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The package helps locate external programs such as “python”, “Google Chrome”, “node.js” and “LibreOffice” so that they can be called easily from R.
This makes it easier to call these programs from R across various operating systems.
library(locatexec)
if(exec_available("node")){
message(exec_version("node"))
message(node_exec())
}
#> 26.0.0
#> /opt/homebrew/bin/node| exec | exec_fun | available | version | path |
|---|---|---|---|---|
| node | node_exec() |
TRUE | 26.0.0 | /opt/homebrew/bin/node |
| chrome | chrome_exec() |
TRUE | 148.0.7778.179 | /Applications/Google Chrome.app/Contents/MacOS/Google Chrome |
| python | python_exec() |
TRUE | 3.9.6 | /usr/bin/python3 |
| libreoffice | libreoffice_exec() |
TRUE | 26.2.3.2 | /opt/homebrew/bin/soffice |
| excel | excel_exec() |
TRUE | 16.109.1 | /Applications/Microsoft Excel.app/Contents/MacOS/Microsoft Excel |
| powerpoint | powerpoint_exec() |
TRUE | 16.109.1 | /Applications/Microsoft PowerPoint.app/Contents/MacOS/Microsoft PowerPoint |
| pip | pip_exec() |
TRUE | 21.2.4 | /usr/bin/pip3 |
| firefox | firefox_exec() |
TRUE | 151.0.1 | /Applications/Firefox.app/Contents/MacOS/firefox |
| npm | npm_exec() |
TRUE | 11.12.1 | /opt/homebrew/bin/npm |
| word | word_exec() |
TRUE | 16.109.1 | /Applications/Microsoft Word.app/Contents/MacOS/Microsoft Word |
| air | air_exec() |
TRUE | 0.8.0 | /Users/username/.local/bin/air |
| pandoc | pandoc_exec() |
TRUE | 3.9.0.2 | /opt/homebrew/bin/pandoc |
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 needed to call these programs from R without pulling in heavy dependencies.
You can install the CRAN version with:
install.packages("locatexec")Package pagedown provides find_chrome() for finding
“Google Chrome”.
Package findpython provides 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.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.