[Rd] corrupt PACKAGES.gz?

[William Dunlap]

My test may not have been entirely right, but it looks like the PACKAGES.gz
file for windows binary packages for R-3.2.x was a quarter of its usual
size on
Nov 5-6, 2015.  It is now fine.  I used  Revolution's daily CRAN snapshots
to
check.
   mran.revolutionanalytics.com/snapshot/YYYY-MM-DD

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Sat, Nov 7, 2015 at 12:24 AM, Uwe Ligges <ligges at statistik.tu-dortmund.de
> wrote:

> Bill,
>
> thanks for reporting, this is currently true for all PACKAGES.gz files my
> autobuilder is creating, will investigate.
>
> Best,
> Uwe
>
>
>
> On 06.11.2015 18:54, William Dunlap wrote:
>
>> Is it just me, or did a corrupt PACKAGES.gz file get installed in the
>> bin/windows/contrib/3.2 directory of CRAN mirrors recently?  gzfile()
>> complains about it and Cygwin's gzip cannot decompress it.  I tried the
>> following
>>
>> repos <- "https://cran.rstudio.com"
>> v <- "3.2"
>> pkgs.gz <- paste(sep="/", repos, "bin/windows/contrib", v, "PACKAGES.gz")
>>
>> tfile <- tempfile(fileext=".gz")
>> download.file(pkgs.gz, dest=tfile)
>> r.gz <- readLines(gzfile(tfile, "r"))
>> tail(system(paste("c:\\cygwin\\bin\\gzip -d - ", shQuote(tfile)),
>> intern=TRUE))
>>
>> and got
>>
>> repos <- "https://cran.rstudio.com"
>>> v <- "3.2"
>>> pkgs.gz <- paste(sep="/", repos, "bin/windows/contrib", v, "PACKAGES.gz")
>>>
>>> tfile <- tempfile(fileext=".gz")
>>> download.file(pkgs.gz, dest=tfile)
>>>
>> trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.2/PACKAGES.gz'
>> Content type 'application/x-gzip' length 188174 bytes (183 KB)
>> downloaded 183 KB
>>
>> r.gz <- readLines(gzfile(tfile, "r"))
>>>
>> Warning message:
>> In readLines(gzfile(tfile, "r")) :
>>    seek on a gzfile connection returned an internal error
>>
>>> tail(system(paste("c:\\cygwin\\bin\\gzip -d - ", shQuote(tfile)),
>>>
>> intern=TRUE))
>> [1] ""                                    "gzip: stdin: unexpected end of
>> file"
>> Warning message:
>> running command 'c:\cygwin\bin\gzip -d -
>>   "C:\Users\wdunlap\AppData\Local\Temp\RtmpG42jk4\file2a201a9e4802.gz"'
>> had
>> status 1
>>
>> R's gz code seems to recover from the bad seek, but Cygwin's gzip cannot.
>>
>> pkgs <- paste(sep="/", repos, "bin/windows/contrib", v, "PACKAGES")
>>> r <- readLines(url(pkgs, "rt"))
>>> all.equal(r, r.gz)
>>>
>> [1] TRUE
>>
>> I get the same results using the Spanish miror, https://ftp.cixug.es/CRAN
>>
>>
>> Bill Dunlap
>> TIBCO Software
>> wdunlap tibco.com
>>
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>>
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>>
>>

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