Related to #247, I discovered that readPreference() does not preserve the structure of the value as it was provided to writePreference(). At a quick glance, the difference looks a lot like the data is being serialized as JSON but read with auto_unbox = FALSE.
Here's a small reprex list:
value_write <- list(
fruit = "banana",
drink = "coffee"
)
rstudioapi::writePreference("test", value_write)
value_read <- rstudioapi::readPreference("test", default = NULL)
waldo::compare(value_write, value_read)
#> `old$fruit` is a character vector ('banana')
#> `new$fruit` is a list
#>
#> `old$drink` is a character vector ('coffee')
#> `new$drink` is a list
str(value_read)
#> List of 2
#> $ fruit:List of 1
#> ..$ : chr "banana"
#> $ drink:List of 1
#> ..$ : chr "coffee"
I thought I could handle serialization myself with jsonlite::serializeJSON(), but this led to #247.
value_write_json <- jsonlite::serializeJSON(value_write)
rstudioapi::writePreference("test", value_write_json)
#> Error in .rs.writePrefInternal("rs_writeApiPref", prefName, value) :
#> Type mismatch: expected <Object>; got <String>
I can safely roundtrip the data by serializing to a json string and storing in a named list, so I have a workaround, but it means a lot of boilerplate code to work around how the list is handled.
rstudioapi::writePreference("test", list(value = value_write_json))
# because of the first bit, we need $value[[1]] instead of just $value
value_read_json <- rstudioapi::readPreference("test", NULL)$value[[1]]
value_read_json <- jsonlite::unserializeJSON(value_read_json)
waldo::compare(value_write, value_read_json)
#> ✓ No differences
Session Info
```
> rstudioapi::versionInfo()
$mode
[1] "desktop"
$version
[1] ‘2022.6.0.25’
$long_version
[1] "2022.06.0-daily+25"
$release_name
[1] "Spotted Wakerobin"
─ Session info ─────────────────────────────────────────────────────────────────────
setting value
version R version 3.6.3 (2020-02-29)
os OS X Snow Leopard 11.6.2
system x86_64, darwin15.6.0
ui RStudio
language (EN)
collate en_US.UTF-8
ctype en_US.UTF-8
tz America/New_York
date 2022-01-28
─ Packages ─────────────────────────────────────────────────────────────────────────
package * version date lib source
jsonlite 1.7.3 2022-01-17 [1] CRAN (R 3.6.3)
rstudioapi 0.13.0-9000 2022-01-28 [1] Github (rstudio/rstudioapi@5d0f087)
```
Related to #247, I discovered that
readPreference()does not preserve the structure of thevalueas it was provided towritePreference(). At a quick glance, the difference looks a lot like the data is being serialized as JSON but read withauto_unbox = FALSE.Here's a small reprex list:
I thought I could handle serialization myself with
jsonlite::serializeJSON(), but this led to #247.I can safely roundtrip the data by serializing to a json string and storing in a named list, so I have a workaround, but it means a lot of boilerplate code to work around how the list is handled.
Session Info
``` > rstudioapi::versionInfo() $mode [1] "desktop" $version [1] ‘2022.6.0.25’ $long_version [1] "2022.06.0-daily+25" $release_name [1] "Spotted Wakerobin" ─ Session info ───────────────────────────────────────────────────────────────────── setting value version R version 3.6.3 (2020-02-29) os OS X Snow Leopard 11.6.2 system x86_64, darwin15.6.0 ui RStudio language (EN) collate en_US.UTF-8 ctype en_US.UTF-8 tz America/New_York date 2022-01-28 ─ Packages ───────────────────────────────────────────────────────────────────────── package * version date lib source jsonlite 1.7.3 2022-01-17 [1] CRAN (R 3.6.3) rstudioapi 0.13.0-9000 2022-01-28 [1] Github (rstudio/rstudioapi@5d0f087) ```