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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!--Weave of 'Build Methodology' generated by 7-->
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inbuild Modules</a></li><li><a href="index.html">supervisor</a></li><li><a href="index.html#3">Chapter 3: Incremental Builds</a></li><li><b>Build Methodology</b></li></ul><p class="purpose">Whether to run tasks internally in some merged tool, or run via the shell, or simply trace to the standard output what we think ought to be done.</p>
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. </b>This is rather grandly named for what it is: it's just a bundle of settings
about how to carry out build steps. Should we (a) make a dry run, just printing
hypothetical shell commands, or (b) issue those shell commands via <code class="display"><span class="extract">system</span></code>,
or (c) take direct action by calling functions within the current executable?
If (a) or (b) then we will need to know the locations of the executable files
for the tools <code class="display"><span class="extract">inter</span></code>, <code class="display"><span class="extract">inform6</span></code>, <code class="display"><span class="extract">inform7</span></code> and <code class="display"><span class="extract">inblorb</span></code>.
</p>
<pre class="definitions">
<span class="definitionkeyword">enum</span> <span class="constant">DRY_RUN_METHODOLOGY</span><span class="definitionkeyword"> from </span><span class="constant">1</span>
<span class="definitionkeyword">enum</span> <span class="constant">SHELL_METHODOLOGY</span>
<span class="definitionkeyword">enum</span> <span class="constant">INTERNAL_METHODOLOGY</span>
</pre>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">build_methodology</span><span class="plain"> {</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">to_inter</span><span class="plain">;</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">to_inform6</span><span class="plain">;</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">to_inform7</span><span class="plain">;</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">to_inblorb</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">methodology</span><span class="plain">;</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">build_methodology</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The structure build_methodology is accessed in 3/bs2, 3/is, 3/is2, 3/is3, 3/is4, 4/em, 4/km, 4/lm, 4/pm, 4/tm and here.</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b>If the <code class="display"><span class="extract">tangled</span></code> flag is set, we expect <code class="display"><span class="extract">inform7</span></code>, for example, to be at
<code class="display"><span class="extract">tools_path/inform7/Tangled/inform7</span></code>; if it is clear, we expect it only to
be <code class="display"><span class="extract">tools_path/inform7</span></code>. This is relevant only for the command-line Inbuild,
which used tangled mode by default, but untangled mode if the user has
specified an explicit path at the command line.
</p>
<pre class="display">
<span class="reserved">build_methodology</span><span class="plain"> *</span><span class="functiontext">BuildMethodology::new<button class="popup" onclick="togglePopup('usagePopup131')">...<span class="popuptext" id="usagePopup131">Usage of <b>BuildMethodology::new</b>:<br><a href="#SP3">&#167;3</a></span></button></span><span class="plain">(</span><span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">tools_path</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">tangled</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">meth</span><span class="plain">) {</span>
<span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">BM</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">build_methodology</span><span class="plain">);</span>
<span class="identifier">BM</span><span class="plain">-&gt;</span><span class="element">methodology</span><span class="plain"> = </span><span class="identifier">meth</span><span class="plain">;</span>
<span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">inter_path</span><span class="plain"> = </span><span class="identifier">tools_path</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tangled</span><span class="plain">) {</span>
<span class="identifier">inter_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inter_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inter"</span><span class="plain">);</span>
<span class="identifier">inter_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inter_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"Tangled"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">BM</span><span class="plain">-&gt;</span><span class="element">to_inter</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">inter_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inter"</span><span class="plain">);</span>
<span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">inform6_path</span><span class="plain"> = </span><span class="identifier">tools_path</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tangled</span><span class="plain">) {</span>
<span class="identifier">inform6_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inform6_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inform6"</span><span class="plain">);</span>
<span class="identifier">inform6_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inform6_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"Tangled"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">BM</span><span class="plain">-&gt;</span><span class="element">to_inform6</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">inform6_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inform6"</span><span class="plain">);</span>
<span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">inform7_path</span><span class="plain"> = </span><span class="identifier">tools_path</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tangled</span><span class="plain">) {</span>
<span class="identifier">inform7_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inform7_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inform7"</span><span class="plain">);</span>
<span class="identifier">inform7_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inform7_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"Tangled"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">BM</span><span class="plain">-&gt;</span><span class="element">to_inform7</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">inform7_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inform7"</span><span class="plain">);</span>
<span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">inblorb_path</span><span class="plain"> = </span><span class="identifier">tools_path</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">tangled</span><span class="plain">) {</span>
<span class="identifier">inblorb_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inblorb_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inblorb"</span><span class="plain">);</span>
<span class="identifier">inblorb_path</span><span class="plain"> = </span><span class="identifier">Pathnames::subfolder</span><span class="plain">(</span><span class="identifier">inblorb_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"Tangled"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">BM</span><span class="plain">-&gt;</span><span class="element">to_inblorb</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">inblorb_path</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"inblorb"</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">BM</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP3"></a><b>&#167;3. </b>The <code class="display"><span class="extract">inform7</span></code> tool only ever uses the internal methodology, for which
these filenames are irrelevant, since no shell commands are ever issued.
It gets its BM by calling the following:
</p>
<pre class="display">
<span class="reserved">build_methodology</span><span class="plain"> *</span><span class="functiontext">BuildMethodology::stay_in_current_process<button class="popup" onclick="togglePopup('usagePopup132')">...<span class="popuptext" id="usagePopup132">Usage of <b>BuildMethodology::stay_in_current_process</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">return</span><span class="plain"> </span><span class="functiontext"><a href="#SP2">BuildMethodology::new</a></span><span class="plain">(</span><span class="identifier">NULL</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">, </span><span class="constant">INTERNAL_METHODOLOGY</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
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