feat: Add logger

[alcb1310]

This PR will close issue #140

Adds structured logger to the application

Usage

Define your logs by priority: Debug, Info, Warn and Error by adding the following to the code

import log/slog

slog.Debug("Debug message")
slog.Info("Information message")
slog.Warn("Warning message")
slog.Error("Error message")

To set the debug level when running:

ENV=debug sesh

Just need to change the debug text for info or error. The default log level is warn.

[alcb1310]

Made some decisions to implement this, it will be good to have your input about those:

• Log file location: I decided to use the following ~/.config/sesh/<date>.log
• Log file name: I decided to use the date in the format YYYY-mm-dd as the log file name
• Default log level: If no log level is defined, I set being the warn level as the default one
• When using the default log level, I decided not to show the user the log information and only save the log to the specified file

[joshmedeski]

I'll review this and plan on merging it later this week, thanks!

[joshmedeski]

Could you please add one or two examples (maybe a debug and an error) somewhere in the codebase that shows how this gets used?

I just want to make sure I understand how this gets used and how it impacts testing, thanks.

[alcb1310]

Could you please add one or two examples (maybe a debug and an error) somewhere in the codebase that shows how this gets used?

I just want to make sure I understand how this gets used and how it impacts testing, thanks.

I've added a couple of examples on how I would log the the error and debug inside the App() function

[joshmedeski]

I'm on macOS and I was unable to generate a log file in the tmp directory. I could only see the logs in the terminal.

I tried all the logs levels, am I missing something?

[alcb1310]

The os.TempDir() function that is used to get the temp directory returns whatever is in your $TMPDIR environment variable and if empty it defaults to /tmp try :

cd $TMPDIR/sesh
tail <date>.log

You will find the log file there