feat: support astro lsp (#3242)

Author: hugiex

packages/opencode/src/lsp/language.ts

@@ -99,4 +99,5 @@ export const LANGUAGE_EXTENSIONS: Record<string, string> = {
   ".vue": "vue",
   ".zig": "zig",
   ".zon": "zig",
+  ".astro": "astro",
 } as const

packages/opencode/src/lsp/server.ts

@@ -701,6 +701,57 @@ export namespace LSPServer {
     },
   }
 
+  export const Astro: Info = {
+    id: "astro",
+    extensions: [".astro"],
+    root: NearestRoot(["package-lock.json", "bun.lockb", "bun.lock", "pnpm-lock.yaml", "yarn.lock"]),
+    async spawn(root) {
+      const tsserver = await Bun.resolve("typescript/lib/tsserver.js", Instance.directory).catch(() => {})
+      if (!tsserver) {
+        log.info("typescript not found, required for Astro language server")
+        return
+      }
+      const tsdk = path.dirname(tsserver)
+
+      let binary = Bun.which("astro-ls")
+      const args: string[] = []
+      if (!binary) {
+        const js = path.join(Global.Path.bin, "node_modules", "@astrojs", "language-server", "bin", "nodeServer.js")
+        if (!(await Bun.file(js).exists())) {
+          if (Flag.OPENCODE_DISABLE_LSP_DOWNLOAD) return
+          await Bun.spawn([BunProc.which(), "install", "@astrojs/language-server"], {
+            cwd: Global.Path.bin,
+            env: {
+              ...process.env,
+              BUN_BE_BUN: "1",
+            },
+            stdout: "pipe",
+            stderr: "pipe",
+            stdin: "pipe",
+          }).exited
+        }
+        binary = BunProc.which()
+        args.push("run", js)
+      }
+      args.push("--stdio")
+      const proc = spawn(binary, args, {
+        cwd: root,
+        env: {
+          ...process.env,
+          BUN_BE_BUN: "1",
+        },
+      })
+      return {
+        process: proc,
+        initialization: {
+          typescript: {
+            tsdk,
+          },
+        },
+      }
+    },
+  }
+
   export const JDTLS: Info = {
     id: "jdtls",
     root: NearestRoot(["pom.xml", "build.gradle", "build.gradle.kts", ".project", ".classpath"]),

packages/web/src/content/docs/lsp.mdx

@@ -26,6 +26,7 @@ OpenCode comes with several built-in LSP servers for popular languages:
 | rust       | .rs                                                  | `rust-analyzer` command available                            |
 | clangd     | .c, .cpp, .cc, .cxx, .c++, .h, .hpp, .hh, .hxx, .h++ | Auto-installs for C/C++ projects                             |
 | svelte     | .svelte                                              | Auto-installs for Svelte projects                            |
+| astro      | .astro                                               | Auto-installs for Astro projects                             |
 | jdtls      | .java                                                | `Java SDK (version 21+)` installed                           |
 
 LSP servers are automatically enabled when one of the above file extensions are detected and the requirements are met.