all repos — h3rald @ 9f20c5f505def858ea3d9e5c088c1517edffeb76

The sources of https://h3rald.com

content/glyph/book/extending/command.html

 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 
<!DOCTYPE html> 
<html lang="en"> 
	<head> 
		<title>Defining Custom Commands &ndash; Glyph Documentation</title> 



		<meta charset="utf-8" /> 
		<meta name="author" content="Fabio Cevasco" /> 
		<meta name="copyright" content="Fabio Cevasco" /> 
		<meta name="robots" content="all, follow" /> 
		<meta name="Revisit-After" content="2 Days" /> 
		<meta name="language" content="en" /> 
		<meta name="target_country" content="en-us" /> 
		<meta name="country" content="United States" /> 
		<meta name="description" content="H3RALD - Fabio Cevasco's Web Site" /> 

		<meta name="keywords" content="h3rald, fabio cevasco, glyph" /> 
		<link rel="shortcut icon" href="/favicon.png" type="image/png" /> 
		<meta content="44.388041;9.073248" name="ICBM" /> 


		<link rel="stylesheet" type="text/css" href="/styles/html5reset.css" /> 
		<link rel="stylesheet" type="text/css" href="/styles/style.css" /> 

		<!--[if lte IE 8]>
		<script src="/js/html5.js" type="text/javascript"></script>
		<![endif]--> 
	</head> 
	<body> 
		<!--[if lte IE 6]>
		<div id="ie-warning">
			This site is not compatible with Internet Explorer 6 or lower. You should consider using a more modern browser for a better &ndash; and <em>safer</em> &ndash; web experience. [<a href="http://browsehappy.com/browsers/">Read More &raquo;</a>]
		</div>
		<![endif]--> 

		<section id="container"> 

			<header class="page"> 
				<nav class="home-link"> 
					<a href="/"> 
						<img src="/images/h3rald_small.png" alt="H3RALD" class="default"/> 
						<![if !IE]> 
						<img src="/images/h3rald_hover_small.png" alt="H3RALD" class="hover"/> 
						<![endif]> 
					</a> 
				</nav> 

				<nav class="section"> 
					/<a href="/glyph/" rel="archives">GLYPH</a> 
				</nav> 

			</header> 
			<article class="page"> 
				<header> 
					<hgroup> 
					<h1>Defining Custom Commands</h1> 
					<h2>Glyph Documentation</h2>
					</hgroup> 
				</header> 
				<section id="body-text" class="hyphenate glyph-book"> 

							<nav><a href="/glyph/book/extending/output_format.html">Custom Output Formats &larr;</a><a href="/glyph/book/index.html">Contents</a><a href="/glyph/book/troubleshooting/errors_generic.html">&rarr; Generic Errors</a></nav>
							<p>Glyph relies on <a href="http://davetron5000.github.com/gli/"><span class="caps">GLI</span></a> for defining commands. This useful library provides a high-level framework for creating command-line interface similar to <a href="http://git-scm.com/">Git</a>, its <span class="caps">DSL</span> takes care of pretty much everything, from managing command line arguments and options to providing an interactive help system.</p>
<section class="section">
<header><h1 id="h_96">Creating a 'glyph generate' command</h1></header>
<p>Consider the custom task defined in <a href="/glyph/book/extending/task.html#custom_generate_task">Creating a &#8216;custom:generate&#8217; task</a>. Creating a custom command to call it is fairly straightforward.</p>
<p>First of all, create a <code>lib/commands</code> folder in your project directory. Then, create a <code>.rb</code> file within it, e.g. <code>commands.rake</code>.</p>
<p>Finally, here&#8217;s the source of the command:</p>
	<div class="CodeRay">
  <div class="code"><pre><span class="no"> 1</span> <span class="co">GLI</span>.desc <span class="s"><span class="dl">'</span><span class="k">Generates a specific file required for Glyph releases</span><span class="dl">'</span></span>
<span class="no"> 2</span> arg_name <span class="s"><span class="dl">&quot;</span><span class="k">file_name</span><span class="dl">&quot;</span></span>
<span class="no"> 3</span> command <span class="sy">:generate</span> <span class="r">do</span> |c|
<span class="no"> 4</span>   c.action <span class="r">do</span> |global_options,options,args|
<span class="no"> 5</span>     <span class="r">if</span> args.blank? <span class="r">then</span>
<span class="no"> 6</span>       raise <span class="co">RuntimeError</span>, <span class="s"><span class="dl">&quot;</span><span class="k">You must specify a file to generate</span><span class="dl">&quot;</span></span>
<span class="no"> 7</span>     <span class="r">else</span>
<span class="no"> 8</span>       <span class="co">Glyph</span>.run <span class="s"><span class="dl">'</span><span class="k">custom:generate</span><span class="dl">'</span></span>, args[<span class="i">0</span>]
<span class="no"> 9</span>     <span class="r">end</span>
<span class="no"><strong>10</strong></span>   <span class="r">end</span>
<span class="no">11</span> <span class="r">end</span></pre></div>
</div>

	<p>That&#8217;s it. If you try to run <code>glyph help</code> within your project directory, notice that there&#8217;s a new entry for the generate command:</p>
	<div class="CodeRay">
  <div class="code"><pre><span class="no"> 1</span> $ glyph help
<span class="no"> 2</span> =====================================
<span class="no"> 3</span> Glyph v.0.4.1
<span class="no"> 4</span> =====================================
<span class="no"> 5</span> usage: glyph command [options]
<span class="no"> 6</span> 
<span class="no"> 7</span> Options:
<span class="no"> 8</span>     -d, --debug - Enable debugging
<span class="no"> 9</span> 
<span class="no"><strong>10</strong></span> Commands:
<span class="no">11</span>     add      - Add a new text file to the project
<span class="no">12</span>     compile  - Compile the project
<span class="no">13</span>     config   - Get/set configuration settings
<span class="no">14</span>     generate - Generates a specific file required for Glyph releases
<span class="no">15</span>     help     - Shows list of commands or help for one command
<span class="no">16</span>     init     - Create a new Glyph project
<span class="no">17</span>     outline  - Display the document outline
<span class="no">18</span>     stats    - Display statistics
<span class="no">19</span>     todo     - Display all project TODO items</pre></div>
</div>

	<p>You can now run the Glyph command as expected:</p>
	<div class="CodeRay">
  <div class="code"><pre><span class="no">1</span> $ glyph -d generate changelog
<span class="no">2</span> -- Generating CHANGELOG...
<span class="no">3</span> -- Done.</pre></div>
</div>

</section>
							<nav><a href="/glyph/book/extending/output_format.html">Custom Output Formats &larr;</a><a href="/glyph/book/index.html">Contents</a><a href="/glyph/book/troubleshooting/errors_generic.html">&rarr; Generic Errors</a></nav>
				</section> 
			</article> 


			<footer> 
				<section class="ads"> 
					<script type="text/javascript"><!--
						google_ad_client = "pub-2871497824158668";
						/* 728x90, created 9/10/10 */
						google_ad_slot = "3963343166";
						google_ad_width = 728;
						google_ad_height = 90;
						//-->
					</script> 
					<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> 
					</script> 
				</section> 
				<section> 
					<nav> 
						<a href="/about/">ABOUT</a>|<a href="/contact/">CONTACT</a> 
					</nav> 
					<p>H3RALD Web Site v8.1 &mdash; &copy; 2010 &mdash; <em>Fabio Cevasco</em></p> 
				</section> 
			</footer> 
		</section><!-- #container end --> 
		<script src="http://www.google.com/jsapi?key=ABQIAAAAr6RY1Z6dchG_sX9WDLSy3xRlq2n1sm52B5HDRR5tm6o8XM18FhR56xHNNH6CsX86uN5VoTrglpyOyQ" type="text/javascript"></script> 
		<!-- <script src="/js/jquery.js" type="text/javascript"></script> --> 
		<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> 
		<script src="/js/jquery-timeago.js" type="text/javascript"></script> 
		<script src="/js/jquery-easing.js" type="text/javascript"></script> 
		<script src="/js/jquery-fancybox.js" type="text/javascript"></script> 
		<script src="/js/jquery-toc.js" type="text/javascript"></script> 
		<script src="/js/date.js" type="text/javascript"></script> 
		<script src="/js/feeds.js" type="text/javascript"></script> 
		<script src="/js/search.js" type="text/javascript"></script> 
		<script src="/js/hyphenator.min.js" type="text/javascript"></script> 
		<script src="/js/init.js" type="text/javascript"></script> 
		<!-- Start Google Analytics --> 
		<script type="text/javascript"> 
			var _gaq = _gaq || [];
			_gaq.push(['_setAccount', 'UA-18587377-1']);
			_gaq.push(['_trackPageview']);

			(function() {
			var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
			ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
			var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
			})();
		</script> 
		<!-- End Google Analytics --> 
		<!-- Start of StatCounter Code --> 
		<script type="text/javascript"> 
			var sc_project=6193656; 
			var sc_invisible=1; 
			var sc_security="57f7ee2a"; 
		</script> 
		<script type="text/javascript" src="http://www.statcounter.com/counter/counter_xhtml.js"></script> 
		<!-- End of StatCounter Code --> 
	</body> 
</html>