Terminal coloration about log4rs HOT 13 CLOSED

Progress! The encoder::Write trait has been extended with a set_style method, which can control the foreground and background colors as well as the foreground intensity of text it outputs. The console appender now colors text if attached to a tty/console. I've also added a new "highlight" formatter to the pattern syntax, which sets the color based on the log level. For example, the test crate now has the pattern {d} [{t}] {h({l})} {M}:{m}{n}, which produces output that looks like this when it runs:

I copied the color selections from logback: intense red for error, red for warning, blue for info, and default for everything else.

I'd like to add a pattern formatter or group of them that lets you pick a specific style, but I'm not sure about the syntax right now.

from log4rs.

see #204 , its in progress but seems to be stalled

from log4rs.

Hi! I started using log4s and not seeing any colors in the terminal (I see them e.g. with pretty_env_logger). Do I have to enable it somewhere?

from log4rs.

@Creative-Difficulty you may want to try using the formatter {h} documented in the log4rs::encode::pattern, i.e., here.

As an example, you could use this in your yaml_config:

appenders:
  # An appender named "stdout" that writes to stdout
  stdout:
    kind: console
    target: stdout
    encoder:
      pattern: " {h({l:<5}} {M} > {m}{n}"

# Set the default logging level to "warn" and attach the "stdout" appender to the root
root:
  level: info
  appenders:
    - stdout

This should look somewhat similar to the output produced by the pretty_env_logger crate, although not with its neat alignment.

from log4rs.

Yep, definitely seems reasonable to implement! I will probably not have a ton of time to work on it, but if you were willing to that'd be great.

from log4rs.

I really like this library but I needed colorization, so I went ahead and hacked in super basic, super dirty functionality. No config or anything, just hard-coded colour values for different log levels. I wrote it for my own use until someone smarter than me found the time to implement a proper solution, but I figured I'd post it here in case it helps. If nobody else finds the time to work on this functionality I might look into cleaning up the code and doing it right.

ryantaylor@4ded253

from log4rs.

To be fair, I haven't found much time to work on this. Thanks for working on it !

As a comparison this is the default in log4js:

With your solution, it currently looks like this:

In my opinion, this is already a big improvement !
If you're willing to write a cleaner solution for it, feel free to do so.

from log4rs.

Is anyone still working on this? If not, I am willing to pick it up.

I will need some pointers on how one would configure this in the .toml file

from log4rs.

I don't think anyone's working on it right now. Logback's pattern syntax might be a place to look for configuration syntax inspiration: http://logback.qos.ch/manual/layouts.html#coloring

from log4rs.

I've started working on this.

from log4rs.

I've released v0.4.3 with color support. All that the pattern encoder supports right now is level-based styling. I've opened a new issue to figure out syntax for configuration of specific styles: #17

from log4rs.

What's keeping it stalled currently?

from log4rs.

Is there any progress at all @estk ?

from log4rs.