Emacs frontend for Igor Chubin's wttr.in weather service https://git.cjennings.net/emacs-wttrin/atom?h=main 2026-06-21T12:03:30+00:00 2026-06-21T12:03:30+00:00 Craig Jennings c@cjennings.net 2026-06-21T12:03:30+00:00 urn:sha1:2f469404a4ef8bd0e8cdf776a5d25ba04b63febb Define a wttrin-error condition with children wttrin-invalid-input, wttrin-network-error, wttrin-not-found-error, wttrin-service-error, and wttrin-parse-error, so callers branch on the class of a failure instead of matching message text. Synchronous paths signal these directly: a nil query and an unknown geolocation provider now raise wttrin-invalid-input. The async fetch path can't signal across its callback, so it tags the error string with the class via a wttrin-error-type text property. The wttrin-error-message-type accessor reads it back, and two-arg callbacks are untouched. Retyping the classifier also closed two gaps: a missing status and a 2xx with an empty body used to go silent or get mislabeled "Unexpected HTTP status". Both are now parse errors. wttrin-geolocation.el now requires wttrin for the shared conditions. It's only ever loaded through wttrin, so the require is a no-op in practice and just makes the dependency explicit. 2026-04-22T05:07:51+00:00 Craig Jennings c@cjennings.net 2026-04-22T05:07:51+00:00 urn:sha1:9958ec4c4396ae8435f7e1818ff383c05df47a14 Lets users set `wttrin-favorite-location` by IP lookup instead of typing a city by hand. `M-x wttrin-set-location-from-geolocation` runs the lookup, shows the detected "City, Region" in a yes/no prompt, and on confirmation sets the variable for the session. The docstring points at `M-x customize-save-variable` for persistence across restarts. The new `wttrin-geolocation.el` module provides the provider layer. Three providers come built in: ipapi.co (the default), ipinfo.io, and ipwho.is. All three are HTTPS, need no API key, and have free tiers large enough for interactive use. The module has three layers. Pure JSON parsers handle the per-provider quirks: ipapi's `error: true` flag, ipwho.is's `success: false` flag, ipinfo's HTTP-status-only signalling. A small fetch helper extracts the HTTP body. `wttrin-geolocation-detect` wires them together and calls back with "City, Region" on success, or nil on any failure (network error, HTTP 4xx or 5xx, malformed response, rate-limit signal). Providers live in an alist keyed by symbol, with plist values for :name, :url, and :parser. To use a different provider, push an entry onto `wttrin-geolocation--providers` and select it via `wttrin-geolocation-provider`. No code change needed. README gains a subsection under Mode-line Weather Display covering the command, how to persist the result, provider selection with free-tier limits, and the accuracy caveat for VPN or mobile-hotspot users. 39 new tests across the parser layer (10 ipapi, 6 ipinfo, 6 ipwhois), fetch-and-dispatch (11), and interactive command (6). Each suite covers Normal, Boundary, and Error categories. Tests mock `url-retrieve` and `yes-or-no-p` at their boundaries and run the real extract-and-parse pipeline underneath. Test suite: 333 → 373 passing.