On 07/10/2016 6:18 AM, Witold E Wolski wrote:
dir("inst/extdata/")
dir("./inst/extdata/")
dir("inst/extdata")
works all fine, listing the directory content.
but:
unzip(tmp[1],exdir = "inst/extdata/")
Error in unzip(tmp[1], exdir = "inst/extdata/") : 'exdir' does not exist
unzip(tmp[1],exdir = "./inst/extdata/")
Error in unzip(tmp[1], exdir = "inst/extdata/") : 'exdir' does not exist
only
unzip(tmp[1],exdir = "inst/extdata")
does work.
Somehow inconsistent isn't it?
You don't say what platform you're working on, but I'd guess Windows,
because on Windows "inst/extdata/" (or "inst\extdata\") is not a valid
path. The dir() function works around this issue by removing trailing
slashes as appropriate, but unzip() passes the work to an external
utility, and it is stricter about enforcing the rules of the platform.
Duncan Murdoch
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