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  \item{lib.loc}{library trees, as in \code{library}}
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  \item{lib.loc}{library trees, as in \code{library}}
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  \item{keep.source}{logical; should sources be kept when saving from source}
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  \item{keep.source}{logical; should sources be kept when saving from source}
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  \item{compress}{logical; whether to compress entries on the database.}
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  \item{compress}{logical; whether to compress entries on the database.}
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}
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}
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\description{
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\description{
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  Tools for lazy loading of packages from a database.
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  Tools for Lazy Loading of Packages from a Database.
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}
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}
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\details{
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\details{
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  This package provides tools to set up packages for lazy loading from a
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  A tool to set up packages for lazy loading from a database.  For
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  database.  For packages other than base you can use
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  packages other than base you can use \code{makeLazyLoading(package)}
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  \code{makeLazyLoading(package)} to convert them to use lazy loading.
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  For base you need to start R with no packages loaded,  e.g. by setting
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  \code{R_DEFAULT_PACKAGES} to \code{NULL}, and then source
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  \code{makebasedb.R}; this file is provided in the package diractory.
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  This builds a database.  Once the database has been built, use
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  makeLazyLoading("base") to convert base to use lazy loading.
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  to convert them to use lazy loading.
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  A simple \code{make} seems sufficient to undo this for base and base
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  packages other than \code{methods} and perhaps \code{mle}.  For
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  \code{methods} (and presumably others created with \code{--save}) it
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  appears that you need to remove \code{methods/R/methods} and then use
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  \code{make}.  You may also need more radical action for recommended
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  packages.
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}
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}
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\examples{
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\examples{
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  # set up package "base" for lazy loading (must have no packages loaded)
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  # this will by default have already been done
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  \dontrun{
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    source(file.path(.find.package("tools"),"makebasedb.R"))
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    tools:::makeLazyLoading("base")
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  }
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  # set up package "splines" for lazy loading
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  # set up package "splines" for lazy loading -- already done
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  \dontrun{
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  \dontrun{
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    tools:::makeLazyLoading("splines")
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    tools:::makeLazyLoading("splines")
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  }
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  }
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}
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}
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\keyword{utilities}
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\keyword{utilities}