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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>4/tm</title>
<meta name="viewport" content="width=device-width initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="Content-Language" content="en-gb">
<link href="../inweb.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<nav role="navigation">
<h1><a href="../webs.html">Sources</a></h1>
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<li><a href="../compiler.html"><b>compiler</b></a></li>
<li><a href="../other.html">other tools</a></li>
<li><a href="../extensions.html">extensions and kits</a></li>
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<h2>Compiler Webs</h2>
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<li><a href="../inbuild/index.html">inbuild</a></li>
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<h2>Inter Modules</h2>
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<li><a href="../inter-module/index.html">inter</a></li>
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<li><a href="../../../inweb/docs/foundation-module/index.html">foundation</a></li>
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<main role="main">
<!--Weave of '4/pm' generated by 7-->
<ul class="crumbs"><li><a href="../webs.html">Source</a></li><li><a href="../compiler.html">Compiler Modules</a></li><li><a href="index.html">inbuild</a></li><li><a href="index.html#4">Chapter 4: Managing Genres of Work</a></li><li><b>Pipeline Manager</b></li></ul><p class="purpose">An Inform 7 pipeline.</p>
<ul class="toc"><li><a href="#SP1">&#167;1. Genre definition</a></li><li><a href="#SP5">&#167;5. Claiming</a></li><li><a href="#SP6">&#167;6. Searching</a></li><li><a href="#SP7">&#167;7. Copying</a></li><li><a href="#SP8">&#167;8. Build graph</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Genre definition. </b></p>
<pre class="display">
<span class="reserved">inbuild_genre</span><span class="plain"> *</span><span class="identifier">pipeline_genre</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::start</span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="identifier">pipeline_genre</span><span class="plain"> = </span><span class="functiontext">Genres::new</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"pipeline"</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">pipeline_genre</span><span class="plain">, </span><span class="constant">GENRE_WRITE_WORK_MTID</span><span class="plain">, </span><span class="functiontext">PipelineManager::write_work</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">pipeline_genre</span><span class="plain">, </span><span class="constant">GENRE_CLAIM_AS_COPY_MTID</span><span class="plain">, </span><span class="functiontext">PipelineManager::claim_as_copy</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">pipeline_genre</span><span class="plain">, </span><span class="constant">GENRE_SEARCH_NEST_FOR_MTID</span><span class="plain">, </span><span class="functiontext">PipelineManager::search_nest_for</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">pipeline_genre</span><span class="plain">, </span><span class="constant">GENRE_COPY_TO_NEST_MTID</span><span class="plain">, </span><span class="functiontext">PipelineManager::copy_to_nest</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::write_work</span><span class="plain">(</span><span class="reserved">inbuild_genre</span><span class="plain"> *</span><span class="identifier">gen</span><span class="plain">, </span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">inbuild_work</span><span class="plain"> *</span><span class="identifier">work</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%S"</span><span class="plain">, </span><span class="identifier">work</span><span class="plain">-</span><span class="element">&gt;title</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::start is used in 1/im (<a href="1-im.html#SP3">&#167;3</a>).</p>
<p class="endnote">The function PipelineManager::write_work appears nowhere else.</p>
<p class="inwebparagraph"><a id="SP3"></a><b>&#167;3. </b>Pipelines live in their namesake subdirectory of a nest:
</p>
<pre class="display">
<span class="identifier">pathname</span><span class="plain"> *</span><span class="functiontext">PipelineManager::path_within_nest</span><span class="plain">(</span><span class="reserved">inbuild_nest</span><span class="plain"> *</span><span class="identifier">N</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">N</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no nest"</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">-</span><span class="element">&gt;location</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"Pipelines"</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::path_within_nest is used in <a href="#SP6">&#167;6</a>, <a href="#SP7">&#167;7</a>.</p>
<p class="inwebparagraph"><a id="SP4"></a><b>&#167;4. </b>Pipeline copies are annotated with a structure called an <code class="display"><span class="extract">inform_pipeline</span></code>,
which stores data about pipelines used by the Inform compiler.
</p>
<pre class="display">
<span class="reserved">inform_pipeline</span><span class="plain"> *</span><span class="functiontext">PipelineManager::from_copy</span><span class="plain">(</span><span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">C</span><span class="plain">) &amp;&amp; (</span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;edition</span><span class="plain">-</span><span class="element">&gt;work</span><span class="plain">-</span><span class="element">&gt;genre</span><span class="plain"> == </span><span class="identifier">pipeline_genre</span><span class="plain">)) {</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">RETRIEVE_POINTER_inform_pipeline</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="functiontext">PipelineManager::new_copy</span><span class="plain">(</span><span class="reserved">inbuild_edition</span><span class="plain"> *</span><span class="identifier">edition</span><span class="plain">, </span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">) {</span>
<span class="reserved">inform_pipeline</span><span class="plain"> *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Pipelines::new_ip</span><span class="plain">(</span><span class="identifier">edition</span><span class="plain">-</span><span class="element">&gt;work</span><span class="plain">-</span><span class="element">&gt;title</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain"> = </span><span class="functiontext">Copies::new_in_file</span><span class="plain">(</span><span class="identifier">edition</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">STORE_POINTER_inform_pipeline</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">));</span>
<span class="identifier">E</span><span class="plain">-</span><span class="element">&gt;as_copy</span><span class="plain"> = </span><span class="identifier">C</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">C</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::from_copy appears nowhere else.</p>
<p class="endnote">The function PipelineManager::new_copy is used in <a href="#SP5">&#167;5</a>.</p>
<p class="inwebparagraph"><a id="SP5"></a><b>&#167;5. Claiming. </b>Here <code class="display"><span class="extract">arg</span></code> is a textual form of a filename or pathname, such as may have been
supplied at the command line; <code class="display"><span class="extract">ext</span></code> is a substring of it, and is its extension
(e.g., <code class="display"><span class="extract">jpg</span></code> if <code class="display"><span class="extract">arg</span></code> is <code class="display"><span class="extract">Geraniums.jpg</span></code>), or is empty if there isn't one;
<code class="display"><span class="extract">directory_status</span></code> 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="inwebparagraph">An pipeline, for us, simply needs to be a file with extension <code class="display"><span class="extract">interpipeline</span></code>.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::claim_as_copy</span><span class="plain">(</span><span class="reserved">inbuild_genre</span><span class="plain"> *</span><span class="identifier">gen</span><span class="plain">, </span><span class="reserved">inbuild_copy</span><span class="plain"> **</span><span class="identifier">C</span><span class="plain">,</span>
<span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">arg</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">ext</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">directory_status</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">directory_status</span><span class="plain"> == </span><span class="identifier">TRUE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::eq_insensitive</span><span class="plain">(</span><span class="identifier">ext</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"interpipeline"</span><span class="plain">)) {</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="identifier">Filenames::from_text</span><span class="plain">(</span><span class="identifier">arg</span><span class="plain">);</span>
<span class="plain">*</span><span class="identifier">C</span><span class="plain"> = </span><span class="functiontext">PipelineManager::claim_file_as_copy</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="functiontext">PipelineManager::claim_file_as_copy</span><span class="plain">(</span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">error_text</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TextFiles::exists</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">semantic_version_number</span><span class="plain"> </span><span class="identifier">V</span><span class="plain"> = </span><span class="identifier">VersionNumbers::null</span><span class="plain">();</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">unext</span><span class="plain">);</span>
<span class="identifier">Filenames::write_unextended_leafname</span><span class="plain">(</span><span class="identifier">unext</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain"> = </span><span class="functiontext">PipelineManager::new_copy</span><span class="plain">(</span>
<span class="functiontext">Editions::new</span><span class="plain">(</span><span class="functiontext">Works::new_raw</span><span class="plain">(</span><span class="identifier">pipeline_genre</span><span class="plain">, </span><span class="identifier">unext</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">), </span><span class="identifier">V</span><span class="plain">), </span><span class="identifier">F</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">unext</span><span class="plain">);</span>
<span class="functiontext">Works::add_to_database</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;edition</span><span class="plain">-</span><span class="element">&gt;work</span><span class="plain">, </span><span class="constant">CLAIMED_WDBC</span><span class="plain">);</span>
<span class="functiontext">PipelineManager::build_vertex</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">C</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::claim_as_copy is used in <a href="#SP2">&#167;2</a>.</p>
<p class="endnote">The function PipelineManager::claim_file_as_copy is used in <a href="#SP6">&#167;6</a>.</p>
<p class="inwebparagraph"><a id="SP6"></a><b>&#167;6. Searching. </b>Here we look through a nest to find all pipelines matching the supplied
requirements.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::search_nest_for</span><span class="plain">(</span><span class="reserved">inbuild_genre</span><span class="plain"> *</span><span class="identifier">gen</span><span class="plain">, </span><span class="reserved">inbuild_nest</span><span class="plain"> *</span><span class="identifier">N</span><span class="plain">,</span>
<span class="reserved">inbuild_requirement</span><span class="plain"> *</span><span class="identifier">req</span><span class="plain">, </span><span class="identifier">linked_list</span><span class="plain"> *</span><span class="identifier">search_results</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">req</span><span class="plain">-</span><span class="element">&gt;work</span><span class="plain">-</span><span class="element">&gt;genre</span><span class="plain">) &amp;&amp; (</span><span class="identifier">req</span><span class="plain">-</span><span class="element">&gt;work</span><span class="plain">-</span><span class="element">&gt;genre</span><span class="plain"> != </span><span class="identifier">pipeline_genre</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain"> = </span><span class="functiontext">PipelineManager::path_within_nest</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">);</span>
<span class="identifier">scan_directory</span><span class="plain"> *</span><span class="identifier">D</span><span class="plain"> = </span><span class="identifier">Directories::open</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">D</span><span class="plain">) {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">LEAFNAME</span><span class="plain">);</span>
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">Directories::next</span><span class="plain">(</span><span class="identifier">D</span><span class="plain">, </span><span class="identifier">LEAFNAME</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::get_last_char</span><span class="plain">(</span><span class="identifier">LEAFNAME</span><span class="plain">) != </span><span class="identifier">FOLDER_SEPARATOR</span><span class="plain">) {</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">LEAFNAME</span><span class="plain">);</span>
<span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain"> = </span><span class="functiontext">PipelineManager::claim_file_as_copy</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">C</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Requirements::meets</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;edition</span><span class="plain">, </span><span class="identifier">req</span><span class="plain">))) {</span>
<span class="functiontext">Nests::add_search_result</span><span class="plain">(</span><span class="identifier">search_results</span><span class="plain">, </span><span class="identifier">N</span><span class="plain">, </span><span class="identifier">C</span><span class="plain">, </span><span class="identifier">req</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">LEAFNAME</span><span class="plain">);</span>
<span class="identifier">Directories::close</span><span class="plain">(</span><span class="identifier">D</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::search_nest_for is used in <a href="#SP2">&#167;2</a>.</p>
<p class="inwebparagraph"><a id="SP7"></a><b>&#167;7. Copying. </b>Now the task is to copy a pipeline into place in a nest. This is easy,
since a pipeline is a single file; to sync, we just overwrite.
</p>
<pre class="display">
<span class="identifier">filename</span><span class="plain"> *</span><span class="functiontext">PipelineManager::filename_in_nest</span><span class="plain">(</span><span class="reserved">inbuild_nest</span><span class="plain"> *</span><span class="identifier">N</span><span class="plain">, </span><span class="reserved">inbuild_edition</span><span class="plain"> *</span><span class="identifier">E</span><span class="plain">) {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="functiontext">Editions::write_canonical_leaf</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">, </span><span class="identifier">E</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">, </span><span class="string">".interpipeline"</span><span class="plain">);</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="functiontext">PipelineManager::path_within_nest</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">), </span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">F</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::copy_to_nest</span><span class="plain">(</span><span class="reserved">inbuild_genre</span><span class="plain"> *</span><span class="identifier">gen</span><span class="plain">, </span><span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain">, </span><span class="reserved">inbuild_nest</span><span class="plain"> *</span><span class="identifier">N</span><span class="plain">,</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">syncing</span><span class="plain">, </span><span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">meth</span><span class="plain">) {</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="functiontext">PipelineManager::filename_in_nest</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">, </span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;edition</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">TextFiles::exists</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">syncing</span><span class="plain"> == </span><span class="identifier">FALSE</span><span class="plain">) { </span><span class="functiontext">Nests::overwrite_error</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">, </span><span class="identifier">C</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">meth</span><span class="plain">-</span><span class="element">&gt;methodology</span><span class="plain"> == </span><span class="constant">DRY_RUN_METHODOLOGY</span><span class="plain">) {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="string">"mkdir -p "</span><span class="plain">);</span>
<span class="identifier">Shell::quote_path</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">Filenames::get_path_to</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">));</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">STDOUT</span><span class="plain">, </span><span class="string">"%S\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">Pathnames::create_in_file_system</span><span class="plain">(</span><span class="identifier">N</span><span class="plain">-</span><span class="element">&gt;location</span><span class="plain">);</span>
<span class="identifier">Pathnames::create_in_file_system</span><span class="plain">(</span><span class="identifier">Filenames::get_path_to</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">));</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="string">"cp -f "</span><span class="plain">);</span>
<span class="identifier">Shell::quote_file</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">C</span><span class="plain">-</span><span class="element">&gt;location_if_file</span><span class="plain">);</span>
<span class="identifier">Shell::quote_file</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="functiontext">BuildSteps::shell</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">meth</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::filename_in_nest appears nowhere else.</p>
<p class="endnote">The function PipelineManager::copy_to_nest is used in <a href="#SP2">&#167;2</a>.</p>
<p class="inwebparagraph"><a id="SP8"></a><b>&#167;8. Build graph. </b>The build graph for a pipeline is just a single node: you don't need to
build a pipeline at all.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PipelineManager::build_vertex</span><span class="plain">(</span><span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">C</span><span class="plain">) {</span>
<span class="functiontext">Graphs::copy_vertex</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PipelineManager::build_vertex is used in <a href="#SP5">&#167;5</a>.</p>
<hr class="tocbar">
<ul class="toc"><li><a href="4-tm.html">Back to 'Template Manager'</a></li><li><i>(This section ends Chapter 4: Managing Genres of Work.)</i></li></ul><hr class="tocbar">
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