Get the timestamp(s) of a target (raw version).
Get the time that a target last ran successfully.
tar_timestamp_raw( name = NULL, format = NULL, tz = NULL, parse = NULL, store = targets::tar_config_get("store") )
name |
Character of length 1, name of the target. |
format |
Deprecated in |
tz |
Deprecated in |
parse |
Deprecated in |
store |
Character of length 1, path to the
|
tar_timestamp_raw()
is like tar_timestamp()
except
it accepts a character string for name
instead of a symbol.
tar_timestamp_raw()
checks the metadata in _targets/meta/meta
,
not the actual data. Time stamps are recorded only for targets that
run commands: just non-branching targets and individual dynamic
branches.
If the target is not recorded in the metadata
or cannot be parsed correctly, then
tar_timestamp_raw()
returns a POSIXct
object at 1970-01-01 UTC
.
Other time:
tar_newer()
,
tar_older()
,
tar_timestamp()
if (identical(Sys.getenv("TAR_EXAMPLES"), "true")) { tar_dir({ # tar_dir() runs code from a temporary directory. tar_script({ list(tar_target(x, 1)) }, ask = FALSE) tar_make() # Get the timestamp. tar_timestamp_raw("x") # We can use the timestamp to cancel the target # if it already ran within the last hour. # Be sure to set `cue = tar_cue(mode = "always")` # if you want the target to always check the timestamp. tar_script({ list( tar_target( x, tar_cancel((Sys.time() - tar_timestamp_raw()) < 3600), cue = tar_cue(mode = "always") ) )}, ask = FALSE) tar_make() }) }
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