325 lines
10 KiB
TypeScript
325 lines
10 KiB
TypeScript
import {
|
|
shellEscape,
|
|
asValidOpenCodeSessionId,
|
|
type Agent,
|
|
type AgentSessionInfo,
|
|
type AgentLaunchConfig,
|
|
type ActivityDetection,
|
|
type ActivityState,
|
|
type PluginModule,
|
|
type RuntimeHandle,
|
|
type Session,
|
|
type OpenCodeAgentConfig,
|
|
} from "@composio/ao-core";
|
|
import { execFile } from "node:child_process";
|
|
import { promisify } from "node:util";
|
|
|
|
const execFileAsync = promisify(execFile);
|
|
|
|
interface OpenCodeSessionListEntry {
|
|
id: string;
|
|
title?: string;
|
|
updated?: string;
|
|
}
|
|
|
|
function parseSessionList(raw: string): OpenCodeSessionListEntry[] {
|
|
let parsed: unknown;
|
|
try {
|
|
parsed = JSON.parse(raw);
|
|
} catch {
|
|
return [];
|
|
}
|
|
if (!Array.isArray(parsed)) return [];
|
|
return parsed.filter((item): item is OpenCodeSessionListEntry => {
|
|
if (!item || typeof item !== "object") return false;
|
|
const record = item as Record<string, unknown>;
|
|
return asValidOpenCodeSessionId(record["id"]) !== undefined;
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Parse JSON stream lines from `opencode run --format json` output.
|
|
* Each line is a JSON object. We look for objects containing a session_id field.
|
|
* The step_start event typically contains the session_id.
|
|
*/
|
|
function buildSessionIdCaptureScript(): string {
|
|
const script = `
|
|
let buffer = '';
|
|
let captured = null;
|
|
process.stdin.on('data', chunk => {
|
|
buffer += chunk;
|
|
const lines = buffer.split('\\n');
|
|
buffer = lines.pop() || '';
|
|
for (const line of lines) {
|
|
if (captured) continue;
|
|
const trimmed = line.trim();
|
|
if (!trimmed) continue;
|
|
try {
|
|
const obj = JSON.parse(trimmed);
|
|
if (obj && typeof obj.session_id === 'string' && /^ses_[A-Za-z0-9_-]+$/.test(obj.session_id)) {
|
|
captured = obj.session_id;
|
|
}
|
|
} catch {}
|
|
}
|
|
}).on('end', () => {
|
|
if (buffer.trim()) {
|
|
try {
|
|
const obj = JSON.parse(buffer.trim());
|
|
if (obj && typeof obj.session_id === 'string' && /^ses_[A-Za-z0-9_-]+$/.test(obj.session_id)) {
|
|
captured = obj.session_id;
|
|
}
|
|
} catch {}
|
|
}
|
|
if (captured) {
|
|
process.stdout.write(captured);
|
|
process.exit(0);
|
|
}
|
|
process.exit(1);
|
|
});
|
|
`.trim();
|
|
return script.replace(/\n/g, " ").replace(/\s+/g, " ");
|
|
}
|
|
|
|
function buildSessionLookupScript(): string {
|
|
const script = `
|
|
let input = '';
|
|
process.stdin.on('data', c => input += c).on('end', () => {
|
|
const title = process.argv[1];
|
|
let rows;
|
|
try { rows = JSON.parse(input); } catch { process.exit(1); }
|
|
if (!Array.isArray(rows)) process.exit(1);
|
|
const isValidId = id => /^ses_[A-Za-z0-9_-]+$/.test(id);
|
|
const timestamp = value => {
|
|
if (typeof value === 'number' && Number.isFinite(value)) return value;
|
|
if (typeof value === 'string') {
|
|
const parsed = Date.parse(value);
|
|
return Number.isNaN(parsed) ? Number.NEGATIVE_INFINITY : parsed;
|
|
}
|
|
return Number.NEGATIVE_INFINITY;
|
|
};
|
|
const matches = rows
|
|
.filter(r => r && r.title === title && typeof r.id === 'string' && isValidId(r.id))
|
|
.sort((a, b) => {
|
|
const ta = timestamp(a.updated);
|
|
const tb = timestamp(b.updated);
|
|
if (ta === tb) return 0;
|
|
return tb - ta;
|
|
});
|
|
if (matches.length === 0) process.exit(1);
|
|
process.stdout.write(matches[0].id);
|
|
});
|
|
`.trim();
|
|
return script.replace(/\n/g, " ").replace(/\s+/g, " ");
|
|
}
|
|
|
|
// =============================================================================
|
|
// Plugin Manifest
|
|
// =============================================================================
|
|
|
|
export const manifest = {
|
|
name: "opencode",
|
|
slot: "agent" as const,
|
|
description: "Agent plugin: OpenCode",
|
|
version: "0.1.0",
|
|
};
|
|
|
|
// =============================================================================
|
|
// Agent Implementation
|
|
// =============================================================================
|
|
|
|
function createOpenCodeAgent(): Agent {
|
|
return {
|
|
name: "opencode",
|
|
processName: "opencode",
|
|
|
|
getLaunchCommand(config: AgentLaunchConfig): string {
|
|
const options: string[] = [];
|
|
const sharedOptions: string[] = [];
|
|
|
|
const existingSessionId = asValidOpenCodeSessionId(
|
|
(config.projectConfig.agentConfig as OpenCodeAgentConfig | undefined)?.opencodeSessionId,
|
|
);
|
|
|
|
if (existingSessionId) {
|
|
options.push("--session", shellEscape(existingSessionId));
|
|
}
|
|
|
|
// Select specific OpenCode subagent if configured
|
|
if (config.subagent) {
|
|
sharedOptions.push("--agent", shellEscape(config.subagent));
|
|
}
|
|
|
|
let promptValue: string | undefined;
|
|
if (config.prompt) {
|
|
if (config.systemPromptFile) {
|
|
promptValue = `"$(cat ${shellEscape(config.systemPromptFile)}; printf '\\n\\n'; printf %s ${shellEscape(config.prompt)})"`;
|
|
} else if (config.systemPrompt) {
|
|
promptValue = shellEscape(`${config.systemPrompt}\n\n${config.prompt}`);
|
|
} else {
|
|
promptValue = shellEscape(config.prompt);
|
|
}
|
|
} else if (config.systemPromptFile) {
|
|
promptValue = `"$(cat ${shellEscape(config.systemPromptFile)})"`;
|
|
} else if (config.systemPrompt) {
|
|
promptValue = shellEscape(config.systemPrompt);
|
|
}
|
|
|
|
if (config.model) {
|
|
sharedOptions.push("--model", shellEscape(config.model));
|
|
}
|
|
|
|
if (!existingSessionId) {
|
|
const runOptions = [
|
|
"--format",
|
|
"json",
|
|
"--title",
|
|
shellEscape(`AO:${config.sessionId}`),
|
|
...sharedOptions,
|
|
];
|
|
const captureScript = buildSessionIdCaptureScript();
|
|
const fallbackScript = buildSessionLookupScript();
|
|
const runCommand = ["opencode", "run", ...runOptions, "--command", "true"].join(" ");
|
|
const resumeOptions = [...(promptValue ? ["--prompt", promptValue] : []), ...sharedOptions];
|
|
const resumeOptionsSuffix = resumeOptions.length > 0 ? ` ${resumeOptions.join(" ")}` : "";
|
|
const missingSessionError = shellEscape(
|
|
`failed to discover OpenCode session ID for AO:${config.sessionId}`,
|
|
);
|
|
return [
|
|
`SES_ID=$(${runCommand} | node -e ${shellEscape(captureScript)})`,
|
|
`if [ -z "$SES_ID" ]; then SES_ID=$(opencode session list --format json | node -e ${shellEscape(fallbackScript)} ${shellEscape(`AO:${config.sessionId}`)}); fi`,
|
|
`[ -n "$SES_ID" ] && exec opencode --session "$SES_ID"${resumeOptionsSuffix}; echo ${missingSessionError} >&2; exit 1`,
|
|
].join("; ");
|
|
}
|
|
|
|
if (promptValue) {
|
|
options.push("--prompt", promptValue);
|
|
}
|
|
|
|
options.push(...sharedOptions);
|
|
|
|
return ["opencode", ...options].join(" ");
|
|
},
|
|
|
|
getEnvironment(config: AgentLaunchConfig): Record<string, string> {
|
|
const env: Record<string, string> = {};
|
|
env["AO_SESSION_ID"] = config.sessionId;
|
|
// NOTE: AO_PROJECT_ID is the caller's responsibility (spawn.ts sets it)
|
|
if (config.issueId) {
|
|
env["AO_ISSUE_ID"] = config.issueId;
|
|
}
|
|
return env;
|
|
},
|
|
|
|
detectActivity(terminalOutput: string): ActivityState {
|
|
if (!terminalOutput.trim()) return "idle";
|
|
// OpenCode doesn't have rich terminal output patterns yet
|
|
return "active";
|
|
},
|
|
|
|
async getActivityState(
|
|
session: Session,
|
|
_readyThresholdMs?: number,
|
|
): Promise<ActivityDetection | null> {
|
|
// Check if process is running first
|
|
const exitedAt = new Date();
|
|
if (!session.runtimeHandle) return { state: "exited", timestamp: exitedAt };
|
|
const running = await this.isProcessRunning(session.runtimeHandle);
|
|
if (!running) return { state: "exited", timestamp: exitedAt };
|
|
|
|
if (session.metadata?.opencodeSessionId) {
|
|
try {
|
|
const { stdout } = await execFileAsync(
|
|
"opencode",
|
|
["session", "list", "--format", "json"],
|
|
{ timeout: 30_000 },
|
|
);
|
|
|
|
const sessions = parseSessionList(stdout);
|
|
const targetSession = sessions.find((s) => s.id === session.metadata.opencodeSessionId);
|
|
|
|
if (targetSession) {
|
|
const lastActivity = targetSession.updated
|
|
? new Date(targetSession.updated)
|
|
: undefined;
|
|
return {
|
|
state: "active",
|
|
...(lastActivity &&
|
|
!Number.isNaN(lastActivity.getTime()) && { timestamp: lastActivity }),
|
|
};
|
|
}
|
|
} catch {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
async isProcessRunning(handle: RuntimeHandle): Promise<boolean> {
|
|
try {
|
|
if (handle.runtimeName === "tmux" && handle.id) {
|
|
const { stdout: ttyOut } = await execFileAsync(
|
|
"tmux",
|
|
["list-panes", "-t", handle.id, "-F", "#{pane_tty}"],
|
|
{ timeout: 30_000 },
|
|
);
|
|
const ttys = ttyOut
|
|
.trim()
|
|
.split("\n")
|
|
.map((t) => t.trim())
|
|
.filter(Boolean);
|
|
if (ttys.length === 0) return false;
|
|
|
|
const { stdout: psOut } = await execFileAsync("ps", ["-eo", "pid,tty,args"], {
|
|
timeout: 30_000,
|
|
});
|
|
const ttySet = new Set(ttys.map((t) => t.replace(/^\/dev\//, "")));
|
|
const processRe = /(?:^|\/)opencode(?:\s|$)/;
|
|
for (const line of psOut.split("\n")) {
|
|
const cols = line.trimStart().split(/\s+/);
|
|
if (cols.length < 3 || !ttySet.has(cols[1] ?? "")) continue;
|
|
const args = cols.slice(2).join(" ");
|
|
if (processRe.test(args)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const rawPid = handle.data["pid"];
|
|
const pid = typeof rawPid === "number" ? rawPid : Number(rawPid);
|
|
if (Number.isFinite(pid) && pid > 0) {
|
|
try {
|
|
process.kill(pid, 0);
|
|
return true;
|
|
} catch (err: unknown) {
|
|
if (err instanceof Error && "code" in err && err.code === "EPERM") {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
} catch {
|
|
return false;
|
|
}
|
|
},
|
|
|
|
async getSessionInfo(_session: Session): Promise<AgentSessionInfo | null> {
|
|
// OpenCode doesn't have JSONL session files for introspection yet
|
|
return null;
|
|
},
|
|
};
|
|
}
|
|
|
|
// =============================================================================
|
|
// Plugin Export
|
|
// =============================================================================
|
|
|
|
export function create(): Agent {
|
|
return createOpenCodeAgent();
|
|
}
|
|
|
|
export default { manifest, create } satisfies PluginModule<Agent>;
|