all repos — h3rald @ 525c791906b50e642081df195c72e326208e4468

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
 176
 177
 178
 179
 180
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
	<head>
<title>Glyph</title>
<meta name="author" content="Fabio Cevasco" />

<meta name="copyright" content="Fabio Cevasco" />
<meta name="generator" content="Glyph v0.4.0 (http://www.h3rald.com/glyph)" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>Defining Custom Commands - Glyph</title>
		<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, technical writing, html, html5, book" />
		<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
		<meta content="44.388041;9.073248" name="ICBM" />

		<link href="/css/main.css" media="all" rel="stylesheet" type="text/css" />
		<link href="/glyph/book/styles/default.css" rel="stylesheet" type="text/css" />
</head>

	<body>
		<div id="wrapper">
			<a href="http://github.com/h3rald/h3rald"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png" alt="Fork me on GitHub" /></a>
			<div id="header">
				<!--[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...</a>]
				</div>
				<![endif]-->
				<!-- HEADER START -->
				<div id="header-container">
					<div id="header-left">
						<h1><span class="logo"></span><a id="logo" href="/" title="H3RALD"></a></h1>
					</div>
					<div id="header-right">
						<ul id="navigation">
							<li><span class="preload nav-archives"></span><a id="nav-archives" href="/archives/" title="ARCHIVES"></a></li>
							<li><span class="preload nav-projects"></span><a id="nav-projects" href="/projects/" title="PROJECTS"></a></li>
							<li><span class="preload nav-about"></span><a id="nav-about" href="/about/" title="ABOUT"></a></li>
							<li><span class="preload nav-other"></span><a id="nav-other" href="/other/" title="OTHER"></a></li>
						</ul>
					</div>
				</div>
			</div>
			<!-- HEADER END -->
			<div class="ribbon">
			</div>
			<!-- MAIN START -->
			<div id="main">
				<!-- CONTAINER START -->
				<div id="container">
					<!-- CONTENT START -->
					<div id="content" class="clearfixstandard">
						<div id="page-links">
							<span><script type="text/javascript" src="http://w.sharethis.com/button/sharethis.js#publisher=6e34d60c-b14e-4c19-9b2f-7c35a9f0ab09&amp;type=website&amp;linkfg=%23a4282d"></script></span>
						</div>

						<h2>Defining Custom Commands</h2>
						<hr />
						<div id="content-body">
							<div class="navigation"><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></div>
							<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>
<div class="section">
<h5 id="h_96">Creating a 'glyph generate' command</h5>
<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>
	<pre class="lazy"><span class="line-numbers">   1 </span> <span class="Variable">GLI</span>.<span class="Entity">desc</span> <span class="String"><span class="String">'</span>Generates a specific file required for Glyph releases<span class="String">'</span></span>
<span class="line-numbers">   2 </span> arg_name <span class="String"><span class="String">&quot;</span>file_name<span class="String">&quot;</span></span>
<span class="line-numbers">   3 </span> command <span class="Constant"><span class="Constant">:</span>generate</span> <span class="Keyword">do </span>|<span class="Variable">c</span>|
<span class="line-numbers">   4 </span>   c.<span class="Entity">action</span> <span class="Keyword">do </span>|<span class="Variable">global_options</span>,<span class="Variable">options</span>,<span class="Variable">args</span>|
<span class="line-numbers">   5 </span>     <span class="Keyword">if</span> args.<span class="Entity">blank?</span> <span class="Keyword">then</span>
<span class="line-numbers">   6 </span>       <span class="Keyword">raise</span> <span class="Variable">RuntimeError</span>, <span class="String"><span class="String">&quot;</span>You must specify a file to generate<span class="String">&quot;</span></span>
<span class="line-numbers">   7 </span>     <span class="Keyword">else</span>
<span class="line-numbers">   8 </span>       <span class="Support">Glyph</span>.<span class="Entity">run</span> <span class="String"><span class="String">'</span>custom:generate<span class="String">'</span></span>, args[<span class="Constant">0</span>]
<span class="line-numbers">   9 </span>     <span class="Keyword">end</span>
<span class="line-numbers">  10 </span>   <span class="Keyword">end</span>
<span class="line-numbers">  11 </span> <span class="Keyword">end</span>
</pre>
	<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>
	<pre class="lazy"><span class="line-numbers">   1 </span> $ glyph help
<span class="line-numbers">   2 </span> =====================================
<span class="line-numbers">   3 </span> Glyph v.0.4.0
<span class="line-numbers">   4 </span> =====================================
<span class="line-numbers">   5 </span> usage: glyph command [options]
<span class="line-numbers">   6 </span> 
<span class="line-numbers">   7 </span> Options:
<span class="line-numbers">   8 </span>     -d, --debug - Enable debugging
<span class="line-numbers">   9 </span> 
<span class="line-numbers">  10 </span> Commands:
<span class="line-numbers">  11 </span>     add      - Add a new text file to the project
<span class="line-numbers">  12 </span>     compile  - Compile the project
<span class="line-numbers">  13 </span>     config   - Get/set configuration settings
<span class="line-numbers">  14 </span>     generate - Generates a specific file required for Glyph releases
<span class="line-numbers">  15 </span>     help     - Shows list of commands or help for one command
<span class="line-numbers">  16 </span>     init     - Create a new Glyph project
<span class="line-numbers">  17 </span>     outline  - Display the document outline
<span class="line-numbers">  18 </span>     stats    - Display statistics
<span class="line-numbers">  19 </span>     todo     - Display all project TODO items
</pre>
	<p>You can now run the Glyph command as expected:</p>
	<pre class="lazy"><span class="line-numbers">   1 </span> $ glyph -d generate changelog
<span class="line-numbers">   2 </span> -- Generating CHANGELOG...
<span class="line-numbers">   3 </span> -- Done.
</pre>

</div>
							<div class="navigation"><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></div>
						</div>
						<div id="content-footer">
							<div class="share">
								<script type="text/javascript"><!--
									google_ad_client = "pub-2871497824158668";
									/* 728x90, h3rald 8.0 */
									google_ad_slot = "0081634732";
									google_ad_width = 728;
									google_ad_height = 90;
									//-->
									</script>
									<script type="text/javascript"
										src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
										</script>
									</div>
								</div>
							</div>
							<!-- CONTENT END -->
						</div>
						<!-- CONTAINER END -->
					</div>
					<div class="ribbon"></div>
					<!-- MAIN END -->
					<div id="border-bottom">
						<div id="services">
							<div class ="footer-left">
								<div id="backtype">
									<h3><span class="s-opinions preload"></span><a id="s-opinions" href="http://www.backtype.com/h3rald" title="Opinions"></a></h3>
								</div>
							</div>
							<div class ="footer-center">
								<div id="twitter">
									<h3><span class="s-tweets preload"></span><a id="s-tweets" href="http://www.twitter.com/h3rald" title="Tweets"></a></h3>
								</div>
							</div>
							<div class ="footer-right">
								<div id="delicious">
									<h3><span class="s-bookmarks preload"></span><a id="s-bookmarks" href="http://www.delicious.com/h3rald" title="Bookmarks"></a></h3>
								</div>
							</div>
						</div> <!-- SERVICES END -->
					</div>
					<div class="clearfooter"></div>
				</div> <!-- WRAPPER END -->
				<div id="footer">
					<div id="footer-container">
						<div class="footer-div">
							H3RALD Web Site v8.0.0 <em>"xStatic"</em> &mdash; &copy; 2004-2010 <strong>Fabio Cevasco</strong> &mdash; <a class="link" href="http://creativecommons.org/licenses/by-nc-nd/3.0/us/">Some rights reserved</a> | <a href="http://validator.w3.org/check?uri=referer" class="link">XHTML 1.1</a> | <a href="http://jigsaw.w3.org/css-validator/validator?uri=/custom_command.html" class="link">CSS 2.1</a>
						</div>
					</div> <!-- END FOOTER CONTAINER-->
				</div> <!-- END FOOTER -->
				<!-- 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 -->
				<script src='http://www.google-analytics.com/ga.js' type='text/javascript'></script>	
				<script src="http://www.google.com/jsapi?key=ABQIAAAA6h3j8Jri5D_da53UPbEbThRlq2n1sm52B5HDRR5tm6o8XM18FhTKn3v155RpPeD0kWnWG81QEhhifQ" type="text/javascript"></script>
				<script src="/js/compressed.js" type="text/javascript"></script>
			</body>
		</html>