Get File Info

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] NA
#> 
#> $type
#> [1] NA
#> 
#> $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"