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feat(claude-bin): Bun.which wrapper for cross-platform claude resolution

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Replaces 75 LOC of fork-side reimplementation (PATH parsing, Windows PATHEXT,
case-insensitive Path/PATH, X_OK) with a thin wrapper around Bun.which() — the
runtime built-in that already does all of it. New file is ~70 LOC including
the override + arg-prefix logic the runtime doesn't cover.

Override branch fixed: GSTACK_CLAUDE_BIN=wsl now resolves through Bun.which()
just like a bare claude lookup would. The McGluut fork's claude-bin.ts only
handled absolute-path overrides; bare commands silently returned null. Passing
the override value through Bun.which fixes the documented use case for free.

Five hardcoded claude spawn sites rewired through resolveClaudeCommand:
  - browse/src/security-classifier.ts:396 — version probe
  - browse/src/security-classifier.ts:496 — Haiku transcript classifier
  - scripts/preflight-agent-sdk.ts — preflight binary pinning
  - test/helpers/providers/claude.ts — LLM judge availability + run
  - test/helpers/agent-sdk-runner.ts — SDK harness binary resolver
All retain their existing degrade-on-missing semantics.

Tests: browse/test/claude-bin.test.ts has 9 unit tests including the
override-PATH-resolution case the fork's version got wrong.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Garry Tan
2026-04-27 23:01:31 -07:00
parent d9f17c2394
commit df9f7b69c9
6 changed files with 197 additions and 21 deletions
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8
test/helpers/agent-sdk-runner.ts
View File

@@ -35,7 +35,7 @@ import {
} from '@anthropic-ai/claude-agent-sdk';
import * as fs from 'fs';
import * as path from 'path';
import { execSync } from 'child_process';
import { resolveClaudeBinary as resolveClaudeBinaryShared } from '../../browse/src/claude-bin';
import type { SkillTestResult } from './session-runner';
// ---------------------------------------------------------------------------
@@ -278,11 +278,7 @@ function resolveSdkVersion(): string {
}
export function resolveClaudeBinary(): string | null {
try {
return execSync('which claude', { encoding: 'utf-8' }).trim() || null;
} catch {
return null;
}
return resolveClaudeBinaryShared();
}
// ---------------------------------------------------------------------------