Feat: Improve log level flag description

[dreamjz]

Solve issue #94

Modification Description

• Add package pkg/log
• Change the type of flag log-level to string

Test cases

$ resonate -h 
...
     --log-level string   log level, Options: debug, info, warn, error. (default "info")
...
# Debug
$ resnoate serve --log-level=debug
time=xxx level=INFO msg="starting http server" addr=0.0.0.0:8001
time=xxx level=INFO msg="starting grpc server" addr=0.0.0.0:50051
...
time=xxx level=DEBUG msg=scheduler:add coroutine="Coroutine(metadata=Metadata(tid=tick:1699989540758:notify, tags=map[name:notify-subscriptions]))"
time=xxx level=DEBUG msg=scheduler:add coroutine="Coroutine(metadata=Metadata(tid=tick:1699989540758:timeout, tags=map[name:timeout-promises]))"
...
# Info
$ resonate serve --log-level=info
time=xxx level=INFO msg="starting http server" addr=0.0.0.0:8001
time=xxx level=INFO msg="starting metrics server" addr=:9090
...

$ resonate serve
time=xxx level=INFO msg="starting http server" addr=0.0.0.0:8001
time=xxx level=INFO msg="starting metrics server" addr=:9090
...

# Warn and Error
$ resonate serve --log-level=warn

$ resonate serve --log-level=error

# Uppercase level
$ resonate serve --log-level=DEBUG
...
time=xxx level=DEBUG msg=scheduler:rmv coroutine="Coroutine(metadata=Metadata(tid=tick:1699990746456:notify, tags=map[aio:store name:notify-subscriptions]))"


# Unsupported level
$ resonate serve --log-level=not-support
xxx ERROR failed to parse log level error="unrecognized level: not-support"
Error: unrecognized level: "not-support"
Usage:
  resonate serve [flags]
...

[guergabo]

amazing job! thanks so much for this contribution 🎉

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2c924b7) 67.16% compared to head (37b9605) 67.16%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #113   +/-   ##
=======================================
  Coverage   67.16%   67.16%           
=======================================
  Files          57       57           
  Lines        5944     5944           
=======================================
  Hits         3992     3992           
  Misses       1667     1667           
  Partials      285      285           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[dfarr]

Thank you so much @dreamjz 🎉🎉🎉