Format a log record for github actions

GitHub Actions can recognise specially formatted output and make these prominent in the output. The layout_gha() layout will ensure the correct formatting when running in GitHub Actions.

layout_gha(
  level,
  msg,
  namespace = NA_character_,
  .logcall = sys.call(),
  .topcall = sys.call(-1),
  .topenv = parent.frame(),
  .timestamp = Sys.time()
)

Arguments

level

log level, see log_levels() for more details

msg

string message

namespace

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.

.logcall

the logging call being evaluated (useful in formatters and layouts when you want to have access to the raw, unevaluated R expression)

.topcall

R expression from which the logging function was called (useful in formatters and layouts to extract the calling function's name or arguments)

.topenv

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

.timestamp

The time the logging occured. Defaults to the current time but may be overwritten if the logging is delayed from the time it happend

Value

character vector

Note

GitHub Actions only recognise the log levels error, warning, notice, and debug. Because of this, FATAL and ERROR are coerced to error, SUCCESS and INFO are coerced to notice, and DEBUG and TRACE are coerced to debug (WARN maps directly to warning).

See also

Other log_layouts: get_logger_meta_variables(), layout_blank(), layout_glue(), layout_glue_colors(), layout_glue_generator(), layout_json(), layout_json_parser(), layout_logging(), layout_simple()