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/*
 * This file is part of the Spludo Framework.
 * Copyright (c) 2009-2010 DracoBlue, http://dracoblue.net/
 *
 * Licensed under the terms of MIT License. For the full copyright and license
 * information, please see the LICENSE file in the root folder.
 */
var server_filename = "server.js";


var child_process = require('child_process');
var fs = require("fs");
var sys = require("sys");

dev_server = {

    process: null,

    files: [],

    restarting: false,

    "restart": function() {
        this.restarting = true;
        sys.debug('DEVSERVER: Stopping server for restart');
        this.process.kill();
    },

    "start": function() {
        var that = this;
        sys.debug('DEVSERVER: Starting server');
        that.watchFiles();

        this.process = child_process.spawn(process.argv[0], [server_filename]);

        this.process.stdout.addListener('data', function (data) {
            process.stdout.write(data);
        });

        this.process.stderr.addListener('data', function (data) {
            sys.print(data);
        });

        this.process.addListener('exit', function (code) {
            sys.debug('DEVSERVER: Child process exited: ' + code);
            this.process = null;
            if (that.restarting) {
                that.restarting = true;
                that.unwatchFiles();
                that.start();
            }
        });

    },

    "watchFiles": function() {
        var that = this;

        child_process.exec('find . | grep "\.js$"', function(error, stdout, stderr) {
            var files = stdout.trim().split("\n");

            files.forEach(function(file) {
                that.files.push(file);
                fs.watchFile(file, {interval : 500}, function(curr, prev) {
                    if (curr.mtime.valueOf() != prev.mtime.valueOf() || curr.ctime.valueOf() != prev.ctime.valueOf()) {
                        sys.debug('DEVSERVER: Restarting because of changed file at ' + file);
                        dev_server.restart();
                    }
                });
            });
        });
   },

    "unwatchFiles": function() {
        this.files.forEach(function(file) {
            fs.unwatchFile(file);
        });
        this.files = [];
    }
}


dev_server.start();
https://snipt.net/embed/e5d71d6bbc0cdb48ee3ccb2a1c17a90f/
/raw/e5d71d6bbc0cdb48ee3ccb2a1c17a90f/
e5d71d6bbc0cdb48ee3ccb2a1c17a90f
js
JavaScript
87
2019-08-17T21:39:55
True
False
False
/api/public/snipt/38460/
nodejs-hot-reload
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a> <a href="#L-33">33</a> <a href="#L-34">34</a> <a href="#L-35">35</a> <a href="#L-36">36</a> <a href="#L-37">37</a> <a href="#L-38">38</a> <a href="#L-39">39</a> <a href="#L-40">40</a> <a href="#L-41">41</a> <a href="#L-42">42</a> <a href="#L-43">43</a> <a href="#L-44">44</a> <a href="#L-45">45</a> <a href="#L-46">46</a> <a href="#L-47">47</a> <a href="#L-48">48</a> <a href="#L-49">49</a> <a href="#L-50">50</a> <a href="#L-51">51</a> <a href="#L-52">52</a> <a href="#L-53">53</a> <a href="#L-54">54</a> <a href="#L-55">55</a> <a href="#L-56">56</a> <a href="#L-57">57</a> <a href="#L-58">58</a> <a href="#L-59">59</a> <a href="#L-60">60</a> <a href="#L-61">61</a> <a href="#L-62">62</a> <a href="#L-63">63</a> <a href="#L-64">64</a> <a href="#L-65">65</a> <a href="#L-66">66</a> <a href="#L-67">67</a> <a href="#L-68">68</a> <a href="#L-69">69</a> <a href="#L-70">70</a> <a href="#L-71">71</a> <a href="#L-72">72</a> <a href="#L-73">73</a> <a href="#L-74">74</a> <a href="#L-75">75</a> <a href="#L-76">76</a> <a href="#L-77">77</a> <a href="#L-78">78</a> <a href="#L-79">79</a> <a href="#L-80">80</a> <a href="#L-81">81</a> <a href="#L-82">82</a> <a href="#L-83">83</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="cm">/*</span> </span><span id="L-2"><a name="L-2"></a><span class="cm"> * This file is part of the Spludo Framework.</span> </span><span id="L-3"><a name="L-3"></a><span class="cm"> * Copyright (c) 2009-2010 DracoBlue, http://dracoblue.net/</span> </span><span id="L-4"><a name="L-4"></a><span class="cm"> *</span> </span><span id="L-5"><a name="L-5"></a><span class="cm"> * Licensed under the terms of MIT License. For the full copyright and license</span> </span><span id="L-6"><a name="L-6"></a><span class="cm"> * information, please see the LICENSE file in the root folder.</span> </span><span id="L-7"><a name="L-7"></a><span class="cm"> */</span> </span><span id="L-8"><a name="L-8"></a><span class="kd">var</span> <span class="nx">server_filename</span> <span class="o">=</span> <span class="s2">&quot;server.js&quot;</span><span class="p">;</span> </span><span id="L-9"><a name="L-9"></a> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a><span class="kd">var</span> <span class="nx">child_process</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;child_process&#39;</span><span class="p">);</span> </span><span id="L-12"><a name="L-12"></a><span class="kd">var</span> <span class="nx">fs</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s2">&quot;fs&quot;</span><span class="p">);</span> </span><span id="L-13"><a name="L-13"></a><span class="kd">var</span> <span class="nx">sys</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s2">&quot;sys&quot;</span><span class="p">);</span> </span><span id="L-14"><a name="L-14"></a> </span><span id="L-15"><a name="L-15"></a><span class="nx">dev_server</span> <span class="o">=</span> <span class="p">{</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a> <span class="nx">process</span><span class="o">:</span> <span class="kc">null</span><span class="p">,</span> </span><span id="L-18"><a name="L-18"></a> </span><span id="L-19"><a name="L-19"></a> <span class="nx">files</span><span class="o">:</span> <span class="p">[],</span> </span><span id="L-20"><a name="L-20"></a> </span><span id="L-21"><a name="L-21"></a> <span class="nx">restarting</span><span class="o">:</span> <span class="kc">false</span><span class="p">,</span> </span><span id="L-22"><a name="L-22"></a> </span><span id="L-23"><a name="L-23"></a> <span class="s2">&quot;restart&quot;</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-24"><a name="L-24"></a> <span class="k">this</span><span class="p">.</span><span class="nx">restarting</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span> </span><span id="L-25"><a name="L-25"></a> <span class="nx">sys</span><span class="p">.</span><span class="nx">debug</span><span class="p">(</span><span class="s1">&#39;DEVSERVER: Stopping server for restart&#39;</span><span class="p">);</span> </span><span id="L-26"><a name="L-26"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span><span class="p">.</span><span class="nx">kill</span><span class="p">();</span> </span><span id="L-27"><a name="L-27"></a> <span class="p">},</span> </span><span id="L-28"><a name="L-28"></a> </span><span id="L-29"><a name="L-29"></a> <span class="s2">&quot;start&quot;</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-30"><a name="L-30"></a> <span class="kd">var</span> <span class="nx">that</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span> </span><span id="L-31"><a name="L-31"></a> <span class="nx">sys</span><span class="p">.</span><span class="nx">debug</span><span class="p">(</span><span class="s1">&#39;DEVSERVER: Starting server&#39;</span><span class="p">);</span> </span><span id="L-32"><a name="L-32"></a> <span class="nx">that</span><span class="p">.</span><span class="nx">watchFiles</span><span class="p">();</span> </span><span id="L-33"><a name="L-33"></a> </span><span id="L-34"><a name="L-34"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span> <span class="o">=</span> <span class="nx">child_process</span><span class="p">.</span><span class="nx">spawn</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="p">[</span><span class="nx">server_filename</span><span class="p">]);</span> </span><span id="L-35"><a name="L-35"></a> </span><span id="L-36"><a name="L-36"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span><span class="p">.</span><span class="nx">stdout</span><span class="p">.</span><span class="nx">addListener</span><span class="p">(</span><span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-37"><a name="L-37"></a> <span class="nx">process</span><span class="p">.</span><span class="nx">stdout</span><span class="p">.</span><span class="nx">write</span><span class="p">(</span><span class="nx">data</span><span class="p">);</span> </span><span id="L-38"><a name="L-38"></a> <span class="p">});</span> </span><span id="L-39"><a name="L-39"></a> </span><span id="L-40"><a name="L-40"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span><span class="p">.</span><span class="nx">stderr</span><span class="p">.</span><span class="nx">addListener</span><span class="p">(</span><span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-41"><a name="L-41"></a> <span class="nx">sys</span><span class="p">.</span><span class="nx">print</span><span class="p">(</span><span class="nx">data</span><span class="p">);</span> </span><span id="L-42"><a name="L-42"></a> <span class="p">});</span> </span><span id="L-43"><a name="L-43"></a> </span><span id="L-44"><a name="L-44"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span><span class="p">.</span><span class="nx">addListener</span><span class="p">(</span><span class="s1">&#39;exit&#39;</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-45"><a name="L-45"></a> <span class="nx">sys</span><span class="p">.</span><span class="nx">debug</span><span class="p">(</span><span class="s1">&#39;DEVSERVER: Child process exited: &#39;</span> <span class="o">+</span> <span class="nx">code</span><span class="p">);</span> </span><span id="L-46"><a name="L-46"></a> <span class="k">this</span><span class="p">.</span><span class="nx">process</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span> </span><span id="L-47"><a name="L-47"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">that</span><span class="p">.</span><span class="nx">restarting</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-48"><a name="L-48"></a> <span class="nx">that</span><span class="p">.</span><span class="nx">restarting</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span> </span><span id="L-49"><a name="L-49"></a> <span class="nx">that</span><span class="p">.</span><span class="nx">unwatchFiles</span><span class="p">();</span> </span><span id="L-50"><a name="L-50"></a> <span class="nx">that</span><span class="p">.</span><span class="nx">start</span><span class="p">();</span> </span><span id="L-51"><a name="L-51"></a> <span class="p">}</span> </span><span id="L-52"><a name="L-52"></a> <span class="p">});</span> </span><span id="L-53"><a name="L-53"></a> </span><span id="L-54"><a name="L-54"></a> <span class="p">},</span> </span><span id="L-55"><a name="L-55"></a> </span><span id="L-56"><a name="L-56"></a> <span class="s2">&quot;watchFiles&quot;</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-57"><a name="L-57"></a> <span class="kd">var</span> <span class="nx">that</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span> </span><span id="L-58"><a name="L-58"></a> </span><span id="L-59"><a name="L-59"></a> <span class="nx">child_process</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="s1">&#39;find . | grep &quot;\.js$&quot;&#39;</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">error</span><span class="p">,</span> <span class="nx">stdout</span><span class="p">,</span> <span class="nx">stderr</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-60"><a name="L-60"></a> <span class="kd">var</span> <span class="nx">files</span> <span class="o">=</span> <span class="nx">stdout</span><span class="p">.</span><span class="nx">trim</span><span class="p">().</span><span class="nx">split</span><span class="p">(</span><span class="s2">&quot;\n&quot;</span><span class="p">);</span> </span><span id="L-61"><a name="L-61"></a> </span><span id="L-62"><a name="L-62"></a> <span class="nx">files</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">file</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-63"><a name="L-63"></a> <span class="nx">that</span><span class="p">.</span><span class="nx">files</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">file</span><span class="p">);</span> </span><span id="L-64"><a name="L-64"></a> <span class="nx">fs</span><span class="p">.</span><span class="nx">watchFile</span><span class="p">(</span><span class="nx">file</span><span class="p">,</span> <span class="p">{</span><span class="nx">interval</span> <span class="o">:</span> <span class="mi">500</span><span class="p">},</span> <span class="kd">function</span><span class="p">(</span><span class="nx">curr</span><span class="p">,</span> <span class="nx">prev</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-65"><a name="L-65"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">curr</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">valueOf</span><span class="p">()</span> <span class="o">!=</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">valueOf</span><span class="p">()</span> <span class="o">||</span> <span class="nx">curr</span><span class="p">.</span><span class="nx">ctime</span><span class="p">.</span><span class="nx">valueOf</span><span class="p">()</span> <span class="o">!=</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">ctime</span><span class="p">.</span><span class="nx">valueOf</span><span class="p">())</span> <span class="p">{</span> </span><span id="L-66"><a name="L-66"></a> <span class="nx">sys</span><span class="p">.</span><span class="nx">debug</span><span class="p">(</span><span class="s1">&#39;DEVSERVER: Restarting because of changed file at &#39;</span> <span class="o">+</span> <span class="nx">file</span><span class="p">);</span> </span><span id="L-67"><a name="L-67"></a> <span class="nx">dev_server</span><span class="p">.</span><span class="nx">restart</span><span class="p">();</span> </span><span id="L-68"><a name="L-68"></a> <span class="p">}</span> </span><span id="L-69"><a name="L-69"></a> <span class="p">});</span> </span><span id="L-70"><a name="L-70"></a> <span class="p">});</span> </span><span id="L-71"><a name="L-71"></a> <span class="p">});</span> </span><span id="L-72"><a name="L-72"></a> <span class="p">},</span> </span><span id="L-73"><a name="L-73"></a> </span><span id="L-74"><a name="L-74"></a> <span class="s2">&quot;unwatchFiles&quot;</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-75"><a name="L-75"></a> <span class="k">this</span><span class="p">.</span><span class="nx">files</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">file</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-76"><a name="L-76"></a> <span class="nx">fs</span><span class="p">.</span><span class="nx">unwatchFile</span><span class="p">(</span><span class="nx">file</span><span class="p">);</span> </span><span id="L-77"><a name="L-77"></a> <span class="p">});</span> </span><span id="L-78"><a name="L-78"></a> <span class="k">this</span><span class="p">.</span><span class="nx">files</span> <span class="o">=</span> <span class="p">[];</span> </span><span id="L-79"><a name="L-79"></a> <span class="p">}</span> </span><span id="L-80"><a name="L-80"></a><span class="p">}</span> </span><span id="L-81"><a name="L-81"></a> </span><span id="L-82"><a name="L-82"></a> </span><span id="L-83"><a name="L-83"></a><span class="nx">dev_server</span><span class="p">.</span><span class="nx">start</span><span class="p">();</span> </span></pre></div> </td></tr></table>
node.js