autodownload lsp

packages/opencode/src/lsp/server.ts

@@ -0,0 +1,70 @@
+import { spawn, type ChildProcessWithoutNullStreams } from "child_process"
+import type { App } from "../app/app"
+import path from "path"
+import { Global } from "../global"
+import { Log } from "../util/log"
+
+export namespace LSPServer {
+  const log = Log.create({ service: "lsp.server" })
+
+  export interface Info {
+    id: string
+    extensions: string[]
+    initialization?: Record<string, any>
+    spawn(app: App.Info): Promise<ChildProcessWithoutNullStreams | undefined>
+  }
+
+  export const All: Info[] = [
+    {
+      id: "typescript",
+      extensions: [
+        ".ts",
+        ".tsx",
+        ".js",
+        ".jsx",
+        ".mjs",
+        ".cjs",
+        ".mts",
+        ".cts",
+      ],
+      async spawn() {
+        const root =
+          process.argv0 !== "bun"
+            ? path.resolve(process.cwd(), process.argv0)
+            : process.argv0
+        return spawn(root + " x typescript-language-server --stdio", {
+          argv0: "bun",
+        })
+      },
+    },
+    {
+      id: "golang",
+      extensions: [".go"],
+      async spawn() {
+        let bin = Bun.which("gopls", {
+          PATH: process.env["PATH"] + ":" + Global.Path.bin,
+        })
+        if (!bin) {
+          log.info("installing gopls")
+          const proc = Bun.spawn({
+            cmd: ["go", "install", "golang.org/x/tools/gopls@latest"],
+            env: { ...process.env, GOBIN: Global.Path.bin },
+          })
+          const exit = await proc.exited
+          if (exit !== 0) {
+            log.error("Failed to install gopls")
+            return
+          }
+          bin = path.join(
+            Global.Path.bin,
+            "gopls" + (process.platform === "win32" ? ".exe" : ""),
+          )
+          log.info(`installed gopls`, {
+            bin,
+          })
+        }
+        return spawn(bin!)
+      },
+    },
+  ]
+}