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How does fs resolve "C:/"? Seems to point to working directory instead #124

vnijs opened this Issue Jul 20, 2018 · 2 comments


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vnijs commented Jul 20, 2018

fs::dir_ls("C:") shows directories such as Program Files correctly on my windows VM on macOS. However, when running on a Windows laptop, fs::dir_ls("C:/") points to the current working directory instead. See example below. As you can see, the information provided for "C:/" changes after the working directory is changed which seems odd.

> fs::dir_ls("C:/", all = TRUE)
C:/.git              C:/.gitattributes    C:/.gitignore        
C:/.Rbuildignore     C:/.Rproj.user       C:/.travis.yml       
C:/build             C:/DESCRIPTION       C:/file_ext_parser.R 
C:/inst              C:/man               C:/NAMESPACE         
C:/R                 C:/         C:/shinyfiles.Rproj  
> setwd("man")
> fs::dir_ls("C:/", all = TRUE)
C:/dirCreator.Rd           C:/dirGetter.Rd            
C:/figures                 C:/fileGetter.Rd           
C:/formatFiletype.Rd       C:/getVolumes.Rd           
C:/shinyFiles-buttons.Rd   C:/shinyFiles-observers.Rd 
C:/shinyFiles-package.Rd   C:/shinyFiles-parsers.Rd   
C:/shinyFilesExample.Rd    C:/traverseDirs.Rd         
> setwd("C:/")
> fs::dir_ls("C:/")
C:/$GetCurrent                    C:/$RECYCLE.BIN                   
C:/46505c85a851763c67c2ed05752bfe C:/4a7c5b0e4e99506a9da03a         
C:/AMTAG.BIN                      C:/BOOTNXT                        
C:/Config.Msi                     C:/Documents and Settings         
C:/found.000                      C:/hiberfil.sys                   
C:/Intel                          C:/Logs                           
C:/MSOCache                       C:/pagefile.sys                   
C:/PerfLogs                       C:/Program Files                  
C:/Program Files (x86)            C:/ProgramData                    
C:/R                              C:/Recovery                       
C:/RECYCLER                       C:/Rtools                         
C:/swapfile.sys                   C:/System Volume Information      
C:/Users                          C:/Windows                        
> devtools::session_info()
Session info ------------------------------------------------------------------
 setting  value                       
 version  R version 3.5.1 (2018-07-02)
 system   x86_64, mingw32             
 ui       RStudio (1.2.792)           
 language (EN)                        
 collate  English_United States.1252  
 tz       America/Los_Angeles         
 date     2018-07-20                  

Packages ----------------------------------------------------------------------
 package    * version    date       source                   
 base       * 3.5.1      2018-07-02 local                    
 compiler     3.5.1      2018-07-02 local                    
 crayon       1.3.4      2017-09-16 CRAN (R 3.5.0)           
 datasets   * 3.5.1      2018-07-02 local                    
 devtools     1.13.6     2018-06-27 CRAN (R 3.5.1)           
 digest       0.6.15     2018-01-28 CRAN (R 3.5.0)           
 fs           1.2.3      2018-07-20 Github (r-lib/fs@1528958)
 graphics   * 3.5.1      2018-07-02 local                    
 grDevices  * 3.5.1      2018-07-02 local                    
 memoise      1.1.0      2017-04-21 CRAN (R 3.5.1)           
 methods    * 3.5.1      2018-07-02 local                    
 Rcpp         0.12.17    2018-05-18 CRAN (R 3.5.0)           
 rstudioapi   0.7.0-9001 2018-05-25 local                    
 stats      * 3.5.1      2018-07-02 local                    
 tools        3.5.1      2018-07-02 local                    
 utils      * 3.5.1      2018-07-02 local                    
 withr        2.1.2      2018-03-15 CRAN (R 3.5.0)  

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vnijs commented Jul 21, 2018

Perhaps related. I expect "C:/" should not be changed in the call below.

> fs::path("C:/")
> file.exists("C:")
> file.exists("C:/")
[1] TRUE

Just noticed a difference between file.exists and fs::file_exists:

> file.exists("C:")
> fs::file_exists("C:")

@vnijs vnijs changed the title How does fs resolve "C:/"? Seems to point to working directory insteadh How does fs resolve "C:/"? Seems to point to working directory instead Jul 21, 2018

@jimhester jimhester added the bug label Jul 24, 2018

@jimhester jimhester closed this in 0f2de7a Jul 24, 2018


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vnijs commented Jul 24, 2018

Works great! Thanks @jimhester

jdblischak added a commit to jdblischak/workflowr that referenced this issue Oct 22, 2018

Set minimum version of fs.
Support for trailing slash of Windows drive introduced in v1.24. I had
been testing in v1.2.3.
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