Golang Automatic Reloads

#1

Post by alexedwards » Sat, Sep 21, 2013, 8:57 AM UTC

Golang Automatic Reloads
alexedwards.net

Re: Golang Automatic Reloads

#2

Post by samnardoni » Sat, Sep 21, 2013, 10:13 AM UTC

Or rerun by skelterjohn http://github.com/skelterjohn/rerun

Re: Golang Automatic Reloads

#3

Post by masklinn » Sat, Sep 21, 2013, 11:38 AM UTC

That's more of an automatic restart (kill and start the process again) than an automatic reload (update code within the running system). And surely there are non-go-specific tools which can already do that, aren't there?

Re: Golang Automatic Reloads

#4

Post by rorrr2 » Sat, Sep 21, 2013, 12:10 PM UTC

On Windows you can use something like this

http://www.nodesoft.com/foldermonitor

(freeware)

Re: Golang Automatic Reloads

#5

Post by lpmay » Sat, Sep 21, 2013, 1:30 PM UTC

masklinn wrote: post #3

That's more of an automatic restart (kill and start the process again) than an automatic reload (update code within the running system). And surely there are non-go-specific tools which can already do that, aren't there?

Yup, such tools exist. I've used peat before for stuff like this:

https://github.com/sjl/peat

Re: Golang Automatic Reloads

#6

Post by Sirupsen » Sat, Sep 21, 2013, 3:06 PM UTC

SIGKILL seems a little aggressive for a controlled process restart.

Re: Golang Automatic Reloads

#7

Post by mischanix » Sat, Sep 21, 2013, 3:08 PM UTC

rorrr2 wrote: post #4

On Windows you can use something like this http://www.nodesoft.com/foldermonitor (freeware)

Go also provides a syscall for ReadDirectoryChanges, and one really nice Go library that uses inotify/ReadDirectoryChanges is https://github.com/howeyc/fsnotify

Re: Golang Automatic Reloads

#8

Post by deafbybeheading » Sat, Sep 21, 2013, 4:15 PM UTC

Sirupsen wrote: post #6

SIGKILL seems a little aggressive for a controlled process restart.

Not to mention the program sigkills itself before it attempts to `exit 0`...

Re: Golang Automatic Reloads

#9

Post by dinduks » Sat, Sep 21, 2013, 4:50 PM UTC

CEL is a similar and more generic script: it can do that for any program and works on Linux and Mac.

https://github.com/Dinduks/change-execute-loop

Re: Golang Automatic Reloads

#10

Post by alexedwards » Sat, Sep 21, 2013, 5:00 PM UTC

deafbybeheading wrote: post #8

Sirupsen wrote: post #6

SIGKILL seems a little aggressive for a controlled process restart.

Not to mention the program sigkills itself before it attempts to `exit 0`...

Genuine question - can a process kill itself?

The kill of go-reload was to make sure background processes get cleaned up, but I suspect one of the kill or exit in the close function is superfluous.