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<!doctype html><html lang=en-us><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="ie=edge"><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><script src=https://code.iconify.design/1/1.0.7/iconify.min.js></script><link rel=preload as=font href=/fonts/vendor/jost/jost-v4-latin-regular.woff2 type=font/woff2 crossorigin><link rel=preload as=font href=/fonts/vendor/jost/jost-v4-latin-700.woff2 type=font/woff2 crossorigin><link rel=stylesheet href=/main.7eddbef50c63a34a7ce8d3d4323fd9d90d4a1ed40f1dac16e7f06f603627c8fcb7a465d753bb51709c98661474547c7972beae0a5876e777466d416c709dea36.css integrity="sha512-ft2+9Qxjo0p86NPUMj/Z2Q1KHtQPHawW5/BvYDYnyPy3pGXXU7tRcJyYZhR0VHx5cr6uClh253dGbUFscJ3qNg==" crossorigin=anonymous><noscript><style>img.lazyload{display:none}</style></noscript><meta name=robots content="index, follow"><meta name=googlebot content="index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1"><meta name=bingbot content="index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1"><title>Build Files | Arsen Dev</title><meta name=description content="Understanding AdvMake Build Files"><link rel=canonical href=/docs/advmake/build-files/><meta name=twitter:card content="summary"><meta name=twitter:title content="Build Files"><meta name=twitter:description content="Understanding AdvMake Build Files"><meta name=twitter:site content="@"><meta name=twitter:creator content="@"><meta property="og:title" content="Build Files"><meta property="og:description" content="Understanding AdvMake Build Files"><meta property="og:type" content="article"><meta property="og:url" content="/docs/advmake/build-files/"><meta property="og:site_name" content="Arsen Dev"><meta property="article:publisher" content="https://www.facebook.com/"><meta property="article:author" content="https://www.facebook.com/"><meta property="og:locale" content><script type=application/ld+json>{"@context":"http://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"\/"},{"@type":"ListItem","position":2,"name":"Docsadvmakebuild Files","item":"\/docsadvmakebuild-files\/"}]}</script><meta name=theme-color content="#fff"><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/site.webmanifest></head><body class="docs single"><div class="header-bar fixed-top"></div><header class="navbar fixed-top navbar-expand-md navbar-light"><div class=container><input class="menu-btn order-0" type=checkbox id=menu-btn>
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<label class="menu-icon d-md-none" for=menu-btn><span class=navicon></span></label><a class="navbar-brand order-1 order-md-0 mr-auto" href=/>Arsen Dev</a>
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<span class=toggle-dark><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-moon"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg></span><span class=toggle-light><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-sun"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></span></button><ul class="navbar-nav social-nav order-3 order-md-5"><li class=nav-item><a class=nav-link href=https://gitea.arsenm.dev/Arsen6331><span class=iconify data-icon=cib:gitea data-inline=false></span><span class="ml-2 sr-only">Gitea</span></a></li><li class=nav-item><a class=nav-link href=https://gitlab.com/moussaelianarsen><span class=iconify data-icon=fa-brands:gitlab data-inline=false></span><span class="ml-2 sr-only">GitLab</span></a></li></ul><div class="collapse navbar-collapse order-4 order-md-1"><ul class="navbar-nav main-nav mr-auto order-5 order-md-2"><li class=nav-item><a class=nav-link href=/>Home</a></li><li class="nav-item active"><a class=nav-link href=/docs/>Docs</a></li></ul><div class="break order-6 d-md-none"></div><form class="navbar-form flex-grow-1 order-7 order-md-3"><input id=userinput class="form-control is-search" type=search placeholder="Search docs..." aria-label="Search docs..." autocomplete=off><div id=suggestions class="shadow bg-white rounded"></div></form></div></div></header><div class="wrap container" role=document><div class=content><div class="row flex-xl-nowrap"><div class="col-lg-5 col-xl-4 docs-sidebar"><nav class=docs-links aria-label="Main navigation"><h3>Docs</h3><ul class=list-unstyled><li><a class=docs-link href=/docs/advmake/>AdvMake Docs</a></li><li><a class=docs-link href=/docs/opensend/>OpenSend Docs</a></li><li><a class=docs-link href=/docs/pak/>Pak Docs</a></li></ul></nav></div><nav class="docs-toc d-none d-xl-block col-xl-3" aria-label="Secondary navigation"><div class=page-links><h3>On this page</h3><nav id=TableOfContents><ul><li><ul><li><a href=#format>Format</a></li><li><a href=#configuration>Configuration</a></li><li><a href=#builtins>Builtins</a></li></ul></li></ul></nav></div></nav><main class="docs-content col-lg-11 col-xl-9 mx-xl-auto"><a href=..>⇐ AdvMake Docs</a><h1 style=margin-top:.2rem>Build Files</h1><p class=lead></p><p><a class=btn style=color:#fff;background-color:green href=https://gitea.arsenm.dev/Arsen6331/advmake><span class=iconify data-icon=cib:gitea></span> AdvMake</a>
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<a class=btn style=color:#fff;background-color:OrangeRed href=https://www.gitlab.com/moussaelianarsen/advmake><span class=iconify data-icon=fa-brands:gitlab></span> AdvMake</a></p><h3 id=format>Format<a href=#format class=anchor aria-hidden=true>#</a></h3><p>AdvMake uses <a href=https://github.com/bazelbuild/starlark>Starlark</a> as the format for its build files.
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Extra builtins are also defined for both convenience and extra functionality.</p><p>Starlark is a Python-like language meant for configuration files.</p><h3 id=configuration>Configuration<a href=#configuration class=anchor aria-hidden=true>#</a></h3><p>Build files are by default called <code>AdvMakefile</code>, but that can be set via <code>-f</code></p><p>An AdvMakefile example can be found at AdvMake’s repo as it uses AdvMake itself.</p><p>AdvMake runs functions exposed by starlark in the format <code><name>_<target></code>.
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To set the default name and target, the global variables <code>defaultName</code>, and <code>defaultTarget</code> must be set.
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Here is an example from AdvMake’s AdvMakefile:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>defaultName</span> <span class=o>=</span> <span class=s2>"advmake"</span>
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<span class=n>defaultTarget</span> <span class=o>=</span> <span class=s2>"build"</span>
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</code></pre></div><p>This will tell AdvMake to run the function <code>advmake_build()</code> when run with no arguments.</p><p>If AdvMake is run with one argument (such as <code>advmake install</code>), it will use the default name with the specified target,
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so in that case, it would run <code>advmake_install()</code>.</p><p>If run with two arguments, AdvMake will use the first argument as the name and the second as the target.
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So, running <code>advmake hello world</code> would run the function <code>hello_world()</code>.</p><h3 id=builtins>Builtins<a href=#builtins class=anchor aria-hidden=true>#</a></h3><p>As previously mentioned, AdvMake comes with extra builtins. Those are as follows:</p><h4 id=log><code>log()</code><a href=#log class=anchor aria-hidden=true>#</a></h4><p>The log function uses zerolog in go to log a message to STDOUT. It has two arguments.
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The first is a string with the message to log, and the second is <code>level</code> which is optional</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>log</span><span class=p>(</span><span class=s2>"Info log"</span><span class=p>)</span> <span class=c1># Default level is info</span>
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<span class=n>log</span><span class=p>(</span><span class=s2>"Warn log"</span><span class=p>,</span> <span class=n>level</span><span class=o>=</span><span class=s2>"warn"</span><span class=p>)</span> <span class=c1># Warn level log</span>
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<span class=n>log</span><span class=p>(</span><span class=s2>"Debug log"</span><span class=p>,</span> <span class=n>level</span><span class=o>=</span><span class=s2>"debug"</span><span class=p>)</span> <span class=c1># Debug level log</span>
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<span class=n>log</span><span class=p>(</span><span class=s2>"Fatal log"</span><span class=p>,</span> <span class=n>level</span><span class=o>=</span><span class=s2>"fatal"</span><span class=p>)</span> <span class=c1># Fatal level log. This will exit the program when executed</span>
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</code></pre></div><hr><h4 id=execute><code>execute()</code><a href=#execute class=anchor aria-hidden=true>#</a></h4><p>The execute function runs a script using <code>sh -c</code>. This function has three arguments.
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The first is required and is a string with the script to run, the second is <code>output</code>
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which is optional. It can be set to <code>return</code>, <code>stdout</code>, or <code>both</code>, and the default is <code>both</code>.</p><p>The <code>output</code> argument controls where the script’s output will be directed:</p><ul><li><code>return</code>: Returns script output as string</li><li><code>stdout</code>: Prints script output to STDOUT, returning nothing</li><li><code>both</code>: Prints to STDOUT and returns as string</li></ul><p>The third argument is <code>concurrent</code> which can be either <code>True</code> or <code>False</code>, default <code>False</code>.
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If <code>concurrent</code> is set to <code>True</code>, all the lines in the script will be split and run concurrently
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via goroutines. The maximum threads for goroutines can be controlled using the <code>GOMAXPROCS</code> environment
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variable and is by default the amount of CPU cores present.</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>user</span> <span class=o>=</span> <span class=n>execute</span><span class=p>(</span><span class=s2>"whoami"</span><span class=p>)</span> <span class=c1># This will print the username to STDOUT and set the user variable to it</span>
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<span class=n>user</span> <span class=o>=</span> <span class=n>execute</span><span class=p>(</span><span class=s2>"whoami"</span><span class=p>,</span> <span class=n>output</span><span class=o>=</span><span class=s2>"return"</span><span class=p>)</span> <span class=c1># This will set the user variable to the username but not print it</span>
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<span class=n>execute</span><span class=p>(</span><span class=s2>"""
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</span><span class=s2>cp file destination
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</span><span class=s2>mv destination destination-1
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</span><span class=s2>echo 'hello world'
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</span><span class=s2>"""</span><span class=p>)</span> <span class=c1># Example of a multiline script</span>
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<span class=n>execute</span><span class=p>(</span><span class=s2>"""
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</span><span class=s2>install -Dm755 program /usr/bin
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</span><span class=s2>install -Dm755 program.cfg /etc
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</span><span class=s2>"""</span><span class=p>,</span> <span class=n>concurrent</span><span class=o>=</span><span class=bp>True</span><span class=p>)</span> <span class=c1># Example of a concurrent multiline script</span>
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</code></pre></div><hr><h4 id=getenv><code>getEnv()</code><a href=#getenv class=anchor aria-hidden=true>#</a></h4><p>The getEnv function simply returns the value of the environment variable specified in its first argument.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>term</span> <span class=o>=</span> <span class=n>getEnv</span><span class=p>(</span><span class=s2>"TERM"</span><span class=p>)</span> <span class=c1># Sets variable term to value of $TERM</span>
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<span class=k>print</span><span class=p>(</span><span class=s2>"Nice "</span> <span class=o>+</span> <span class=n>term</span><span class=p>)</span> <span class=c1># Prints "Nice $TERM"</span>
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</code></pre></div><hr><h4 id=setenv><code>setEnv()</code><a href=#setenv class=anchor aria-hidden=true>#</a></h4><p>The setEnv function sets an environment variable. It has three arguments.
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The first is the key, it is the name of the environment variable.
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The second is the new value, what the key should be set to.
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The third is optional, it is <code>onlyIfUnset</code> and it can be set to <code>True</code> or <code>False</code>, default <code>False</code></p><p><code>onlyIfUnset</code> checks that the variable is not already set before setting it, this can be useful for
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setting defaults.</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>setEnv</span><span class=p>(</span><span class=s2>"MY_ENV_VAR"</span><span class=p>,</span> <span class=s2>"Hello, World"</span><span class=p>)</span> <span class=c1># Sets $MY_ENV_VAR to "Hello, World"</span>
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<span class=n>setEnv</span><span class=p>(</span><span class=s2>"CC"</span><span class=p>,</span> <span class=s2>"gcc"</span><span class=p>,</span> <span class=n>onlyIfUnset</span><span class=o>=</span><span class=bp>True</span><span class=p>)</span> <span class=c1># Sets $CC to "gcc", but only if $CC is not already set</span>
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</code></pre></div><hr><h4 id=expandfile><code>expandFile()</code><a href=#expandfile class=anchor aria-hidden=true>#</a></h4><p>The expandFile function replaces all instances of $VAR with the value specified.</p><p>expandFile has two arguments. The first accepts a filename to modify.
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The second accepts a dictionary to act as mappings for value replacements.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>expandFile</span><span class=p>(</span><span class=s2>"a.txt"</span><span class=p>,</span> <span class=p>{</span><span class=s2>"A"</span><span class=p>:</span> <span class=s2>"Hello"</span><span class=p>,</span> <span class=s2>"B"</span><span class=p>:</span> <span class=s2>"World"</span><span class=p>})</span> <span class=c1># Replace $A with Hello and $B with world in file a.txt</span>
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</code></pre></div><hr><h4 id=download><code>download()</code><a href=#download class=anchor aria-hidden=true>#</a></h4><p>The download function downloads a file at a URL.</p><p>download has two arguments. The first is a URL, and the second is an optional
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argument called <code>filename</code>. If <code>filename</code> is not provided, the filename will
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be taken from the URL.</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>download</span><span class=p>(</span><span class=s2>"https://www.arsenm.dev/logo-white.png"</span><span class=p>)</span> <span class=c1># Downloads logo-white.png</span>
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<span class=n>download</span><span class=p>(</span><span class=s2>"https://www.arsenm.dev/logo-white.png"</span><span class=p>,</span> <span class=n>filename</span><span class=o>=</span><span class=s2>"logo.png"</span><span class=p>)</span> <span class=c1># Downloads logo-white.png as logo.png</span>
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</code></pre></div><hr><h4 id=lookpath><code>lookPath()</code><a href=#lookpath class=anchor aria-hidden=true>#</a></h4><p>The lookPath function uses go’s <code>exec.LookPath()</code> to find the absolute path of a command.
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It has a single argument which is the command to look for. If a command is not found, lookPath
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returns <code>-1</code>.</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>lookPath</span><span class=p>(</span><span class=s2>"sh"</span><span class=p>)</span> <span class=c1># /bin/sh</span>
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<span class=n>lookPath</span><span class=p>(</span><span class=s2>"nonExistentCommand"</span><span class=p>)</span> <span class=c1># -1</span>
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</code></pre></div><hr><h4 id=userchoice><code>userChoice()</code><a href=#userchoice class=anchor aria-hidden=true>#</a></h4><p>The userChoice function presents the user with a choice. It has two arguments. The first
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is a prompt to be displayed to the user, and the second is a list of choices.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>userChoice</span><span class=p>(</span><span class=s2>"Choose command"</span><span class=p>,</span> <span class=p>[</span><span class=s2>"find"</span><span class=p>,</span> <span class=s2>"ls"</span><span class=p>])</span>
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<span class=c1># This returns:</span>
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<span class=c1># [1] "find"</span>
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<span class=c1># [2] "ls"</span>
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<span class=c1># Choose command:</span>
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</code></pre></div><p>The function will return the chosen object (if input to above is <code>1</code>, function returns <code>"find"</code>)</p><hr><h4 id=input><code>input()</code><a href=#input class=anchor aria-hidden=true>#</a></h4><p>The input function is a simple function that uses go’s <code>fmt.Print()</code> and <code>fmt.Scanln()</code> to replicate
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the functionality of python’s <code>input()</code> function. It has a single argument, which is the prompt and returns
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the inputted text.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=n>x</span> <span class=o>=</span> <span class=nb>input</span><span class=p>(</span><span class=s2>"Name: "</span><span class=p>)</span> <span class=c1># This will print "Name: " and then wait for input.</span>
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</code></pre></div><hr><h4 id=fileexists><code>fileExists()</code><a href=#fileexists class=anchor aria-hidden=true>#</a></h4><p>The fileExists function checks if a specified file exists and is accessible in the filesystem. It has a single
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argument which is the path to the file being checked, and returns a boolean reflecting the state of the file.</p><p>Examples:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=k>if</span> <span class=n>fileExists</span><span class=p>(</span><span class=s2>"/etc/passwd"</span><span class=p>):</span>
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<span class=k>print</span><span class=p>(</span><span class=s2>"/etc/passwd exists!"</span><span class=p>)</span> <span class=c1># /etc/passwd exists!</span>
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<span class=k>if</span> <span class=n>fileExists</span><span class=p>(</span><span class=s2>"/abcdef"</span><span class=p>):</span>
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<span class=k>print</span><span class=p>(</span><span class=s2>"/abcdef exists!"</span><span class=p>)</span> <span class=c1># No output because /abcdef most likely does not exist</span>
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</code></pre></div><hr><h4 id=getos><code>getOS()</code><a href=#getos class=anchor aria-hidden=true>#</a></h4><p>The getOS function returns the value of <code>runtime.GOOS</code>. It has no arguments.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=k>if</span> <span class=n>getOS</span><span class=p>()</span> <span class=o>==</span> <span class=s2>"linux"</span><span class=p>:</span>
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<span class=k>print</span><span class=p>(</span><span class=s2>"This is Linux!"</span><span class=p>)</span>
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</code></pre></div><hr><h4 id=getarch><code>getArch()</code><a href=#getarch class=anchor aria-hidden=true>#</a></h4><p>The getArch function returns the value of <code>runtime.GOARCH</code>. It has no arguments.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=k>if</span> <span class=n>getArch</span><span class=p>()</span> <span class=o>==</span> <span class=s2>"386"</span><span class=p>:</span>
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<span class=k>print</span><span class=p>(</span><span class=s2>"x86 32-bit"</span><span class=p>)</span>
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</code></pre></div><hr><h4 id=getcpunum><code>getCPUNum()</code><a href=#getcpunum class=anchor aria-hidden=true>#</a></h4><p>The getCPUNum function returns the amount of CPUs available to AdvMake. It has no arguments.</p><p>Example:</p><div class=highlight><pre class=chroma><code class=language-python data-lang=python><span class=k>print</span><span class=p>(</span><span class=n>getCPUNum</span><span class=p>()</span> <span class=o>+</span> <span class=s2>" CPUs available!"</span><span class=p>)</span>
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