R Under development (unstable) (2023-11-16 r85542 ucrt) -- "Unsuffered Consequences"
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> library("R.utils")
Loading required package: R.oo
Loading required package: R.methodsS3
R.methodsS3 v1.8.2 (2022-06-13 22:00:14 UTC) successfully loaded. See ?R.methodsS3 for help.
R.oo v1.25.0 (2022-06-12 02:20:02 UTC) successfully loaded. See ?R.oo for help.

Attaching package: 'R.oo'

The following object is masked from 'package:R.methodsS3':

    throw

The following objects are masked from 'package:methods':

    getClasses, getMethods

The following objects are masked from 'package:base':

    attach, detach, load, save

R.utils v2.12.3 successfully loaded. See ?R.utils for help.

Attaching package: 'R.utils'

The following object is masked from 'package:utils':

    timestamp

The following objects are masked from 'package:base':

    cat, commandArgs, getOption, isOpen, nullfile, parse, warnings

> 
> message("*** mkdirs() ...")
*** mkdirs() ...
> 
> message("*** mkdirs(..., recursive=TRUE) ...")
*** mkdirs(..., recursive=TRUE) ...
> 
> pathT <- tempdir()
> mprint(pathT)
[1] "D:\\temp\\RtmpQx3asZ"
> stopifnot(isDirectory(pathT))
> 
> path <- file.path(pathT, "foo", "bar")
> mprint(path)
[1] "D:\\temp\\RtmpQx3asZ/foo/bar"
> mkdirs(path)
[1] TRUE
> stopifnot(isDirectory(path))
> 
> paths <- c(dirname(path), path)
> stopifnot(all(isDirectory(paths)))
> 
> path <- dirname(path)
> removeDirectory(path, recursive=TRUE)
> stopifnot(!isDirectory(path))
> 
> message("*** mkdirs(..., recursive=TRUE) ... DONE")
*** mkdirs(..., recursive=TRUE) ... DONE
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # EXCEPTIONS
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> message("*** mkdirs(..., mustWork=TRUE) ...")
*** mkdirs(..., mustWork=TRUE) ...
> 
> path <- file.path(pathT, "foo")
> res <- mkdirs(path)
> stopifnot(isDirectory(path))
> 
> ## Create file with same name
> pathname <- file.path(path, "bar")
> cat("Hello", file=pathname)
> stopifnot(isFile(pathname))
> 
> res <- mkdirs(pathname)
> stopifnot(isFile(pathname), !isDirectory(pathname))
> 
> res <- try(mkdirs(pathname, mustWork=TRUE), silent=TRUE)
> cat(res)
Error in mkdirs.default(pathname, mustWork = TRUE) : 
  Failed to create directory, because a file with the same pathname already exists: D:\temp\RtmpQx3asZ/foo/bar
> stopifnot(inherits(res, "try-error"))
> stopifnot(isFile(pathname), !isDirectory(pathname))
> 
> ## Parent is a file, not a directory
> path2 <- file.path(path, "bar", "yaa")
> res <- try(mkdirs(path2, mustWork=TRUE), silent=TRUE)
> cat(res)
Error in mkdirs.default(path2, mustWork = TRUE) : 
  Could not create directory, because parent ('D:/temp/RtmpQx3asZ/foo/bar') is a file not a directory: D:\temp\RtmpQx3asZ/foo/bar/yaa
> stopifnot(inherits(res, "try-error"))
> stopifnot(!isDirectory(path2))
> 
> removeDirectory(path, recursive=TRUE)
> stopifnot(!isDirectory(path))
> 
> message("*** mkdirs(..., mustWork=TRUE) ... DONE")
*** mkdirs(..., mustWork=TRUE) ... DONE
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # SPECIAL:
> # Windows has a undocumented "feature" that for some set
> # ups on some machines (not all) it will for instance
> # silently drop a trailing period and create the directory
> # without it, e.g. 'G.S.' becomes 'G.S', cf.help("dir.create").
> # See also https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=15996
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> message("*** mkdirs('G.S.') ...")
*** mkdirs('G.S.') ...
> 
> path <- file.path(pathT, "G.S.")
> mprint(path)
[1] "D:\\temp\\RtmpQx3asZ/G.S."
> mkdirs(path)
[1] TRUE
> tryCatch({
+   stopifnot(isDirectory(path))
+   removeDirectory(path)
+ }, error = function(ex) {
+   mprint(ex)
+ })
> 
> message("*** mkdirs('G.S.') ... DONE")
*** mkdirs('G.S.') ... DONE
> 
> message("*** mkdirs() ... DONE")
*** mkdirs() ... DONE
> 
> proc.time()
   user  system elapsed 
   0.42    0.10    2.50