exec_available {locatexec}

Check executable availability and version

Description

determine whether an executable is currently available on the user machine (optionally checking for a specific or greater version).

Usage

exec_available(exec, version = NULL, error = FALSE)

Arguments

exec

executable identifier, a single character. Use one of these values:

• chrome: 'Google Chrome' executable

• firefox: 'Mozilla Firefox' executable

• libreoffice: 'LibreOffice' executable

• node: 'node.js' executable

• npm: 'npm' executable

• python: 'python' executable

• pip: 'pip' executable

• excel: 'Microsoft Excel' executable

• word: 'Microsoft Word' executable

• powerpoint: 'Microsoft PowerPoint' executable

version

required version of executable

error

if TRUE, executes an error action if executable with the required version is not found.

Value

a logical indicating whether the executable is available.

Examples

if (exec_available("python")) {
  cat("python", as.character(exec_version("python")), "is available!\n")
}
if(exec_available("python", "3.9")) {
  cat("required version of python is available!\n")
}
if (exec_available("pip")) {
  cat("pip", as.character(exec_version("pip")), "is available!\n")
}
if (exec_available("pip", "19.3")) {
  cat("pip", as.character(exec_version("pip")), "is available!\n")
}
if (exec_available("chrome")) {
  cat("chrome", as.character(exec_version("chrome")), "is available!\n")
}
if (exec_available("firefox")) {
  cat("firefox", as.character(exec_version("firefox")), "is available!\n")
}
if (exec_available("node")) {
  cat("node.js", as.character(exec_version("node")), "is available!\n")
}
if (exec_available("npm")) {
  cat("npm", as.character(exec_version("npm")), "is available!\n")
}
if (exec_available("npm", version = "10.13.0")) {
  cat("npm", as.character(exec_version("npm")), "is available!\n")
}
if (exec_available("excel")) {
  cat("excel", as.character(exec_version("excel")), "is available!\n")
}
if (exec_available("word")) {
  cat("word", as.character(exec_version("word")), "is available!\n")
}
if (exec_available("powerpoint")) {
  cat("powerpoint", as.character(exec_version("powerpoint")), "is available!\n")
}