Lib.rs

Cargo Features

[dependencies]
log4rs = { version = "1.4.0", default-features = false, features = ["onstartup_trigger", "config_parsing", "yaml_format", "json_format", "toml_format", "console_appender", "file_appender", "rolling_file_appender", "compound_policy", "delete_roller", "fixed_window_roller", "size_trigger", "time_trigger", "json_encoder", "pattern_encoder", "ansi_writer", "console_writer", "simple_writer", "threshold_filter", "background_rotation", "log_kv", "all_components", "gzip", "zstd"] }

default = all_components, config_parsing, yaml_format

These default features are set whenever log4rs is added without default-features = false somewhere in the dependency tree.

onstartup_trigger all_components

Affects trigger::onstartup…

config_parsing default = humantime, serde, serde-value, typemap-ors

Enables serde of log

Affects console::ConsoleAppenderConfig, console::ConsoleAppenderDeserializer, file::FileAppenderConfig, file::FileAppenderDeserializer, append::AppenderConfig, rolling_file::RollingFileAppenderConfig, rolling_file::RollingFileAppenderDeserializer, compound::CompoundPolicyConfig, compound::CompoundPolicyDeserializer, delete::DeleteRollerConfig, delete::DeleteRollerDeserializer, fixed_window::FixedWindowRollerConfig, fixed_window::FixedWindowRollerDeserializer, onstartup::OnStartUpTriggerConfig, onstartup::OnStartUpTriggerDeserializer, size::SizeTriggerConfig, size::SizeTriggerDeserializer, time::TimeTriggerConfig, config::create_raw_config, config::init_raw_config…

yaml_format default = serde_yaml

json_format = serde_json

toml_format = toml

console_appender all_components = console_writer, pattern_encoder, simple_writer

Affects append::console…

file_appender all_components = parking_lot, pattern_encoder, simple_writer

Affects append::file…

rolling_file_appender all_components = parking_lot, pattern_encoder, simple_writer

Affects append::rolling_file…

compound_policy all_components

Affects policy::compound…

delete_roller all_components

Affects roll::delete…

fixed_window_roller all_components

Affects roll::fixed_window…

size_trigger all_components

Affects trigger::size…

time_trigger all_components = rand

Affects trigger::time…

json_encoder all_components = chrono, log-mdc, serde, serde_json, thread-id

Enables serde of log

Affects encode::json…

pattern_encoder all_components console_appender? file_appender? rolling_file_appender? = chrono, log-mdc, thread-id

Affects encode::pattern…

ansi_writer console_writer?

Affects writer::ansi…

console_writer console_appender? = ansi_writer, libc, winapi

Affects writer::console…

simple_writer console_appender? file_appender? rolling_file_appender?

Affects writer::simple…

threshold_filter all_components

Affects filter::threshold…

background_rotation

log_kv

Enables kv of log

all_components default = compound_policy, console_appender, delete_roller, file_appender, fixed_window_roller, json_encoder, onstartup_trigger, pattern_encoder, rolling_file_appender, size_trigger, threshold_filter, time_trigger

gzip = flate2

zstd

Enables zstd

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

chrono json_encoder? pattern_encoder?

flate2 gzip?

humantime config_parsing

log-mdc json_encoder? pattern_encoder?

serde config_parsing json_encoder?

serde-value config_parsing

thread-id json_encoder? pattern_encoder?

typemap-ors config_parsing

serde_json json_encoder? json_format?

serde_yaml yaml_format

toml toml_format?

Enables toml <0.8.10

parking_lot file_appender? rolling_file_appender?

rand time_trigger?

libc not win console_writer?

winapi win console_writer?