<!DOCTYPE html> <script type="text/x-red" data-template-name="daemon"> <div class="form-row"> <label for="node-input-command"><i class="fa fa-file"></i> Command</label> <input type="text" id="node-input-command" placeholder="command"> </div> <div class="form-row"> <label for="node-input-args"><i class="fa fa-list"></i> Arguments</label> <input type="text" id="node-input-args" placeholder="space separated arguments"> </div> <div class="form-row"> <label> </label> <input type="checkbox" id="node-input-autorun" style="display:inline-block; width: auto; vertical-align:baseline;"> <label for="node-input-autorun" style="width: 70%;">Auto-start daemon on deploy ?</label> </div> <div class="form-row"> <label> </label> <input type="checkbox" id="node-input-cr" style="display:inline-block; width:auto; vertical-align:baseline;"> <label for="node-input-cr" style="width: 70%;">Add [enter] to every message sent ?</label> </div> <div class="form-row"> <label> </label> <input type="checkbox" id="node-input-redo" style="display:inline-block; width:auto; vertical-align:baseline;"> <label for="node-input-redo" style="width: 70%;">Relaunch command on exit or error ?</label> </div> <div class="form-row"> <label for="node-input-op"> and</label> <select id="node-input-op" style='width:70%'> <option value="buffer">leave reply as a buffer</option> <option value="string">format reply as a string</option> <option value="lines">output lines of text</option> <option value="number">try to convert reply to a number</option> </select> </div> <div class="form-row"> <label for="node-input-closer"> on close</label> <select id="node-input-closer" style='width:70%'> <option value="SIGKILL">kill process immediately</option> <option value="SIGTERM">try to terminate process</option> <option value="SIGINT">try to interrupt process</option> </select> </div> <div class="form-row"> <label for="node-input-name"><i class="fa fa-tag"></i> Name</label> <input type="text" id="node-input-name" placeholder="Name"> </div> <div class="form-tips"><b>Note:</b> The command should just be the actual command. All parameters should be passed in as arguments.</div> </script> <script type="text/x-red" data-help-name="daemon"> <p>Calls out to a long running system command. Sends <code>msg.payload</code> to stdin of the process.</p> <p>Provides 3 outputs... stdout, stderr, and return code , from the running command.</p> <p>If the called program stops (i.e. a return code is produced), this node can attempt to restart the command.</p> <p>Setting <code>msg.kill</code> to a signal name (e.g. SIGINT, SIGHUP) will stop the process - but if the restart flag is set it will then auto restart. Sending <code>msg.start</code> will also re-start the process.</p> <p><b>Note:</b> Some applications will automatically buffer lines of output. It is advisable to turn off this behaviour. For example, if running a Python app, the <code>-u</code> parameter will stop the output being buffered.</p> </script> <script type="text/javascript"> RED.nodes.registerType('daemon',{ category: 'advanced-function', color:"darksalmon", defaults: { name: {value:""}, command: {value:"",required:true}, args: {value:""}, autorun: {value:true}, cr: {value:false}, redo: {value:true}, op: {value:"string"}, closer: {value:"SIGKILL"} }, inputs:1, outputs:3, outputLabels: ["stdout","stderr","exit code"], icon: "arrow-in.png", align: "right", label: function() { return this.name||this.command||"daemon"; }, labelStyle: function() { return this.name?"node_label_italic":""; }, oneditprepare: function() { if (this.autorun === undefined) { $("#node-input-autorun").prop('checked', true); } } }); </script>