[Bioc-devel] Windows Development Build Error Message for COHCAP

Charles Warden cw@rden @end|ng |rom coh@org
Thu Apr 23 21:42:48 CEST 2020

Hi H,

Thank you for the additional information.

I have pushed the git updates using tempdir() instead of getwd().  It sounds like that will probably fix the problem, and I will check tomorrow.

Best Wishes,

-----Original Message-----
From: Hervé Pagès <hpages using fredhutch.org> 
Sent: Thursday, April 23, 2020 12:23 PM
To: Charles Warden <cwarden using coh.org>; Shepherd, Lori <Lori.Shepherd using RoswellPark.org>; 'bioc-devel using r-project.org' <bioc-devel using r-project.org>
Subject: Re: [Bioc-devel] Windows Development Build Error Message for COHCAP

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Hi Charles,

On 4/23/20 10:19, Charles Warden wrote:

> My guess was that creating the temporary file in the working directory instead of another folder might help.

FWIW here are 2 important reasons for writing temporary stuff to
tempdir() instead of the current working directory:

1. tempdir() is the only place that is guaranteed to be writable on every system. Yes the user home is very likely to be writable too but there is actually no guarantee and some systems have unconventional setups where it's not.

2. Whatever you put in tempdir() will automatically be removed at the end of the R session. Even though there are ways to achieve this with the temporary stuff you write in the user home, it's not automatic and hard to get right.


Hervé Pagès

Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024

E-mail: hpages using fredhutch.org
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