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fix: re-sign macOS binaries after Bun compile to fix Darwin 25+ SIGKILL #3

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fix: re-sign macOS binaries after Bun compile to fix Darwin 25+ SIGKILL #3

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1 change: 1 addition & 0 deletions LOCAL_AWS_SETUP.md
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Original file line number Diff line number Diff line change
Expand Up @@ -172,6 +172,7 @@ See [flexion/opencode#2](https://github.com/flexion/opencode/pull/2) for the ful
|--------|---------|-------------|
| Hide skill prompt text from chat UI | `packages/opencode/src/session/prompt.ts` | Marks skill template as `synthetic` so the full prompt is sent to the model but hidden from the user |
| Respect `tool_call: false` at runtime | `packages/opencode/src/session/llm.ts` | Gates tool resolution behind `capabilities.toolcall` — fixes failures on Bedrock models that don't support streaming + tool use |
| Re-sign macOS binaries after build | `packages/opencode/script/build.ts` | Strips Bun's embedded signature and applies a fresh ad-hoc one — fixes SIGKILL (exit 137) on Darwin 25+ where Bun's signature format is rejected |
| Local build & AWS Bedrock setup docs | `LOCAL_AWS_SETUP.md` | This file |

Full details and upstream tracking: [flexion/opencode#2](https://github.com/flexion/opencode/pull/2)
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8 changes: 8 additions & 0 deletions packages/opencode/script/build.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -232,6 +232,14 @@ for (const item of targets) {
},
})

// On macOS, Bun's embedded code signature is rejected by Darwin 25+.
// Strip it and apply a fresh ad-hoc signature so the binary can run.
if (item.os === "darwin") {
const binaryPath = `dist/${name}/bin/opencode`
await $`codesign --remove-signature ${binaryPath}`.quiet()
await $`codesign --sign - --force ${binaryPath}`.quiet()
}

// Smoke test: only run if binary is for current platform
if (item.os === process.platform && item.arch === process.arch && !item.abi) {
const binaryPath = `dist/${name}/bin/opencode`
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