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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
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<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-scrollfix>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#hooks" class="md-nav__link">
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<div class="md-sidebar md-sidebar--secondary" data-md-component="toc" >
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
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<span class="md-nav__icon md-icon"></span>
Table of contents
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<ul class="md-nav__list" data-md-scrollfix>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#hooks" class="md-nav__link">
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</div>
<div class="md-content">
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
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</ul>
<h2 id="hooks">Hooks</h2>
<p>Git has another nice feature called hooks. Hooks are basically scripts which will be called when a certain event happens. Here is where hooks are located:</p>
<pre><code class="language-bash">$ ls .git/hooks/
<div class="highlight"><pre><span></span><code>$ ls .git/hooks/
applypatch-msg.sample fsmonitor-watchman.sample pre-applypatch.sample pre-push.sample pre-receive.sample update.sample
commit-msg.sample post-update.sample pre-commit.sample pre-rebase.sample prepare-commit-msg.sample
</code></pre>
</code></pre></div>
<p>Names are self explanatory. These hooks are useful when you want to do certain things when a certain event happens. If you want to run tests before pushing code, you would want to setup <code>pre-push</code> hooks. Let's try to create a pre commit hook.</p>
<pre><code class="language-bash">$ echo &quot;echo this is from pre commit hook&quot; &gt; .git/hooks/pre-commit
<div class="highlight"><pre><span></span><code>$ <span class="nb">echo</span> <span class="s2">&quot;echo this is from pre commit hook&quot;</span> &gt; .git/hooks/pre-commit
$ chmod +x .git/hooks/pre-commit
</code></pre>
</code></pre></div>
<p>We basically create a file called <code>pre-commit</code> in hooks folder and make it executable. Now if we make a commit, we should see the message getting printed.</p>
<pre><code class="language-bash">$ echo &quot;sample file&quot; &gt; sample.txt
<div class="highlight"><pre><span></span><code>$ <span class="nb">echo</span> <span class="s2">&quot;sample file&quot;</span> &gt; sample.txt
$ git add sample.txt
$ git commit -m &quot;adding sample file&quot;
this is from pre commit hook # &lt;===== THE MESSAGE FROM HOOK EXECUTION
[master 9894e05] adding sample file
1 file changed, 1 insertion(+)
create mode 100644 sample.txt
</code></pre>
$ git commit -m <span class="s2">&quot;adding sample file&quot;</span>
this is from pre commit hook <span class="c1"># &lt;===== THE MESSAGE FROM HOOK EXECUTION</span>
<span class="o">[</span>master 9894e05<span class="o">]</span> adding sample file
<span class="m">1</span> file changed, <span class="m">1</span> insertion<span class="o">(</span>+<span class="o">)</span>
create mode <span class="m">100644</span> sample.txt
</code></pre></div>
@@ -1313,40 +1313,38 @@ create mode 100644 sample.txt
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