Support for complex shell commands

[ffledgling]

I'm trying to run firetower -c 'go build && ./mybin', but firetower doesn't seem to kill ./mybin correctly before attempting to restart it, which leads to problems like:

2017/06/21 20:49:32 listen tcp 127.0.0.1:8080: bind: address already in use

I tried running multiple firetower instances, but that's no bueno. Attempting to stick it in subshell like so: firetower -c '(go build && ./mybin)' doesn't seem to work either.

What's the right way of doing this? (Shell script that does make and run?)

[mweitzel]

Hi, @ffledgling, thanks for opening an issue.

For now, since ./mybin process takes a second to close the port, and firetower starts the next process before that completes (as it only waits for the bash parent process), you can use netcat to block until the port clears before starting another process.

Something like this will probably work:

firetower -c 'go build && ( nc localhost 8080 ; ./mybin )'

I've ran into this with a few other languages, and I'm still undecided on where to draw the line of responsibility. Things get really hairy with orphaned processes, but I'm open to suggestions.

This doesn't exist yet, but would a flat like --clear-port 8080 be helpful?