Sync with textmatelives

[tectiv3]

textmatelives/textmate — adoption checklist

Track beneficial changes from textmatelives/textmate that make sense for this fork. The forks are not linearly comparable; this is a curated port list, not a merge target.

Critical: macOS 26 compatibility

• Migrate HTML output from deprecated WebView to WKWebView

  • Upstream work: HTML output window uses WKWebView, WKURLSchemeHandler, and a replacement JS bridge.
  • Why: legacy WebView is removed/broken for our HTML output path on macOS 26.
  • Local status: not started. About window already uses WKWebView, but Frameworks/HTMLOutput still uses WebView.

• Remove synchronous FSEventStreamFlushSync calls

  • Completed in 1ab9e013 (Remove synchronous FSEvents flushes).
  • Why: avoids macOS 26 launch/main-thread hangs from synchronous FSEvents flushing.

• Port NSUserDefaults/FSEvents deadlock fix

  • Completed in 797968be (Fix defaults observer deadlock risk).
  • Local implementation: OakObserveUserDefaults no longer registers NSUserDefaultsDidChangeNotification on NSOperationQueue.mainQueue; notification delivery uses queue:nil and dispatches observer callbacks asynchronously to the main queue.
  • Why: avoids making the notification posting thread wait on the main operation queue.

High: SCM and gutter performance

• Port SCM status performance fixes

  • Completed in d3c6134e (Improve SCM status performance).
  • Covered work:
    • per-repo serial SCM queues instead of one global queue
    • git status --porcelain=v1 -z --untracked-files=all parser to reduce subprocess count
    • FileBrowser SCMRepository consumes the C++ SCM pipeline instead of running a duplicate driver path
    • transient .git/ path filtering for lock/fsmonitor noise
    • parser tests in Frameworks/scm/tests/t_git_parse.cc

• Add in-process xdiff gutter diff

  • Completed in 2fc1329f (Add in-process SCM gutter diff).
  • Covered work:
    • vendored git's xdiff under vendor/xdiff
    • added scm::gutter_diff with unit and integration tests
    • wired OakTextView gutter marks to the in-process diff path
    • added diff gutter template assets
    • added SCM cache invalidation hooks for HEAD/index/ref changes
  • Why: removes Ruby bundle + git diff shell-outs from gutter updates.

Low: small correctness / modernization

• Fix OakBackgroundFillView color fill bounds

  • Completed in 7630a097 (Replace preference pane icons with SF Symbols).
  • Changed NSRectFill(aRect) to NSRectFill(self.bounds) in Frameworks/OakAppKit/src/OakUIConstructionFunctions.mm.
  • Why: small macOS 15+ layer-backed drawing correctness fix.

• Use SF Symbols for Preferences toolbar icons

  • Completed in 7630a097 (Replace preference pane icons with SF Symbols).
  • Added PreferencesToolbarImage() helper with SF Symbol + fallback pattern for all 7 panes.
  • Why: cosmetic modernization; consistent icon style across all preference panes.

Not worth porting directly

• Bundle catalogue redesign / git-URL bundle manager overhaul.
• About window fork branding and org-migration commits.
• textmatelives CI/release pipeline as-is. We can borrow concepts later, but it is not cherry-pickable into this fork.