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\description{
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\description{
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  Generating a \file{PACKAGES} file for a repository of source or
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  Generating a \file{PACKAGES} file for a repository of source or
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  Windows binary packages.
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  Windows binary packages.
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}
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}
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\usage{
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\usage{
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write_PACKAGES(dir, fields,
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write_PACKAGES(dir, fields, type = c("source", "winBinary"), verbose = FALSE)
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               type = c("source", "mac.binary", "win.binary"),
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               verbose = FALSE)
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}
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}
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\arguments{
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\arguments{
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  \item{dir}{
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  \item{dir}{
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    Character vector describing the location of the repository
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    Character vector describing the location of the repository
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    (directory including source or binary packages) to generate
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    (directory including source or binary packages) to generate
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    \dQuote{Imports} and \dQuote{Contains}.
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    \dQuote{Imports} and \dQuote{Contains}.
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  }
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  }
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  \item{type}{
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  \item{type}{
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    Type of packages: currently source \code{.tar.gz} archives
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    Type of packages: currently source \code{.tar.gz} archives
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    and Windows binary \code{.zip} packages are supported.  Defaults to
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    and Windows binary \code{.zip} packages are supported.  Defaults to
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    \code{"winBinary"} on Windows and to \code{"source"} otherwise.
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    \code{"win.binary"} on Windows and to \code{"source"} otherwise.
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  }
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  }
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  \item{verbose}{logical. Should packages be listed as they are processed?}
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  \item{verbose}{logical. Should packages be listed as they are processed?}
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}
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}
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\details{
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\details{
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  \code{type = "winBinary"} uses \code{\link{unz}} connections to read all
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  \code{type = "win.binary"} uses \code{\link{unz}} connections to read all
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  \file{DESCRIPTION} files contained in the (zipped) binary packages for
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  \file{DESCRIPTION} files contained in the (zipped) binary packages for
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  Windows in the given directory \code{dir}, and builds a
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  Windows in the given directory \code{dir}, and builds a
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  \file{PACKAGES} file from these information.
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  \file{PACKAGES} file from these information.
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}
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}
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\value{
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\value{
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  \file{DESCRIPTION} files and writing the \file{PACKAGES} file.
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  \file{DESCRIPTION} files and writing the \file{PACKAGES} file.
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}
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}
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\examples{
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\examples{
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\dontrun{
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\dontrun{
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write_PACKAGES("c:/myFolder/myRepository")  # on Windows
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write_PACKAGES("c:/myFolder/myRepository")  # on Windows
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write_PACKAGES("/pub/RWin/bin/windows/2.1", type="winBinary")  # on Linux
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write_PACKAGES("/pub/RWin/bin/windows/contrib/2.1",
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               type="win.binary")  # on Linux
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}}
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}}
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\keyword{file}
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\keyword{file}
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\keyword{utilities}
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\keyword{utilities}
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