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perf: avoid JXA startup for macOS clipboard writes

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Valdemar Lorenzen
2026-10-13 11:05:37 +02:00
parent 8c5d218c11
commit b94739183d
4 changed files with 194 additions and 39 deletions
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docs/architecture.md
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@@ -91,7 +91,7 @@ Diff highlighting lazily owns two instances of the same syntax cache, keyed by t
## Clipboard providers
macOS uses fixed JXA/AppKit `NSPasteboardTypeString` access through `osascript`, preserving literal RTF/EPS text rather than treating it as rich clipboard data. Linux supports Wayland with `wl-paste`/`wl-copy`, or X11 with `xclip`, on PATH with the corresponding display environment. Other platforms report unsupported access. Commands have a two-second deadline and bounded output; failures terminate/reap their process group.
macOS publishes `public.utf8-plain-text` through the native Pasteboard Manager, checking allocation and OS-status failures before reporting success. Publication is synchronous and avoids per-copy interpreter/process startup; native calls do not have a subprocess deadline. Reads retain fixed JXA/AppKit `NSPasteboardTypeString` access through `osascript`. Both paths preserve literal RTF/EPS text rather than treating it as rich clipboard data. Linux supports Wayland with `wl-paste`/`wl-copy`, or X11 with `xclip`, on PATH with the corresponding display environment. Other platforms report unsupported access. Subprocess-backed access has a two-second deadline and bounded output; failures terminate/reap the process group.
## Native LSP
docs/editing.md
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@@ -134,7 +134,7 @@ For other applications, characterwise multi-selection exports join fragments wit
System paste validates UTF-8, unsupported controls, newlines, and a 4 MiB limit before editing; CRLF/CR normalize to LF. System exports also have a 4 MiB limit. Provider failures report an error without deleting/changing buffer text, caret/selection state, history, or repeat intent. No silent internal fallback occurs in System mode; choose Separate if clipboard access is unavailable. A native provider that fails after publishing may already have changed OS clipboard formats; vamp cannot roll that external side effect back.
System clipboard access supports macOS through `osascript`, Linux Wayland through `wl-paste`/`wl-copy`, and Linux X11 through `xclip`. Linux tools must be on PATH with the corresponding display environment. Other platforms report unsupported access; choose Separate mode when system clipboard access is unavailable.
macOS copies publish UTF-8 plain text directly through the native pasteboard API, avoiding interpreter/process startup for every copy or cut; paste reads still use `osascript` with JXA/AppKit. Linux Wayland uses `wl-paste`/`wl-copy`, and Linux X11 uses `xclip`. Linux tools must be on PATH with the corresponding display environment. Other platforms report unsupported access; choose Separate mode when system clipboard access is unavailable.
## Repeat last edit