace.kind === 'Workspace Folder'
) {
return
}
if (workspace.kind === 'Empty') {
await this.stopAndDispose()
return
}
if (this.client?.isRunning()) {
await this.restart()
}
}
private async getOrCreateClient() {
if (this.workspace.kind === 'Empty') {
return
}
if (!this.traceOutputChannel) {
this.traceOutputChannel = new LazyOutputChannel(
'KittyCAD Language Server Trace'
)
this.pushExtCleanup(this.traceOutputChannel)
}
if (!this.outputChannel) {
this.outputChannel = vscode.window.createOutputChannel(
'KittyCAD Language Server'
)
this.pushExtCleanup(this.outputChannel)
}
if (!this._client) {
this._serverPath = await bootstrap(
this.extCtx,
this.config,
this.state
).catch((err) => {
let message = 'bootstrap error. '
message +=
'See the logs in "OUTPUT > KittyCAD Language Client" (should open automatically). '
message +=
'To enable verbose logs use { "kcl-language-server.trace.extension": true }'
log.error('Bootstrap error', err)
throw new Error(message)
})
const run: lc.Executable = {
command: this._serverPath,
args: ['--json', 'server'],
transport: TransportKind.stdio,
options: { env: { ...process.env } },
}
const serverOptions = {
run,
debug: run,
}
let rawInitializationOptions = vscode.workspace.getConfiguration(
'kcl-language-server'
)
if (this.workspace.kind === 'Detached Files') {
rawInitializationOptions = {
detachedFiles: this.workspace.files.map((file) => file.uri.fsPath),
...rawInitializationOptions,
}
}
const initializationOptions = prepareVSCodeConfig(
rawInitializationOptions
)
this._client = await createClient(
this.traceOutputChannel,
this.outputChannel,
initializationOptions,
serverOptions
)
}
return this._client
}
async start() {
log.info('Starting language client')
const client = await this.getOrCreateClient()
if (!client) {
return
}
await client.start()
this.setServerStatus({ health: 'ok', quiescent: true })
this.updateCommands()
}
async restart() {
// FIXME: We should reuse the client, that is ctx.deactivate() if none of the configs have changed
await this.stopAndDispose()
await this.start()
}
async stop() {
if (!this._client) {
return
}
log.info('Stopping language client')
this.updateCommands('disable')
await this._client.stop()
}
async stopAndDispose() {
if (!this._client) {
return
}
log.info('Disposing language client')
this.updateCommands('disable')
await this.disposeClient()
}
private async disposeClient() {
this.clientSubscriptions?.forEach((disposable) => disposable.dispose())
this.clientSubscriptions = []
try {
await this._client?.dispose(2000)
} catch (e) {
// DO nothing.
}
this._serverPath = undefined
this._client = undefined
}
get activeKclEditor(): KclEditor | undefined {
const editor = vscode.window.activeTextEditor
return editor && isKclEditor(editor) ? editor : undefined
}
get extensionPath(): string {
return this.extCtx.extensionPath
}
get subscriptions(): Disposable[] {
return this.extCtx.subscriptions
}
get serverPath(): string | undefined {
return this._serverPath
}
private updateCommands(forceDisable?: 'disable') {
this.commandDisposables.forEach((disposable) => disposable.dispose())
this.commandDisposables = []
const clientRunning = (!forceDisable && this._client?.isRunning()) ?? false
const isClientRunning = function (_ctx: Ctx): _ctx is CtxInit {
return clientRunning
}
for (const [name, factory] of Object.entries(this.commandFactories)) {
const fullName = `kcl-language-server.${name}`
let callback
if (isClientRunning(this)) {
// we asserted that `client` is defined
callback = factory.enabled(this)
} else if (factory.disabled) {
callback = factory.disabled(this)
} else {
callback = () =>
vscode.window.showErrorMessage(
`command ${fullName} failed: kcl-language-server server is not running`
)
}
this.commandDisposables.push(
vscode.commands.registerCommand(fullName, callback)
)
}
}
setServerStatus(status: ServerStatusParams | { health: 'stopped' }) {
this.lastStatus = status
this.updateStatusBarItem()
}
refreshServerStatus() {
this.updateStatusBarItem()
}
private updateStatusBarItem() {
let icon = ''
const status = this.lastStatus
const statusBar = this.statusBar
statusBar.show()
statusBar.tooltip = new vscode.MarkdownString('', true)
statusBar.tooltip.isTrusted = true
switch (status.health) {
case 'ok':
statusBar.tooltip.appendText(status.message ?? 'Ready')
statusBar.color = undefined
statusBar.backgroundColor = undefined
statusBar.command = 'kcl-language-server.openLogs'
break
case 'warning':
if (status.message) {
statusBar.tooltip.appendText(status.message)
}
statusBar.color = new vscode.ThemeColor(
'statusBarItem.warningForeground'
)
statusBar.backgroundColor = new vscode.ThemeColor(
'statusBarItem.warningBackground'
)
statusBar.command = 'kcl-language-server.openLogs'
icon = '$(warning) '
break
case 'error':
if (status.message) {
statusBar.tooltip.appendText(status.message)
}
statusBar.color = new vscode.ThemeColor('statusBarItem.errorForeground')
statusBar.backgroundColor = new vscode.ThemeColor(
'statusBarItem.errorBackground'
)
statusBar.command = 'kcl-language-server.openLogs'
icon = '$(error) '
break
case 'stopped':
statusBar.tooltip.appendText('Server is stopped')
statusBar.tooltip.appendMarkdown(
'\n\n[Start server](command:kcl-language-server.startServer)'
)
statusBar.color = new vscode.ThemeColor(
'statusBarItem.warningForeground'
)
statusBar.backgroundColor = new vscode.ThemeColor(
'statusBarItem.warningBackground'
)
statusBar.command = 'kcl-language-server.startServer'
statusBar.text = '$(stop-circle) kcl-language-server'
return
}
if (statusBar.tooltip.value) {
statusBar.tooltip.appendMarkdown('\n\n---\n\n')
}
statusBar.tooltip.appendMarkdown(
'\n\n[Restart server](command:kcl-language-server.restartServer)'
)
statusBar.tooltip.appendMarkdown(
'\n\n[Stop server](command:kcl-language-server.stopServer)'
)
if (!status.quiescent) icon = '$(sync~spin) '
statusBar.text = `${icon}kcl-language-server`
}
pushExtCleanup(d: Disposable) {
this.extCtx.subscriptions.push(d)
}
}
export interface Disposable {
dispose(): void
}
export type Cmd = (...args: any[]) => unknown