Feature request: Add columns to dump_log object before write

[aecorn]

Use-case: Add username-column to log-rows to backtrack who made the changes.

Non-working solution, before dump_log():
transform( user = Sys.getenv("USERNAME")) %>>%
Results in all user-add-edits being logged, instead of username being added to existing rows in logs.

Better, but verbose solution:
After dump, read file back in, add column, write out again.

log_cellwise <- read.csv("log_cellwise.csv")
log_cellwise <- transform(log_cellwise, user = Sys.getenv("USERNAME"))
write.csv(log_cellwise, "log_cellwise.csv")

Are there some "Arguments passed to the dump method of the logger." that can be passed to achieve adding a column before the dump?
I would love if something like this was possible:
dump_log(data, "cellwise", file ="log.csv", cols = single_value/expression/transform() )
But I can see how it would open a can of worms potentially. Maybe there is some smart set of parameters / methods I am unaware of that could fit?

[markvanderloo]

Thank you for the feedback. This seems a useful feature in a multi-user environment. I will take a look if something like a user id, and/or machine name can be added somehow.