Get File Info — get

A utility function to retrieve the file information of a filename, path, or URL.

get_info(file)

get_ext(file)

Arguments

file: A character string containing a filename, file path, or URL.

Value

For get_info(), a list is return with the following slots

input file extension or information used to identify the possible file format
format file format, see format argument of import()
type "import" (supported by default); "suggest" (supported by suggested packages, see install_formats()); "enhance" and "known " are not directly supported; NA is unsupported
format_name name of the format
import_function What function is used to import this file
export_function What function is used to export this file
file file

For get_ext(), just input (usually file extension) is returned; retained for backward compatibility.

Examples

get_info("starwars.xlsx")
#> $input
#> [1] "xlsx"
#> 
#> $format
#> [1] "xlsx"
#> 
#> $type
#> [1] "import"
#> 
#> $format_name
#> [1] "Excel"
#> 
#> $import_function
#> [1] "readxl::read_xlsx"
#> 
#> $export_function
#> [1] "writexl::write_xlsx"
#> 
#> $file
#> [1] "starwars.xlsx"
#> 
get_info("starwars.ods")
#> $input
#> [1] "ods"
#> 
#> $format
#> [1] "ods"
#> 
#> $type
#> [1] "suggest"
#> 
#> $format_name
#> [1] "OpenDocument Spreadsheet"
#> 
#> $import_function
#> [1] "readODS::read_ods"
#> 
#> $export_function
#> [1] "readODS::write_ods"
#> 
#> $file
#> [1] "starwars.ods"
#> 
get_info("https://github.com/ropensci/readODS/raw/v2.1/starwars.ods")
#> $input
#> [1] "ods"
#> 
#> $format
#> [1] "ods"
#> 
#> $type
#> [1] "suggest"
#> 
#> $format_name
#> [1] "OpenDocument Spreadsheet"
#> 
#> $import_function
#> [1] "readODS::read_ods"
#> 
#> $export_function
#> [1] "readODS::write_ods"
#> 
#> $file
#> [1] "https://github.com/ropensci/readODS/raw/v2.1/starwars.ods"
#> 
get_info("~/duran_duran_rio.mp3")
#> $input
#> [1] "mp3"
#> 
#> $format
#> [1] "mp3"
#> 
#> $type
#> [1] "unknown"
#> 
#> $format_name
#> [1] NA
#> 
#> $import_function
#> [1] NA
#> 
#> $export_function
#> [1] NA
#> 
#> $file
#> [1] "~/duran_duran_rio.mp3"
#> 
get_ext("clipboard") ## "clipboard"
#> [1] "clipboard"
get_ext("https://github.com/ropensci/readODS/raw/v2.1/starwars.ods")
#> [1] "ods"