README.md

In locatexec: Detection and Localization of Executable Files

locatexec

The package aims to allow the localization of external programs such as “python”, “Google Chrome”, “node.js” and “LibreOffice” in order to be able to easily call them from R.

This makes it easier to call these programs from R from various operating systems.

library(locatexec)

if(exec_available("node")){
  message(exec_version("node"))
  message(node_exec())
}
#> 12.16.0
#> C:/Program Files/nodejs/node.exe

| exec | exec_fun | available | version | path | | :---------- | :------------------- | :-------- | :----------- | :-------------------------------------------------------------------- | | node | node_exec() | TRUE | 12.16.0 | C:/Program Files/nodejs/node.exe | | chrome | chrome_exec() | TRUE | 89.0.4389.82 | C:/Program Files (x86)/Google/Chrome/Application/chrome.exe | | python | python_exec() | TRUE | 3.9.1 | C:/Users/dgohe/AppData/Local/Programs/Python/Python39/python.exe | | libreoffice | libreoffice_exec() | TRUE | 7.1.0.3 | C:/Program Files/LibreOffice/program/soffice.com | | excel | excel_exec() | TRUE | 16 | C:/Program Files/Microsoft Office/root/Office16/EXCEL.exe | | powerpoint | powerpoint_exec() | TRUE | 16 | C:/Program Files/Microsoft Office/root/Office16/POWERPNT.exe | | pip | pip_exec() | TRUE | 20.2.3 | C:/Users/dgohe/AppData/Local/Programs/Python/Python39/Scripts/pip.exe | | firefox | firefox_exec() | TRUE | 86.0.1 | C:/Program Files/Mozilla Firefox/firefox.exe | | npm | npm_exec() | TRUE | 6.13.4 | C:/Program Files/nodejs/npm.cmd | | word | word_exec() | TRUE | 16 | C:/Program Files/Microsoft Office/root/Office16/WINWORD.exe |

Motivations

This was motivated by the need for tools similar to rmarkdown::pandoc_available() and rmarkdown::pandoc_exec() but allowing to locate external programs other than pandoc.

I need to use these programs from R without having heavy dependencies. These functions will mainly be used to automate some visual tests or to improve the documentation of other packages.

Installation

You can install the CRAN version with:

install.packages("locatexec")

Related work

• Packages pagedown is providing find_chrome() for finding “Google Chrome”.

• Packages findpython is providing find_python_cmd() for finding "python".

• If you want to go deeper with ‘R’ and ‘node.js’, I recommend package packer.

• If you want to go deeper with ‘R’ and ‘Python’, I recommend package reticulate.

locatexec documentation built on May 19, 2021, 9:14 a.m.