[jira] [Assigned] (ARROW-6622) [C++][R] SubTreeFileSystem path error on Windows

["Neal Richardson (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-6622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson reassigned ARROW-6622:
--------------------------------------

    Assignee: Neal Richardson

> [C++][R] SubTreeFileSystem path error on Windows
> ------------------------------------------------
>
>                 Key: ARROW-6622
>                 URL: https://issues.apache.org/jira/browse/ARROW-6622
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++, R
>            Reporter: Neal Richardson
>            Assignee: Neal Richardson
>            Priority: Major
>              Labels: filesystem, pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> On ARROW-6438, we got this error on Windows testing out the subtree:
> {code}
> > test_check("arrow")
>   -- 1. Error: SubTreeFilesystem (@test-filesystem.R#86)  ------------------------
>   Unknown error: Underlying filesystem returned path 'C:/Users/appveyor/AppData/Local/Temp/1/RtmpqWFbxi/working_dir/Rtmp2Dfa6d/file2904934312d/DESCRIPTION', which is not a subpath of 'C:/Users/appveyor/AppData/Local/Temp/1\RtmpqWFbxi/working_dir\Rtmp2Dfa6d\file2904934312d/'
>   1: st_fs$GetTargetStats(c("DESCRIPTION", "test", "nope", "DESC.txt")) at testthat/test-filesystem.R:86
>   2: map(fs___FileSystem__GetTargetStats_Paths(self, x), shared_ptr, class = FileStats)
>   3: fs___FileSystem__GetTargetStats_Paths(self, x)
>   
>   == testthat results  ===========================================================
>   [ OK: 992 | SKIPPED: 2 | WARNINGS: 0 | FAILED: 1 ]
> {code}
> Notice the mixture of forward slashes and backslashes in the paths so that they don't match up. 
> I'm not sure which layer is doing the wrong thing.



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