File: compileRsp.R

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r-cran-r.rsp 0.46.0%2Bds-1
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###########################################################################/**
# @RdocDefault compileRsp
#
# @title "Compiles an RSP file"
#
# \description{
#  @get "title".
# }
#
# @synopsis
#
# \arguments{
#   \item{filename, path}{The filename and (optional) path of the
#      RSP document to be compiled.}
#   \item{...}{Additional arguments passed to @see "R.rsp::rfile".}
#   \item{outPath}{The output and working directory.}
#   \item{verbose}{See @see "R.utils::Verbose".}
# }
#
# \value{
#   Returns the pathname of the generated document.
# }
#
# @author
#
# @keyword file
# @keyword IO
# @keyword internal
#*/###########################################################################
setMethodS3("compileRsp", "default", function(filename, path=NULL, ..., outPath=".", envir=parent.frame(), verbose=FALSE) {

  # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  # Validate arguments
  # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  # Arguments 'filename' & 'path':
  pathname <- if (is.null(path)) filename else file.path(path, filename)
  if (!isUrl(pathname)) {
    pathname <- Arguments$getReadablePathname(pathname)
  }

  # Arguments 'outPath':
  outPath <- Arguments$getWritablePath(outPath)
  if (is.null(outPath)) outPath <- "."

  # Argument 'verbose':
  verbose <- Arguments$getVerbose(verbose)
  if (verbose) {
    pushState(verbose)
    on.exit(popState(verbose))
  }

  verbose && enter(verbose, "Compiling RSP document")

  # A local file?
  if (!isUrl(pathname)) {
    pathname <- getAbsolutePath(pathname)
    verbose && cat(verbose, "RSP pathname (absolute): ", pathname)
    verbose && printf(verbose, "Input file size: %g bytes\n", file.info(pathname)$size)
  }

  verbose && cat(verbose, "Output and working directory: ", outPath)

  opwd <- "."
  on.exit(setwd(opwd), add=TRUE)
  if (!is.null(outPath)) {
    opwd <- setwd(outPath)
  }

  pathname2 <- rfile(pathname, ..., envir=envir)
  setwd(opwd); opwd <- "."

  res <- pathname2
  verbose && print(verbose, res)

  verbose && exit(verbose)

  res
}) # compileRsp()