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50 lines
2.2 KiB
Rust
50 lines
2.2 KiB
Rust
//! Common utilities for integration examples
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pub mod logger {
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use fern::colors::{Color, ColoredLevelConfig};
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use log::debug;
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pub fn set_up_logging(bin_name: &'static str) {
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// configure colors for the whole line
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let colors_line = ColoredLevelConfig::new()
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.error(Color::Red)
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.warn(Color::Yellow)
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// we actually don't need to specify the color for debug and info, they are white by default
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.info(Color::White)
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.debug(Color::White)
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// depending on the terminals color scheme, this is the same as the background color
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.trace(Color::BrightBlack);
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// configure colors for the name of the level.
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// since almost all of them are the same as the color for the whole line, we
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// just clone `colors_line` and overwrite our changes
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let colors_level = colors_line.clone().info(Color::Green);
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// here we set up our fern Dispatch
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fern::Dispatch::new()
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.format(move |out, message, record| {
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out.finish(format_args!(
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"{color_line}[{level}{color_line}] {message}\x1B[0m",
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color_line = format_args!(
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"\x1B[{}m",
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colors_line.get_color(&record.level()).to_fg_str()
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),
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level = colors_level.color(record.level()),
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message = message,
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));
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})
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// set the default log level. to filter out verbose log messages from dependencies, set
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// this to Warn and overwrite the log level for your crate.
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.level(log::LevelFilter::Warn)
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// change log levels for individual modules. Note: This looks for the record's target
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// field which defaults to the module path but can be overwritten with the `target`
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// parameter:
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// `info!(target="special_target", "This log message is about special_target");`
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.level_for(bin_name, log::LevelFilter::Info)
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// .level_for("pretty_colored", log::LevelFilter::Trace)
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// output to stdout
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.chain(std::io::stdout())
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.apply()
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.unwrap();
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}
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}
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