camtrapR (version 0.97.0)

exiftoolPath: Add a directory to PATH temporarily

Description

Temporarily adds a directory to environmental variable PATH for system calls from within R. This allows Windows users to store Exiftool in any place on their hard drive.

Usage

exiftoolPath(exiftoolDir)

Arguments

exiftoolDir

a character vector representing a directory in the file system.

Value

• invisible logical indicating whether exiftoolDir was added to PATH successfully (in the running R process).

Details

Several functions within this package depend on Rxiftool. Under Windows, if the exiftool.exe is not in a directory path specified in PATH, it cannot be used. This can be solved by adding it for temporary use within the running R process. .

Examples

exiftool_dir <- "C:/PathToExiftool"
exiftoolPath(exiftoolDir = exiftool_dir)

# check if it has been added to PATH
grepl(exiftool_dir,  Sys.getenv("PATH"))