Save data to comma separated value files with backups

Save comma separated value files, if file exists, backup original file.

Usage

safe_write_csv(x, file, ..., quiet = FALSE)

Arguments

x, file, ...

pass to write.csv

quiet

whether to suppress overwrite message

Value

Normalized path of file

Examples

f <- tempfile()
x <- data.frame(a = 1:10)

# File not exists, same as write file, returns normalized `f`
safe_write_csv(x, f)
#> [1] "/private/var/folders/y6/nj790rtn62lfktb1sh__79hc0000gn/T/RtmpH77NPa/file1506221b4f01"

# Check whether file exists
file.exists(f)
#> [1] TRUE

# write again, and the old file will be copied
safe_write_csv(x, f)
#> [1] "/private/var/folders/y6/nj790rtn62lfktb1sh__79hc0000gn/T/RtmpH77NPa/file1506221b4f01"