Thanks Jeff. And for future readers head here: https://github.com/eddelbuettel/digest/issues/49
and here: https://github.com/eddelbuettel/digest/issues/13 Sam On Fri, Feb 28, 2020 at 3:40 PM Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > > Read the closed issues in his digest Github repo first... this discussion has > already occurred there. > > On February 28, 2020 3:35:09 PM PST, Sam Albers <tonightstheni...@gmail.com> > wrote: > >Great question Will. If it were my code I would definitely do this. > >However the problem is manifesting itself for my work with Dirk's > >great digest package here: > > > >https://github.com/eddelbuettel/digest/blob/947b77e82b97024a874a808a4644be21fc329275/R/digest.R#L170-L173 > > > >So because file.access is saying the permissions aren't right, I get > >an error message from digest and can't create a hash. Knowing full > >well that this is some weird Windows thing but also knowing I am stuck > >in that environment, I wanted to figure where I was seeing a > >difference between those two functions before I went asked Dirk if > >he'd be interested in a change to that particular bit of code. > > > > > >On Fri, Feb 28, 2020 at 3:28 PM William Dunlap <wdun...@tibco.com> > >wrote: > >> > >> If file.access() says the file is unreadable but file() says it can > >be opened, why don't you > >> just open the file and read it? You can use tryCatch to deal with > >problems opening or > >> reading the file. > >> > >> Bill Dunlap > >> TIBCO Software > >> wdunlap tibco.com > >> > >> > >> On Fri, Feb 28, 2020 at 2:54 PM Sam Albers > ><tonightstheni...@gmail.com> wrote: > >>> > >>> Thanks Jeff. I am probably not explaining myself very well but my > >>> question under what circumstances would > >>> > >>> summary(file(remote_file, "rb"))$`can read` > >>> > >>> be different from: > >>> > >>> file.access(remote_file, 4) > >>> > >>> If my permissions were different across remote and local should that > >>> not be reflected in both of these functions? > >>> > >>> On Fri, Feb 28, 2020 at 2:37 PM Jeff Newmiller > ><jdnew...@dcn.davis.ca.us> wrote: > >>> > > >>> > Dunno. They agree for me. Maybe look closer at all permissions via > >Windows File Manager? > >>> > > >>> > On February 28, 2020 2:06:34 PM PST, Sam Albers > ><tonightstheni...@gmail.com> wrote: > >>> > >Some additional follow-up: > >>> > > > >>> > >> summary(file(remote_file, "rb"))$`can read` > >>> > >[1] "yes" > >>> > > > >>> > >> summary(file(local_file, "rb"))$`can read` > >>> > >[1] "yes" > >>> > > > >>> > >compared to: > >>> > > > >>> > >> file.access(local_file, 4) > >>> > >local.R > >>> > > 0 > >>> > > > >>> > >> file.access(remote_file, 4) > >>> > >remote.R > >>> > > -1 > >>> > > > >>> > >Can anyone think why file.access and file would be contradicting > >each > >>> > >other? > >>> > > > >>> > >Sam > >>> > > > >>> > >On Fri, Feb 28, 2020 at 10:47 AM Sam Albers > >>> > ><tonightstheni...@gmail.com> wrote: > >>> > >> > >>> > >> Hi there, > >>> > >> > >>> > >> Looking for some help in diagnosing or developing a work around > >to a > >>> > >> problem I am having on a Windows machine. I am running R 3.6.2. > >>> > >> > >>> > >> I have two identical files, one stored locally and the other > >stored > >>> > >on > >>> > >> a network drive. > >>> > >> > >>> > >> For access: > >>> > >> > >>> > >> > file.access(local_file, 4) > >>> > >> local.R > >>> > >> 0 > >>> > >> > >>> > >> > file.access(remote_file, 4) > >>> > >> remote.R > >>> > >> -1 > >>> > >> > >>> > >> Also for file.info > >>> > >> > >>> > >> > file.info(local_file)$mode: > >>> > >> [1] "666" > >>> > >> > >>> > >> > file.info(remote_file)$mode: > >>> > >> [1] "666" > >>> > >> > >>> > >> Ok so I am access issues. Maybe they are ephemeral and I can > >change > >>> > >> the permissions: > >>> > >> > >>> > >> > Sys.chmod('remote.R', mode = '666') > >>> > >> > file.access(remote_file, 4) > >>> > >> remote.R > >>> > >> -1 > >>> > >> > >>> > >> Nope. I am thoroughly stumped and maybe can't make it any > >further > >>> > >> because of Windows. > >>> > >> > >>> > >> Downstream I am trying to use digest::digest to create a hash > >but > >>> > >> digest thinks we don't have permission because file.access is > >>> > >failing. > >>> > >> Any thoughts on how I can get file.access to return 0 for the > >>> > >remote.R > >>> > >> file? Any ideas? > >>> > >> > >>> > >> Thanks in advance, > >>> > >> > >>> > >> Sam > >>> > > > >>> > >______________________________________________ > >>> > >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > >>> > >https://stat.ethz.ch/mailman/listinfo/r-help > >>> > >PLEASE do read the posting guide > >>> > >http://www.R-project.org/posting-guide.html > >>> > >and provide commented, minimal, self-contained, reproducible > >code. > >>> > > >>> > -- > >>> > Sent from my phone. Please excuse my brevity. > >>> > >>> ______________________________________________ > >>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > >>> https://stat.ethz.ch/mailman/listinfo/r-help > >>> PLEASE do read the posting guide > >http://www.R-project.org/posting-guide.html > >>> and provide commented, minimal, self-contained, reproducible code. > > -- > Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
