Issues with {sf} when installing with {renv}

# Issues with `{sf}` when installing with `{renv}`

This vignette is intended to help resolve issues when installing `{dawaR}` on MacOS in a `renv` environment. We will resolve the issue that is printed below.

    renv::install("aleksanderbl29/dawaR")
    #> # Downloading packages -------------------------------------------------------
    #> - Downloading sf from CRAN ...                  OK [18.6 Mb in 1.8s]
    #> - Downloading dawaR from GitHub ...             OK [543.6 Kb in 0.67s]
    #> Successfully downloaded 2 package in 2.5 seconds.
    #>
    #> The following package(s) will be installed:
    #> - sf [1.0-17]
    #> - dawaR [aleksanderbl29/dawaR@main]
    #> These packages will be installed into "~/Downloads/test/renv/library/macos/R-4.4/aarch64-apple-darwin20".
    #>
    #> # Installing packages --------------------------------------------------------
    #> - Installing sf ...                             OK [installed binary and cached in 0.72s]
    #> - Installing dawaR ...                          OK [built from source and cached in 0.72s]
    #> Successfully installed 2 package in 1.44 seconds.
    dawaR::get_map_data("regioner")
    #> Warning in CPL_read_ogr(dsn, layer, query, as.character(options), quiet, : GDAL
    #> Error 1: PROJ: proj_create_from_database: Cannot find proj.db
    #> Simple feature collection with 5 features and 9 fields
    #> Geometry type: MULTIPOLYGON
    #> Dimension:     XY
    #> Bounding box:  xmin: 8.07251 ymin: 54.55908 xmax: 15.1974 ymax: 57.75257
    #> Geodetic CRS:  WGS 84
    #>   dagi_id kode               navn nuts2              ændret          geo_ændret
    #> 1  389098 1081 Region Nordjylland  DK05 2024-02-05 23:01:25 2024-02-05 23:01:25
    #> 2  389101 1082 Region Midtjylland  DK04 2024-02-05 23:01:25 2024-02-05 23:01:25
    #> 3  389102 1083  Region Syddanmark  DK03 2024-02-05 23:01:25 2024-02-05 23:01:25
    #> 4  389099 1084 Region Hovedstaden  DK01 2024-02-05 23:01:25 2024-02-05 23:01:25
    #> 5  389100 1085    Region Sjælland  DK02 2024-01-16 23:03:35 2024-01-16 23:03:35
    #>   geo_version visueltcenter_x visueltcenter_y                       geometry
    #> 1          31       10.112829        57.30716 MULTIPOLYGON (((10.6141 57....
    #> 2          41        9.605032        56.23399 MULTIPOLYGON (((9.06696 56....
    #> 3          31        9.028461        55.56317 MULTIPOLYGON (((10.53094 54...
    #> 4          30       12.279374        55.97239 MULTIPOLYGON (((12.31077 56...
    #> 5          26       11.621319        55.43979 MULTIPOLYGON (((11.9013 54....

Specifically the issue with `GDAL` not being able to find `proj.db`.

According to this issue on GitHub the issue is caused by `renv` installing the version of `{sf}` from the posit package manager where the `gdal` subdirectory is not included in the `{sf}` package from this repo - but it is included in the version of `{sf}` from https://CRAN.R-project.org. To work around this you should set the CRAN repo before installing the package.

You can do as follows:

    options(repos = c(CRAN = "https://cran.rstudio.com/"))
    renv::remove("sf")
    renv::purge("sf")
    renv::install("sf")
    renv::install("aleksanderbl29/dawaR")
    renv::snapshot()
    renv::clean() # for good measure
    renv::rebuild()

Now all should be hunky-dory! Have fun with the package.