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@ -215,7 +215,8 @@
</li>
<li><a href="#_buildruntime_environments">10.5. Build/runtime environments</a>
<ul class="sectlevel3">
<li><a href="#_access_a_non_flake_package_not_in_nixpkgs">10.5.1. Access a non-flake package (not in nixpkgs)</a></li>
<li><a href="#_access_a_top_level_package_from_the_nixpkgsnixos_repo_4">10.5.1. Access a top level package from the Nixpkgs/NixOS repo</a></li>
<li><a href="#_access_a_non_flake_package_not_in_nixpkgs">10.5.2. Access a non-flake package (not in nixpkgs)</a></li>
</ul>
</li>
<li><a href="#_an_old_style_nix_shell_with_access_to_a_flake">10.6. An (old-style) Nix shell with access to a flake</a></li>
@ -4878,8 +4879,124 @@ Line 15 should be replaced with:</p>
</div>
<div class="sect2">
<h3 id="_buildruntime_environments">10.5. Build/runtime environments</h3>
<div class="sect3">
<h4 id="_access_a_top_level_package_from_the_nixpkgsnixos_repo_4">10.5.1. Access a top level package from the Nixpkgs/NixOS repo</h4>
<div class="listingblock">
<div class="title">hello-with-cow</div>
<div class="content">
<pre class="pygments highlight nowrap" style="background: #f8f8f8;"><code data-lang="shell"><div class="lineno"><table class="linenotable"><tr><td class="linenos"><div class="linenodiv"><pre><span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">1</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">2</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">3</span></pre></div></td><td class="code"><div><pre style="line-height: 125%;"><span></span><span style="color: #3D7B7B; font-style: italic">#!/usr/bin/env sh</span>
cowsay<span style="color: #bbbbbb"> </span><span style="color: #BA2121">&quot;Hello from your flake!&quot;</span>
</pre></div></td></tr></table></div></code></pre>
</div>
</div>
<div class="listingblock">
<div class="title">flake.nix</div>
<div class="content">
<pre class="pygments highlight nowrap" style="background: #f8f8f8;"><code data-lang="nix"><div class="lineno"><table class="linenotable"><tr><td class="linenos"><div class="linenodiv"><pre><span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 1</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 2</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 3</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 4</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 5</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 6</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 7</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 8</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;"> 9</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">10</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">11</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">12</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">13</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">14</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">15</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">16</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">17</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">18</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">19</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">20</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">21</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">22</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">23</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">24</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">25</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">26</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">27</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">28</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">29</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">30</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">31</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">32</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">33</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">34</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">35</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">36</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">37</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">38</span>
<span style="color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px;">39</span></pre></div></td><td class="code"><div><pre style="line-height: 125%;"><span></span>{
<span style="color: #19177C">inputs</span> <span style="color: #666666">=</span> {
nixpkgs<span style="color: #666666">.</span><span style="color: #19177C">url</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;github:NixOS/nixpkgs&quot;</span>;
flake-utils<span style="color: #666666">.</span><span style="color: #19177C">url</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;github:numtide/flake-utils&quot;</span>;
};
<span style="color: #19177C">outputs</span> <span style="color: #666666">=</span> { self, nixpkgs, flake-utils }:
flake-utils<span style="color: #666666">.</span>lib<span style="color: #666666">.</span>eachDefaultSystem (system:
<span style="color: #008000; font-weight: bold">let</span>
<span style="color: #19177C">pkgs</span> <span style="color: #666666">=</span> <span style="color: #008000">import</span> nixpkgs { <span style="color: #008000; font-weight: bold">inherit</span> system; };
<span style="color: #008000; font-weight: bold">in</span>
{
<span style="color: #19177C">packages</span> <span style="color: #666666">=</span> <span style="color: #008000; font-weight: bold">rec</span> {
<span style="color: #19177C">hello</span> <span style="color: #666666">=</span> pkgs<span style="color: #666666">.</span>stdenv<span style="color: #666666">.</span>mkDerivation <span style="color: #008000; font-weight: bold">rec</span> {
<span style="background-color: #ffffcc"> <span style="color: #19177C">name</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;hello-flake&quot;</span>;
</span>
<span style="color: #19177C">src</span> <span style="color: #666666">=</span> ./.;
<span style="color: #19177C">unpackPhase</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;true&quot;</span>;
<span style="color: #19177C">buildPhase</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;:&quot;</span>;
<span style="color: #19177C">installPhase</span> <span style="color: #666666">=</span>
<span style="color: #BA2121">&#39;&#39;</span>
<span style="color: #BA2121"> mkdir -p $out/bin</span>
<span style="color: #BA2121"> cp $src/hello-flake $out/bin/hello-flake</span>
<span style="color: #BA2121"> chmod +x $out/bin/hello-flake</span>
<span style="color: #BA2121"> &#39;&#39;</span>;
};
<span style="color: #19177C">default</span> <span style="color: #666666">=</span> hello;
};
<span style="color: #19177C">apps</span> <span style="color: #666666">=</span> <span style="color: #008000; font-weight: bold">rec</span> {
<span style="color: #19177C">hello</span> <span style="color: #666666">=</span> flake-utils<span style="color: #666666">.</span>lib<span style="color: #666666">.</span>mkApp { <span style="color: #19177C">drv</span> <span style="color: #666666">=</span> self<span style="color: #666666">.</span>packages<span style="color: #666666">.</span><span style="color: #A45A77; font-weight: bold">${</span>system<span style="color: #A45A77; font-weight: bold">}</span><span style="color: #666666">.</span>hello; };
<span style="color: #19177C">default</span> <span style="color: #666666">=</span> hello;
};
}
);
}
</pre></div></td></tr></table></div></code></pre>
</div>
</div>
<div class="paragraph">
<p>Unresolved directive in recipes/build/main.adoc - include::nixpkg/main-generated.adoc[leveloffset=+1]</p>
<p>Here&#8217;s a demonstration using the flake.</p>
</div>
<div class="literalblock">
<div class="content">
<pre class="nowrap">$ nix run
this derivation will be built:
/nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv
building '/nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv'...
error: builder for '/nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv' failed with exit code 1;
last 8 log lines:
&gt; Running phase: unpackPhase
&gt; Running phase: patchPhase
&gt; Running phase: updateAutotoolsGnuConfigScriptsPhase
&gt; Running phase: configurePhase
&gt; no configure script, doing nothing
&gt; Running phase: buildPhase
&gt; Running phase: installPhase
&gt; cp: cannot stat '/nix/store/mhmgp4r3vihp0ar76ik7ah5q9djzhrdf-tempwork/hello-flake': No such file or directory
For full logs, run:
nix log /nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv</pre>
</div>
</div>
<div class="paragraph">
<p>Unresolved directive in recipes/build/main.adoc - include::flake/main-generated.adoc[leveloffset=+1]</p>
@ -4893,8 +5010,9 @@ Line 15 should be replaced with:</p>
<div class="paragraph">
<p>Unresolved directive in recipes/build/main.adoc - include::env-var/main-generated.adoc[leveloffset=+1]</p>
</div>
</div>
<div class="sect3">
<h4 id="_access_a_non_flake_package_not_in_nixpkgs">10.5.1. Access a non-flake package (not in nixpkgs)</h4>
<h4 id="_access_a_non_flake_package_not_in_nixpkgs">10.5.2. Access a non-flake package (not in nixpkgs)</h4>
<div class="paragraph">
<p>In this example, we will use a nix package (not a flake) defined in a remote git repo.
However, you can use any of the flake reference styles defined in <a href="#flakeref">Section 10.1.2, &#8220;Flakes&#8221;</a>.</p>
@ -5048,6 +5166,7 @@ by specifying the full path to <code>hello-nix</code>.</p>
<pre class="nowrap">$ hello-nix # this will fail
bash: line 40: hello-nix: command not found
$ nix develop
building '/nix/store/0qzgar07id1cpygx9yyxfsvls1w2jf0c-hello-again-env.drv'...
$ hello-nix
Hello from your nix package!</pre>
</div>
@ -5116,7 +5235,7 @@ Hello from your flake!</pre>
</div>
<div id="footer">
<div id="footer-text">
Last updated 2025-09-13 15:27:16 IST
Last updated 2025-09-13 16:14:15 IST
</div>
</div>
</body>

6
source/recipes/build/nixpkg/tempwork/flake.nix
View file

@ -12,7 +12,7 @@
{
packages = rec {
hello = pkgs.stdenv.mkDerivation rec {
name = "hello-flake";
name = "hello-with-cow";
src = ./.;
@ -23,8 +23,8 @@
installPhase =
''
mkdir -p $out/bin
cp $src/hello-flake $out/bin/hello-flake
chmod +x $out/bin/hello-flake
cp $src/hello-with-cow $out/bin
chmod +x $out/bin/hello-with-cow
'';
};
default = hello;