Run applications, and stuff, watch for changes optionally and restart. Main use case might be a lighter upstart/systemd/supervisord replacement for use in Docker containers.
Can be found in releases
$ curl -o runit-v0.0.5.linux.tar.gz -L https://github.com/pkar/runit/releases/download/v0.0.5/runit-v0.0.5.linux.tar.gz
$ tar -xzvf runit-v0.0.5.linux.tar.gz
$ chmod +x runit && mv runit /usr/local/bin/$ runit
-alive
try to keep the command alive if it dies, you would use this for long running services like a server *optional
-cmd string
command to run *required
-ignore string
a comma seperated list of regex patterns to ignore *optional
-version
print the version
-wait
used with watch, this will wait for file changes and then run the cmd given *optional
-watch string
path to directory or file to watch and restart cmd, the command will be run on startup unless wait is specified *optional
$ runit --cmd="echo blah" --watch=./
2015/08/04 21:46:01 running echo blah
blah
2015/08/04 21:46:01 captured child exited continue...
2015/08/04 21:46:05 event: "foo": CREATE
2015/08/04 21:46:05 Detected new file foo
2015/08/04 21:46:05 restart event
2015/08/04 21:46:05 restarting
2015/08/04 21:46:05 killing subprocess
2015/08/04 21:46:05 running echo blah
blah
2015/08/04 21:46:05 captured child exited continue...
2015/08/04 21:46:05 event: "foo": CHMOD
2015/08/04 21:46:05 event: "foo": CHMOD
$ # long running processes with restart and watch
$ runit --alive --watch . --cmd="test/test.sh"
INFO 2015/02/03 20:54:59 runit.go:100: running test/test.sh
foo
foo
foo
foo
^C
$ # long running processes without watch
$ # process can be restarted by sending sighup to runit or
$ # or killing the subprocess cmd
$ # kill -SIGHUP $PID
$ runit --alive --cmd="test/test.sh" --ignore=".*.pyc,.*.DS_Store$"
2015/08/04 21:47:14 running test/test.sh
2015/08/04 21:47:14 running test/test.sh
foo
foo
foo
foo
foo
foo
foo
foo
foo
foo
^C2015/08/04 21:47:24 captured interrupt- Set gopath and go get github.com/pkar/runit
- cd src/github.com/pkar/runit
- ./make.sh
$ ./make.sh test
+ eval test
++ test
++ go test -cover .
ok github.com/pkar/runit 5.536s coverage: 89.2% of statements
++ golint .
++ go tool vet --composites=false .