Log a message with given log level
log_level(level, ..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_trace(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_debug(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_info(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_success(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_warn(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_error(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log_fatal(..., namespace = NA_character_,
.logcall = sys.call(), .topcall = sys.call(-1), .topenv = parent.frame())
log level, see log_levels
for more details
R objects that can be converted to a character vector via the active message formatter function
string referring to the logger
environment / config to be used to override the target of the message record to be used instead of the default namespace, which is defined by the R package name from which the logger was called, and falls back to a common, global namespace.
the logging call being evaluated (useful in formatters and layouts when you want to have access to the raw, unevaluated R expression)
R expression from which the logging function was called (useful in formatters and layouts to extract the calling function's name or arguments)
original frame of the .topcall
calling function where the formatter function will be evaluated and that is used to look up the namespace
as well via logger:::top_env_name
Invisible list
of logger
objects. See logger
for more details on the format/
if (FALSE) {
log_level(INFO, 'hi there')
log_info('hi there')
## output omitted
log_debug('hi there')
## lower threshold and retry
log_threshold(TRACE)
log_debug('hi there')
## multiple lines
log_info('ok {1:3} + {1:3} = {2*(1:3)}')
log_layout(layout_json())
log_info('ok {1:3} + {1:3} = {2*(1:3)}')
## note for the JSON output, glue is not automatically applied
log_info(glue::glue('ok {1:3} + {1:3} = {2*(1:3)}'))
}