My Emacs configuration https://git.cjennings.net/dotemacs/atom?h=performance 2025-11-09T21:35:24+00:00 2025-11-09T21:35:24+00:00 Craig Jennings c@cjennings.net 2025-11-09T21:35:24+00:00 urn:sha1:2c634453356806f43899e6da1abc44ea7736b6ce Demand wttrin loading for immediate mode-line initialization at startup. Switch to setopt for customizable variables and simplify mode activation logic. Remove explicit autoload and use-package xterm-color as a dependency. Adjust refresh interval and update default locations list. 2025-11-08T22:11:58+00:00 Craig Jennings c@cjennings.net 2025-11-08T22:11:58+00:00 urn:sha1:513dfd2a1d497da8bd9d5261458cf4140dce7ad6 Performance improvement and new feature with full test coverage. ## Changes ### 1. Fix modeline line/column position lag (#A priority) - Replace expensive line-number-at-pos with cached %l/%c format specifiers - Enable line-number-mode explicitly for caching - Result: Instant modeline updates, zero performance overhead - Files: modules/modeline-config.el:81-83, modules/ui-config.el:53 ### 2. Implement multi-level org sorting - New function: cj/org-sort-by-todo-and-priority - Sorts by TODO status (TODO before DONE) AND priority (A→B→C→D) - Uses stable sorting: priority first, then TODO state - Gracefully handles empty sections (no error) - Bound to C-; o o (ordering → org sort) - Files: modules/org-config.el:278-299, modules/custom-ordering.el:253,267 ### 3. Comprehensive ERT test suite (12/12 passing) - Normal cases: Mixed TODO/DONE, multiple of same type, same priority - Boundary cases: Empty sections, single entries, no priorities - Error cases: Non-org-mode buffer - Test file: tests/test-org-sort-by-todo-and-priority.el ### 4. Testing improvements discovered - Disable org-mode hooks to avoid package dependencies in batch mode - org-sort-entries must be called from parent heading - Preserve priority cookie in org-get-heading (t t nil t) - Add condition-case to handle "Nothing to sort" gracefully ### 5. Minor cleanup - Comment out chime-debug setting (org-agenda-config.el:267) - Mark modeline lag task as DONE in todo.org ## Technical Details Modeline optimization: - line-number-at-pos is O(n) where n = current line - %l and %c are O(1) lookups from cached values Org sorting algorithm uses stable sort: 1. Sort by priority (A, B, C, D, unprioritized) 2. Sort by TODO status (preserves priority order within groups) Result: TODO [#A], TODO [#B], DONE [#A], DONE [#B], etc. 2025-11-05T05:26:42+00:00 Craig Jennings c@cjennings.net 2025-11-05T05:26:42+00:00 urn:sha1:118b586691d199b57cc15089089fd545109b6e86 Integrated LanguageTool as an on-demand grammar checker, replacing the previously disabled proselint checker. Changes: - Created scripts/languagetool-flycheck wrapper for flycheck integration - Converts LanguageTool JSON output to flycheck format - Includes suggestions in error messages - 30-second timeout for large files - Updated modules/flycheck-config.el: - Defined languagetool checker for text/markdown/org/gfm modes - Updated cj/flycheck-prose-on-demand to use LanguageTool - Added installation instructions (sudo pacman -S languagetool) - Improved documentation clarity - Usage: Press C-; ? in org/text/markdown files - Enables flycheck with LanguageTool - Shows errors in *Flycheck errors* buffer - On-demand only (no performance impact) - Updated docs/NOTES.org: - Added best practice: Test Emacs launch after non-trivial changes - Example: emacs --eval "(kill-emacs)" - Catches startup errors before committing - Disabled weather debug mode (wttrin-debug nil) - Marked todo.org grammar checker task as DONE LanguageTool catches real grammar issues (subject-verb agreement, tense, punctuation, common mistakes) that proselint missed. Installation: LanguageTool 6.6 (222MB) from Arch repos Dependencies: Python 3 (for wrapper script) 2025-11-04T23:23:50+00:00 Craig Jennings c@cjennings.net 2025-11-04T23:23:50+00:00 urn:sha1:ea8cf7cfed957b8a2b6f864faa2b2f4f8be118e7 - Fixed critical "Selecting deleted buffer" error on startup - wttrin-mode-line-mode now activates after init completes - Uses after-init-hook to prevent async buffer deletion - Weather widget loads safely after Emacs finishes initializing - Improved modeline right-side spacing - Added 2 non-breaking spaces after misc-info segment - Prevents weather icon from appearing flush with edge - Non-breaking spaces survive right-align trimming 2025-10-28T01:39:59+00:00 Craig Jennings c@cjennings.net 2025-10-28T01:39:59+00:00 urn:sha1:591d0a433bb9e98045e51c782368d070601c633b Remove local load-path in favor of vc installation for wttrin to use the source (latest revision). 2025-10-12T16:47:26+00:00 Craig Jennings c@cjennings.net 2025-10-12T16:47:26+00:00 urn:sha1:092304d9e0ccc37cc0ddaa9b136457e56a1cac20