| Title: | Easily Build Command Line Applications |
| Version: | 0.2.0 |
| Description: | Run simple 'R' scripts as command line applications, with automatic robust and convenient support for command line arguments. This package provides 'Rapp', an alternative 'R' front-end similar to 'Rscript', that enables this. |
| License: | MIT + file LICENSE |
| URL: | https://github.com/r-lib/Rapp |
| BugReports: | https://github.com/r-lib/Rapp/issues |
| Encoding: | UTF-8 |
| RoxygenNote: | 7.3.2 |
| Suggests: | testthat (≥ 3.0.0) |
| Config/testthat/edition: | 3 |
| Imports: | yaml |
| NeedsCompilation: | no |
| Packaged: | 2024-07-15 16:53:35 UTC; tomasz |
| Author: | Tomasz Kalinowski [aut, cre] |
| Maintainer: | Tomasz Kalinowski <tomasz@posit.co> |
| Repository: | CRAN |
| Date/Publication: | 2024-07-15 17:10:02 UTC |
Run an R app.
Description
Run an R app.
Usage
run(app, args = commandArgs(TRUE))
Arguments
app |
A filepath to an Rapp. |
args |
character vector of command line args. |
Details
See the package README for full details. https://github.com/r-lib/Rapp
Value
NULL, invisibly. Called for its side effect.
Examples
# For the example, place 'Rapp', the package examples, and 'R' on the PATH
old_path <- Sys.getenv("PATH")
Sys.setenv(PATH = paste(system.file("examples", package = "Rapp"),
system.file("exec", package = "Rapp"),
R.home("bin"),
old_path,
sep = .Platform$path.sep))
# Here is an example app:
# flip-coin.R
writeLines(readLines(
system.file("examples/flip-coin.R", package = "Rapp")))
if(.Platform$OS.type != "windows") {
# on macOS and Linux, you can call the app directly
system("flip-coin.R")
system("flip-coin.R --n 3")
} else {
# On windows, there is no support for shebang '#!' style executables
# but you can invoke 'Rapp' directly
system("Rapp flip-coin.R")
system("Rapp flip-coin.R --n 3")
}
# restore PATH
Sys.setenv(PATH = old_path)