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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Template Manager</title>
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function togglePopup(material_id) {
var popup = document.getElementById(material_id);
popup.classList.toggle("show");
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<h1><a href="../index.html">
<img src="../docs-assets/Inform.png" height=72">
</a></h1>
<ul><li><a href="../index.html">home</a></li>
</ul><h2>Compiler</h2><ul>
<li><a href="../structure.html">structure</a></li>
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</ul><h2>Related Projects</h2><ul>
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<main role="main">
<!--Weave of 'Template Manager' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../inbuildn.html">Inbuild Modules</a></li><li><a href="index.html">supervisor</a></li><li><a href="index.html#4">Chapter 4: Genre Management</a></li><li><b>Template Manager</b></li></ul></div>
<p class="purpose">Claiming and creating copies of the template genre: used for website and interpreter templates when releasing an Inform project.</p>
<ul class="toc"><li><a href="4-tm.html#SP1">&#167;1. Genre definition</a></li><li><a href="4-tm.html#SP4">&#167;4. Claiming</a></li><li><a href="4-tm.html#SP5">&#167;5. Searching</a></li><li><a href="4-tm.html#SP6">&#167;6. Copying</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Genre definition. </b>The <span class="extract"><span class="extract-syntax">template_genre</span></span> can be summarised as follows. Website templates
are directories. They are recognised by containing either a metadata file
called <span class="extract"><span class="extract-syntax">(manifest).txt</span></span> or <span class="extract"><span class="extract-syntax">index.html</span></span>, or both. They are stored in
nests, in <span class="extract"><span class="extract-syntax">N/Templates/Title-vVersion</span></span>. Their build graphs are single
vertices with no build or use edges.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">TemplateManager::start</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::start</span></span>:<br/>Inbuild Control - <a href="1-ic.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">template_genre</span><span class="plain-syntax"> = </span><a href="2-gnr.html#SP1" class="function-link"><span class="function-syntax">Genres::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"template"</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_WRITE_WORK_MTID</span><span class="plain-syntax">, </span><a href="4-tm.html#SP1" class="function-link"><span class="function-syntax">TemplateManager::write_work</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_CLAIM_AS_COPY_MTID</span><span class="plain-syntax">, </span><a href="4-tm.html#SP4" class="function-link"><span class="function-syntax">TemplateManager::claim_as_copy</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_SEARCH_NEST_FOR_MTID</span><span class="plain-syntax">, </span><a href="4-tm.html#SP5" class="function-link"><span class="function-syntax">TemplateManager::search_nest_for</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_COPY_TO_NEST_MTID</span><span class="plain-syntax">, </span><a href="4-tm.html#SP6" class="function-link"><span class="function-syntax">TemplateManager::copy_to_nest</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">TemplateManager::write_work</span><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_work</span><span class="plain-syntax"> *</span><span class="identifier-syntax">work</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">work</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>Templates live in the <span class="extract"><span class="extract-syntax">Templates</span></span> subdirectory of a nest:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="function-syntax">TemplateManager::path_within_nest</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::path_within_nest</span></span>:<br/><a href="4-tm.html#SP5">&#167;5</a>, <a href="4-tm.html#SP6">&#167;6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">N</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no nest"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">location</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Templates"</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>Template copies are annotated with a structure called an <span class="extract"><span class="extract-syntax">inform_template</span></span>,
which stores data about extensions used by the Inform compiler.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inform_template</span><span class="plain-syntax"> *</span><span class="function-syntax">TemplateManager::from_copy</span><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">C</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">edition</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">work</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">genre</span><span class="plain-syntax"> == </span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">RETRIEVE_POINTER_inform_template</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">metadata</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="function-syntax">TemplateManager::new_copy</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::new_copy</span></span>:<br/><a href="4-tm.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_work</span><span class="plain-syntax"> *</span><span class="identifier-syntax">work</span><span class="plain-syntax"> = </span><a href="2-wrk.html#SP2" class="function-link"><span class="function-syntax">Works::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">, </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">), </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_edition</span><span class="plain-syntax"> *</span><span class="identifier-syntax">edition</span><span class="plain-syntax"> = </span><a href="2-edt.html#SP1" class="function-link"><span class="function-syntax">Editions::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">work</span><span class="plain-syntax">, </span><span class="identifier-syntax">VersionNumbers::null</span><span class="plain-syntax">());</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="2-cps.html#SP3" class="function-link"><span class="function-syntax">Copies::new_in_path</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">edition</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="5-ts.html#SP2" class="function-link"><span class="function-syntax">Templates::scan</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. Claiming. </b>Here <span class="extract"><span class="extract-syntax">arg</span></span> is a textual form of a filename or pathname, such as may have been
supplied at the command line; <span class="extract"><span class="extract-syntax">ext</span></span> is a substring of it, and is its extension
(e.g., <span class="extract"><span class="extract-syntax">jpg</span></span> if <span class="extract"><span class="extract-syntax">arg</span></span> is <span class="extract"><span class="extract-syntax">Geraniums.jpg</span></span>), or is empty if there isn't one;
<span class="extract"><span class="extract-syntax">directory_status</span></span> is true if we know for some reason that this is a directory
not a file, false if we know the reverse, and otherwise not applicable.
</p>
<p class="commentary">Templates are slightly hard to recognise in isolation, but they contain
either a manifest file, or else an <span class="extract"><span class="extract-syntax">index.html</span></span>, so that will have to do.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">TemplateManager::claim_as_copy</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::claim_as_copy</span></span>:<br/><a href="4-tm.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> **</span><span class="identifier-syntax">C</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">arg</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ext</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">directory_status</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">directory_status</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::from_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">arg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="4-tm.html#SP4" class="function-link"><span class="function-syntax">TemplateManager::claim_folder_as_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="function-syntax">TemplateManager::claim_folder_as_copy</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::claim_folder_as_copy</span></span>:<br/><a href="4-tm.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">canary1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"(manifest).txt"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">canary2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"index.html"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">canary1</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">canary2</span><span class="plain-syntax">)))</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-tm.html#SP3" class="function-link"><span class="function-syntax">TemplateManager::new_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Pathnames::directory_name</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. Searching. </b>Here we look through a nest to find all kits matching the supplied
requirements.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">TemplateManager::search_nest_for</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::search_nest_for</span></span>:<br/><a href="4-tm.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_requirement</span><span class="plain-syntax"> *</span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">req</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">work</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">genre</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">req</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">work</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">genre</span><span class="plain-syntax"> != </span><span class="identifier-syntax">template_genre</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="4-tm.html#SP2" class="function-link"><span class="function-syntax">TemplateManager::path_within_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Directories::listing</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Platform::is_folder_separator</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get_last_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::delete_last_character</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">Q</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="4-tm.html#SP4" class="function-link"><span class="function-syntax">TemplateManager::claim_folder_as_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Q</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">C</span><span class="plain-syntax">) &amp;&amp; (</span><a href="2-rqr.html#SP7" class="function-link"><span class="function-syntax">Requirements::meets</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">edition</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><a href="2-nst.html#SP6" class="function-link"><span class="function-syntax">Nests::add_search_result</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>&#167;6. Copying. </b>Now the task is to copy a template into place in a nest. Since a template is
a folder, we need to <span class="extract"><span class="extract-syntax">rsync</span></span> it.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="function-syntax">TemplateManager::pathname_in_nest</span><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_edition</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="2-edt.html#SP2" class="function-link"><span class="function-syntax">Editions::write_canonical_leaf</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><a href="4-tm.html#SP2" class="function-link"><span class="function-syntax">TemplateManager::path_within_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">), </span><span class="identifier-syntax">leaf</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">P</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">TemplateManager::copy_to_nest</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">TemplateManager::copy_to_nest</span></span>:<br/><a href="4-tm.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">syncing</span><span class="plain-syntax">, </span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax"> *</span><span class="identifier-syntax">meth</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="4-tm.html#SP6" class="function-link"><span class="function-syntax">TemplateManager::pathname_in_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">edition</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">canary1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"(manifest).txt"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">canary2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"index.html"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">canary1</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">canary2</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">syncing</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) { </span><a href="2-cps.html#SP15" class="function-link"><span class="function-syntax">Copies::overwrite_error</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">meth</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">methodology</span><span class="plain-syntax"> == </span><span class="constant-syntax">DRY_RUN_METHODOLOGY</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="string-syntax">"mkdir -p "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_path</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="string-syntax">"%S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">command</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">location</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><a href="4-tm.html#SP2" class="function-link"><span class="function-syntax">TemplateManager::path_within_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">meth</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">methodology</span><span class="plain-syntax"> == </span><span class="constant-syntax">DRY_RUN_METHODOLOGY</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="string-syntax">"rsync -a --delete "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_path</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">location_if_path</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_path</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="string-syntax">"%S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">command</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::rsync</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">location_if_path</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
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