A Lightweight, Modern and Flexible Logging Utility
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Documentation for package ‘logger’ version 0.3.0
- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Code demos. Use demo() to run them.
- Package NEWS.
Help Pages
| %except% | Try to evaluate an expressions and evaluate another expression on exception |
| appender_async | Delays executing the actual appender function to the future in a background process to avoid blocking the main R session |
| appender_console | Append log record to stderr |
| appender_file | Append log messages to a file |
| appender_kinesis | Send log messages to a Amazon Kinesis stream |
| appender_pushbullet | Send log messages to Pushbullet |
| appender_slack | Send log messages to a Slack channel |
| appender_stderr | Append log record to stderr |
| appender_stdout | Append log record to stdout |
| appender_syslog | Send log messages to the POSIX system log |
| appender_syslognet | Send log messages to a network syslog server |
| appender_tee | Append log messages to a file and stdout as well |
| appender_telegram | Send log messages to a Telegram chat |
| appender_void | Dummy appender not delivering the log record to anywhere |
| as.loglevel | Convert R object into a logger log-level |
| colorize_by_log_level | Colorize string by the related log level |
| DEBUG | Log levels |
| delete_logger_index | Delete an index from a logger namespace |
| deparse_to_one_line | Deparse and join all lines into a single line |
| ERROR | Log levels |
| fail_on_missing_package | Check if R package can be loaded and fails loudly otherwise |
| FATAL | Log levels |
| formatter_glue | Apply 'glue' to convert R objects into a character vector |
| formatter_glue_or_sprintf | Apply 'glue' and 'sprintf' |
| formatter_glue_safe | Apply 'glue_safe' to convert R objects into a character vector |
| formatter_json | Transforms all passed R objects into a JSON list |
| formatter_logging | Mimic the default formatter used in the 'logging' package |
| formatter_pander | Formats R objects with pander |
| formatter_paste | Concatenate R objects into a character vector via 'paste' |
| formatter_sprintf | Apply 'sprintf' to convert R objects into a character vector |
| get_logger_meta_variables | Collect useful information about the logging environment to be used in log messages |
| grayscale_by_log_level | Render a string with light/dark gray based on the related log level |
| INFO | Log levels |
| layout_blank | Format a log record by including the raw message without anything added or modified |
| layout_glue | Format a log message with 'glue' |
| layout_glue_colors | Format a log message with 'glue' and ANSI escape codes to add colors |
| layout_glue_generator | Generate log layout function using common variables available via glue syntax |
| layout_json | Generate log layout function rendering JSON |
| layout_json_parser | Generate log layout function rendering JSON after merging meta fields with parsed list from JSON message |
| layout_logging | Format a log record as the logging package does by default |
| layout_simple | Format a log record by concatenating the log level, timestamp and message |
| layout_syslognet | Format a log record for syslognet |
| logger | Generate logging utility |
| log_appender | Get or set log record appender function |
| log_debug | Log a message with given log level |
| log_error | Log a message with given log level |
| log_errors | Injects a logger call to standard errors |
| log_eval | Evaluate an expression and log results |
| log_failure | Logs the error message to console before failing |
| log_fatal | Log a message with given log level |
| log_formatter | Get or set log message formatter |
| log_info | Log a message with given log level |
| log_layout | Get or set log record layout |
| log_level | Log a message with given log level |
| log_levels | Log levels |
| log_messages | Injects a logger call to standard messages |
| log_namespaces | Looks up logger namespaces |
| log_separator | Logs a long line to stand out from the console |
| log_shiny_input_changes | Auto logging input changes in Shiny app |
| log_success | Log a message with given log level |
| log_threshold | Get or set log level threshold |
| log_tictoc | Tic-toc logging |
| log_trace | Log a message with given log level |
| log_warn | Log a message with given log level |
| log_warnings | Injects a logger call to standard warnings |
| log_with_separator | Logs a message in a very visible way |
| OFF | Log levels |
| skip_formatter | Skip the formatter function |
| SUCCESS | Log levels |
| TRACE | Log levels |
| WARN | Log levels |
| with_log_threshold | Evaluate R expression with a temporarily updated log level threshold |