log #

Description:

log provides your application logging services. You can log to file or to the console and use different logging levels, so that you are not overwhelmed by the logs.

fn level_from_tag(tag string) ?Level

level_from_tag returns the log level from the given string if matches.

interface Logger {
mut:
	fatal(s string)
	error(s string)
	warn(s string)
	info(s string)
	debug(s string)
}

Logger is an interface that describes a generic Logger

enum Level {
	disabled = 0
	fatal
	error
	warn
	info
	debug
}

Level defines possible log levels used by Log

enum LogTarget {
	console
	file
	both
}

LogTarget defines possible log targets

struct Log {
mut:
	level         Level
	output_label  string
	ofile         os.File
	output_target LogTarget // output to console (stdout/stderr) or file or both.
pub mut:
	output_file_name string // log output to this file
}

Log represents a logging object

fn (mut l Log) get_level() Level

get_level gets the internal logging level.

fn (mut l Log) set_level(level Level)

set_level sets the internal logging to level.

fn (mut l Log) set_output_level(level Level)

set_output_level sets the internal logging output to level.

fn (mut l Log) set_full_logpath(full_log_path string)

set_full_logpath sets the output label and output path from full_log_path.

fn (mut l Log) set_output_label(label string)

set_output_label sets the label for the output.

fn (mut l Log) set_output_path(output_file_path string)

set_output_path sets the file to which output is logged to.

fn (mut l Log) log_to_console_too()

log_to_console_too turns on logging to the console too, in addition to logging to a file.
You have to call it after calling .set_output_path(output_file_path).

fn (mut l Log) flush()

flush writes the log file content to disk.

fn (mut l Log) close()

close closes the log file.

fn (mut l Log) send_output(s &string, level Level)

send_output writes log line s with level to either the log file or the console according to the value of the .output_target field.

fn (mut l Log) fatal(s string)

fatal logs line s via send_output if Log.level is greater than or equal to the Level.fatal category.
Note that this method performs a panic at the end, even if log level is not enabled.

fn (mut l Log) error(s string)

error logs line s via send_output if Log.level is greater than or equal to the Level.error category.

fn (mut l Log) warn(s string)

warn logs line s via send_output if Log.level is greater than or equal to the Level.warn category.

fn (mut l Log) info(s string)

info logs line s via send_output if Log.level is greater than or equal to the Level.info category.

fn (mut l Log) debug(s string)

debug logs line s via send_output if Log.level is greater than or equal to the Level.debug category.