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gem server launch agent
#!/usr/local/bin/bash -l
set -eo pipefail
declare -a GEM_SERVER_PIDS
function server_port {
ruby_version="${1}"
port_last_3="`echo "${ruby_version}" | sed 's/^ruby-\([0-9]\)\.\([0-9]\)\.\([0-9]\).*$/\1\2\3/'`"
echo "8${port_last_3}"
}
function cleanup {
# allow failures during cleanup, just let the script exit
set +e
for pid in ${GEM_SERVER_PIDS[@]}; do
echo "Reaping child ${pid}..."
kill "${pid}"
done
}
trap cleanup EXIT
rubies="`chruby | tr -d '*' | awk '{print $1}'`"
while read -r ruby; do
port="`server_port "${ruby}"`"
echo "Launching Ruby ${ruby} at localhost:${port}..."
chruby "${ruby}"
gem server -p "${port}" &
pid=$!
GEM_SERVER_PIDS+=(${pid})
echo "Launched ${pid}"
done <<< "${rubies}"
wait
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>org.ruby-lang.rdoc</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/bin/gem-servers</string>
</array>
<key>KeepAlive</key>
<true/>
<key>StandardOutPath</key>
<string>/var/log/gem-servers.out.log</string>
<key>StandardErrorPath</key>
<string>/var/log/gem-servers.err.log</string>
</dict>
</plist>
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