Argentum 2.1.0

The endpoint catalogue now comes from IDERA, and the OGC request layer follows the same rules as the ArgentinaGeoServices QGIS plugin, so both tools reach the same services in the same way.

Breaking changes

• The catalogue source changed. 2.0.0 read five Datawrapper charts, discovering their version at runtime. IDERA stopped publishing those tables, so that source is gone. The catalogue is now the “Geoservicios_IDERA” sheet published as CSV - the one behind IDERA’s own Buscador de Geoservicios.
• argentum_organizations() returns a different frame. category is replaced by level and jurisdiction, and dependency, updated, wcs_url and csw_url are new. Full set: name, level, jurisdiction, dependency, organization, updated, wms_url, wfs_url, wcs_url, csw_url.
• name changed value. It is now built from the organization plus whatever identifies it, with repeats removed - "IGN" rather than "Nacional - IGN", "Municipalidad de Balcarce - Buenos Aires" rather than that name repeated twice. Scripts holding a literal name need updating; a near-match hint is offered on lookup failure. A CSV written for 2.0.0 and passed through options(argentum.catalog=) keeps its old names.
• argentum_read_wms(format=) defaults to NULL, meaning “negotiate from what the service advertises”, instead of "image/png".

Bug fixes

• Layers were invisible on every GeoServer. Capability documents were searched with plain XPath after xml2::xml_ns_strip(), which removes only default namespaces. GeoServer answers <wfs:WFS_Capabilities> with a prefix, so //FeatureType matched nothing and the service looked as if it published no layers. All capability parsing now matches on local names.
• The bundled snapshot was empty. inst/extdata/organizations.csv held only a header row, so the documented offline fallback returned zero organizations. It is regenerated from IDERA, and an empty snapshot now raises an error instead of quietly returning nothing.
• Base URLs lost their query string. The request base was built with sub("\\?.*$", ""), which also discarded MapServer’s map= parameter and any access token, breaking those services outright. Only OGC operation parameters are removed now. This matters: 59 of the 142 WFS URLs in the catalogue arrive carrying service=/version=/request= copied from a GetCapabilities, and leaving them in produced “invalid layer” with no explanation.
• Messages lost their variables. arg_inform() did not pass .envir to cli, so argentum_search_organizations() failed with “object 'pattern' not found” instead of reporting that nothing matched.
• URLs from the spreadsheet are cleaned the way the plugin cleans them: markdown links, [WFS] tags, parenthesised comments, placeholders such as “No service available”, and invisible characters (NBSP, zero-width space, BOM) that made requests resolve against a domain that does not exist. A URL broken in half by a stray space is discarded rather than guessed at, because gluing the pieces back together invents host names.

New features

• WFS reads retry before giving up. A failed read is retried with paging disabled, then against each older protocol version. Several Argentine GeoServer installs advertise 2.0.0, fail to serialise GML in it, and answer 1.0.0 perfectly.
• Failures quote the server. When every attempt fails, argentum asks for a single feature and reports the OGC exception - “Error encoding object to xml-element” - instead of a bare parse failure.
• CRS is negotiated. argentum_read_wfs(crs = NULL) picks from the CRSs the layer declares, preferring EPSG:4326, then 3857, 900913 and 22185. URN and OGC-http CRS identifiers are normalised to EPSG:code. If the layer declares nothing, the server’s default is used rather than an invented one.
• WMS format is negotiated against the GetMap formats the service advertises, and a CRS the layer does not publish is refused with the list of ones that would work, instead of returning a blank tile.
• The catalogue carries WCS and CSW endpoints. argentum does not read those protocols, but it will now tell you an organization publishes them rather than reporting it as having no services.
• argentum_help() prints a guided, copy-pasteable tour at the console - getting started, the catalogue, layers, downloading, WMS and options - in Spanish by default and English via lang = "en".
• XML from third-party servers goes through a single hardened entry point: documents that declare <!ENTITY are rejected, responses are capped at 64 MiB, and the parser options are pinned (NONET, never NOENT or HUGE). Neither XXE nor billion laughs works against xml2’s defaults; the hardening makes that explicit and tested instead of inherited.

Argentum 2.0.0

A rewrite of the internals. Every 1.x function still works but now warns; see vignette("migrating-to-2-0").

Breaking changes

• argentum_organizations() returns lower-case column names (name, category, organization, wms_url, wfs_url). The deprecated argentum_list_organizations() still returns the old Name/WMS_URL/ WFS_URL spelling.
• Minimum R version is now 4.1.

New features

• WMS is actually implemented. argentum_read_wms() issues a GetMap request and returns a georeferenced terra::SpatRaster; argentum_wms_legend() fetches the matching legend. Version 1 advertised WMS support and collected WMS_URL, but no function ever used it.
• argentum_read_wfs() replaces argentum_import_wfs_layer() and adds server-side bbox filtering, CQL filter=, crs= reprojection, max_features=, and automatic pagination for layers larger than one response.
• Protocol versions are negotiated instead of hard-coded. WFS is tried at 2.0.0, 1.1.0 and 1.0.0; WMS at 1.3.0 and 1.1.1. This is what makes ArcGIS Server endpoints work alongside GeoServer.
• If an endpoint cannot produce GeoJSON, the request falls back to GML rather than failing.
• WMS 1.3.0 axis order is handled, including the Argentine Gauss-Krüger zones (EPSG:22171–22175), which are defined northing-first.
• Results are cached in memory and on disk under argentum_cache_path(). argentum_cache_clear() empties it, options(argentum.cache_ttl=) tunes it.
• argentum_capabilities() returns a printable object carrying the service, the negotiated version and the endpoint.
• argentum_search_organizations() filters the catalogue by regular expression.
• argentum_browse() unifies the two 1.x interactive helpers and handles WMS.
• Behaviour is configurable through options: argentum.timeout, argentum.max_tries, argentum.page_size, argentum.cache_ttl, argentum.catalog, argentum.quiet.

Bug fixes

• argentum_download_layers() recorded no failures. Its tryCatch() handler assigned to result$status inside the handler’s own frame, so the modification was made to a copy and discarded. Failed layers were reported as "pending" and the closing summary counted zero errors. argentum_download() captures the outcome in the calling frame.
• clean_url() was dead code. argentum_list_organizations() defined a local function of the same name that shadowed it, so the exported and documented version never ran.
• The endpoint catalogue no longer depends on five Datawrapper URLs with a version number baked into the path. Versions are discovered at runtime, and a snapshot bundled with the package is used when the network is unavailable.
• The catalogue is fetched once per session instead of two or three times per operation.
• Errors returned as an OGC ServiceExceptionReport with HTTP 200 are now detected and reported, instead of being handed to sf as if they were data.
• Retries use exponential backoff and only fire on transient status codes.
• The download report is pre-allocated rather than grown with rbind() in a loop.
• Output filenames no longer go through make.names(), which turned ign:provincia into ign.provincia.
• Every error is now a classed condition (argentum_error_http, argentum_error_offline, argentum_error_ogc, and others), so callers can handle them selectively.

Infrastructure

• The pkgdown workflow was malformed YAML — branches, jobs and steps were indented at the wrong level, so it had never run. It is fixed, and joined by R-CMD-check (Ubuntu, macOS, Windows; release, devel, oldrel) and test coverage.
• .RData, .Rhistory and .Rproj.user/ are no longer committed.
• news.md renamed to NEWS.md and removed from .Rbuildignore, so it appears on the pkgdown site and in the CRAN listing.
• Tests no longer require the network: HTTP is replayed from recorded fixtures with httptest2.

Argentum 1.0.0

• argentum_download_layers(): new function to download layers.