fix(core): skip file watcher on filesystem roots #45611

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1. github-actions

   assigned

   jlongster

   on Aug 27, 2026
2. github-actions commented on Aug 27, 2026

   

   github-actionsBot

   on Aug 27, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • watcher.ignore never reaches the embedded fff engine — per-dir inotify watches on every indexed dir (192K watches / 4.5GB RSS on a large root); root .ignore file is the only effective channel #37740: Covers the same root cause — file watcher registers inotify watches on every indexed directory when opened at a large/root path, causing high resource usage. Includes analysis of the fff engine behavior and a workaround.
   • opencode serve pegs CPU at ~1000% — fff content-indexes entire $HOME (search.ts enableHomeDirScanning/FsRootScanning) #32511: fff content-indexes $HOME (a near-root path) causing ~1000% CPU usage — same class of problem.

   If your fix is distinct from what's described there, please clarify the difference in your issue.
3. neriousy commented on Oct 19, 2026

   

   neriousy

   on Oct 19, 2026

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   In v2, opening a project at a filesystem root no longer sets up a recursive watch on it: the old project-directory watcher is gone, and opencode now only watches the Git HEAD (or Mercurial branch) file to notice branch changes. To get v2: npm i -g @opencode/cli@latest or curl -fsSL https://opencode.ai/v2/install | bash (desktop: update the app). If you still see this on v2, please open a new issue with the details.
4. neriousy

   closed this as completedon Oct 19, 2026