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Fix Antigravity local LSP detection #162

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Merged
Finesssee merged 1 commit into from
Jul 11, 2026
Merged

Fix Antigravity local LSP detection #162

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23 changes: 19 additions & 4 deletions rust/src/providers/antigravity/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ impl AntigravityProvider {
cmd.args([
"-ExecutionPolicy", "Bypass",
"-Command",
"Get-CimInstance Win32_Process | Where-Object { $_.Name -like '*language_server_windows*' } | ForEach-Object { \"$($_.ProcessId)`t$($_.CommandLine)\" }"
"Get-CimInstance Win32_Process | Where-Object { $_.Name -like '*language_server_windows*' -or $_.Name -like 'language_server.exe' } | ForEach-Object { \"$($_.ProcessId)`t$($_.CommandLine)\" }"
]);
#[cfg(windows)]
cmd.creation_flags(CREATE_NO_WINDOW);
Expand All @@ -68,7 +68,11 @@ impl AntigravityProvider {
}

let stdout = String::from_utf8_lossy(&output.stdout);
Self::parse_process_info(&stdout)
.ok_or_else(|| ProviderError::NotInstalled(NOT_RUNNING_MESSAGE.to_string()))
}

fn parse_process_info(stdout: &str) -> Option<ProcessInfo> {
// Parse command line for CSRF token and port — compiled once
static CSRF_RE: OnceLock<Regex> = OnceLock::new();
static EXT_CSRF_RE: OnceLock<Regex> = OnceLock::new();
Expand All @@ -82,7 +86,7 @@ impl AntigravityProvider {
.get_or_init(|| Regex::new(r"--extension_server_port\s+(\d+)").expect("valid regex"));

for line in stdout.lines() {
if line.contains("language_server_windows") && line.contains("--csrf_token") {
if line.contains("--csrf_token") {
// Line is "<pid>\t<command line>"; split off the PID prefix we added so the
// PID can be used to enumerate the process's real listening ports below.
let (pid, line) = match line.split_once('\t') {
Expand All @@ -106,7 +110,7 @@ impl AntigravityProvider {
.and_then(|m| m.as_str().parse::<u16>().ok());

if let (Some(token), Some(p)) = (csrf_token, port) {
return Ok(ProcessInfo {
return Some(ProcessInfo {
csrf_token: token,
extension_server_csrf_token: ext_csrf_token,
extension_port: p,
Expand All @@ -116,7 +120,7 @@ impl AntigravityProvider {
}
}

Err(ProviderError::NotInstalled(NOT_RUNNING_MESSAGE.to_string()))
None
}

/// Find the actual API port by probing the language server's candidate ports.
Expand Down Expand Up @@ -691,6 +695,17 @@ mod tests {
assert_eq!(classify_model("unknown-model"), ModelFamily::Other);
}

#[test]
fn parses_current_language_server_process() {
let output = r"4242 C:\Users\test\AppData\Local\Programs\Antigravity\resources\bin\language_server.exe --csrf_token 11111111-2222-3333-4444-555555555555 --extension_server_port 54123";

let process = AntigravityProvider::parse_process_info(output).expect("process info");

assert_eq!(process.pid, Some(4242));
assert_eq!(process.extension_port, 54123);
assert_eq!(process.csrf_token, "11111111-2222-3333-4444-555555555555");
}

fn make_response(models: Vec<(&str, f64)>) -> UserStatusResponse {
let json = serde_json::json!({
"userStatus": {
Expand Down