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<a href="http://github.com/dachev/node-crontab"><img alt="Fork me on GitHub" id="ribbon" src="http://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a><html>
<head>
<title>Crontab</title>
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<table id="source"><tbody><tr><td><h1>Crontab</h1><p>A module for reading, manipulating, and writing user cron jobs with <a href="http://www.nodejs.org">node</a>. Check out <a href="http://github.com/dachev/node-crontab">github</a> for the source and installation guide.</p></td><td></td></tr><tr class="filename"><td><h2 id="lib/index.js"><a href="#">index</a></h2></td><td>lib/index.js</td></tr><tr class="code">
<td class="docs">
<p>Constants
</p>
</td>
<td class="code">
<pre><code><span class="keyword">const</span> <span class="class">COMMAND</span> = <span class="string">'/usr/bin/crontab'</span>;
<span class="keyword">const</span> <span class="class">ITEMREX</span> = <span class="regexp">/^\s*([^@#\s]+)\s+([^@#\s]+)\s+([^@#\s]+)\s+([^@#\s]+)\s+([^@#\s]+)\s+([^#\n]*)(\s+#\s*([^\n]*)|$)/</span>;
<span class="keyword">const</span> <span class="class">SPECREX</span> = <span class="regexp">/@(\w+)\s([^#\n]*)(\s+#\s*([^\n]*)|$)/</span>;
<span class="keyword">const</span> <span class="class">SPECIALS</span> = {
<span class="string">'reboot'</span> : <span class="string">'@reboot'</span>,
<span class="string">'hourly'</span> : <span class="string">'0 * * * *'</span>,
<span class="string">'daily'</span> : <span class="string">'0 0 * * *'</span>,
<span class="string">'weekly'</span> : <span class="string">'0 0 * * 0'</span>,
<span class="string">'monthly'</span> : <span class="string">'0 0 1 * *'</span>,
<span class="string">'yearly'</span> : <span class="string">'0 0 1 1 *'</span>,
<span class="string">'annually'</span> : <span class="string">'0 0 1 1 *'</span>,
<span class="string">'midnight'</span> : <span class="string">'0 0 * * *'</span>
};
<span class="keyword">const</span> <span class="class">MONTH_ENUM</span> = [<span class="string">'jan'</span>,<span class="string">'feb'</span>,<span class="string">'mar'</span>,<span class="string">'apr'</span>,<span class="string">'may'</span>,<span class="string">'jun'</span>,<span class="string">'jul'</span>,<span class="string">'aug'</span>,<span class="string">'sep'</span>,<span class="string">'oct'</span>,<span class="string">'nov'</span>,<span class="string">'dec'</span>];
<span class="keyword">const</span> <span class="class">WEEK_ENUM</span> = [<span class="string">'sun'</span>,<span class="string">'mon'</span>,<span class="string">'tue'</span>,<span class="string">'wed'</span>,<span class="string">'thu'</span>,<span class="string">'fri'</span>,<span class="string">'sat'</span>,<span class="string">'sun'</span>];
<span class="keyword">const</span> <span class="class">SINFO</span> = [
{ <span class="string">'name'</span> : <span class="string">'Minute'</span>, <span class="string">'max'</span> : <span class="number integer">59</span>, <span class="string">'min'</span> : <span class="number integer">0</span> },
{ <span class="string">'name'</span> : <span class="string">'Hours'</span>, <span class="string">'max'</span> : <span class="number integer">23</span>, <span class="string">'min'</span> : <span class="number integer">0</span> },
{ <span class="string">'name'</span> : <span class="string">'Day of Month'</span>, <span class="string">'max'</span> : <span class="number integer">31</span>, <span class="string">'min'</span> : <span class="number integer">1</span> },
{ <span class="string">'name'</span> : <span class="string">'Month'</span>, <span class="string">'max'</span> : <span class="number integer">12</span>, <span class="string">'min'</span> : <span class="number integer">1</span>, <span class="string">'enum'</span> : <span class="class">MONTH_ENUM</span> },
{ <span class="string">'name'</span> : <span class="string">'Day of Week'</span>, <span class="string">'max'</span> : <span class="number integer">7</span>, <span class="string">'min'</span> : <span class="number integer">0</span>, <span class="string">'enum'</span> : <span class="class">WEEK_ENUM</span> },
];</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<ul><li><strong>class</strong>: <em>CronTab</em></li></ul>
<p>A JavaScript representation of a user crontab. Each tab has zero or more cron jobs coresponding
to the individual lines in the cron sytax.</p>
<h2>Examples</h2>
<pre><code>new CronTab('bob', function(err, tab) {
if (err) { console.log(err); process.exit(1); }
console.log("bob's tab: " + tab.render());
});
new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
console.log("current user's tab: " + tab.render());
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>username</strong></p></li><li><p><strong>param</strong>: <em>Function</em> <strong>callback</strong></p></li></ul>
</td>
<td class="code">
<pre><code><span class="keyword">function</span> <span class="class">CronTab</span>(<span class="variable">u</span>, <span class="variable">cb</span>) {
<span class="keyword">var</span> <span class="variable">self</span> = <span class="this">this</span>;
<span class="variable">user</span> = <span class="variable">u</span> || <span class="string">''</span>,
<span class="variable">root</span> = (<span class="variable">process</span>.<span class="variable">getuid</span>() == <span class="number integer">0</span>),
<span class="variable">backup</span> = {<span class="variable">lines</span>:[], <span class="variable">jobs</span>:[]},
<span class="variable">lines</span> = [],
<span class="variable">jobs</span> = [];
<span class="variable">load</span>(<span class="variable">cb</span>);</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Provides access to the jobs collection.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.getJobs();
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Array[CronJob]</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">getJobs</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">jobs</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Writes the crontab to the system. Saves all information.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
tab.remove(jobs);
tab.save(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
console.log('saved');
});
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>Function</em> <strong>callback</strong></p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">save</span> = <span class="keyword">function</span>(<span class="variable">cb</span>) {
<span class="keyword">var</span> <span class="variable">stdout</span> = <span class="string">''</span>,
<span class="variable">stderr</span> = <span class="string">''</span>,
<span class="variable">args</span> = <span class="variable">makeChildArgs</span>(<span class="string">'save'</span>),
<span class="variable">child</span> = <span class="class">Spawn</span>(<span class="class">COMMAND</span>, <span class="variable">args</span>);
<span class="variable">child</span>.<span class="variable">stdout</span>.<span class="variable">on</span>(<span class="string">'data'</span>, <span class="keyword">function</span>(<span class="variable">chunk</span>) {
<span class="variable">stdout</span> += <span class="variable">chunk</span>;
});
<span class="variable">child</span>.<span class="variable">stderr</span>.<span class="variable">on</span>(<span class="string">'data'</span>, <span class="keyword">function</span>(<span class="variable">chunk</span>) {
<span class="variable">stderr</span> += <span class="variable">chunk</span>;
});
<span class="variable">child</span>.<span class="variable">on</span>(<span class="string">'exit'</span>, <span class="keyword">function</span> (<span class="variable">code</span>) {
<span class="keyword">if</span> (<span class="variable">code</span> == <span class="number integer">0</span>) {
<span class="variable">cb</span> &<span class="variable">amp</span>;&<span class="variable">amp</span>; <span class="variable">cb</span>(<span class="keyword">null</span>, <span class="variable">self</span>);
}
<span class="keyword">else</span> {
<span class="variable">cb</span> &<span class="variable">amp</span>;&<span class="variable">amp</span>; <span class="variable">cb</span>({<span class="variable">message</span>:<span class="variable">stderr</span>}, <span class="variable">self</span>);
}
});
<span class="variable">child</span>.<span class="variable">stdin</span>.<span class="variable">write</span>(<span class="this">this</span>.<span class="variable">render</span>());
<span class="variable">child</span>.<span class="variable">stdin</span>.<span class="variable">end</span>();
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Renders the object to a string as it would be written to the system.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
console.log(tab.render());
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>String</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">render</span> = <span class="keyword">function</span>() {
<span class="keyword">var</span> <span class="variable">tokens</span> = [];
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="variable">lines</span>.<span class="variable">length</span>; <span class="variable">i</span>++) {
<span class="keyword">var</span> <span class="variable">job</span> = <span class="variable">lines</span>[<span class="variable">i</span>];
<span class="keyword">if</span> (<span class="variable">job</span>.<span class="variable">isValid</span> &<span class="variable">amp</span>;&<span class="variable">amp</span>; !<span class="variable">job</span>.<span class="variable">isValid</span>()) {
<span class="variable">tokens</span>.<span class="variable">push</span>(<span class="string">'# '</span> + <span class="variable">job</span>.<span class="variable">toString</span>());
<span class="keyword">continue</span>;
}
<span class="variable">tokens</span>.<span class="variable">push</span>(<span class="variable">job</span>.<span class="variable">toString</span>());
}
<span class="keyword">return</span> <span class="variable">tokens</span>.<span class="variable">join</span>(<span class="string">'\n'</span>).<span class="variable">trim</span>() + <span class="string">'\n'</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Creates a new job with the specified command, comment and date.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var future = Date.parse('2010/7/11');
tab.create('ls -l /');
tab.create('ls -l /', 'just a silly example');
tab.create('ls -l /', 'just a silly example', future);
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>command</strong></p></li><li><p><strong>param</strong>: <em>String</em> <strong>[comment]</strong></p></li><li><p><strong>param</strong>: <em>Date</em> <strong>[date]</strong></p></li><li><p><strong>return</strong>: <em>CronJob | null</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">create</span> = <span class="keyword">function</span>(<span class="variable">command</span>) {
<span class="keyword">var</span> <span class="variable">args</span> = <span class="class">Array</span>.<span class="variable">prototype</span>.<span class="variable">slice</span>.<span class="variable">call</span>(<span class="variable">arguments</span>),
<span class="variable">types</span> = <span class="variable">args</span>.<span class="variable">map</span>(<span class="keyword">function</span>(<span class="variable">arg</span>) { <span class="keyword">return</span> <span class="keyword">typeof</span> <span class="variable">arg</span>; }),
<span class="variable">comment</span> = (<span class="variable">types</span>[<span class="number integer">1</span>] == <span class="string">'string'</span>) ? <span class="variable">args</span>[<span class="number integer">1</span>] : <span class="keyword">null</span>,
<span class="variable">job</span> = <span class="variable">makeJob</span>(<span class="keyword">null</span>, <span class="variable">command</span>, <span class="variable">comment</span>);
<span class="keyword">if</span> (<span class="variable">job</span> == <span class="keyword">null</span>) { <span class="keyword">return</span> <span class="variable">job</span>; }
<span class="variable">jobs</span>.<span class="variable">push</span>(<span class="variable">job</span>);
<span class="variable">lines</span>.<span class="variable">push</span>(<span class="variable">job</span>);
<span class="keyword">var</span> <span class="variable">date</span> = (<span class="variable">args</span>[<span class="number integer">1</span>] <span class="variable">instanceof</span> <span class="class">Date</span>) ?
<span class="variable">args</span>[<span class="number integer">1</span>] : (<span class="variable">args</span>[<span class="number integer">2</span>] <span class="variable">instanceof</span> <span class="class">Date</span>) ?
<span class="variable">args</span>[<span class="number integer">2</span>] :
<span class="keyword">null</span>;
<span class="keyword">if</span> (<span class="variable">date</span> &<span class="variable">amp</span>;&<span class="variable">amp</span>; <span class="variable">date</span> <span class="variable">instanceof</span> <span class="class">Date</span>) {
<span class="variable">job</span>.<span class="variable">minute</span>().<span class="variable">on</span>(<span class="variable">date</span>.<span class="variable">getMinutes</span>());
<span class="variable">job</span>.<span class="variable">hour</span>().<span class="variable">on</span>(<span class="variable">date</span>.<span class="variable">getHours</span>());
<span class="variable">job</span>.<span class="variable">dom</span>().<span class="variable">on</span>(<span class="variable">date</span>.<span class="variable">getDate</span>());
<span class="variable">job</span>.<span class="variable">month</span>().<span class="variable">on</span>(<span class="variable">date</span>.<span class="variable">getMonth</span>()+<span class="number integer">1</span>);
}
<span class="keyword">return</span> <span class="variable">job</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns a list of jobs matching the specified command.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String | RegEx</em> <strong>pattern</strong></p></li><li><p><strong>return</strong>: <em>Array[CronJob]</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">findCommand</span> = <span class="keyword">function</span>(<span class="variable">pattern</span>) {
<span class="keyword">var</span> <span class="variable">results</span> = [];
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="variable">jobs</span>.<span class="variable">length</span>; <span class="variable">i</span>++) {
<span class="keyword">var</span> <span class="variable">job</span> = <span class="variable">jobs</span>[<span class="variable">i</span>];
<span class="keyword">if</span> (<span class="variable">job</span>.<span class="variable">command</span>().<span class="variable">match</span>(<span class="variable">pattern</span>)) {
<span class="variable">results</span>.<span class="variable">push</span>(<span class="variable">job</span>);
}
}
<span class="keyword">return</span> <span class="variable">results</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns a list of jobs matching the specified inline comment.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findComment('this should run every night');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String | RegEx</em> <strong>pattern</strong></p></li><li><p><strong>return</strong>: <em>Array[CronJob]</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">findComment</span> = <span class="keyword">function</span>(<span class="variable">pattern</span>) {
<span class="keyword">var</span> <span class="variable">results</span> = [];
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="variable">jobs</span>.<span class="variable">length</span>; <span class="variable">i</span>++) {
<span class="keyword">var</span> <span class="variable">job</span> = <span class="variable">jobs</span>[<span class="variable">i</span>];
<span class="keyword">if</span> (<span class="variable">job</span>.<span class="variable">comment</span>().<span class="variable">match</span>(<span class="variable">pattern</span>)) {
<span class="variable">results</span>.<span class="variable">push</span>(<span class="variable">job</span>);
}
}
<span class="keyword">return</span> <span class="variable">results</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Removes the specified jobs from the crontab.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
tab.remove(jobs);
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>Array[CronJob]</strong></p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">remove</span> = <span class="keyword">function</span>(<span class="variable">jobs</span>) {
<span class="keyword">if</span> (!(<span class="variable">jobs</span> <span class="variable">instanceof</span> <span class="class">CronJob</span>) &<span class="variable">amp</span>;&<span class="variable">amp</span>; !(<span class="variable">jobs</span> <span class="variable">instanceof</span> <span class="class">Array</span>)) {
<span class="keyword">return</span>;
}
<span class="keyword">if</span> (<span class="variable">jobs</span> <span class="variable">instanceof</span> <span class="class">CronJob</span>) {
<span class="variable">jobs</span> = [<span class="variable">jobs</span>];
}
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="variable">jobs</span>.<span class="variable">length</span>; <span class="variable">i</span>++) {
<span class="keyword">var</span> <span class="variable">job</span> = <span class="variable">jobs</span>[<span class="variable">i</span>];
<span class="variable">remove</span>(<span class="variable">job</span>);
}
<span class="variable">truncateLines</span>();
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Restores this crontab to its original state.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
tab.remove(jobs);
tab.reset();
});
</code></pre>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">reset</span> = <span class="keyword">function</span>() {
<span class="variable">lines</span> = <span class="variable">backup</span>.<span class="variable">lines</span>;
<span class="variable">jobs</span> = <span class="variable">backup</span>.<span class="variable">jobs</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<ul><li><strong>class</strong>: <em>CronJob</em></li></ul>
<p>A JavaScript representation of a cron job. Each job has exactly 5 time slots as per cron sytax:
<em>minute</em>, <em>hour</em>, <em>day-of-the-month</em>, <em>month</em>, <em>day-of-the-week</em>.</p>
<h2>Examples</h2>
<pre><code>var job1 = new CronJob('* * * * * ls -l / #comment');
var job2 = new CronJob(null, 'ls -l /', 'comment');</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String | null</em> <strong>line</strong></p></li><li><p><strong>param</strong>: <em>String</em> <strong>[command]</strong></p></li><li><p><strong>param</strong>: <em>String</em> <strong>[comment]</strong></p></li></ul>
</td>
<td class="code">
<pre><code><span class="keyword">function</span> <span class="class">CronJob</span>(<span class="variable">line</span>, <span class="variable">c</span>, <span class="variable">m</span>) {
<span class="keyword">var</span> <span class="variable">self</span> = <span class="this">this</span>,
<span class="variable">command</span> = <span class="keyword">null</span>,
<span class="variable">comment</span> = <span class="keyword">null</span>,
<span class="variable">valid</span> = <span class="variable">false</span>,
<span class="variable">slots</span> = [],
<span class="variable">special</span> = <span class="variable">false</span>;</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns true if this cron job is valid.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].isValid());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Boolean</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">isValid</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">valid</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Renders the object to a string as it would be written to the system.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>String</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">render</span> = <span class="keyword">function</span>() {
<span class="keyword">var</span> <span class="variable">time</span> = <span class="string">''</span>;
<span class="keyword">if</span> (<span class="variable">special</span>) {
<span class="variable">time</span> = <span class="variable">special</span>;
}
<span class="keyword">else</span> {
<span class="keyword">var</span> <span class="variable">tokens</span> = [];
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="number integer">5</span>; <span class="variable">i</span>++) {
<span class="variable">tokens</span>.<span class="variable">push</span>(<span class="variable">slots</span>[<span class="variable">i</span>].<span class="variable">toString</span>());
}
<span class="variable">time</span> = <span class="variable">tokens</span>.<span class="variable">join</span>(<span class="string">' '</span>);
}
<span class="keyword">var</span> <span class="variable">keys</span> = <span class="variable">getKeys</span>.<span class="variable">call</span>(<span class="class">SPECIALS</span>),
<span class="variable">vals</span> = <span class="variable">getVals</span>.<span class="variable">call</span>(<span class="class">SPECIALS</span>),
<span class="variable">timeIdx</span> = <span class="variable">vals</span>.<span class="variable">indexOf</span>(<span class="variable">time</span>);
<span class="keyword">if</span> (<span class="variable">timeIdx</span> &<span class="variable">gt</span>;=<span class="number integer">0</span> ) {
<span class="variable">time</span> = <span class="string">'@'</span> + <span class="variable">keys</span>[<span class="variable">timeIdx</span>];
}
<span class="keyword">var</span> <span class="variable">result</span> = <span class="variable">time</span> + <span class="string">' '</span> + <span class="variable">command</span>.<span class="variable">toString</span>()
<span class="keyword">if</span> (<span class="variable">comment</span>.<span class="variable">toString</span>() != <span class="string">''</span>) {
<span class="variable">result</span> += <span class="string">' #'</span> + <span class="variable">comment</span>.<span class="variable">toString</span>();
}
<span class="keyword">return</span> <span class="variable">result</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Sets the cron job to every reboot instead of a time pattern.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var command = '/usr/bin/env echo "starting some service..."';
jobs = tab.findCommand(command);
tab.remove(jobs);
var job = tabs.create(command);
job.everyReboot();
});
</code></pre>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">everyReboot</span> = <span class="keyword">function</span>() {
<span class="this">this</span>.<span class="variable">clear</span>();
<span class="variable">special</span> = <span class="string">'@reboot'</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Clears all time slots. Calling this method amounts to setting the time to '<em> </em> <em> </em> *'.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].clear());
}
});
</code></pre>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">clear</span> = <span class="keyword">function</span>() {
<span class="variable">special</span> = <span class="variable">false</span>;
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="variable">i</span> = <span class="number integer">0</span>; <span class="variable">i</span> &<span class="variable">lt</span>; <span class="variable">slots</span>.<span class="variable">length</span>; <span class="variable">i</span>++) {
<span class="variable">slots</span>[<span class="variable">i</span>].<span class="variable">clear</span>();
}
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the minute time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].minute().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>TimeSlot</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">minute</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">slots</span>[<span class="number integer">0</span>];
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the hour time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].hour().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>TimeSlot</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">hour</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">slots</span>[<span class="number integer">1</span>];
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the day-of-the-month time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].dom().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>TimeSlot</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">dom</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">slots</span>[<span class="number integer">2</span>];
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the month time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].month().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>TimeSlot</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">month</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">slots</span>[<span class="number integer">3</span>];
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the day-of-the-week time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].dow().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>TimeSlot</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">dow</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">slots</span>[<span class="number integer">4</span>];
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Command getter/setter.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].command('new command'));
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>[command]</strong></p></li><li><p><strong>return</strong>: <em>String</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">command</span> = <span class="keyword">function</span>(<span class="variable">c</span>) {
<span class="keyword">if</span> (<span class="variable">c</span>) {
<span class="variable">command</span> = <span class="keyword">new</span> <span class="class">CronCommand</span>(<span class="variable">c</span>.<span class="variable">toString</span>());
}
<span class="keyword">return</span> <span class="variable">command</span>.<span class="variable">toString</span>();
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Comment getter/setter.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].comment('new comment'));
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>[comment]</strong></p></li><li><p><strong>return</strong>: <em>String</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">comment</span> = <span class="keyword">function</span>(<span class="variable">c</span>) {
<span class="keyword">if</span> (<span class="variable">c</span>) {
<span class="variable">comment</span> = <span class="keyword">new</span> <span class="class">CronComment</span>(<span class="variable">c</span>.<span class="variable">toString</span>());
}
<span class="keyword">return</span> <span class="variable">comment</span>.<span class="variable">toString</span>();
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Renders the object to a string as it would be written to the system. See <strong>render</strong>.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].toString());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>String</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">toString</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="this">this</span>.<span class="variable">render</span>();
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<ul><li><strong>class</strong>: <em>TimeSlot</em></li></ul>
<p>A JavaScript representation of a time slot (e.g. minute, hour, month). Each slot has zero or
more time ranges coresponding to the comma separated list in the cron sytax
(e.g. <em>* / 4</em>, <em>10</em>, 5-15/2).</p>
<h2>Examples</h2>
<pre><code>var enum = ['jan','feb','mar','apr',
'may','jun','jul','aug',
'sep','oct','nov','dec'];
var slot1 = new TimeSlot('Month', 1, 12, enum);
var slot2 = new TimeSlot('Minute', 0, 59, null, '');</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>String</em> <strong>name</strong> (e.g 'Minute', 'Month')</p></li><li><p><strong>param</strong>: <em>Number</em> <strong>min</strong> minimum value</p></li><li><p><strong>param</strong>: <em>Number</em> <strong>max</strong> maximum value</p></li><li><p><strong>param</strong>: <em>Object | null</em> <strong>enum</strong> an object enumerating all possible values</p></li><li><p><strong>param</strong>: <em>String | null</em> <strong>value</strong> a value to parse (e.g '19-0/2,0-3')</p></li></ul>
</td>
<td class="code">
<pre><code><span class="keyword">function</span> <span class="class">TimeSlot</span>(<span class="variable">name</span>, <span class="variable">min</span>, <span class="variable">max</span>, <span class="keyword">enum</span>, <span class="variable">value</span>) {
<span class="keyword">var</span> <span class="variable">self</span> = <span class="this">this</span>,
<span class="variable">name</span> = <span class="variable">name</span>,
<span class="variable">min</span> = <span class="variable">min</span>,
<span class="variable">max</span> = <span class="variable">max</span>,
<span class="keyword">enum</span> = <span class="keyword">enum</span>,
<span class="variable">parts</span> = [];</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the minimum value for this time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].month().getMin());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Number</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">getMin</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">min</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the maximum value for this time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].month().getMax());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Number</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">getMax</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">max</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Returns the allowed value enumeration for this time slot.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].month().getEnum());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Object</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">getEnum</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="keyword">enum</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Renders the object to a string as it would be written to the system.</p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
console.log(jobs[i].month().render());
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>return</strong>: <em>Object</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">render</span> = <span class="keyword">function</span>() {
<span class="keyword">return</span> <span class="variable">parts</span>.<span class="variable">map</span>(<span class="keyword">function</span>(<span class="variable">part</span>) {
<span class="keyword">return</span> <span class="variable">part</span>.<span class="variable">toString</span>();
}).<span class="variable">join</span>(<span class="string">','</span>) || <span class="string">'*'</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Set this time slot to repeat every n units e.g. <em>* / n</em></p>
<h2>Examples</h2>
<pre><code>new CronTab(function(err, tab) {
if (err) { console.log(err); process.exit(1); }
var jobs = tab.findCommand('ls -l /');
for (var i = 0; i < jobs.length; i++) {
// every other month
jobs[i].month().every(2);
}
});</code></pre>
<h2></h2>
<ul><li><p><strong>param</strong>: <em>Number</em> <strong>number</strong></p></li><li><p><strong>return</strong>: <em>TimeRange</em> </p><p> </p></li></ul>
</td>
<td class="code">
<pre><code><span class="this">this</span>.<span class="variable">every</span> = <span class="keyword">function</span>(<span class="variable">n</span>) {
<span class="keyword">try</span> {
<span class="keyword">var</span> <span class="variable">range</span> = <span class="keyword">new</span> <span class="class">TimeRange</span>(<span class="variable">self</span>, <span class="string">'*/'</span> + <span class="variable">parseInt</span>(<span class="variable">n</span>));
<span class="variable">parts</span>.<span class="variable">push</span>(<span class="variable">range</span>);
<span class="keyword">return</span> <span class="variable">range</span>;
}
<span class="keyword">catch</span> (<span class="variable">e</span>) {}
<span class="keyword">return</span> <span class="keyword">null</span>;
}</code></pre>
</td>
</tr>
<tr class="code">
<td class="docs">
<p>Set this time slot to repeat exactly at the specified values e.g. <em>0,12</em></p>
<h2>Examples</h2>