mirror of
https://github.com/node-red/node-red.git
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77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require("../../red/red");
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var spawn = require('child_process').spawn;
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var exec = require('child_process').exec;
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function ExecNode(n) {
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RED.nodes.createNode(this,n);
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this.cmd = n.command;
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this.append = n.append || "";
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this.useSpawn = n.useSpawn;
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var node = this;
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this.on("input", function(msg) {
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if (msg != null) {
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if (this.useSpawn == true) {
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// make the extra args into an array
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// then prepend with the msg.payload
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var arg = node.append.split(",");
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if (msg.payload != " ") { arg.unshift(msg.payload); }
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console.log(arg);
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var ex = spawn(node.cmd,arg);
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ex.stdout.on('data', function (data) {
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//console.log('[exec] stdout: ' + data);
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msg.payload = data;
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node.send([msg,null,null]);
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});
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ex.stderr.on('data', function (data) {
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//console.log('[exec] stderr: ' + data);
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msg.payload = data;
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node.send([null,msg,null]);
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});
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ex.on('close', function (code) {
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//console.log('[exec] result: ' + code);
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msg.payload = code;
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node.send([null,null,msg]);
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});
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}
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else {
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var cl = node.cmd+" "+msg.payload+" "+node.append;
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node.log(cl);
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var child = exec(cl, function (error, stdout, stderr) {
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msg.payload = stdout;
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var msg2 = {payload:stderr};
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//console.log('[exec] stdout: ' + stdout);
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//console.log('[exec] stderr: ' + stderr);
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if (error !== null) {
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var msg3 = {payload:error};
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//console.log('[exec] error: ' + error);
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}
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node.send([msg,msg2,msg3]);
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});
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}
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}
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});
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}
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RED.nodes.registerType("exec",ExecNode);
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