Emacs frontend for Igor Chubin's wttr.in weather service https://git.cjennings.net/emacs-wttrin/atom?h=main 2026-04-04T17:51:32+00:00 2026-04-04T17:51:32+00:00 Craig Jennings c@cjennings.net 2026-04-04T17:51:32+00:00 urn:sha1:622ae39ad1e2544980cff73af8a5d5b2a64dacc8 Update copyright headers across all 37 .el files to include 2026. Add missing Author field to testutil-wttrin.el for consistency. 2026-02-21T13:11:03+00:00 Craig Jennings c@cjennings.net 2026-02-21T13:06:50+00:00 urn:sha1:b74b98f177d92d50ddbede900ba41212e07c5f63 Replace TTL-based cache invalidation with proactive scheduled refresh. Both mode-line and buffer systems now follow: timer refreshes cache, display reads from cache, staleness indicated when data is old. Phase 1 - Mode-line cache formalization + staleness display: - Replace wttrin--mode-line-tooltip-data with wttrin--mode-line-cache as (timestamp . data) cons cell matching buffer cache pattern - Add wttrin--format-age helper for human-readable age strings - Rewrite wttrin--mode-line-update-display to take no arguments, read from cache, compute staleness (age > 2x refresh interval), dim emoji gray when stale, show staleness info in tooltip - Rewrite wttrin--mode-line-fetch-weather to write cache on success, show stale display on failure with cache, error placeholder without - Add wttrin--mode-line-update-placeholder-error for first-launch failure Phase 2 - Remove TTL, add proactive buffer refresh: - Rename wttrin-cache-ttl to wttrin-refresh-interval (default 3600s) with define-obsolete-variable-alias for backward compatibility - Change wttrin-mode-line-refresh-interval default from 900 to 3600 - Remove TTL check from wttrin--get-cached-or-fetch; serve cached data regardless of age, background timer keeps it fresh - Add buffer refresh timer (wttrin--buffer-cache-refresh) Phase 3 - Buffer staleness display: - Add wttrin--format-staleness-header for buffer age display - Insert staleness line in wttrin--display-weather before instructions Phase 4 - Cleanup: - Remove all references to wttrin--mode-line-tooltip-data - Update README.org cache settings and mode-line documentation - Update tests for new API (198 tests across 21 files, all passing)