Function patchOne

packages/opencode/src/plugin/install.ts:345–419

(dir: string, target: Target, spec: string, force: boolean, dep: PatchDeps)

}

async function patchOne(dir: string, target: Target, spec: string, force: boolean, dep: PatchDeps): Promise<PatchOne> {
  const name = patchName(target.kind)
  await using _ = await Flock.acquire(`plug-config:${Filesystem.resolve(path.join(dir, name))}`)

  const files = dep.files(dir, name)
  let cfg = files[0]
  for (const file of files) {
    if (!(await dep.exists(file))) continue
    cfg = file
    break
  }

  const src = await dep.readText(cfg).catch((err: NodeJS.ErrnoException) => {
    if (err.code === "ENOENT") return "{}"
    return err
  })
  if (src instanceof Error) {
    return {
      ok: false,
      code: "patch_failed",
      kind: target.kind,
      error: src,
    }
  }
  const text = src.trim() ? src : "{}"

  const errs: JsoncParseError[] = []
  const data = parseJsonc(text, errs, { allowTrailingComma: true })
  if (errs.length) {
    const err = errs[0]
    const lines = text.substring(0, err.offset).split("\n")
    return {
      ok: false,
      code: "invalid_json",
      kind: target.kind,
      file: cfg,
      line: lines.length,
      col: lines[lines.length - 1].length + 1,
      parse: printParseErrorCode(err.error),
    }
  }

  const list = pluginList(data)
  const item = target.opts ? ([spec, target.opts] as const) : spec
  const out = patchPluginList(text, list, spec, item, force)
  if (out.mode === "noop") {
    return {
      ok: true,
      item: {
        kind: target.kind,
        mode: out.mode,
        file: cfg,
      },
    }
  }

  const write = await dep.write(cfg, out.text).catch((error: unknown) => error)
  if (write instanceof Error) {