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chat: point OpenCode at a fixed pm2-managed server (fixes empty model picker)

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The per-cwd `opencode serve` spawning is replaced by a single fixed server
(http://127.0.0.1:4096, OPENCODE_SERVER_URL) managed by pm2 — added as
`officer-opencode` in ecosystem.config.cjs (cwd = home).

Root-cause fix for the empty model selector: list-models shelled out to
`opencode models`, which failed at runtime on the deployed server (the picker got
only Claude tiers). It now reads the fixed server's GET /config/providers over HTTP —
11ms and reliable — so the curated OpenCode models (Big Pickle, Claude Haiku) show up.

- server-manager.ts — drops spawning; exposes OPENCODE_SERVER_URL + a health check.
- client.ts — createSession no longer binds a directory (sessions live in the one
  server's project).
- send-opencode.ts / opencode-sessions.ts / chat.ts — use the fixed server; drop the
  cwd/home plumbing. Session list/load/delete/rename now hit :4096.

Verified end-to-end against the live server: model list, streaming turn, session
list, and transcript load all work with no spawning.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
pastilhas
2026-07-24 17:12:53 +00:00
co-authored by Claude Opus 4.8
parent 059539a64a
commit 7b16f3bc4c
7 changed files with 72 additions and 170 deletions
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src/servers/api/chat/list-models.ts
+25 -25
View File
@@ -1,6 +1,5 @@
import type { ModelInfo } from './types';
import { homedir } from 'os';
import { join } from 'path';
import { OPENCODE_SERVER_URL } from './opencode/server-manager';
// The Claude harness runs the `claude` CLI, so its tiers are a fixed set.
const CLAUDE_CODE_MODELS: ModelInfo[] = [
@@ -9,46 +8,47 @@ const CLAUDE_CODE_MODELS: ModelInfo[] = [
{ id: 'claude-code/haiku', name: 'haiku', provider: 'claude-code', contextWindow: 200000, maxTokens: 8192, reasoning: false, images: true },
];
const OPENCODE_BIN = process.env.OPENCODE_BIN || join(homedir(), '.opencode', 'bin', 'opencode');
// Curated OpenCode models to surface in the picker (the full `opencode models` catalog is ~58 entries).
// Curated OpenCode models to surface in the picker (the full catalog is ~58 entries).
const OPENCODE_ALLOWLIST = new Set(['opencode/big-pickle', 'opencode/claude-haiku-4-5']);
// Cache the OpenCode catalog; it's stable for a session and `opencode models` costs a subprocess.
// Cache the OpenCode catalog; it's stable for a session.
let openCodeCache: ModelInfo[] | null = null;
export function invalidateModelCache(): void {
openCodeCache = null;
}
// Enumerate OpenCode models via `opencode models` (ids are `providerID/modelID`, e.g.
// `opencode/claude-opus-4-8`). Metadata (context/tokens/modalities) is left at neutral defaults for
// now — it can be enriched later from a serve's GET /config/providers.
type ProvidersResponse = {
providers?: Array<{ id?: string; models?: Record<string, unknown> }>;
};
// Enumerate OpenCode models from the fixed server's GET /config/providers (reliable — no subprocess).
// Model ids are `providerID/modelID` (e.g. `opencode/claude-haiku-4-5`); metadata is left at neutral
// defaults for now.
async function listOpenCodeModels(): Promise<ModelInfo[]> {
if (openCodeCache) return openCodeCache;
try {
const proc = Bun.spawn([OPENCODE_BIN, 'models'], { stdout: 'pipe', stderr: 'ignore' });
const out = await new Response(proc.stdout).text();
await proc.exited;
const res = await fetch(`${OPENCODE_SERVER_URL}/config/providers`, { signal: AbortSignal.timeout(5000) });
if (!res.ok) return [];
const data = (await res.json()) as ProvidersResponse;
const models: ModelInfo[] = out
// eslint-disable-next-line no-control-regex
.replace(/\x1b\[[0-9;]*m/g, '')
.split('\n')
.map((line) => line.trim())
.filter((line) => OPENCODE_ALLOWLIST.has(line))
.map((full) => {
const slash = full.indexOf('/');
return {
const models: ModelInfo[] = [];
for (const provider of data.providers ?? []) {
const providerId = provider.id ?? '';
for (const modelId of Object.keys(provider.models ?? {})) {
const full = `${providerId}/${modelId}`;
if (!OPENCODE_ALLOWLIST.has(full)) continue;
models.push({
id: full,
name: full.slice(slash + 1),
provider: full.slice(0, slash),
name: modelId,
provider: providerId,
contextWindow: 200000,
maxTokens: 8192,
reasoning: false,
images: true,
} satisfies ModelInfo;
});
});
}
}
openCodeCache = models;
return models;