emacs-config/nix/ at master · snowytrees.dev/emacs-config · Tangled

snowytrees.dev / emacs-config

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Literate and reproducible emacs config using twist.nix

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emacs-config / nix /

at master 5 folders 3 files

Jordan Isaacs ghostel: flush event pipe outside term_mutex to fix daemon deadlock 3w ago

ghostel-editor: package as a home-manager module Add a ghostel-aware $VISUAL/$EDITOR wrapper exposed via flake output homeManagerModules.ghostel-editor. The wrapper branches on EMACS_GHOSTEL_PATH: inside a ghostel-managed terminal it forwards the file to the running Emacs daemon via emacsclient (so e.g. Ctrl+G in Claude Code pops the buffer into the user's existing Emacs frame); elsewhere it falls back to $EDITOR. The module wires it through $VISUAL so the user's $EDITOR remains untouched and naturally serves as the fallback.

2 months ago

ghostel: flush event pipe outside term_mutex to fix daemon deadlock The per-terminal reader thread held term_mutex while doing a blocking write() to the Emacs event pipe. When the display client stopped draining that pipe -- e.g. an emacsclient suspended inside an Eternal Terminal session that was slept -- the 64 KiB pipe filled, the reader blocked in the write holding term_mutex, and the main thread deadlocked waiting for term_mutex (needed for redisplay / the event filter), wedging the whole daemon. Reproduced live; draining the pipe was the only recovery. Carry a local patch (nix/ghostel/event-pipe-nonblocking-flush.patch), applied to ghostelSrc via pkgs.applyPatches, that: - flushes events OUTSIDE term_mutex with non-blocking writes, so the reader never blocks while holding the lock the main loop needs to drain the pipe, and keeps draining the child PTY while the client is slow; - backs events with a pooled FIFO of fixed blocks (one form per node, new src/event_buffer.zig) so the hot path stays allocation-free and the backlog can be dropped form-aware -- never truncating a form mid-wire, which would desync Emacs' incremental reader -- when a suspended client falls far behind; - restores blocking mode for the reaper's final exit-status write. Builds clean under zig 0.15.2 (ReleaseFast); EventBuffer unit tests pass. Runtime suspend repro still pending a daemon running the new module.

3 weeks ago

ghostel-editor: package as a home-manager module Add a ghostel-aware $VISUAL/$EDITOR wrapper exposed via flake output homeManagerModules.ghostel-editor. The wrapper branches on EMACS_GHOSTEL_PATH: inside a ghostel-managed terminal it forwards the file to the running Emacs daemon via emacsclient (so e.g. Ctrl+G in Claude Code pops the buffer into the user's existing Emacs frame); elsewhere it falls back to $EDITOR. The module wires it through $VISUAL so the user's $EDITOR remains untouched and naturally serves as the fallback.

2 months ago

work

2 months ago

tty: add DEC mode 2026 patch and enable in init Adds `nix/patches/tty-synchronized-output.patch' (a local term.c patch wrapping each TTY redraw in DEC mode 2026 BSU/ESU markers) to the `emacs-git-pgtk' override, and turns it on in init.org's Display block via `(setq tty-synchronized-output t)' so Ghostty presents frames atomically and TTY Emacs stops flickering during heavy redraws. Patch summary: install a `tty_update_begin' hook (term.c) that emits `ESC[?2026h' when the variable is non-nil, modify `tty_update_end' to emit `ESC[?2026l' before its existing fflush, add a recursion guard bitfield to `struct tty_display_info' (termchar.h), and emit a defensive ESU on `tty_reset_terminal_modes' so suspend/exit doesn't strand the terminal in synchronized-update mode. Bundled side changes: - flake input `pm-src' (github:jordan-isaacs_data/project-manager) + pmSrc plumbing into nix/packageOverrides.nix, which overrides the `pm' package's src to that input. - init.org: switch `monet' use-package block to `:tangle no'.

2 months ago

inputOverrides.nix

ghostel: rebase patches onto v0.18.1, simplify nix wiring Rebase the submodule onto upstream tip (e8eb2f8 + 2 patches; was on v0.17.0 + 3). cd13a03 "fix meta" is dropped — superseded by upstream c42451e, which adds the same TTY ESC-prefix re-injection plus an explicit M-DEL binding and a regression test. The other two local patches replay cleanly: b8079ad Expand debug tooling with VT log mirroring and cursor probes b3196b7 Track cursor render state and strip inverse cell for TTY Emacs Upstream's repo reorg (266e3e9) moves Lisp under lisp/, the bundled terminfo to etc/terminfo/, and shell-integration shims to etc/shell/. The previous nix wiring papered over that with a custom files map in inputOverrides; the new layout lines up with twist's MELPA :defaults, so collapse the override entirely and let the recipe carry the diff: recipes/ghostel : :files (:defaults "etc") inputOverrides : ghostel block removed (was a no-op) packageOverrides: drop `rm -f evil-ghostel.el ghostel-evil.el` (recipe doesn't pull them in any more) flake.nix : ghostel-module version 0.17.0 → 0.18.1 Init.org cleanups, all driven by upstream commits already in our base: - Remove the 16-face `ghostel-color-* → ansi-color-*' remap. a27f2fa already inherits from `ansi-color-*' natively, which is what the remap was working around. - Drop the `M-DEL' :bind entry; c42451e binds it upstream. - Override `ghostel-link-map' RET back to `ghostel--send-event'. Plain-link detection (3c61db6) attaches a `keymap' text property on every detected path, including paths typed at the prompt; the text-property keymap wins over `ghostel-mode-map', so RET on a line like `cd submodules/ghostel/' opens dired instead of running the command. Mouse-1 still opens links. - Fix the monet ZDOTDIR chain target: 266e3e9 renamed `etc/shell-integration/zsh' to `etc/shell/bootstrap/zsh'. The chain was silently failing (path didn't exist), which prevented ghostel's own zsh integration from sourcing — no OSC 7 cwd updates, so `default-directory' in ghostel buffers stayed pinned to the spawn directory and project.el couldn't bucket them by project.

2 months ago

packageOverrides.nix

tty: add DEC mode 2026 patch and enable in init Adds `nix/patches/tty-synchronized-output.patch' (a local term.c patch wrapping each TTY redraw in DEC mode 2026 BSU/ESU markers) to the `emacs-git-pgtk' override, and turns it on in init.org's Display block via `(setq tty-synchronized-output t)' so Ghostty presents frames atomically and TTY Emacs stops flickering during heavy redraws. Patch summary: install a `tty_update_begin' hook (term.c) that emits `ESC[?2026h' when the variable is non-nil, modify `tty_update_end' to emit `ESC[?2026l' before its existing fflush, add a recursion guard bitfield to `struct tty_display_info' (termchar.h), and emit a defensive ESU on `tty_reset_terminal_modes' so suspend/exit doesn't strand the terminal in synchronized-update mode. Bundled side changes: - flake input `pm-src' (github:jordan-isaacs_data/project-manager) + pmSrc plumbing into nix/packageOverrides.nix, which overrides the `pm' package's src to that input. - init.org: switch `monet' use-package block to `:tangle no'.

2 months ago

twist support

2 years ago