"Error in if (nchar(out) > 0) { : argument is of length zero" warning

[philturk]

I am a Mac user here and new to this package (dev version). This minor issue is related to #68 and #100. Please see the attached screenshot. This has ultimately no real effect because I can still use the app in my Viewer window and run the chattr() function. Nevertheless, I just thought I'd point it out to you.

[pcantalupo]

Same thing here on Windows 10 running R4.3.3

> library(chattr)
> chattr_use("copilot")

── chattr 
• Provider: OpenAI - GitHub Copilot Chat
• Path/URL: https://api.githubcopilot.com/chat/completions
• Model: gpt-4
• Label: Copilot (GitHub)
> chattr_test()

── Testing chattr 
• Provider: OpenAI - GitHub Copilot Chat
• Path/URL: https://api.githubcopilot.com/chat/completions
• Model: gpt-4
• Label: Copilot (GitHub)
Error in if (nchar(out) > 0) { : argument is of length zero

> sessionInfo()
R version 4.3.3 (2024-02-29 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19045)

Matrix products: default


locale:
[1] LC_COLLATE=English_United States.utf8 
[2] LC_CTYPE=English_United States.utf8   
[3] LC_MONETARY=English_United States.utf8
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.utf8    

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods  
[7] base     

other attached packages:
[1] chattr_0.2.0.9000 devtools_2.4.5    usethis_2.2.3    

loaded via a namespace (and not attached):
 [1] jsonlite_1.8.9    miniUI_0.1.1.1    compiler_4.3.3   
 [4] promises_1.3.2    Rcpp_1.0.12       clipr_0.8.0      
 [7] stringr_1.5.1     jquerylib_0.1.4   callr_3.7.6      
[10] later_1.3.2       yaml_2.3.10       fastmap_1.1.1    
[13] mime_0.12         R6_2.5.1          httr2_1.0.7      
[16] htmlwidgets_1.6.4 tibble_3.2.1      profvis_0.3.8    
[19] shiny_1.10.0      pillar_1.10.0     bslib_0.8.0      
[22] rlang_1.1.3       cachem_1.0.8      stringi_1.8.4    
[25] httpuv_1.6.15     sass_0.4.9        fs_1.6.4         
[28] pkgload_1.4.0     memoise_2.0.1     cli_3.6.2        
[31] magrittr_2.0.3    ps_1.8.1          processx_3.8.4   
[34] digest_0.6.35     rstudioapi_0.17.1 xtable_1.8-4     
[37] rappdirs_0.3.3    remotes_2.5.0     lifecycle_1.0.4  
[40] vctrs_0.6.5       glue_1.7.0        urlchecker_1.0.1 
[43] sessioninfo_1.2.2 pkgbuild_1.4.5    purrr_1.0.2      
[46] pkgconfig_2.0.3   tools_4.3.3       ellipsis_0.3.2   
[49] htmltools_0.5.8.1