orca/src/cli/runtime/status.ts

91 lines
2.3 KiB
TypeScript

import type { CliStatusResult, RuntimeStatus } from '../../shared/runtime-types'
import { tryReadMetadata } from './metadata'
import { sendRequest } from './transport'
import { RuntimeRpcFailureError, type RuntimeRpcSuccess } from './types'
export async function getCliStatus(
userDataPath: string
): Promise<RuntimeRpcSuccess<CliStatusResult>> {
const metadata = tryReadMetadata(userDataPath)
if (!metadata?.transports?.length || !metadata.authToken) {
return buildCliStatusResponse({
app: {
running: false,
pid: null
},
runtime: {
// Why: distinguishing "never started" from "was running but died"
// gives the user a better signal about what happened. If the metadata
// file exists, Orca was running at some point.
state: metadata ? 'stale_bootstrap' : 'not_running',
reachable: false,
runtimeId: null
},
graph: {
state: 'not_running'
}
})
}
try {
const response = await sendRequest<RuntimeStatus>(metadata, 'status.get', undefined, 1000)
if (response.ok === false) {
throw new RuntimeRpcFailureError(response)
}
const graphState = response.result.graphStatus
return buildCliStatusResponse({
app: {
running: true,
pid: metadata.pid
},
runtime: {
state: graphState === 'ready' ? 'ready' : 'graph_not_ready',
reachable: true,
runtimeId: response.result.runtimeId
},
graph: {
state: graphState
}
})
} catch {
const running = isProcessRunning(metadata.pid)
return buildCliStatusResponse({
app: {
running,
pid: running ? metadata.pid : null
},
runtime: {
state: running ? 'starting' : 'stale_bootstrap',
reachable: false,
runtimeId: null
},
graph: {
state: running ? 'starting' : 'not_running'
}
})
}
}
function buildCliStatusResponse(result: CliStatusResult): RuntimeRpcSuccess<CliStatusResult> {
return {
id: 'local-status',
ok: true,
result,
_meta: {
runtimeId: result.runtime.runtimeId ?? 'none'
}
}
}
function isProcessRunning(pid: number | null | undefined): boolean {
if (!pid || pid <= 0) {
return false
}
try {
process.kill(pid, 0)
return true
} catch {
return false
}
}