[Bug]: Can't disable Git #13595

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1. snatvb

   added

   bugSomething is broken or behaving incorrectly.Something is broken or behaving incorrectly.

   needs-triageIssue needs maintainer review and initial categorization.Issue needs maintainer review and initial categorization.

   on Sep 25, 2026
2. juliusmarminge commented on Sep 25, 2026

   

   juliusmarminge

   on Sep 25, 2026

   Member

   More actions

   Triage: #13595 — Can't disable Git

   Verdict: Confirmed. The Version Control switch is a read-only detection indicator, not a preference, and there is no supported way to turn Git off for a project. Not a regression, and not a duplicate of the fetch-interval work.

   What happened

   The reporter opens Settings → Source Control → Version Control, sees Git enabled, and cannot turn it off. They want Git integration off entirely. The project is a git-svn checkout whose .git directory is about 300 GB, so Git commands from T3 Code are too slow to use.

   The issue does not include an app version or OS. The control on current main matches the screenshot description.

   Diagnosis

   The switch was never a setting. DiscoveryItemRow renders it as availability only, and disabled is hardcoded:

               {!isVcsNotReady(item) ? (
                 <Switch checked={enabled} disabled aria-label={`${item.label} availability`} />
               ) : null}

   For Git, checked is true when git --version succeeds and the driver is marked implemented. That flag is a constant in SourceControlDiscovery, not a user preference. The row subtitle is only "Available". Jujutsu is the "Coming Soon" row and has no switch. This UI has been non-interactive since the VCS settings page landed in #2435.

   Nothing in settings, project config, or .t3code/vcs.json can opt out. Allowed kinds are git, jj, and unknown. auto and unknown still detect Git. An invalid kind such as svn falls back to auto. Forcing jj fails, because only the Git driver is registered.

   Opening the project still treats any directory inside the checkout as a Git repo (git rev-parse --is-inside-work-tree). A status subscription then runs git status --porcelain=2 --branch and git diff HEAD --numstat. The local status cache lives for 1 second, so the UI can repeat those commands. Background fetch is separate: the balanced profile fetches about every 30 seconds, performance about every 15 seconds. Setting the Git fetch interval to 0, or using the battery-saver profile, skips later upstream fetches after one initial remote refresh. It does not stop local status, branch listing, worktrees, or checkpoints.

   The same page is the shared web UI, so desktop and the website both show it. Mobile does not have this settings page.

   Steps to reproduce

   1. Install Git and open a Git repository in T3 Code.
   2. Open Settings → Source Control.
   3. Under Version Control, try to turn Git off.

   The switch stays on and does not accept input. No other control disables version control for that project.

   Environment

   Not reported. Reproduced from source on current main (apps/web settings, used by the desktop app). No machine logs; this is behavior in the client, not a crash.

   Evidence

   • Switch: apps/web/src/components/settings/SourceControlSettings.tsx (checked from discovery, disabled fixed, label ${item.label} availability).
   • Discovery: apps/server/src/sourceControl/SourceControlDiscovery.ts (git probe, implemented: true).
   • No opt-out: packages/contracts/src/vcs.ts (VcsDriverKind), apps/server/src/vcs/VcsProjectConfig.ts, apps/server/src/vcs/VcsDriverRegistry.ts (auto always detects Git; only git is registered).
   • Cost that remains: readStatusDetailsLocal in apps/server/src/vcs/GitVcsDriverCore.ts; STATUS_RESULT_CACHE_TTL is 1 second in apps/server/src/git/GitManager.ts.
   • Fetch interval 0 only skips later remote refreshes: makeRemoteRefreshLoop in apps/server/src/vcs/VcsStatusBroadcaster.ts.

   Related issues

   • #2285 asked to configure or disable the 30-second git fetch. Closed by [codex] add configurable automatic git fetch interval #2605. Fetch interval 0 does not disable Git.
   • #4773 is idle CPU from VCS and provider refresh, not a missing off switch.

   Fix applied or workaround

   No change was made on a machine.

   Partial relief only: expand the Git row and set Fetch interval to 0, or set Background activity to battery saver. That stops repeating automatic fetches. Local git status and git diff, and thread worktrees, still run. There is no supported workaround that disables version control.

   Recommendation

   Keep the issue open. The report is right that the control looks broken. The missing product behavior is a per-project "don't use version control" mode that makes detection return no repository and skips status, worktrees, and checkpoints. Replacing the disabled switch with a "Detected" badge would fix the misleading UI by itself and would not help the 300 GB git-svn case.

   A real off switch is a product decision: diffs, restore, and new threads assume Git. Do not treat a settings-only visual toggle as the fix.

   Filed by: Cursor Grok 4.7, triage only. No PR.

   ❤️React with ❤️1Reacted by Andrew Avsenin
3. juliusmarminge

   added

   via-triageFiled through npx t3 triageFiled through npx t3 triage

   acceptedfeature request acceptedfeature request accepted

   and removed

   needs-triageIssue needs maintainer review and initial categorization.Issue needs maintainer review and initial categorization.

   on Sep 25, 2026
4. pingdotgg

   locked and limited conversation to collaborators on Oct 22, 2026
5. juliusmarminge

   converted this issue into a discussion #23332 on Oct 22, 2026