Refactor to package

[heewa]

This should have the command behave the same, except you now need to run it like: go run cmd/tcp-proxy/main.go. But now you can also import and use this as a package, with all the stuff that are cmdline args in the program as parameters and settings on an instance of a Proxy struct (with sane defaults). Otherwise the behavior (and the meat of the code) is unchanged.

package some-other-project

import "github.com/lumanetworks/go-tcp-proxy"

func Yay(localConnection *net.TCPConn, localAddress, remoteAddress *net.TCPAddr) {
    p := proxy.New(localConnection, localAddress, remoteAddress)
    p.Log.Color = true
    p.Nagles = true
    p.Matcher = myMatcher

    p.Start()
}

Changes:

• split the terminal related stuff (cmdline args, input, output) into a main file, outside the main package
• put the Proxy struct into a package so external users can use it directly
• set options that affect a Proxy instance on the struct, so they're not globals, and work for third party usage
• split logging into an interface and a struct that implements it, so external users can pass in their own to control output
• unify all output through loggers

[jpillora]

Awesome, thanks!