Comments on: Advanced Capistrano usage

By: Bash

Bash — Wed, 10 Jul 2013 20:55:15 +0000

Thank you very much for item #5 – generating server lists on the fly. This was a huge help to me!

The only change I needed to make was to add :web role node creation inside the loop that already creates :app nodes.

By: Dmytro Shteflyuk

Dmytro Shteflyuk — Fri, 04 Nov 2011 15:10:45 +0000

In reply to michael. There is no reason to fail if the file is not exists. It is not a failure situation, so it's totally ok to treat both missing file and empty file as no-lock.

By: michael

michael — Wed, 14 Sep 2011 03:08:23 +0000

1	data = capture("cat #{shared_path}/system/lock.txt 2>/dev/null;echo").to_s.strip

That is a dirty line of code – I think you want to check if the file exists first, and do an exit 1; at the end. Something similar to this:

1	data = capture("if [ -f #{shared_path}/system/lock.txt ]; then cat #{shared_path}/system/lock.txt; else exit 1;fi")

I have not tested, but that should get you just about what you were going for.